1 /* tc-ia64.c -- Assembler for the HP/Intel IA-64 architecture.
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to
20 the Free Software Foundation, 51 Franklin Street - Fifth Floor,
21 Boston, MA 02110-1301, USA. */
35 - labels are wrong if automatic alignment is introduced
36 (e.g., checkout the second real10 definition in test-data.s)
38 <reg>.safe_across_calls and any other DV-related directives I don't
39 have documentation for.
40 verify mod-sched-brs reads/writes are checked/marked (and other
46 #include "safe-ctype.h"
47 #include "dwarf2dbg.h"
50 #include "opcode/ia64.h"
58 #define NELEMS(a) ((int) (sizeof (a)/sizeof ((a)[0])))
60 /* Some systems define MIN in, e.g., param.h. */
62 #define MIN(a,b) ((a) < (b) ? (a) : (b))
65 #define PREV_SLOT md.slot[(md.curr_slot + NUM_SLOTS - 1) % NUM_SLOTS]
66 #define CURR_SLOT md.slot[md.curr_slot]
68 #define O_pseudo_fixup (O_max + 1)
72 /* IA-64 ABI section pseudo-ops. */
73 SPECIAL_SECTION_BSS = 0,
75 SPECIAL_SECTION_SDATA,
76 SPECIAL_SECTION_RODATA,
77 SPECIAL_SECTION_COMMENT,
78 SPECIAL_SECTION_UNWIND,
79 SPECIAL_SECTION_UNWIND_INFO,
80 /* HPUX specific section pseudo-ops. */
81 SPECIAL_SECTION_INIT_ARRAY,
82 SPECIAL_SECTION_FINI_ARRAY,
99 FUNC_LT_FPTR_RELATIVE,
101 FUNC_LT_DTP_RELATIVE,
109 REG_FR = (REG_GR + 128),
110 REG_AR = (REG_FR + 128),
111 REG_CR = (REG_AR + 128),
112 REG_P = (REG_CR + 128),
113 REG_BR = (REG_P + 64),
114 REG_IP = (REG_BR + 8),
121 /* The following are pseudo-registers for use by gas only. */
133 /* The following pseudo-registers are used for unwind directives only: */
141 DYNREG_GR = 0, /* dynamic general purpose register */
142 DYNREG_FR, /* dynamic floating point register */
143 DYNREG_PR, /* dynamic predicate register */
147 enum operand_match_result
150 OPERAND_OUT_OF_RANGE,
154 /* On the ia64, we can't know the address of a text label until the
155 instructions are packed into a bundle. To handle this, we keep
156 track of the list of labels that appear in front of each
160 struct label_fix *next;
164 /* This is the endianness of the current section. */
165 extern int target_big_endian;
167 /* This is the default endianness. */
168 static int default_big_endian = TARGET_BYTES_BIG_ENDIAN;
170 void (*ia64_number_to_chars) PARAMS ((char *, valueT, int));
172 static void ia64_float_to_chars_bigendian
173 PARAMS ((char *, LITTLENUM_TYPE *, int));
174 static void ia64_float_to_chars_littleendian
175 PARAMS ((char *, LITTLENUM_TYPE *, int));
176 static void (*ia64_float_to_chars)
177 PARAMS ((char *, LITTLENUM_TYPE *, int));
179 static struct hash_control *alias_hash;
180 static struct hash_control *alias_name_hash;
181 static struct hash_control *secalias_hash;
182 static struct hash_control *secalias_name_hash;
184 /* List of chars besides those in app.c:symbol_chars that can start an
185 operand. Used to prevent the scrubber eating vital white-space. */
186 const char ia64_symbol_chars[] = "@?";
188 /* Characters which always start a comment. */
189 const char comment_chars[] = "";
191 /* Characters which start a comment at the beginning of a line. */
192 const char line_comment_chars[] = "#";
194 /* Characters which may be used to separate multiple commands on a
196 const char line_separator_chars[] = ";";
198 /* Characters which are used to indicate an exponent in a floating
200 const char EXP_CHARS[] = "eE";
202 /* Characters which mean that a number is a floating point constant,
204 const char FLT_CHARS[] = "rRsSfFdDxXpP";
206 /* ia64-specific option processing: */
208 const char *md_shortopts = "m:N:x::";
210 struct option md_longopts[] =
212 #define OPTION_MCONSTANT_GP (OPTION_MD_BASE + 1)
213 {"mconstant-gp", no_argument, NULL, OPTION_MCONSTANT_GP},
214 #define OPTION_MAUTO_PIC (OPTION_MD_BASE + 2)
215 {"mauto-pic", no_argument, NULL, OPTION_MAUTO_PIC}
218 size_t md_longopts_size = sizeof (md_longopts);
222 struct hash_control *pseudo_hash; /* pseudo opcode hash table */
223 struct hash_control *reg_hash; /* register name hash table */
224 struct hash_control *dynreg_hash; /* dynamic register hash table */
225 struct hash_control *const_hash; /* constant hash table */
226 struct hash_control *entry_hash; /* code entry hint hash table */
228 symbolS *regsym[REG_NUM];
230 /* If X_op is != O_absent, the registername for the instruction's
231 qualifying predicate. If NULL, p0 is assumed for instructions
232 that are predicatable. */
235 /* Optimize for which CPU. */
242 /* What to do when hint.b is used. */
254 explicit_mode : 1, /* which mode we're in */
255 default_explicit_mode : 1, /* which mode is the default */
256 mode_explicitly_set : 1, /* was the current mode explicitly set? */
258 keep_pending_output : 1;
260 /* What to do when something is wrong with unwind directives. */
263 unwind_check_warning,
267 /* Each bundle consists of up to three instructions. We keep
268 track of four most recent instructions so we can correctly set
269 the end_of_insn_group for the last instruction in a bundle. */
271 int num_slots_in_use;
275 end_of_insn_group : 1,
276 manual_bundling_on : 1,
277 manual_bundling_off : 1,
278 loc_directive_seen : 1;
279 signed char user_template; /* user-selected template, if any */
280 unsigned char qp_regno; /* qualifying predicate */
281 /* This duplicates a good fraction of "struct fix" but we
282 can't use a "struct fix" instead since we can't call
283 fix_new_exp() until we know the address of the instruction. */
287 bfd_reloc_code_real_type code;
288 enum ia64_opnd opnd; /* type of operand in need of fix */
289 unsigned int is_pcrel : 1; /* is operand pc-relative? */
290 expressionS expr; /* the value to be inserted */
292 fixup[2]; /* at most two fixups per insn */
293 struct ia64_opcode *idesc;
294 struct label_fix *label_fixups;
295 struct label_fix *tag_fixups;
296 struct unw_rec_list *unwind_record; /* Unwind directive. */
299 unsigned int src_line;
300 struct dwarf2_line_info debug_line;
308 struct dynreg *next; /* next dynamic register */
310 unsigned short base; /* the base register number */
311 unsigned short num_regs; /* # of registers in this set */
313 *dynreg[DYNREG_NUM_TYPES], in, loc, out, rot;
315 flagword flags; /* ELF-header flags */
318 unsigned hint:1; /* is this hint currently valid? */
319 bfd_vma offset; /* mem.offset offset */
320 bfd_vma base; /* mem.offset base */
323 int path; /* number of alt. entry points seen */
324 const char **entry_labels; /* labels of all alternate paths in
325 the current DV-checking block. */
326 int maxpaths; /* size currently allocated for
329 int pointer_size; /* size in bytes of a pointer */
330 int pointer_size_shift; /* shift size of a pointer for alignment */
334 /* These are not const, because they are modified to MMI for non-itanium1
336 /* MFI bundle of nops. */
337 static unsigned char le_nop[16] =
339 0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
340 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
342 /* MFI bundle of nops with stop-bit. */
343 static unsigned char le_nop_stop[16] =
345 0x0d, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
346 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
349 /* application registers: */
355 #define AR_BSPSTORE 18
370 {"ar.k0", 0}, {"ar.k1", 1}, {"ar.k2", 2}, {"ar.k3", 3},
371 {"ar.k4", 4}, {"ar.k5", 5}, {"ar.k6", 6}, {"ar.k7", 7},
372 {"ar.rsc", 16}, {"ar.bsp", 17},
373 {"ar.bspstore", 18}, {"ar.rnat", 19},
374 {"ar.fcr", 21}, {"ar.eflag", 24},
375 {"ar.csd", 25}, {"ar.ssd", 26},
376 {"ar.cflg", 27}, {"ar.fsr", 28},
377 {"ar.fir", 29}, {"ar.fdr", 30},
378 {"ar.ccv", 32}, {"ar.unat", 36},
379 {"ar.fpsr", 40}, {"ar.itc", 44},
380 {"ar.pfs", 64}, {"ar.lc", 65},
401 /* control registers: */
443 static const struct const_desc
450 /* PSR constant masks: */
453 {"psr.be", ((valueT) 1) << 1},
454 {"psr.up", ((valueT) 1) << 2},
455 {"psr.ac", ((valueT) 1) << 3},
456 {"psr.mfl", ((valueT) 1) << 4},
457 {"psr.mfh", ((valueT) 1) << 5},
459 {"psr.ic", ((valueT) 1) << 13},
460 {"psr.i", ((valueT) 1) << 14},
461 {"psr.pk", ((valueT) 1) << 15},
463 {"psr.dt", ((valueT) 1) << 17},
464 {"psr.dfl", ((valueT) 1) << 18},
465 {"psr.dfh", ((valueT) 1) << 19},
466 {"psr.sp", ((valueT) 1) << 20},
467 {"psr.pp", ((valueT) 1) << 21},
468 {"psr.di", ((valueT) 1) << 22},
469 {"psr.si", ((valueT) 1) << 23},
470 {"psr.db", ((valueT) 1) << 24},
471 {"psr.lp", ((valueT) 1) << 25},
472 {"psr.tb", ((valueT) 1) << 26},
473 {"psr.rt", ((valueT) 1) << 27},
474 /* 28-31: reserved */
475 /* 32-33: cpl (current privilege level) */
476 {"psr.is", ((valueT) 1) << 34},
477 {"psr.mc", ((valueT) 1) << 35},
478 {"psr.it", ((valueT) 1) << 36},
479 {"psr.id", ((valueT) 1) << 37},
480 {"psr.da", ((valueT) 1) << 38},
481 {"psr.dd", ((valueT) 1) << 39},
482 {"psr.ss", ((valueT) 1) << 40},
483 /* 41-42: ri (restart instruction) */
484 {"psr.ed", ((valueT) 1) << 43},
485 {"psr.bn", ((valueT) 1) << 44},
488 /* indirect register-sets/memory: */
497 { "CPUID", IND_CPUID },
498 { "cpuid", IND_CPUID },
510 /* Pseudo functions used to indicate relocation types (these functions
511 start with an at sign (@). */
533 /* reloc pseudo functions (these must come first!): */
534 { "dtpmod", PSEUDO_FUNC_RELOC, { 0 } },
535 { "dtprel", PSEUDO_FUNC_RELOC, { 0 } },
536 { "fptr", PSEUDO_FUNC_RELOC, { 0 } },
537 { "gprel", PSEUDO_FUNC_RELOC, { 0 } },
538 { "ltoff", PSEUDO_FUNC_RELOC, { 0 } },
539 { "ltoffx", PSEUDO_FUNC_RELOC, { 0 } },
540 { "pcrel", PSEUDO_FUNC_RELOC, { 0 } },
541 { "pltoff", PSEUDO_FUNC_RELOC, { 0 } },
542 { "secrel", PSEUDO_FUNC_RELOC, { 0 } },
543 { "segrel", PSEUDO_FUNC_RELOC, { 0 } },
544 { "tprel", PSEUDO_FUNC_RELOC, { 0 } },
545 { "ltv", PSEUDO_FUNC_RELOC, { 0 } },
546 { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_FPTR_RELATIVE */
547 { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_MODULE */
548 { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_RELATIVE */
549 { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_TP_RELATIVE */
550 { "iplt", PSEUDO_FUNC_RELOC, { 0 } },
552 /* mbtype4 constants: */
553 { "alt", PSEUDO_FUNC_CONST, { 0xa } },
554 { "brcst", PSEUDO_FUNC_CONST, { 0x0 } },
555 { "mix", PSEUDO_FUNC_CONST, { 0x8 } },
556 { "rev", PSEUDO_FUNC_CONST, { 0xb } },
557 { "shuf", PSEUDO_FUNC_CONST, { 0x9 } },
559 /* fclass constants: */
560 { "nat", PSEUDO_FUNC_CONST, { 0x100 } },
561 { "qnan", PSEUDO_FUNC_CONST, { 0x080 } },
562 { "snan", PSEUDO_FUNC_CONST, { 0x040 } },
563 { "pos", PSEUDO_FUNC_CONST, { 0x001 } },
564 { "neg", PSEUDO_FUNC_CONST, { 0x002 } },
565 { "zero", PSEUDO_FUNC_CONST, { 0x004 } },
566 { "unorm", PSEUDO_FUNC_CONST, { 0x008 } },
567 { "norm", PSEUDO_FUNC_CONST, { 0x010 } },
568 { "inf", PSEUDO_FUNC_CONST, { 0x020 } },
570 { "natval", PSEUDO_FUNC_CONST, { 0x100 } }, /* old usage */
572 /* hint constants: */
573 { "pause", PSEUDO_FUNC_CONST, { 0x0 } },
575 /* unwind-related constants: */
576 { "svr4", PSEUDO_FUNC_CONST, { ELFOSABI_NONE } },
577 { "hpux", PSEUDO_FUNC_CONST, { ELFOSABI_HPUX } },
578 { "nt", PSEUDO_FUNC_CONST, { 2 } }, /* conflicts w/ELFOSABI_NETBSD */
579 { "linux", PSEUDO_FUNC_CONST, { ELFOSABI_LINUX } },
580 { "freebsd", PSEUDO_FUNC_CONST, { ELFOSABI_FREEBSD } },
581 { "openvms", PSEUDO_FUNC_CONST, { ELFOSABI_OPENVMS } },
582 { "nsk", PSEUDO_FUNC_CONST, { ELFOSABI_NSK } },
584 /* unwind-related registers: */
585 { "priunat",PSEUDO_FUNC_REG, { REG_PRIUNAT } }
588 /* 41-bit nop opcodes (one per unit): */
589 static const bfd_vma nop[IA64_NUM_UNITS] =
591 0x0000000000LL, /* NIL => break 0 */
592 0x0008000000LL, /* I-unit nop */
593 0x0008000000LL, /* M-unit nop */
594 0x4000000000LL, /* B-unit nop */
595 0x0008000000LL, /* F-unit nop */
596 0x0008000000LL, /* L-"unit" nop */
597 0x0008000000LL, /* X-unit nop */
600 /* Can't be `const' as it's passed to input routines (which have the
601 habit of setting temporary sentinels. */
602 static char special_section_name[][20] =
604 {".bss"}, {".sbss"}, {".sdata"}, {".rodata"}, {".comment"},
605 {".IA_64.unwind"}, {".IA_64.unwind_info"},
606 {".init_array"}, {".fini_array"}
609 /* The best template for a particular sequence of up to three
611 #define N IA64_NUM_TYPES
612 static unsigned char best_template[N][N][N];
615 /* Resource dependencies currently in effect */
617 int depind; /* dependency index */
618 const struct ia64_dependency *dependency; /* actual dependency */
619 unsigned specific:1, /* is this a specific bit/regno? */
620 link_to_qp_branch:1; /* will a branch on the same QP clear it?*/
621 int index; /* specific regno/bit within dependency */
622 int note; /* optional qualifying note (0 if none) */
626 int insn_srlz; /* current insn serialization state */
627 int data_srlz; /* current data serialization state */
628 int qp_regno; /* qualifying predicate for this usage */
629 char *file; /* what file marked this dependency */
630 unsigned int line; /* what line marked this dependency */
631 struct mem_offset mem_offset; /* optional memory offset hint */
632 enum { CMP_NONE, CMP_OR, CMP_AND } cmp_type; /* OR or AND compare? */
633 int path; /* corresponding code entry index */
635 static int regdepslen = 0;
636 static int regdepstotlen = 0;
637 static const char *dv_mode[] = { "RAW", "WAW", "WAR" };
638 static const char *dv_sem[] = { "none", "implied", "impliedf",
639 "data", "instr", "specific", "stop", "other" };
640 static const char *dv_cmp_type[] = { "none", "OR", "AND" };
642 /* Current state of PR mutexation */
643 static struct qpmutex {
646 } *qp_mutexes = NULL; /* QP mutex bitmasks */
647 static int qp_mutexeslen = 0;
648 static int qp_mutexestotlen = 0;
649 static valueT qp_safe_across_calls = 0;
651 /* Current state of PR implications */
652 static struct qp_imply {
655 unsigned p2_branched:1;
657 } *qp_implies = NULL;
658 static int qp_implieslen = 0;
659 static int qp_impliestotlen = 0;
661 /* Keep track of static GR values so that indirect register usage can
662 sometimes be tracked. */
673 (((1 << (8 * sizeof(gr_values->path) - 2)) - 1) << 1) + 1,
679 /* Remember the alignment frag. */
680 static fragS *align_frag;
682 /* These are the routines required to output the various types of
685 /* A slot_number is a frag address plus the slot index (0-2). We use the
686 frag address here so that if there is a section switch in the middle of
687 a function, then instructions emitted to a different section are not
688 counted. Since there may be more than one frag for a function, this
689 means we also need to keep track of which frag this address belongs to
690 so we can compute inter-frag distances. This also nicely solves the
691 problem with nops emitted for align directives, which can't easily be
692 counted, but can easily be derived from frag sizes. */
694 typedef struct unw_rec_list {
696 unsigned long slot_number;
698 struct unw_rec_list *next;
701 #define SLOT_NUM_NOT_SET (unsigned)-1
703 /* Linked list of saved prologue counts. A very poor
704 implementation of a map from label numbers to prologue counts. */
705 typedef struct label_prologue_count
707 struct label_prologue_count *next;
708 unsigned long label_number;
709 unsigned int prologue_count;
710 } label_prologue_count;
714 /* Maintain a list of unwind entries for the current function. */
718 /* Any unwind entires that should be attached to the current slot
719 that an insn is being constructed for. */
720 unw_rec_list *current_entry;
722 /* These are used to create the unwind table entry for this function. */
724 symbolS *info; /* pointer to unwind info */
725 symbolS *personality_routine;
727 subsegT saved_text_subseg;
728 unsigned int force_unwind_entry : 1; /* force generation of unwind entry? */
730 /* TRUE if processing unwind directives in a prologue region. */
731 unsigned int prologue : 1;
732 unsigned int prologue_mask : 4;
733 unsigned int body : 1;
734 unsigned int insn : 1;
735 unsigned int prologue_count; /* number of .prologues seen so far */
736 /* Prologue counts at previous .label_state directives. */
737 struct label_prologue_count * saved_prologue_counts;
740 /* The input value is a negated offset from psp, and specifies an address
741 psp - offset. The encoded value is psp + 16 - (4 * offset). Thus we
742 must add 16 and divide by 4 to get the encoded value. */
744 #define ENCODED_PSP_OFFSET(OFFSET) (((OFFSET) + 16) / 4)
746 typedef void (*vbyte_func) PARAMS ((int, char *, char *));
748 /* Forward declarations: */
749 static void set_section PARAMS ((char *name));
750 static unsigned int set_regstack PARAMS ((unsigned int, unsigned int,
751 unsigned int, unsigned int));
752 static void dot_align (int);
753 static void dot_radix PARAMS ((int));
754 static void dot_special_section PARAMS ((int));
755 static void dot_proc PARAMS ((int));
756 static void dot_fframe PARAMS ((int));
757 static void dot_vframe PARAMS ((int));
758 static void dot_vframesp PARAMS ((int));
759 static void dot_vframepsp PARAMS ((int));
760 static void dot_save PARAMS ((int));
761 static void dot_restore PARAMS ((int));
762 static void dot_restorereg PARAMS ((int));
763 static void dot_restorereg_p PARAMS ((int));
764 static void dot_handlerdata PARAMS ((int));
765 static void dot_unwentry PARAMS ((int));
766 static void dot_altrp PARAMS ((int));
767 static void dot_savemem PARAMS ((int));
768 static void dot_saveg PARAMS ((int));
769 static void dot_savef PARAMS ((int));
770 static void dot_saveb PARAMS ((int));
771 static void dot_savegf PARAMS ((int));
772 static void dot_spill PARAMS ((int));
773 static void dot_spillreg PARAMS ((int));
774 static void dot_spillmem PARAMS ((int));
775 static void dot_spillreg_p PARAMS ((int));
776 static void dot_spillmem_p PARAMS ((int));
777 static void dot_label_state PARAMS ((int));
778 static void dot_copy_state PARAMS ((int));
779 static void dot_unwabi PARAMS ((int));
780 static void dot_personality PARAMS ((int));
781 static void dot_body PARAMS ((int));
782 static void dot_prologue PARAMS ((int));
783 static void dot_endp PARAMS ((int));
784 static void dot_template PARAMS ((int));
785 static void dot_regstk PARAMS ((int));
786 static void dot_rot PARAMS ((int));
787 static void dot_byteorder PARAMS ((int));
788 static void dot_psr PARAMS ((int));
789 static void dot_alias PARAMS ((int));
790 static void dot_ln PARAMS ((int));
791 static void cross_section PARAMS ((int ref, void (*cons) PARAMS((int)), int ua));
792 static void dot_xdata PARAMS ((int));
793 static void stmt_float_cons PARAMS ((int));
794 static void stmt_cons_ua PARAMS ((int));
795 static void dot_xfloat_cons PARAMS ((int));
796 static void dot_xstringer PARAMS ((int));
797 static void dot_xdata_ua PARAMS ((int));
798 static void dot_xfloat_cons_ua PARAMS ((int));
799 static void print_prmask PARAMS ((valueT mask));
800 static void dot_pred_rel PARAMS ((int));
801 static void dot_reg_val PARAMS ((int));
802 static void dot_serialize PARAMS ((int));
803 static void dot_dv_mode PARAMS ((int));
804 static void dot_entry PARAMS ((int));
805 static void dot_mem_offset PARAMS ((int));
806 static void add_unwind_entry PARAMS((unw_rec_list *ptr));
807 static symbolS *declare_register PARAMS ((const char *name, int regnum));
808 static void declare_register_set PARAMS ((const char *, int, int));
809 static unsigned int operand_width PARAMS ((enum ia64_opnd));
810 static enum operand_match_result operand_match PARAMS ((const struct ia64_opcode *idesc,
813 static int parse_operand PARAMS ((expressionS *e));
814 static struct ia64_opcode * parse_operands PARAMS ((struct ia64_opcode *));
815 static void build_insn PARAMS ((struct slot *, bfd_vma *));
816 static void emit_one_bundle PARAMS ((void));
817 static void fix_insn PARAMS ((fixS *, const struct ia64_operand *, valueT));
818 static bfd_reloc_code_real_type ia64_gen_real_reloc_type PARAMS ((struct symbol *sym,
819 bfd_reloc_code_real_type r_type));
820 static void insn_group_break PARAMS ((int, int, int));
821 static void mark_resource PARAMS ((struct ia64_opcode *, const struct ia64_dependency *,
822 struct rsrc *, int depind, int path));
823 static void add_qp_mutex PARAMS((valueT mask));
824 static void add_qp_imply PARAMS((int p1, int p2));
825 static void clear_qp_branch_flag PARAMS((valueT mask));
826 static void clear_qp_mutex PARAMS((valueT mask));
827 static void clear_qp_implies PARAMS((valueT p1_mask, valueT p2_mask));
828 static int has_suffix_p PARAMS((const char *, const char *));
829 static void clear_register_values PARAMS ((void));
830 static void print_dependency PARAMS ((const char *action, int depind));
831 static void instruction_serialization PARAMS ((void));
832 static void data_serialization PARAMS ((void));
833 static void remove_marked_resource PARAMS ((struct rsrc *));
834 static int is_conditional_branch PARAMS ((struct ia64_opcode *));
835 static int is_taken_branch PARAMS ((struct ia64_opcode *));
836 static int is_interruption_or_rfi PARAMS ((struct ia64_opcode *));
837 static int depends_on PARAMS ((int, struct ia64_opcode *));
838 static int specify_resource PARAMS ((const struct ia64_dependency *,
839 struct ia64_opcode *, int, struct rsrc [], int, int));
840 static int check_dv PARAMS((struct ia64_opcode *idesc));
841 static void check_dependencies PARAMS((struct ia64_opcode *));
842 static void mark_resources PARAMS((struct ia64_opcode *));
843 static void update_dependencies PARAMS((struct ia64_opcode *));
844 static void note_register_values PARAMS((struct ia64_opcode *));
845 static int qp_mutex PARAMS ((int, int, int));
846 static int resources_match PARAMS ((struct rsrc *, struct ia64_opcode *, int, int, int));
847 static void output_vbyte_mem PARAMS ((int, char *, char *));
848 static void count_output PARAMS ((int, char *, char *));
849 static void output_R1_format PARAMS ((vbyte_func, unw_record_type, int));
850 static void output_R2_format PARAMS ((vbyte_func, int, int, unsigned long));
851 static void output_R3_format PARAMS ((vbyte_func, unw_record_type, unsigned long));
852 static void output_P1_format PARAMS ((vbyte_func, int));
853 static void output_P2_format PARAMS ((vbyte_func, int, int));
854 static void output_P3_format PARAMS ((vbyte_func, unw_record_type, int));
855 static void output_P4_format PARAMS ((vbyte_func, unsigned char *, unsigned long));
856 static void output_P5_format PARAMS ((vbyte_func, int, unsigned long));
857 static void output_P6_format PARAMS ((vbyte_func, unw_record_type, int));
858 static void output_P7_format PARAMS ((vbyte_func, unw_record_type, unsigned long, unsigned long));
859 static void output_P8_format PARAMS ((vbyte_func, unw_record_type, unsigned long));
860 static void output_P9_format PARAMS ((vbyte_func, int, int));
861 static void output_P10_format PARAMS ((vbyte_func, int, int));
862 static void output_B1_format PARAMS ((vbyte_func, unw_record_type, unsigned long));
863 static void output_B2_format PARAMS ((vbyte_func, unsigned long, unsigned long));
864 static void output_B3_format PARAMS ((vbyte_func, unsigned long, unsigned long));
865 static void output_B4_format PARAMS ((vbyte_func, unw_record_type, unsigned long));
866 static char format_ab_reg PARAMS ((int, int));
867 static void output_X1_format PARAMS ((vbyte_func, unw_record_type, int, int, unsigned long,
869 static void output_X2_format PARAMS ((vbyte_func, int, int, int, int, int, unsigned long));
870 static void output_X3_format PARAMS ((vbyte_func, unw_record_type, int, int, int, unsigned long,
872 static void output_X4_format PARAMS ((vbyte_func, int, int, int, int, int, int, unsigned long));
873 static unw_rec_list *output_endp PARAMS ((void));
874 static unw_rec_list *output_prologue PARAMS ((void));
875 static unw_rec_list *output_prologue_gr PARAMS ((unsigned int, unsigned int));
876 static unw_rec_list *output_body PARAMS ((void));
877 static unw_rec_list *output_mem_stack_f PARAMS ((unsigned int));
878 static unw_rec_list *output_mem_stack_v PARAMS ((void));
879 static unw_rec_list *output_psp_gr PARAMS ((unsigned int));
880 static unw_rec_list *output_psp_sprel PARAMS ((unsigned int));
881 static unw_rec_list *output_rp_when PARAMS ((void));
882 static unw_rec_list *output_rp_gr PARAMS ((unsigned int));
883 static unw_rec_list *output_rp_br PARAMS ((unsigned int));
884 static unw_rec_list *output_rp_psprel PARAMS ((unsigned int));
885 static unw_rec_list *output_rp_sprel PARAMS ((unsigned int));
886 static unw_rec_list *output_pfs_when PARAMS ((void));
887 static unw_rec_list *output_pfs_gr PARAMS ((unsigned int));
888 static unw_rec_list *output_pfs_psprel PARAMS ((unsigned int));
889 static unw_rec_list *output_pfs_sprel PARAMS ((unsigned int));
890 static unw_rec_list *output_preds_when PARAMS ((void));
891 static unw_rec_list *output_preds_gr PARAMS ((unsigned int));
892 static unw_rec_list *output_preds_psprel PARAMS ((unsigned int));
893 static unw_rec_list *output_preds_sprel PARAMS ((unsigned int));
894 static unw_rec_list *output_fr_mem PARAMS ((unsigned int));
895 static unw_rec_list *output_frgr_mem PARAMS ((unsigned int, unsigned int));
896 static unw_rec_list *output_gr_gr PARAMS ((unsigned int, unsigned int));
897 static unw_rec_list *output_gr_mem PARAMS ((unsigned int));
898 static unw_rec_list *output_br_mem PARAMS ((unsigned int));
899 static unw_rec_list *output_br_gr PARAMS ((unsigned int, unsigned int));
900 static unw_rec_list *output_spill_base PARAMS ((unsigned int));
901 static unw_rec_list *output_unat_when PARAMS ((void));
902 static unw_rec_list *output_unat_gr PARAMS ((unsigned int));
903 static unw_rec_list *output_unat_psprel PARAMS ((unsigned int));
904 static unw_rec_list *output_unat_sprel PARAMS ((unsigned int));
905 static unw_rec_list *output_lc_when PARAMS ((void));
906 static unw_rec_list *output_lc_gr PARAMS ((unsigned int));
907 static unw_rec_list *output_lc_psprel PARAMS ((unsigned int));
908 static unw_rec_list *output_lc_sprel PARAMS ((unsigned int));
909 static unw_rec_list *output_fpsr_when PARAMS ((void));
910 static unw_rec_list *output_fpsr_gr PARAMS ((unsigned int));
911 static unw_rec_list *output_fpsr_psprel PARAMS ((unsigned int));
912 static unw_rec_list *output_fpsr_sprel PARAMS ((unsigned int));
913 static unw_rec_list *output_priunat_when_gr PARAMS ((void));
914 static unw_rec_list *output_priunat_when_mem PARAMS ((void));
915 static unw_rec_list *output_priunat_gr PARAMS ((unsigned int));
916 static unw_rec_list *output_priunat_psprel PARAMS ((unsigned int));
917 static unw_rec_list *output_priunat_sprel PARAMS ((unsigned int));
918 static unw_rec_list *output_bsp_when PARAMS ((void));
919 static unw_rec_list *output_bsp_gr PARAMS ((unsigned int));
920 static unw_rec_list *output_bsp_psprel PARAMS ((unsigned int));
921 static unw_rec_list *output_bsp_sprel PARAMS ((unsigned int));
922 static unw_rec_list *output_bspstore_when PARAMS ((void));
923 static unw_rec_list *output_bspstore_gr PARAMS ((unsigned int));
924 static unw_rec_list *output_bspstore_psprel PARAMS ((unsigned int));
925 static unw_rec_list *output_bspstore_sprel PARAMS ((unsigned int));
926 static unw_rec_list *output_rnat_when PARAMS ((void));
927 static unw_rec_list *output_rnat_gr PARAMS ((unsigned int));
928 static unw_rec_list *output_rnat_psprel PARAMS ((unsigned int));
929 static unw_rec_list *output_rnat_sprel PARAMS ((unsigned int));
930 static unw_rec_list *output_unwabi PARAMS ((unsigned long, unsigned long));
931 static unw_rec_list *output_epilogue PARAMS ((unsigned long));
932 static unw_rec_list *output_label_state PARAMS ((unsigned long));
933 static unw_rec_list *output_copy_state PARAMS ((unsigned long));
934 static unw_rec_list *output_spill_psprel PARAMS ((unsigned int, unsigned int, unsigned int));
935 static unw_rec_list *output_spill_sprel PARAMS ((unsigned int, unsigned int, unsigned int));
936 static unw_rec_list *output_spill_psprel_p PARAMS ((unsigned int, unsigned int, unsigned int,
938 static unw_rec_list *output_spill_sprel_p PARAMS ((unsigned int, unsigned int, unsigned int,
940 static unw_rec_list *output_spill_reg PARAMS ((unsigned int, unsigned int, unsigned int,
942 static unw_rec_list *output_spill_reg_p PARAMS ((unsigned int, unsigned int, unsigned int,
943 unsigned int, unsigned int));
944 static void process_one_record PARAMS ((unw_rec_list *, vbyte_func));
945 static void process_unw_records PARAMS ((unw_rec_list *, vbyte_func));
946 static int calc_record_size PARAMS ((unw_rec_list *));
947 static void set_imask PARAMS ((unw_rec_list *, unsigned long, unsigned long, unsigned int));
948 static unsigned long slot_index PARAMS ((unsigned long, fragS *,
949 unsigned long, fragS *,
951 static unw_rec_list *optimize_unw_records PARAMS ((unw_rec_list *));
952 static void fixup_unw_records PARAMS ((unw_rec_list *, int));
953 static int convert_expr_to_ab_reg PARAMS ((expressionS *, unsigned int *, unsigned int *));
954 static int convert_expr_to_xy_reg PARAMS ((expressionS *, unsigned int *, unsigned int *));
955 static unsigned int get_saved_prologue_count PARAMS ((unsigned long));
956 static void save_prologue_count PARAMS ((unsigned long, unsigned int));
957 static void free_saved_prologue_counts PARAMS ((void));
959 /* Determine if application register REGNUM resides only in the integer
960 unit (as opposed to the memory unit). */
962 ar_is_only_in_integer_unit (int reg)
965 return reg >= 64 && reg <= 111;
968 /* Determine if application register REGNUM resides only in the memory
969 unit (as opposed to the integer unit). */
971 ar_is_only_in_memory_unit (int reg)
974 return reg >= 0 && reg <= 47;
977 /* Switch to section NAME and create section if necessary. It's
978 rather ugly that we have to manipulate input_line_pointer but I
979 don't see any other way to accomplish the same thing without
980 changing obj-elf.c (which may be the Right Thing, in the end). */
985 char *saved_input_line_pointer;
987 saved_input_line_pointer = input_line_pointer;
988 input_line_pointer = name;
990 input_line_pointer = saved_input_line_pointer;
993 /* Map 's' to SHF_IA_64_SHORT. */
996 ia64_elf_section_letter (letter, ptr_msg)
1001 return SHF_IA_64_SHORT;
1002 else if (letter == 'o')
1003 return SHF_LINK_ORDER;
1005 *ptr_msg = _("Bad .section directive: want a,o,s,w,x,M,S,G,T in string");
1009 /* Map SHF_IA_64_SHORT to SEC_SMALL_DATA. */
1012 ia64_elf_section_flags (flags, attr, type)
1014 int attr, type ATTRIBUTE_UNUSED;
1016 if (attr & SHF_IA_64_SHORT)
1017 flags |= SEC_SMALL_DATA;
1022 ia64_elf_section_type (str, len)
1026 #define STREQ(s) ((len == sizeof (s) - 1) && (strncmp (str, s, sizeof (s) - 1) == 0))
1028 if (STREQ (ELF_STRING_ia64_unwind_info))
1029 return SHT_PROGBITS;
1031 if (STREQ (ELF_STRING_ia64_unwind_info_once))
1032 return SHT_PROGBITS;
1034 if (STREQ (ELF_STRING_ia64_unwind))
1035 return SHT_IA_64_UNWIND;
1037 if (STREQ (ELF_STRING_ia64_unwind_once))
1038 return SHT_IA_64_UNWIND;
1040 if (STREQ ("unwind"))
1041 return SHT_IA_64_UNWIND;
1048 set_regstack (ins, locs, outs, rots)
1049 unsigned int ins, locs, outs, rots;
1051 /* Size of frame. */
1054 sof = ins + locs + outs;
1057 as_bad ("Size of frame exceeds maximum of 96 registers");
1062 as_warn ("Size of rotating registers exceeds frame size");
1065 md.in.base = REG_GR + 32;
1066 md.loc.base = md.in.base + ins;
1067 md.out.base = md.loc.base + locs;
1069 md.in.num_regs = ins;
1070 md.loc.num_regs = locs;
1071 md.out.num_regs = outs;
1072 md.rot.num_regs = rots;
1079 struct label_fix *lfix;
1081 subsegT saved_subseg;
1084 if (!md.last_text_seg)
1087 saved_seg = now_seg;
1088 saved_subseg = now_subseg;
1090 subseg_set (md.last_text_seg, 0);
1092 while (md.num_slots_in_use > 0)
1093 emit_one_bundle (); /* force out queued instructions */
1095 /* In case there are labels following the last instruction, resolve
1097 for (lfix = CURR_SLOT.label_fixups; lfix; lfix = lfix->next)
1099 S_SET_VALUE (lfix->sym, frag_now_fix ());
1100 symbol_set_frag (lfix->sym, frag_now);
1102 CURR_SLOT.label_fixups = 0;
1103 for (lfix = CURR_SLOT.tag_fixups; lfix; lfix = lfix->next)
1105 S_SET_VALUE (lfix->sym, frag_now_fix ());
1106 symbol_set_frag (lfix->sym, frag_now);
1108 CURR_SLOT.tag_fixups = 0;
1110 /* In case there are unwind directives following the last instruction,
1111 resolve those now. We only handle prologue, body, and endp directives
1112 here. Give an error for others. */
1113 for (ptr = unwind.current_entry; ptr; ptr = ptr->next)
1115 switch (ptr->r.type)
1121 ptr->slot_number = (unsigned long) frag_more (0);
1122 ptr->slot_frag = frag_now;
1125 /* Allow any record which doesn't have a "t" field (i.e.,
1126 doesn't relate to a particular instruction). */
1142 as_bad (_("Unwind directive not followed by an instruction."));
1146 unwind.current_entry = NULL;
1148 subseg_set (saved_seg, saved_subseg);
1150 if (md.qp.X_op == O_register)
1151 as_bad ("qualifying predicate not followed by instruction");
1155 ia64_do_align (int nbytes)
1157 char *saved_input_line_pointer = input_line_pointer;
1159 input_line_pointer = "";
1160 s_align_bytes (nbytes);
1161 input_line_pointer = saved_input_line_pointer;
1165 ia64_cons_align (nbytes)
1170 char *saved_input_line_pointer = input_line_pointer;
1171 input_line_pointer = "";
1172 s_align_bytes (nbytes);
1173 input_line_pointer = saved_input_line_pointer;
1177 /* Output COUNT bytes to a memory location. */
1178 static char *vbyte_mem_ptr = NULL;
1181 output_vbyte_mem (count, ptr, comment)
1184 char *comment ATTRIBUTE_UNUSED;
1187 if (vbyte_mem_ptr == NULL)
1192 for (x = 0; x < count; x++)
1193 *(vbyte_mem_ptr++) = ptr[x];
1196 /* Count the number of bytes required for records. */
1197 static int vbyte_count = 0;
1199 count_output (count, ptr, comment)
1201 char *ptr ATTRIBUTE_UNUSED;
1202 char *comment ATTRIBUTE_UNUSED;
1204 vbyte_count += count;
1208 output_R1_format (f, rtype, rlen)
1210 unw_record_type rtype;
1217 output_R3_format (f, rtype, rlen);
1223 else if (rtype != prologue)
1224 as_bad ("record type is not valid");
1226 byte = UNW_R1 | (r << 5) | (rlen & 0x1f);
1227 (*f) (1, &byte, NULL);
1231 output_R2_format (f, mask, grsave, rlen)
1238 mask = (mask & 0x0f);
1239 grsave = (grsave & 0x7f);
1241 bytes[0] = (UNW_R2 | (mask >> 1));
1242 bytes[1] = (((mask & 0x01) << 7) | grsave);
1243 count += output_leb128 (bytes + 2, rlen, 0);
1244 (*f) (count, bytes, NULL);
1248 output_R3_format (f, rtype, rlen)
1250 unw_record_type rtype;
1257 output_R1_format (f, rtype, rlen);
1263 else if (rtype != prologue)
1264 as_bad ("record type is not valid");
1265 bytes[0] = (UNW_R3 | r);
1266 count = output_leb128 (bytes + 1, rlen, 0);
1267 (*f) (count + 1, bytes, NULL);
1271 output_P1_format (f, brmask)
1276 byte = UNW_P1 | (brmask & 0x1f);
1277 (*f) (1, &byte, NULL);
1281 output_P2_format (f, brmask, gr)
1287 brmask = (brmask & 0x1f);
1288 bytes[0] = UNW_P2 | (brmask >> 1);
1289 bytes[1] = (((brmask & 1) << 7) | gr);
1290 (*f) (2, bytes, NULL);
1294 output_P3_format (f, rtype, reg)
1296 unw_record_type rtype;
1341 as_bad ("Invalid record type for P3 format.");
1343 bytes[0] = (UNW_P3 | (r >> 1));
1344 bytes[1] = (((r & 1) << 7) | reg);
1345 (*f) (2, bytes, NULL);
1349 output_P4_format (f, imask, imask_size)
1351 unsigned char *imask;
1352 unsigned long imask_size;
1355 (*f) (imask_size, (char *) imask, NULL);
1359 output_P5_format (f, grmask, frmask)
1362 unsigned long frmask;
1365 grmask = (grmask & 0x0f);
1368 bytes[1] = ((grmask << 4) | ((frmask & 0x000f0000) >> 16));
1369 bytes[2] = ((frmask & 0x0000ff00) >> 8);
1370 bytes[3] = (frmask & 0x000000ff);
1371 (*f) (4, bytes, NULL);
1375 output_P6_format (f, rtype, rmask)
1377 unw_record_type rtype;
1383 if (rtype == gr_mem)
1385 else if (rtype != fr_mem)
1386 as_bad ("Invalid record type for format P6");
1387 byte = (UNW_P6 | (r << 4) | (rmask & 0x0f));
1388 (*f) (1, &byte, NULL);
1392 output_P7_format (f, rtype, w1, w2)
1394 unw_record_type rtype;
1401 count += output_leb128 (bytes + 1, w1, 0);
1406 count += output_leb128 (bytes + count, w2 >> 4, 0);
1456 bytes[0] = (UNW_P7 | r);
1457 (*f) (count, bytes, NULL);
1461 output_P8_format (f, rtype, t)
1463 unw_record_type rtype;
1502 case bspstore_psprel:
1505 case bspstore_sprel:
1517 case priunat_when_gr:
1520 case priunat_psprel:
1526 case priunat_when_mem:
1533 count += output_leb128 (bytes + 2, t, 0);
1534 (*f) (count, bytes, NULL);
1538 output_P9_format (f, grmask, gr)
1545 bytes[1] = (grmask & 0x0f);
1546 bytes[2] = (gr & 0x7f);
1547 (*f) (3, bytes, NULL);
1551 output_P10_format (f, abi, context)
1558 bytes[1] = (abi & 0xff);
1559 bytes[2] = (context & 0xff);
1560 (*f) (3, bytes, NULL);
1564 output_B1_format (f, rtype, label)
1566 unw_record_type rtype;
1567 unsigned long label;
1573 output_B4_format (f, rtype, label);
1576 if (rtype == copy_state)
1578 else if (rtype != label_state)
1579 as_bad ("Invalid record type for format B1");
1581 byte = (UNW_B1 | (r << 5) | (label & 0x1f));
1582 (*f) (1, &byte, NULL);
1586 output_B2_format (f, ecount, t)
1588 unsigned long ecount;
1595 output_B3_format (f, ecount, t);
1598 bytes[0] = (UNW_B2 | (ecount & 0x1f));
1599 count += output_leb128 (bytes + 1, t, 0);
1600 (*f) (count, bytes, NULL);
1604 output_B3_format (f, ecount, t)
1606 unsigned long ecount;
1613 output_B2_format (f, ecount, t);
1617 count += output_leb128 (bytes + 1, t, 0);
1618 count += output_leb128 (bytes + count, ecount, 0);
1619 (*f) (count, bytes, NULL);
1623 output_B4_format (f, rtype, label)
1625 unw_record_type rtype;
1626 unsigned long label;
1633 output_B1_format (f, rtype, label);
1637 if (rtype == copy_state)
1639 else if (rtype != label_state)
1640 as_bad ("Invalid record type for format B1");
1642 bytes[0] = (UNW_B4 | (r << 3));
1643 count += output_leb128 (bytes + 1, label, 0);
1644 (*f) (count, bytes, NULL);
1648 format_ab_reg (ab, reg)
1655 ret = (ab << 5) | reg;
1660 output_X1_format (f, rtype, ab, reg, t, w1)
1662 unw_record_type rtype;
1672 if (rtype == spill_sprel)
1674 else if (rtype != spill_psprel)
1675 as_bad ("Invalid record type for format X1");
1676 bytes[1] = ((r << 7) | format_ab_reg (ab, reg));
1677 count += output_leb128 (bytes + 2, t, 0);
1678 count += output_leb128 (bytes + count, w1, 0);
1679 (*f) (count, bytes, NULL);
1683 output_X2_format (f, ab, reg, x, y, treg, t)
1692 bytes[1] = (((x & 1) << 7) | format_ab_reg (ab, reg));
1693 bytes[2] = (((y & 1) << 7) | (treg & 0x7f));
1694 count += output_leb128 (bytes + 3, t, 0);
1695 (*f) (count, bytes, NULL);
1699 output_X3_format (f, rtype, qp, ab, reg, t, w1)
1701 unw_record_type rtype;
1712 if (rtype == spill_sprel_p)
1714 else if (rtype != spill_psprel_p)
1715 as_bad ("Invalid record type for format X3");
1716 bytes[1] = ((r << 7) | (qp & 0x3f));
1717 bytes[2] = format_ab_reg (ab, reg);
1718 count += output_leb128 (bytes + 3, t, 0);
1719 count += output_leb128 (bytes + count, w1, 0);
1720 (*f) (count, bytes, NULL);
1724 output_X4_format (f, qp, ab, reg, x, y, treg, t)
1734 bytes[1] = (qp & 0x3f);
1735 bytes[2] = (((x & 1) << 7) | format_ab_reg (ab, reg));
1736 bytes[3] = (((y & 1) << 7) | (treg & 0x7f));
1737 count += output_leb128 (bytes + 4, t, 0);
1738 (*f) (count, bytes, NULL);
1741 /* This function allocates a record list structure, and initializes fields. */
1743 static unw_rec_list *
1744 alloc_record (unw_record_type t)
1747 ptr = xmalloc (sizeof (*ptr));
1749 ptr->slot_number = SLOT_NUM_NOT_SET;
1754 /* Dummy unwind record used for calculating the length of the last prologue or
1757 static unw_rec_list *
1760 unw_rec_list *ptr = alloc_record (endp);
1764 static unw_rec_list *
1767 unw_rec_list *ptr = alloc_record (prologue);
1768 memset (&ptr->r.record.r.mask, 0, sizeof (ptr->r.record.r.mask));
1772 static unw_rec_list *
1773 output_prologue_gr (saved_mask, reg)
1774 unsigned int saved_mask;
1777 unw_rec_list *ptr = alloc_record (prologue_gr);
1778 memset (&ptr->r.record.r.mask, 0, sizeof (ptr->r.record.r.mask));
1779 ptr->r.record.r.grmask = saved_mask;
1780 ptr->r.record.r.grsave = reg;
1784 static unw_rec_list *
1787 unw_rec_list *ptr = alloc_record (body);
1791 static unw_rec_list *
1792 output_mem_stack_f (size)
1795 unw_rec_list *ptr = alloc_record (mem_stack_f);
1796 ptr->r.record.p.size = size;
1800 static unw_rec_list *
1801 output_mem_stack_v ()
1803 unw_rec_list *ptr = alloc_record (mem_stack_v);
1807 static unw_rec_list *
1811 unw_rec_list *ptr = alloc_record (psp_gr);
1812 ptr->r.record.p.gr = gr;
1816 static unw_rec_list *
1817 output_psp_sprel (offset)
1818 unsigned int offset;
1820 unw_rec_list *ptr = alloc_record (psp_sprel);
1821 ptr->r.record.p.spoff = offset / 4;
1825 static unw_rec_list *
1828 unw_rec_list *ptr = alloc_record (rp_when);
1832 static unw_rec_list *
1836 unw_rec_list *ptr = alloc_record (rp_gr);
1837 ptr->r.record.p.gr = gr;
1841 static unw_rec_list *
1845 unw_rec_list *ptr = alloc_record (rp_br);
1846 ptr->r.record.p.br = br;
1850 static unw_rec_list *
1851 output_rp_psprel (offset)
1852 unsigned int offset;
1854 unw_rec_list *ptr = alloc_record (rp_psprel);
1855 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
1859 static unw_rec_list *
1860 output_rp_sprel (offset)
1861 unsigned int offset;
1863 unw_rec_list *ptr = alloc_record (rp_sprel);
1864 ptr->r.record.p.spoff = offset / 4;
1868 static unw_rec_list *
1871 unw_rec_list *ptr = alloc_record (pfs_when);
1875 static unw_rec_list *
1879 unw_rec_list *ptr = alloc_record (pfs_gr);
1880 ptr->r.record.p.gr = gr;
1884 static unw_rec_list *
1885 output_pfs_psprel (offset)
1886 unsigned int offset;
1888 unw_rec_list *ptr = alloc_record (pfs_psprel);
1889 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
1893 static unw_rec_list *
1894 output_pfs_sprel (offset)
1895 unsigned int offset;
1897 unw_rec_list *ptr = alloc_record (pfs_sprel);
1898 ptr->r.record.p.spoff = offset / 4;
1902 static unw_rec_list *
1903 output_preds_when ()
1905 unw_rec_list *ptr = alloc_record (preds_when);
1909 static unw_rec_list *
1910 output_preds_gr (gr)
1913 unw_rec_list *ptr = alloc_record (preds_gr);
1914 ptr->r.record.p.gr = gr;
1918 static unw_rec_list *
1919 output_preds_psprel (offset)
1920 unsigned int offset;
1922 unw_rec_list *ptr = alloc_record (preds_psprel);
1923 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
1927 static unw_rec_list *
1928 output_preds_sprel (offset)
1929 unsigned int offset;
1931 unw_rec_list *ptr = alloc_record (preds_sprel);
1932 ptr->r.record.p.spoff = offset / 4;
1936 static unw_rec_list *
1937 output_fr_mem (mask)
1940 unw_rec_list *ptr = alloc_record (fr_mem);
1941 ptr->r.record.p.rmask = mask;
1945 static unw_rec_list *
1946 output_frgr_mem (gr_mask, fr_mask)
1947 unsigned int gr_mask;
1948 unsigned int fr_mask;
1950 unw_rec_list *ptr = alloc_record (frgr_mem);
1951 ptr->r.record.p.grmask = gr_mask;
1952 ptr->r.record.p.frmask = fr_mask;
1956 static unw_rec_list *
1957 output_gr_gr (mask, reg)
1961 unw_rec_list *ptr = alloc_record (gr_gr);
1962 ptr->r.record.p.grmask = mask;
1963 ptr->r.record.p.gr = reg;
1967 static unw_rec_list *
1968 output_gr_mem (mask)
1971 unw_rec_list *ptr = alloc_record (gr_mem);
1972 ptr->r.record.p.rmask = mask;
1976 static unw_rec_list *
1977 output_br_mem (unsigned int mask)
1979 unw_rec_list *ptr = alloc_record (br_mem);
1980 ptr->r.record.p.brmask = mask;
1984 static unw_rec_list *
1985 output_br_gr (save_mask, reg)
1986 unsigned int save_mask;
1989 unw_rec_list *ptr = alloc_record (br_gr);
1990 ptr->r.record.p.brmask = save_mask;
1991 ptr->r.record.p.gr = reg;
1995 static unw_rec_list *
1996 output_spill_base (offset)
1997 unsigned int offset;
1999 unw_rec_list *ptr = alloc_record (spill_base);
2000 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2004 static unw_rec_list *
2007 unw_rec_list *ptr = alloc_record (unat_when);
2011 static unw_rec_list *
2015 unw_rec_list *ptr = alloc_record (unat_gr);
2016 ptr->r.record.p.gr = gr;
2020 static unw_rec_list *
2021 output_unat_psprel (offset)
2022 unsigned int offset;
2024 unw_rec_list *ptr = alloc_record (unat_psprel);
2025 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2029 static unw_rec_list *
2030 output_unat_sprel (offset)
2031 unsigned int offset;
2033 unw_rec_list *ptr = alloc_record (unat_sprel);
2034 ptr->r.record.p.spoff = offset / 4;
2038 static unw_rec_list *
2041 unw_rec_list *ptr = alloc_record (lc_when);
2045 static unw_rec_list *
2049 unw_rec_list *ptr = alloc_record (lc_gr);
2050 ptr->r.record.p.gr = gr;
2054 static unw_rec_list *
2055 output_lc_psprel (offset)
2056 unsigned int offset;
2058 unw_rec_list *ptr = alloc_record (lc_psprel);
2059 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2063 static unw_rec_list *
2064 output_lc_sprel (offset)
2065 unsigned int offset;
2067 unw_rec_list *ptr = alloc_record (lc_sprel);
2068 ptr->r.record.p.spoff = offset / 4;
2072 static unw_rec_list *
2075 unw_rec_list *ptr = alloc_record (fpsr_when);
2079 static unw_rec_list *
2083 unw_rec_list *ptr = alloc_record (fpsr_gr);
2084 ptr->r.record.p.gr = gr;
2088 static unw_rec_list *
2089 output_fpsr_psprel (offset)
2090 unsigned int offset;
2092 unw_rec_list *ptr = alloc_record (fpsr_psprel);
2093 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2097 static unw_rec_list *
2098 output_fpsr_sprel (offset)
2099 unsigned int offset;
2101 unw_rec_list *ptr = alloc_record (fpsr_sprel);
2102 ptr->r.record.p.spoff = offset / 4;
2106 static unw_rec_list *
2107 output_priunat_when_gr ()
2109 unw_rec_list *ptr = alloc_record (priunat_when_gr);
2113 static unw_rec_list *
2114 output_priunat_when_mem ()
2116 unw_rec_list *ptr = alloc_record (priunat_when_mem);
2120 static unw_rec_list *
2121 output_priunat_gr (gr)
2124 unw_rec_list *ptr = alloc_record (priunat_gr);
2125 ptr->r.record.p.gr = gr;
2129 static unw_rec_list *
2130 output_priunat_psprel (offset)
2131 unsigned int offset;
2133 unw_rec_list *ptr = alloc_record (priunat_psprel);
2134 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2138 static unw_rec_list *
2139 output_priunat_sprel (offset)
2140 unsigned int offset;
2142 unw_rec_list *ptr = alloc_record (priunat_sprel);
2143 ptr->r.record.p.spoff = offset / 4;
2147 static unw_rec_list *
2150 unw_rec_list *ptr = alloc_record (bsp_when);
2154 static unw_rec_list *
2158 unw_rec_list *ptr = alloc_record (bsp_gr);
2159 ptr->r.record.p.gr = gr;
2163 static unw_rec_list *
2164 output_bsp_psprel (offset)
2165 unsigned int offset;
2167 unw_rec_list *ptr = alloc_record (bsp_psprel);
2168 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2172 static unw_rec_list *
2173 output_bsp_sprel (offset)
2174 unsigned int offset;
2176 unw_rec_list *ptr = alloc_record (bsp_sprel);
2177 ptr->r.record.p.spoff = offset / 4;
2181 static unw_rec_list *
2182 output_bspstore_when ()
2184 unw_rec_list *ptr = alloc_record (bspstore_when);
2188 static unw_rec_list *
2189 output_bspstore_gr (gr)
2192 unw_rec_list *ptr = alloc_record (bspstore_gr);
2193 ptr->r.record.p.gr = gr;
2197 static unw_rec_list *
2198 output_bspstore_psprel (offset)
2199 unsigned int offset;
2201 unw_rec_list *ptr = alloc_record (bspstore_psprel);
2202 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2206 static unw_rec_list *
2207 output_bspstore_sprel (offset)
2208 unsigned int offset;
2210 unw_rec_list *ptr = alloc_record (bspstore_sprel);
2211 ptr->r.record.p.spoff = offset / 4;
2215 static unw_rec_list *
2218 unw_rec_list *ptr = alloc_record (rnat_when);
2222 static unw_rec_list *
2226 unw_rec_list *ptr = alloc_record (rnat_gr);
2227 ptr->r.record.p.gr = gr;
2231 static unw_rec_list *
2232 output_rnat_psprel (offset)
2233 unsigned int offset;
2235 unw_rec_list *ptr = alloc_record (rnat_psprel);
2236 ptr->r.record.p.pspoff = ENCODED_PSP_OFFSET (offset);
2240 static unw_rec_list *
2241 output_rnat_sprel (offset)
2242 unsigned int offset;
2244 unw_rec_list *ptr = alloc_record (rnat_sprel);
2245 ptr->r.record.p.spoff = offset / 4;
2249 static unw_rec_list *
2250 output_unwabi (abi, context)
2252 unsigned long context;
2254 unw_rec_list *ptr = alloc_record (unwabi);
2255 ptr->r.record.p.abi = abi;
2256 ptr->r.record.p.context = context;
2260 static unw_rec_list *
2261 output_epilogue (unsigned long ecount)
2263 unw_rec_list *ptr = alloc_record (epilogue);
2264 ptr->r.record.b.ecount = ecount;
2268 static unw_rec_list *
2269 output_label_state (unsigned long label)
2271 unw_rec_list *ptr = alloc_record (label_state);
2272 ptr->r.record.b.label = label;
2276 static unw_rec_list *
2277 output_copy_state (unsigned long label)
2279 unw_rec_list *ptr = alloc_record (copy_state);
2280 ptr->r.record.b.label = label;
2284 static unw_rec_list *
2285 output_spill_psprel (ab, reg, offset)
2288 unsigned int offset;
2290 unw_rec_list *ptr = alloc_record (spill_psprel);
2291 ptr->r.record.x.ab = ab;
2292 ptr->r.record.x.reg = reg;
2293 ptr->r.record.x.pspoff = ENCODED_PSP_OFFSET (offset);
2297 static unw_rec_list *
2298 output_spill_sprel (ab, reg, offset)
2301 unsigned int offset;
2303 unw_rec_list *ptr = alloc_record (spill_sprel);
2304 ptr->r.record.x.ab = ab;
2305 ptr->r.record.x.reg = reg;
2306 ptr->r.record.x.spoff = offset / 4;
2310 static unw_rec_list *
2311 output_spill_psprel_p (ab, reg, offset, predicate)
2314 unsigned int offset;
2315 unsigned int predicate;
2317 unw_rec_list *ptr = alloc_record (spill_psprel_p);
2318 ptr->r.record.x.ab = ab;
2319 ptr->r.record.x.reg = reg;
2320 ptr->r.record.x.pspoff = ENCODED_PSP_OFFSET (offset);
2321 ptr->r.record.x.qp = predicate;
2325 static unw_rec_list *
2326 output_spill_sprel_p (ab, reg, offset, predicate)
2329 unsigned int offset;
2330 unsigned int predicate;
2332 unw_rec_list *ptr = alloc_record (spill_sprel_p);
2333 ptr->r.record.x.ab = ab;
2334 ptr->r.record.x.reg = reg;
2335 ptr->r.record.x.spoff = offset / 4;
2336 ptr->r.record.x.qp = predicate;
2340 static unw_rec_list *
2341 output_spill_reg (ab, reg, targ_reg, xy)
2344 unsigned int targ_reg;
2347 unw_rec_list *ptr = alloc_record (spill_reg);
2348 ptr->r.record.x.ab = ab;
2349 ptr->r.record.x.reg = reg;
2350 ptr->r.record.x.treg = targ_reg;
2351 ptr->r.record.x.xy = xy;
2355 static unw_rec_list *
2356 output_spill_reg_p (ab, reg, targ_reg, xy, predicate)
2359 unsigned int targ_reg;
2361 unsigned int predicate;
2363 unw_rec_list *ptr = alloc_record (spill_reg_p);
2364 ptr->r.record.x.ab = ab;
2365 ptr->r.record.x.reg = reg;
2366 ptr->r.record.x.treg = targ_reg;
2367 ptr->r.record.x.xy = xy;
2368 ptr->r.record.x.qp = predicate;
2372 /* Given a unw_rec_list process the correct format with the
2373 specified function. */
2376 process_one_record (ptr, f)
2380 unsigned long fr_mask, gr_mask;
2382 switch (ptr->r.type)
2384 /* This is a dummy record that takes up no space in the output. */
2392 /* These are taken care of by prologue/prologue_gr. */
2397 if (ptr->r.type == prologue_gr)
2398 output_R2_format (f, ptr->r.record.r.grmask,
2399 ptr->r.record.r.grsave, ptr->r.record.r.rlen);
2401 output_R1_format (f, ptr->r.type, ptr->r.record.r.rlen);
2403 /* Output descriptor(s) for union of register spills (if any). */
2404 gr_mask = ptr->r.record.r.mask.gr_mem;
2405 fr_mask = ptr->r.record.r.mask.fr_mem;
2408 if ((fr_mask & ~0xfUL) == 0)
2409 output_P6_format (f, fr_mem, fr_mask);
2412 output_P5_format (f, gr_mask, fr_mask);
2417 output_P6_format (f, gr_mem, gr_mask);
2418 if (ptr->r.record.r.mask.br_mem)
2419 output_P1_format (f, ptr->r.record.r.mask.br_mem);
2421 /* output imask descriptor if necessary: */
2422 if (ptr->r.record.r.mask.i)
2423 output_P4_format (f, ptr->r.record.r.mask.i,
2424 ptr->r.record.r.imask_size);
2428 output_R1_format (f, ptr->r.type, ptr->r.record.r.rlen);
2432 output_P7_format (f, ptr->r.type, ptr->r.record.p.t,
2433 ptr->r.record.p.size);
2446 output_P3_format (f, ptr->r.type, ptr->r.record.p.gr);
2449 output_P3_format (f, rp_br, ptr->r.record.p.br);
2452 output_P7_format (f, psp_sprel, ptr->r.record.p.spoff, 0);
2460 output_P7_format (f, ptr->r.type, ptr->r.record.p.t, 0);
2469 output_P7_format (f, ptr->r.type, ptr->r.record.p.pspoff, 0);
2479 case bspstore_sprel:
2481 output_P8_format (f, ptr->r.type, ptr->r.record.p.spoff);
2484 output_P9_format (f, ptr->r.record.p.grmask, ptr->r.record.p.gr);
2487 output_P2_format (f, ptr->r.record.p.brmask, ptr->r.record.p.gr);
2490 as_bad ("spill_mask record unimplemented.");
2492 case priunat_when_gr:
2493 case priunat_when_mem:
2497 output_P8_format (f, ptr->r.type, ptr->r.record.p.t);
2499 case priunat_psprel:
2501 case bspstore_psprel:
2503 output_P8_format (f, ptr->r.type, ptr->r.record.p.pspoff);
2506 output_P10_format (f, ptr->r.record.p.abi, ptr->r.record.p.context);
2509 output_B3_format (f, ptr->r.record.b.ecount, ptr->r.record.b.t);
2513 output_B4_format (f, ptr->r.type, ptr->r.record.b.label);
2516 output_X1_format (f, ptr->r.type, ptr->r.record.x.ab,
2517 ptr->r.record.x.reg, ptr->r.record.x.t,
2518 ptr->r.record.x.pspoff);
2521 output_X1_format (f, ptr->r.type, ptr->r.record.x.ab,
2522 ptr->r.record.x.reg, ptr->r.record.x.t,
2523 ptr->r.record.x.spoff);
2526 output_X2_format (f, ptr->r.record.x.ab, ptr->r.record.x.reg,
2527 ptr->r.record.x.xy >> 1, ptr->r.record.x.xy,
2528 ptr->r.record.x.treg, ptr->r.record.x.t);
2530 case spill_psprel_p:
2531 output_X3_format (f, ptr->r.type, ptr->r.record.x.qp,
2532 ptr->r.record.x.ab, ptr->r.record.x.reg,
2533 ptr->r.record.x.t, ptr->r.record.x.pspoff);
2536 output_X3_format (f, ptr->r.type, ptr->r.record.x.qp,
2537 ptr->r.record.x.ab, ptr->r.record.x.reg,
2538 ptr->r.record.x.t, ptr->r.record.x.spoff);
2541 output_X4_format (f, ptr->r.record.x.qp, ptr->r.record.x.ab,
2542 ptr->r.record.x.reg, ptr->r.record.x.xy >> 1,
2543 ptr->r.record.x.xy, ptr->r.record.x.treg,
2547 as_bad ("record_type_not_valid");
2552 /* Given a unw_rec_list list, process all the records with
2553 the specified function. */
2555 process_unw_records (list, f)
2560 for (ptr = list; ptr; ptr = ptr->next)
2561 process_one_record (ptr, f);
2564 /* Determine the size of a record list in bytes. */
2566 calc_record_size (list)
2570 process_unw_records (list, count_output);
2574 /* Update IMASK bitmask to reflect the fact that one or more registers
2575 of type TYPE are saved starting at instruction with index T. If N
2576 bits are set in REGMASK, it is assumed that instructions T through
2577 T+N-1 save these registers.
2581 1: instruction saves next fp reg
2582 2: instruction saves next general reg
2583 3: instruction saves next branch reg */
2585 set_imask (region, regmask, t, type)
2586 unw_rec_list *region;
2587 unsigned long regmask;
2591 unsigned char *imask;
2592 unsigned long imask_size;
2596 imask = region->r.record.r.mask.i;
2597 imask_size = region->r.record.r.imask_size;
2600 imask_size = (region->r.record.r.rlen * 2 + 7) / 8 + 1;
2601 imask = xmalloc (imask_size);
2602 memset (imask, 0, imask_size);
2604 region->r.record.r.imask_size = imask_size;
2605 region->r.record.r.mask.i = imask;
2609 pos = 2 * (3 - t % 4);
2612 if (i >= imask_size)
2614 as_bad ("Ignoring attempt to spill beyond end of region");
2618 imask[i] |= (type & 0x3) << pos;
2620 regmask &= (regmask - 1);
2630 /* Return the number of instruction slots from FIRST_ADDR to SLOT_ADDR.
2631 SLOT_FRAG is the frag containing SLOT_ADDR, and FIRST_FRAG is the frag
2632 containing FIRST_ADDR. If BEFORE_RELAX, then we use worst-case estimates
2636 slot_index (slot_addr, slot_frag, first_addr, first_frag, before_relax)
2637 unsigned long slot_addr;
2639 unsigned long first_addr;
2643 unsigned long index = 0;
2645 /* First time we are called, the initial address and frag are invalid. */
2646 if (first_addr == 0)
2649 /* If the two addresses are in different frags, then we need to add in
2650 the remaining size of this frag, and then the entire size of intermediate
2652 while (slot_frag != first_frag)
2654 unsigned long start_addr = (unsigned long) &first_frag->fr_literal;
2658 /* We can get the final addresses only during and after
2660 if (first_frag->fr_next && first_frag->fr_next->fr_address)
2661 index += 3 * ((first_frag->fr_next->fr_address
2662 - first_frag->fr_address
2663 - first_frag->fr_fix) >> 4);
2666 /* We don't know what the final addresses will be. We try our
2667 best to estimate. */
2668 switch (first_frag->fr_type)
2674 as_fatal ("only constant space allocation is supported");
2680 /* Take alignment into account. Assume the worst case
2681 before relaxation. */
2682 index += 3 * ((1 << first_frag->fr_offset) >> 4);
2686 if (first_frag->fr_symbol)
2688 as_fatal ("only constant offsets are supported");
2692 index += 3 * (first_frag->fr_offset >> 4);
2696 /* Add in the full size of the frag converted to instruction slots. */
2697 index += 3 * (first_frag->fr_fix >> 4);
2698 /* Subtract away the initial part before first_addr. */
2699 index -= (3 * ((first_addr >> 4) - (start_addr >> 4))
2700 + ((first_addr & 0x3) - (start_addr & 0x3)));
2702 /* Move to the beginning of the next frag. */
2703 first_frag = first_frag->fr_next;
2704 first_addr = (unsigned long) &first_frag->fr_literal;
2707 /* Add in the used part of the last frag. */
2708 index += (3 * ((slot_addr >> 4) - (first_addr >> 4))
2709 + ((slot_addr & 0x3) - (first_addr & 0x3)));
2713 /* Optimize unwind record directives. */
2715 static unw_rec_list *
2716 optimize_unw_records (list)
2722 /* If the only unwind record is ".prologue" or ".prologue" followed
2723 by ".body", then we can optimize the unwind directives away. */
2724 if (list->r.type == prologue
2725 && (list->next->r.type == endp
2726 || (list->next->r.type == body && list->next->next->r.type == endp)))
2732 /* Given a complete record list, process any records which have
2733 unresolved fields, (ie length counts for a prologue). After
2734 this has been run, all necessary information should be available
2735 within each record to generate an image. */
2738 fixup_unw_records (list, before_relax)
2742 unw_rec_list *ptr, *region = 0;
2743 unsigned long first_addr = 0, rlen = 0, t;
2744 fragS *first_frag = 0;
2746 for (ptr = list; ptr; ptr = ptr->next)
2748 if (ptr->slot_number == SLOT_NUM_NOT_SET)
2749 as_bad (" Insn slot not set in unwind record.");
2750 t = slot_index (ptr->slot_number, ptr->slot_frag,
2751 first_addr, first_frag, before_relax);
2752 switch (ptr->r.type)
2760 unsigned long last_addr = 0;
2761 fragS *last_frag = NULL;
2763 first_addr = ptr->slot_number;
2764 first_frag = ptr->slot_frag;
2765 /* Find either the next body/prologue start, or the end of
2766 the function, and determine the size of the region. */
2767 for (last = ptr->next; last != NULL; last = last->next)
2768 if (last->r.type == prologue || last->r.type == prologue_gr
2769 || last->r.type == body || last->r.type == endp)
2771 last_addr = last->slot_number;
2772 last_frag = last->slot_frag;
2775 size = slot_index (last_addr, last_frag, first_addr, first_frag,
2777 rlen = ptr->r.record.r.rlen = size;
2778 if (ptr->r.type == body)
2779 /* End of region. */
2787 ptr->r.record.b.t = rlen - 1 - t;
2789 /* This happens when a memory-stack-less procedure uses a
2790 ".restore sp" directive at the end of a region to pop
2792 ptr->r.record.b.t = 0;
2803 case priunat_when_gr:
2804 case priunat_when_mem:
2808 ptr->r.record.p.t = t;
2816 case spill_psprel_p:
2817 ptr->r.record.x.t = t;
2823 as_bad ("frgr_mem record before region record!");
2826 region->r.record.r.mask.fr_mem |= ptr->r.record.p.frmask;
2827 region->r.record.r.mask.gr_mem |= ptr->r.record.p.grmask;
2828 set_imask (region, ptr->r.record.p.frmask, t, 1);
2829 set_imask (region, ptr->r.record.p.grmask, t, 2);
2834 as_bad ("fr_mem record before region record!");
2837 region->r.record.r.mask.fr_mem |= ptr->r.record.p.rmask;
2838 set_imask (region, ptr->r.record.p.rmask, t, 1);
2843 as_bad ("gr_mem record before region record!");
2846 region->r.record.r.mask.gr_mem |= ptr->r.record.p.rmask;
2847 set_imask (region, ptr->r.record.p.rmask, t, 2);
2852 as_bad ("br_mem record before region record!");
2855 region->r.record.r.mask.br_mem |= ptr->r.record.p.brmask;
2856 set_imask (region, ptr->r.record.p.brmask, t, 3);
2862 as_bad ("gr_gr record before region record!");
2865 set_imask (region, ptr->r.record.p.grmask, t, 2);
2870 as_bad ("br_gr record before region record!");
2873 set_imask (region, ptr->r.record.p.brmask, t, 3);
2882 /* Estimate the size of a frag before relaxing. We only have one type of frag
2883 to handle here, which is the unwind info frag. */
2886 ia64_estimate_size_before_relax (fragS *frag,
2887 asection *segtype ATTRIBUTE_UNUSED)
2892 /* ??? This code is identical to the first part of ia64_convert_frag. */
2893 list = (unw_rec_list *) frag->fr_opcode;
2894 fixup_unw_records (list, 0);
2896 len = calc_record_size (list);
2897 /* pad to pointer-size boundary. */
2898 pad = len % md.pointer_size;
2900 len += md.pointer_size - pad;
2901 /* Add 8 for the header. */
2903 /* Add a pointer for the personality offset. */
2904 if (frag->fr_offset)
2905 size += md.pointer_size;
2907 /* fr_var carries the max_chars that we created the fragment with.
2908 We must, of course, have allocated enough memory earlier. */
2909 assert (frag->fr_var >= size);
2911 return frag->fr_fix + size;
2914 /* This function converts a rs_machine_dependent variant frag into a
2915 normal fill frag with the unwind image from the the record list. */
2917 ia64_convert_frag (fragS *frag)
2923 /* ??? This code is identical to ia64_estimate_size_before_relax. */
2924 list = (unw_rec_list *) frag->fr_opcode;
2925 fixup_unw_records (list, 0);
2927 len = calc_record_size (list);
2928 /* pad to pointer-size boundary. */
2929 pad = len % md.pointer_size;
2931 len += md.pointer_size - pad;
2932 /* Add 8 for the header. */
2934 /* Add a pointer for the personality offset. */
2935 if (frag->fr_offset)
2936 size += md.pointer_size;
2938 /* fr_var carries the max_chars that we created the fragment with.
2939 We must, of course, have allocated enough memory earlier. */
2940 assert (frag->fr_var >= size);
2942 /* Initialize the header area. fr_offset is initialized with
2943 unwind.personality_routine. */
2944 if (frag->fr_offset)
2946 if (md.flags & EF_IA_64_ABI64)
2947 flag_value = (bfd_vma) 3 << 32;
2949 /* 32-bit unwind info block. */
2950 flag_value = (bfd_vma) 0x1003 << 32;
2955 md_number_to_chars (frag->fr_literal,
2956 (((bfd_vma) 1 << 48) /* Version. */
2957 | flag_value /* U & E handler flags. */
2958 | (len / md.pointer_size)), /* Length. */
2961 /* Skip the header. */
2962 vbyte_mem_ptr = frag->fr_literal + 8;
2963 process_unw_records (list, output_vbyte_mem);
2965 /* Fill the padding bytes with zeros. */
2967 md_number_to_chars (frag->fr_literal + len + 8 - md.pointer_size + pad, 0,
2968 md.pointer_size - pad);
2970 frag->fr_fix += size;
2971 frag->fr_type = rs_fill;
2973 frag->fr_offset = 0;
2977 convert_expr_to_ab_reg (e, ab, regp)
2984 if (e->X_op != O_register)
2987 reg = e->X_add_number;
2988 if (reg >= (REG_GR + 4) && reg <= (REG_GR + 7))
2991 *regp = reg - REG_GR;
2993 else if ((reg >= (REG_FR + 2) && reg <= (REG_FR + 5))
2994 || (reg >= (REG_FR + 16) && reg <= (REG_FR + 31)))
2997 *regp = reg - REG_FR;
2999 else if (reg >= (REG_BR + 1) && reg <= (REG_BR + 5))
3002 *regp = reg - REG_BR;
3009 case REG_PR: *regp = 0; break;
3010 case REG_PSP: *regp = 1; break;
3011 case REG_PRIUNAT: *regp = 2; break;
3012 case REG_BR + 0: *regp = 3; break;
3013 case REG_AR + AR_BSP: *regp = 4; break;
3014 case REG_AR + AR_BSPSTORE: *regp = 5; break;
3015 case REG_AR + AR_RNAT: *regp = 6; break;
3016 case REG_AR + AR_UNAT: *regp = 7; break;
3017 case REG_AR + AR_FPSR: *regp = 8; break;
3018 case REG_AR + AR_PFS: *regp = 9; break;
3019 case REG_AR + AR_LC: *regp = 10; break;
3029 convert_expr_to_xy_reg (e, xy, regp)
3036 if (e->X_op != O_register)
3039 reg = e->X_add_number;
3041 if (/* reg >= REG_GR && */ reg <= (REG_GR + 127))
3044 *regp = reg - REG_GR;
3046 else if (reg >= REG_FR && reg <= (REG_FR + 127))
3049 *regp = reg - REG_FR;
3051 else if (reg >= REG_BR && reg <= (REG_BR + 7))
3054 *regp = reg - REG_BR;
3064 /* The current frag is an alignment frag. */
3065 align_frag = frag_now;
3066 s_align_bytes (arg);
3071 int dummy ATTRIBUTE_UNUSED;
3078 if (is_it_end_of_statement ())
3080 radix = input_line_pointer;
3081 ch = get_symbol_end ();
3082 ia64_canonicalize_symbol_name (radix);
3083 if (strcasecmp (radix, "C"))
3084 as_bad ("Radix `%s' unsupported or invalid", radix);
3085 *input_line_pointer = ch;
3086 demand_empty_rest_of_line ();
3089 /* Helper function for .loc directives. If the assembler is not generating
3090 line number info, then we need to remember which instructions have a .loc
3091 directive, and only call dwarf2_gen_line_info for those instructions. */
3096 CURR_SLOT.loc_directive_seen = 1;
3097 dwarf2_directive_loc (x);
3100 /* .sbss, .bss etc. are macros that expand into ".section SECNAME". */
3102 dot_special_section (which)
3105 set_section ((char *) special_section_name[which]);
3108 /* Return -1 for warning and 0 for error. */
3111 unwind_diagnostic (const char * region, const char *directive)
3113 if (md.unwind_check == unwind_check_warning)
3115 as_warn (".%s outside of %s", directive, region);
3120 as_bad (".%s outside of %s", directive, region);
3121 ignore_rest_of_line ();
3126 /* Return 1 if a directive is in a procedure, -1 if a directive isn't in
3127 a procedure but the unwind directive check is set to warning, 0 if
3128 a directive isn't in a procedure and the unwind directive check is set
3132 in_procedure (const char *directive)
3134 if (unwind.proc_start
3135 && (!unwind.saved_text_seg || strcmp (directive, "endp") == 0))
3137 return unwind_diagnostic ("procedure", directive);
3140 /* Return 1 if a directive is in a prologue, -1 if a directive isn't in
3141 a prologue but the unwind directive check is set to warning, 0 if
3142 a directive isn't in a prologue and the unwind directive check is set
3146 in_prologue (const char *directive)
3148 int in = in_procedure (directive);
3151 /* We are in a procedure. Check if we are in a prologue. */
3152 if (unwind.prologue)
3154 /* We only want to issue one message. */
3156 return unwind_diagnostic ("prologue", directive);
3163 /* Return 1 if a directive is in a body, -1 if a directive isn't in
3164 a body but the unwind directive check is set to warning, 0 if
3165 a directive isn't in a body and the unwind directive check is set
3169 in_body (const char *directive)
3171 int in = in_procedure (directive);
3174 /* We are in a procedure. Check if we are in a body. */
3177 /* We only want to issue one message. */
3179 return unwind_diagnostic ("body region", directive);
3187 add_unwind_entry (ptr)
3191 unwind.tail->next = ptr;
3196 /* The current entry can in fact be a chain of unwind entries. */
3197 if (unwind.current_entry == NULL)
3198 unwind.current_entry = ptr;
3203 int dummy ATTRIBUTE_UNUSED;
3207 if (!in_prologue ("fframe"))
3212 if (e.X_op != O_constant)
3213 as_bad ("Operand to .fframe must be a constant");
3215 add_unwind_entry (output_mem_stack_f (e.X_add_number));
3220 int dummy ATTRIBUTE_UNUSED;
3225 if (!in_prologue ("vframe"))
3229 reg = e.X_add_number - REG_GR;
3230 if (e.X_op == O_register && reg < 128)
3232 add_unwind_entry (output_mem_stack_v ());
3233 if (! (unwind.prologue_mask & 2))
3234 add_unwind_entry (output_psp_gr (reg));
3237 as_bad ("First operand to .vframe must be a general register");
3241 dot_vframesp (dummy)
3242 int dummy ATTRIBUTE_UNUSED;
3246 if (!in_prologue ("vframesp"))
3250 if (e.X_op == O_constant)
3252 add_unwind_entry (output_mem_stack_v ());
3253 add_unwind_entry (output_psp_sprel (e.X_add_number));
3256 as_bad ("Operand to .vframesp must be a constant (sp-relative offset)");
3260 dot_vframepsp (dummy)
3261 int dummy ATTRIBUTE_UNUSED;
3265 if (!in_prologue ("vframepsp"))
3269 if (e.X_op == O_constant)
3271 add_unwind_entry (output_mem_stack_v ());
3272 add_unwind_entry (output_psp_sprel (e.X_add_number));
3275 as_bad ("Operand to .vframepsp must be a constant (psp-relative offset)");
3280 int dummy ATTRIBUTE_UNUSED;
3286 if (!in_prologue ("save"))
3289 sep = parse_operand (&e1);
3291 as_bad ("No second operand to .save");
3292 sep = parse_operand (&e2);
3294 reg1 = e1.X_add_number;
3295 reg2 = e2.X_add_number - REG_GR;
3297 /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */
3298 if (e1.X_op == O_register)
3300 if (e2.X_op == O_register && reg2 >= 0 && reg2 < 128)
3304 case REG_AR + AR_BSP:
3305 add_unwind_entry (output_bsp_when ());
3306 add_unwind_entry (output_bsp_gr (reg2));
3308 case REG_AR + AR_BSPSTORE:
3309 add_unwind_entry (output_bspstore_when ());
3310 add_unwind_entry (output_bspstore_gr (reg2));
3312 case REG_AR + AR_RNAT:
3313 add_unwind_entry (output_rnat_when ());
3314 add_unwind_entry (output_rnat_gr (reg2));
3316 case REG_AR + AR_UNAT:
3317 add_unwind_entry (output_unat_when ());
3318 add_unwind_entry (output_unat_gr (reg2));
3320 case REG_AR + AR_FPSR:
3321 add_unwind_entry (output_fpsr_when ());
3322 add_unwind_entry (output_fpsr_gr (reg2));
3324 case REG_AR + AR_PFS:
3325 add_unwind_entry (output_pfs_when ());
3326 if (! (unwind.prologue_mask & 4))
3327 add_unwind_entry (output_pfs_gr (reg2));
3329 case REG_AR + AR_LC:
3330 add_unwind_entry (output_lc_when ());
3331 add_unwind_entry (output_lc_gr (reg2));
3334 add_unwind_entry (output_rp_when ());
3335 if (! (unwind.prologue_mask & 8))
3336 add_unwind_entry (output_rp_gr (reg2));
3339 add_unwind_entry (output_preds_when ());
3340 if (! (unwind.prologue_mask & 1))
3341 add_unwind_entry (output_preds_gr (reg2));
3344 add_unwind_entry (output_priunat_when_gr ());
3345 add_unwind_entry (output_priunat_gr (reg2));
3348 as_bad ("First operand not a valid register");
3352 as_bad (" Second operand not a valid register");
3355 as_bad ("First operand not a register");
3360 int dummy ATTRIBUTE_UNUSED;
3363 unsigned long ecount; /* # of _additional_ regions to pop */
3366 if (!in_body ("restore"))
3369 sep = parse_operand (&e1);
3370 if (e1.X_op != O_register || e1.X_add_number != REG_GR + 12)
3372 as_bad ("First operand to .restore must be stack pointer (sp)");
3378 parse_operand (&e2);
3379 if (e2.X_op != O_constant || e2.X_add_number < 0)
3381 as_bad ("Second operand to .restore must be a constant >= 0");
3384 ecount = e2.X_add_number;
3387 ecount = unwind.prologue_count - 1;
3389 if (ecount >= unwind.prologue_count)
3391 as_bad ("Epilogue count of %lu exceeds number of nested prologues (%u)",
3392 ecount + 1, unwind.prologue_count);
3396 add_unwind_entry (output_epilogue (ecount));
3398 if (ecount < unwind.prologue_count)
3399 unwind.prologue_count -= ecount + 1;
3401 unwind.prologue_count = 0;
3405 dot_restorereg (dummy)
3406 int dummy ATTRIBUTE_UNUSED;
3408 unsigned int ab, reg;
3411 if (!in_procedure ("restorereg"))
3416 if (!convert_expr_to_ab_reg (&e, &ab, ®))
3418 as_bad ("First operand to .restorereg must be a preserved register");
3421 add_unwind_entry (output_spill_reg (ab, reg, 0, 0));
3425 dot_restorereg_p (dummy)
3426 int dummy ATTRIBUTE_UNUSED;
3428 unsigned int qp, ab, reg;
3432 if (!in_procedure ("restorereg.p"))
3435 sep = parse_operand (&e1);
3438 as_bad ("No second operand to .restorereg.p");
3442 parse_operand (&e2);
3444 qp = e1.X_add_number - REG_P;
3445 if (e1.X_op != O_register || qp > 63)
3447 as_bad ("First operand to .restorereg.p must be a predicate");
3451 if (!convert_expr_to_ab_reg (&e2, &ab, ®))
3453 as_bad ("Second operand to .restorereg.p must be a preserved register");
3456 add_unwind_entry (output_spill_reg_p (ab, reg, 0, 0, qp));
3459 static char *special_linkonce_name[] =
3461 ".gnu.linkonce.ia64unw.", ".gnu.linkonce.ia64unwi."
3465 start_unwind_section (const segT text_seg, int sec_index)
3468 Use a slightly ugly scheme to derive the unwind section names from
3469 the text section name:
3471 text sect. unwind table sect.
3472 name: name: comments:
3473 ---------- ----------------- --------------------------------
3475 .text.foo .IA_64.unwind.text.foo
3476 .foo .IA_64.unwind.foo
3478 .gnu.linkonce.ia64unw.foo
3479 _info .IA_64.unwind_info gas issues error message (ditto)
3480 _infoFOO .IA_64.unwind_infoFOO gas issues error message (ditto)
3482 This mapping is done so that:
3484 (a) An object file with unwind info only in .text will use
3485 unwind section names .IA_64.unwind and .IA_64.unwind_info.
3486 This follows the letter of the ABI and also ensures backwards
3487 compatibility with older toolchains.
3489 (b) An object file with unwind info in multiple text sections
3490 will use separate unwind sections for each text section.
3491 This allows us to properly set the "sh_info" and "sh_link"
3492 fields in SHT_IA_64_UNWIND as required by the ABI and also
3493 lets GNU ld support programs with multiple segments
3494 containing unwind info (as might be the case for certain
3495 embedded applications).
3497 (c) An error is issued if there would be a name clash.
3500 const char *text_name, *sec_text_name;
3502 const char *prefix = special_section_name [sec_index];
3504 size_t prefix_len, suffix_len, sec_name_len;
3506 sec_text_name = segment_name (text_seg);
3507 text_name = sec_text_name;
3508 if (strncmp (text_name, "_info", 5) == 0)
3510 as_bad ("Illegal section name `%s' (causes unwind section name clash)",
3512 ignore_rest_of_line ();
3515 if (strcmp (text_name, ".text") == 0)
3518 /* Build the unwind section name by appending the (possibly stripped)
3519 text section name to the unwind prefix. */
3521 if (strncmp (text_name, ".gnu.linkonce.t.",
3522 sizeof (".gnu.linkonce.t.") - 1) == 0)
3524 prefix = special_linkonce_name [sec_index - SPECIAL_SECTION_UNWIND];
3525 suffix += sizeof (".gnu.linkonce.t.") - 1;
3528 prefix_len = strlen (prefix);
3529 suffix_len = strlen (suffix);
3530 sec_name_len = prefix_len + suffix_len;
3531 sec_name = alloca (sec_name_len + 1);
3532 memcpy (sec_name, prefix, prefix_len);
3533 memcpy (sec_name + prefix_len, suffix, suffix_len);
3534 sec_name [sec_name_len] = '\0';
3536 /* Handle COMDAT group. */
3537 if ((text_seg->flags & SEC_LINK_ONCE) != 0
3538 && (elf_section_flags (text_seg) & SHF_GROUP) != 0)
3541 size_t len, group_name_len;
3542 const char *group_name = elf_group_name (text_seg);
3544 if (group_name == NULL)
3546 as_bad ("Group section `%s' has no group signature",
3548 ignore_rest_of_line ();
3551 /* We have to construct a fake section directive. */
3552 group_name_len = strlen (group_name);
3554 + 16 /* ,"aG",@progbits, */
3555 + group_name_len /* ,group_name */
3558 section = alloca (len + 1);
3559 memcpy (section, sec_name, sec_name_len);
3560 memcpy (section + sec_name_len, ",\"aG\",@progbits,", 16);
3561 memcpy (section + sec_name_len + 16, group_name, group_name_len);
3562 memcpy (section + len - 7, ",comdat", 7);
3563 section [len] = '\0';
3564 set_section (section);
3568 set_section (sec_name);
3569 bfd_set_section_flags (stdoutput, now_seg,
3570 SEC_LOAD | SEC_ALLOC | SEC_READONLY);
3573 elf_linked_to_section (now_seg) = text_seg;
3577 generate_unwind_image (const segT text_seg)
3582 /* Mark the end of the unwind info, so that we can compute the size of the
3583 last unwind region. */
3584 add_unwind_entry (output_endp ());
3586 /* Force out pending instructions, to make sure all unwind records have
3587 a valid slot_number field. */
3588 ia64_flush_insns ();
3590 /* Generate the unwind record. */
3591 list = optimize_unw_records (unwind.list);
3592 fixup_unw_records (list, 1);
3593 size = calc_record_size (list);
3595 if (size > 0 || unwind.force_unwind_entry)
3597 unwind.force_unwind_entry = 0;
3598 /* pad to pointer-size boundary. */
3599 pad = size % md.pointer_size;
3601 size += md.pointer_size - pad;
3602 /* Add 8 for the header. */
3604 /* Add a pointer for the personality offset. */
3605 if (unwind.personality_routine)
3606 size += md.pointer_size;
3609 /* If there are unwind records, switch sections, and output the info. */
3613 bfd_reloc_code_real_type reloc;
3615 start_unwind_section (text_seg, SPECIAL_SECTION_UNWIND_INFO);
3617 /* Make sure the section has 4 byte alignment for ILP32 and
3618 8 byte alignment for LP64. */
3619 frag_align (md.pointer_size_shift, 0, 0);
3620 record_alignment (now_seg, md.pointer_size_shift);
3622 /* Set expression which points to start of unwind descriptor area. */
3623 unwind.info = expr_build_dot ();
3625 frag_var (rs_machine_dependent, size, size, 0, 0,
3626 (offsetT) (long) unwind.personality_routine,
3629 /* Add the personality address to the image. */
3630 if (unwind.personality_routine != 0)
3632 exp.X_op = O_symbol;
3633 exp.X_add_symbol = unwind.personality_routine;
3634 exp.X_add_number = 0;
3636 if (md.flags & EF_IA_64_BE)
3638 if (md.flags & EF_IA_64_ABI64)
3639 reloc = BFD_RELOC_IA64_LTOFF_FPTR64MSB;
3641 reloc = BFD_RELOC_IA64_LTOFF_FPTR32MSB;
3645 if (md.flags & EF_IA_64_ABI64)
3646 reloc = BFD_RELOC_IA64_LTOFF_FPTR64LSB;
3648 reloc = BFD_RELOC_IA64_LTOFF_FPTR32LSB;
3651 fix_new_exp (frag_now, frag_now_fix () - md.pointer_size,
3652 md.pointer_size, &exp, 0, reloc);
3653 unwind.personality_routine = 0;
3657 free_saved_prologue_counts ();
3658 unwind.list = unwind.tail = unwind.current_entry = NULL;
3662 dot_handlerdata (dummy)
3663 int dummy ATTRIBUTE_UNUSED;
3665 if (!in_procedure ("handlerdata"))
3667 unwind.force_unwind_entry = 1;
3669 /* Remember which segment we're in so we can switch back after .endp */
3670 unwind.saved_text_seg = now_seg;
3671 unwind.saved_text_subseg = now_subseg;
3673 /* Generate unwind info into unwind-info section and then leave that
3674 section as the currently active one so dataXX directives go into
3675 the language specific data area of the unwind info block. */
3676 generate_unwind_image (now_seg);
3677 demand_empty_rest_of_line ();
3681 dot_unwentry (dummy)
3682 int dummy ATTRIBUTE_UNUSED;
3684 if (!in_procedure ("unwentry"))
3686 unwind.force_unwind_entry = 1;
3687 demand_empty_rest_of_line ();
3692 int dummy ATTRIBUTE_UNUSED;
3697 if (!in_prologue ("altrp"))
3701 reg = e.X_add_number - REG_BR;
3702 if (e.X_op == O_register && reg < 8)
3703 add_unwind_entry (output_rp_br (reg));
3705 as_bad ("First operand not a valid branch register");
3709 dot_savemem (psprel)
3716 if (!in_prologue (psprel ? "savepsp" : "savesp"))
3719 sep = parse_operand (&e1);
3721 as_bad ("No second operand to .save%ssp", psprel ? "p" : "");
3722 sep = parse_operand (&e2);
3724 reg1 = e1.X_add_number;
3725 val = e2.X_add_number;
3727 /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */
3728 if (e1.X_op == O_register)
3730 if (e2.X_op == O_constant)
3734 case REG_AR + AR_BSP:
3735 add_unwind_entry (output_bsp_when ());
3736 add_unwind_entry ((psprel
3738 : output_bsp_sprel) (val));
3740 case REG_AR + AR_BSPSTORE:
3741 add_unwind_entry (output_bspstore_when ());
3742 add_unwind_entry ((psprel
3743 ? output_bspstore_psprel
3744 : output_bspstore_sprel) (val));
3746 case REG_AR + AR_RNAT:
3747 add_unwind_entry (output_rnat_when ());
3748 add_unwind_entry ((psprel
3749 ? output_rnat_psprel
3750 : output_rnat_sprel) (val));
3752 case REG_AR + AR_UNAT:
3753 add_unwind_entry (output_unat_when ());
3754 add_unwind_entry ((psprel
3755 ? output_unat_psprel
3756 : output_unat_sprel) (val));
3758 case REG_AR + AR_FPSR:
3759 add_unwind_entry (output_fpsr_when ());
3760 add_unwind_entry ((psprel
3761 ? output_fpsr_psprel
3762 : output_fpsr_sprel) (val));
3764 case REG_AR + AR_PFS:
3765 add_unwind_entry (output_pfs_when ());
3766 add_unwind_entry ((psprel
3768 : output_pfs_sprel) (val));
3770 case REG_AR + AR_LC:
3771 add_unwind_entry (output_lc_when ());
3772 add_unwind_entry ((psprel
3774 : output_lc_sprel) (val));
3777 add_unwind_entry (output_rp_when ());
3778 add_unwind_entry ((psprel
3780 : output_rp_sprel) (val));
3783 add_unwind_entry (output_preds_when ());
3784 add_unwind_entry ((psprel
3785 ? output_preds_psprel
3786 : output_preds_sprel) (val));
3789 add_unwind_entry (output_priunat_when_mem ());
3790 add_unwind_entry ((psprel
3791 ? output_priunat_psprel
3792 : output_priunat_sprel) (val));
3795 as_bad ("First operand not a valid register");
3799 as_bad (" Second operand not a valid constant");
3802 as_bad ("First operand not a register");
3807 int dummy ATTRIBUTE_UNUSED;
3812 if (!in_prologue ("save.g"))
3815 sep = parse_operand (&e1);
3817 parse_operand (&e2);
3819 if (e1.X_op != O_constant)
3820 as_bad ("First operand to .save.g must be a constant.");
3823 int grmask = e1.X_add_number;
3825 add_unwind_entry (output_gr_mem (grmask));
3828 int reg = e2.X_add_number - REG_GR;
3829 if (e2.X_op == O_register && reg >= 0 && reg < 128)
3830 add_unwind_entry (output_gr_gr (grmask, reg));
3832 as_bad ("Second operand is an invalid register.");
3839 int dummy ATTRIBUTE_UNUSED;
3844 if (!in_prologue ("save.f"))
3847 sep = parse_operand (&e1);
3849 if (e1.X_op != O_constant)
3850 as_bad ("Operand to .save.f must be a constant.");
3852 add_unwind_entry (output_fr_mem (e1.X_add_number));
3857 int dummy ATTRIBUTE_UNUSED;
3864 if (!in_prologue ("save.b"))
3867 sep = parse_operand (&e1);
3868 if (e1.X_op != O_constant)
3870 as_bad ("First operand to .save.b must be a constant.");
3873 brmask = e1.X_add_number;
3877 sep = parse_operand (&e2);
3878 reg = e2.X_add_number - REG_GR;
3879 if (e2.X_op != O_register || reg > 127)
3881 as_bad ("Second operand to .save.b must be a general register.");
3884 add_unwind_entry (output_br_gr (brmask, e2.X_add_number));
3887 add_unwind_entry (output_br_mem (brmask));
3889 if (!is_end_of_line[sep] && !is_it_end_of_statement ())
3890 demand_empty_rest_of_line ();
3895 int dummy ATTRIBUTE_UNUSED;
3900 if (!in_prologue ("save.gf"))
3903 sep = parse_operand (&e1);
3905 parse_operand (&e2);
3907 if (e1.X_op != O_constant || sep != ',' || e2.X_op != O_constant)
3908 as_bad ("Both operands of .save.gf must be constants.");
3911 int grmask = e1.X_add_number;
3912 int frmask = e2.X_add_number;
3913 add_unwind_entry (output_frgr_mem (grmask, frmask));
3919 int dummy ATTRIBUTE_UNUSED;
3924 if (!in_prologue ("spill"))
3927 sep = parse_operand (&e);
3928 if (!is_end_of_line[sep] && !is_it_end_of_statement ())
3929 demand_empty_rest_of_line ();
3931 if (e.X_op != O_constant)
3932 as_bad ("Operand to .spill must be a constant");
3934 add_unwind_entry (output_spill_base (e.X_add_number));
3938 dot_spillreg (dummy)
3939 int dummy ATTRIBUTE_UNUSED;
3942 unsigned int ab, xy, reg, treg;
3945 if (!in_procedure ("spillreg"))
3948 sep = parse_operand (&e1);
3951 as_bad ("No second operand to .spillreg");
3955 parse_operand (&e2);
3957 if (!convert_expr_to_ab_reg (&e1, &ab, ®))
3959 as_bad ("First operand to .spillreg must be a preserved register");
3963 if (!convert_expr_to_xy_reg (&e2, &xy, &treg))
3965 as_bad ("Second operand to .spillreg must be a register");
3969 add_unwind_entry (output_spill_reg (ab, reg, treg, xy));
3973 dot_spillmem (psprel)
3978 unsigned int ab, reg;
3980 if (!in_procedure ("spillmem"))
3983 sep = parse_operand (&e1);
3986 as_bad ("Second operand missing");
3990 parse_operand (&e2);
3992 if (!convert_expr_to_ab_reg (&e1, &ab, ®))
3994 as_bad ("First operand to .spill%s must be a preserved register",
3995 psprel ? "psp" : "sp");
3999 if (e2.X_op != O_constant)
4001 as_bad ("Second operand to .spill%s must be a constant",
4002 psprel ? "psp" : "sp");
4007 add_unwind_entry (output_spill_psprel (ab, reg, e2.X_add_number));
4009 add_unwind_entry (output_spill_sprel (ab, reg, e2.X_add_number));
4013 dot_spillreg_p (dummy)
4014 int dummy ATTRIBUTE_UNUSED;
4017 unsigned int ab, xy, reg, treg;
4018 expressionS e1, e2, e3;
4021 if (!in_procedure ("spillreg.p"))
4024 sep = parse_operand (&e1);
4027 as_bad ("No second and third operand to .spillreg.p");
4031 sep = parse_operand (&e2);
4034 as_bad ("No third operand to .spillreg.p");
4038 parse_operand (&e3);
4040 qp = e1.X_add_number - REG_P;
4042 if (e1.X_op != O_register || qp > 63)
4044 as_bad ("First operand to .spillreg.p must be a predicate");
4048 if (!convert_expr_to_ab_reg (&e2, &ab, ®))
4050 as_bad ("Second operand to .spillreg.p must be a preserved register");
4054 if (!convert_expr_to_xy_reg (&e3, &xy, &treg))
4056 as_bad ("Third operand to .spillreg.p must be a register");
4060 add_unwind_entry (output_spill_reg_p (ab, reg, treg, xy, qp));
4064 dot_spillmem_p (psprel)
4067 expressionS e1, e2, e3;
4069 unsigned int ab, reg;
4072 if (!in_procedure ("spillmem.p"))
4075 sep = parse_operand (&e1);
4078 as_bad ("Second operand missing");
4082 parse_operand (&e2);
4085 as_bad ("Second operand missing");
4089 parse_operand (&e3);
4091 qp = e1.X_add_number - REG_P;
4092 if (e1.X_op != O_register || qp > 63)
4094 as_bad ("First operand to .spill%s_p must be a predicate",
4095 psprel ? "psp" : "sp");
4099 if (!convert_expr_to_ab_reg (&e2, &ab, ®))
4101 as_bad ("Second operand to .spill%s_p must be a preserved register",
4102 psprel ? "psp" : "sp");
4106 if (e3.X_op != O_constant)
4108 as_bad ("Third operand to .spill%s_p must be a constant",
4109 psprel ? "psp" : "sp");
4114 add_unwind_entry (output_spill_psprel_p (ab, reg, e3.X_add_number, qp));
4116 add_unwind_entry (output_spill_sprel_p (ab, reg, e3.X_add_number, qp));
4120 get_saved_prologue_count (lbl)
4123 label_prologue_count *lpc = unwind.saved_prologue_counts;
4125 while (lpc != NULL && lpc->label_number != lbl)
4129 return lpc->prologue_count;
4131 as_bad ("Missing .label_state %ld", lbl);
4136 save_prologue_count (lbl, count)
4140 label_prologue_count *lpc = unwind.saved_prologue_counts;
4142 while (lpc != NULL && lpc->label_number != lbl)
4146 lpc->prologue_count = count;
4149 label_prologue_count *new_lpc = xmalloc (sizeof (* new_lpc));
4151 new_lpc->next = unwind.saved_prologue_counts;
4152 new_lpc->label_number = lbl;
4153 new_lpc->prologue_count = count;
4154 unwind.saved_prologue_counts = new_lpc;
4159 free_saved_prologue_counts ()
4161 label_prologue_count *lpc = unwind.saved_prologue_counts;
4162 label_prologue_count *next;
4171 unwind.saved_prologue_counts = NULL;
4175 dot_label_state (dummy)
4176 int dummy ATTRIBUTE_UNUSED;
4180 if (!in_body ("label_state"))
4184 if (e.X_op != O_constant)
4186 as_bad ("Operand to .label_state must be a constant");
4189 add_unwind_entry (output_label_state (e.X_add_number));
4190 save_prologue_count (e.X_add_number, unwind.prologue_count);
4194 dot_copy_state (dummy)
4195 int dummy ATTRIBUTE_UNUSED;
4199 if (!in_body ("copy_state"))
4203 if (e.X_op != O_constant)
4205 as_bad ("Operand to .copy_state must be a constant");
4208 add_unwind_entry (output_copy_state (e.X_add_number));
4209 unwind.prologue_count = get_saved_prologue_count (e.X_add_number);
4214 int dummy ATTRIBUTE_UNUSED;
4219 if (!in_procedure ("unwabi"))
4222 sep = parse_operand (&e1);
4225 as_bad ("Second operand to .unwabi missing");
4228 sep = parse_operand (&e2);
4229 if (!is_end_of_line[sep] && !is_it_end_of_statement ())
4230 demand_empty_rest_of_line ();
4232 if (e1.X_op != O_constant)
4234 as_bad ("First operand to .unwabi must be a constant");
4238 if (e2.X_op != O_constant)
4240 as_bad ("Second operand to .unwabi must be a constant");
4244 add_unwind_entry (output_unwabi (e1.X_add_number, e2.X_add_number));
4248 dot_personality (dummy)
4249 int dummy ATTRIBUTE_UNUSED;
4252 if (!in_procedure ("personality"))
4255 name = input_line_pointer;
4256 c = get_symbol_end ();
4257 p = input_line_pointer;
4258 unwind.personality_routine = symbol_find_or_make (name);
4259 unwind.force_unwind_entry = 1;
4262 demand_empty_rest_of_line ();
4267 int dummy ATTRIBUTE_UNUSED;
4272 unwind.proc_start = 0;
4273 /* Parse names of main and alternate entry points and mark them as
4274 function symbols: */
4278 name = input_line_pointer;
4279 c = get_symbol_end ();
4280 p = input_line_pointer;
4282 as_bad ("Empty argument of .proc");
4285 sym = symbol_find_or_make (name);
4286 if (S_IS_DEFINED (sym))
4287 as_bad ("`%s' was already defined", name);
4288 else if (unwind.proc_start == 0)
4290 unwind.proc_start = sym;
4292 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
4296 if (*input_line_pointer != ',')
4298 ++input_line_pointer;
4300 if (unwind.proc_start == 0)
4301 unwind.proc_start = expr_build_dot ();
4302 demand_empty_rest_of_line ();
4305 unwind.prologue = 0;
4306 unwind.prologue_count = 0;
4309 unwind.list = unwind.tail = unwind.current_entry = NULL;
4310 unwind.personality_routine = 0;
4315 int dummy ATTRIBUTE_UNUSED;
4317 if (!in_procedure ("body"))
4319 if (!unwind.prologue && !unwind.body && unwind.insn)
4320 as_warn ("Initial .body should precede any instructions");
4322 unwind.prologue = 0;
4323 unwind.prologue_mask = 0;
4326 add_unwind_entry (output_body ());
4327 demand_empty_rest_of_line ();
4331 dot_prologue (dummy)
4332 int dummy ATTRIBUTE_UNUSED;
4335 int mask = 0, grsave = 0;
4337 if (!in_procedure ("prologue"))
4339 if (unwind.prologue)
4341 as_bad (".prologue within prologue");
4342 ignore_rest_of_line ();
4345 if (!unwind.body && unwind.insn)
4346 as_warn ("Initial .prologue should precede any instructions");
4348 if (!is_it_end_of_statement ())
4351 sep = parse_operand (&e1);
4353 as_bad ("No second operand to .prologue");
4354 sep = parse_operand (&e2);
4355 if (!is_end_of_line[sep] && !is_it_end_of_statement ())
4356 demand_empty_rest_of_line ();
4358 if (e1.X_op == O_constant)
4360 mask = e1.X_add_number;
4362 if (e2.X_op == O_constant)
4363 grsave = e2.X_add_number;
4364 else if (e2.X_op == O_register
4365 && (grsave = e2.X_add_number - REG_GR) < 128)
4368 as_bad ("Second operand not a constant or general register");
4370 add_unwind_entry (output_prologue_gr (mask, grsave));
4373 as_bad ("First operand not a constant");
4376 add_unwind_entry (output_prologue ());
4378 unwind.prologue = 1;
4379 unwind.prologue_mask = mask;
4381 ++unwind.prologue_count;
4386 int dummy ATTRIBUTE_UNUSED;
4389 int bytes_per_address;
4392 subsegT saved_subseg;
4393 char *name, *default_name, *p, c;
4395 int unwind_check = md.unwind_check;
4397 md.unwind_check = unwind_check_error;
4398 if (!in_procedure ("endp"))
4400 md.unwind_check = unwind_check;
4402 if (unwind.saved_text_seg)
4404 saved_seg = unwind.saved_text_seg;
4405 saved_subseg = unwind.saved_text_subseg;
4406 unwind.saved_text_seg = NULL;
4410 saved_seg = now_seg;
4411 saved_subseg = now_subseg;
4414 insn_group_break (1, 0, 0);
4416 /* If there wasn't a .handlerdata, we haven't generated an image yet. */
4418 generate_unwind_image (saved_seg);
4420 if (unwind.info || unwind.force_unwind_entry)
4424 subseg_set (md.last_text_seg, 0);
4425 proc_end = expr_build_dot ();
4427 start_unwind_section (saved_seg, SPECIAL_SECTION_UNWIND);
4429 /* Make sure that section has 4 byte alignment for ILP32 and
4430 8 byte alignment for LP64. */
4431 record_alignment (now_seg, md.pointer_size_shift);
4433 /* Need space for 3 pointers for procedure start, procedure end,
4435 memset (frag_more (3 * md.pointer_size), 0, 3 * md.pointer_size);
4436 where = frag_now_fix () - (3 * md.pointer_size);
4437 bytes_per_address = bfd_arch_bits_per_address (stdoutput) / 8;
4439 /* Issue the values of a) Proc Begin, b) Proc End, c) Unwind Record. */
4440 e.X_op = O_pseudo_fixup;
4441 e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym;
4443 if (!S_IS_LOCAL (unwind.proc_start)
4444 && S_IS_DEFINED (unwind.proc_start))
4445 e.X_add_symbol = symbol_temp_new (S_GET_SEGMENT (unwind.proc_start),
4446 S_GET_VALUE (unwind.proc_start),
4447 symbol_get_frag (unwind.proc_start));
4449 e.X_add_symbol = unwind.proc_start;
4450 ia64_cons_fix_new (frag_now, where, bytes_per_address, &e);
4452 e.X_op = O_pseudo_fixup;
4453 e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym;
4455 e.X_add_symbol = proc_end;
4456 ia64_cons_fix_new (frag_now, where + bytes_per_address,
4457 bytes_per_address, &e);
4461 e.X_op = O_pseudo_fixup;
4462 e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym;
4464 e.X_add_symbol = unwind.info;
4465 ia64_cons_fix_new (frag_now, where + (bytes_per_address * 2),
4466 bytes_per_address, &e);
4469 subseg_set (saved_seg, saved_subseg);
4471 if (unwind.proc_start)
4472 default_name = (char *) S_GET_NAME (unwind.proc_start);
4474 default_name = NULL;
4476 /* Parse names of main and alternate entry points and set symbol sizes. */
4480 name = input_line_pointer;
4481 c = get_symbol_end ();
4482 p = input_line_pointer;
4485 if (md.unwind_check == unwind_check_warning)
4489 as_warn ("Empty argument of .endp. Use the default name `%s'",
4491 name = default_name;
4494 as_warn ("Empty argument of .endp");
4497 as_bad ("Empty argument of .endp");
4501 sym = symbol_find (name);
4503 && md.unwind_check == unwind_check_warning
4505 && default_name != name)
4507 /* We have a bad name. Try the default one if needed. */
4508 as_warn ("`%s' was not defined within procedure. Use the default name `%s'",
4509 name, default_name);
4510 name = default_name;
4511 sym = symbol_find (name);
4513 if (!sym || !S_IS_DEFINED (sym))
4514 as_bad ("`%s' was not defined within procedure", name);
4515 else if (unwind.proc_start
4516 && (symbol_get_bfdsym (sym)->flags & BSF_FUNCTION)
4517 && S_GET_SIZE (sym) == 0 && symbol_get_obj (sym)->size == NULL)
4519 fragS *fr = symbol_get_frag (unwind.proc_start);
4520 fragS *frag = symbol_get_frag (sym);
4522 /* Check whether the function label is at or beyond last
4524 while (fr && fr != frag)
4528 if (frag == frag_now && SEG_NORMAL (now_seg))
4529 S_SET_SIZE (sym, frag_now_fix () - S_GET_VALUE (sym));
4532 symbol_get_obj (sym)->size =
4533 (expressionS *) xmalloc (sizeof (expressionS));
4534 symbol_get_obj (sym)->size->X_op = O_subtract;
4535 symbol_get_obj (sym)->size->X_add_symbol
4536 = symbol_new (FAKE_LABEL_NAME, now_seg,
4537 frag_now_fix (), frag_now);
4538 symbol_get_obj (sym)->size->X_op_symbol = sym;
4539 symbol_get_obj (sym)->size->X_add_number = 0;
4546 if (*input_line_pointer != ',')
4548 ++input_line_pointer;
4550 demand_empty_rest_of_line ();
4551 unwind.proc_start = unwind.info = 0;
4555 dot_template (template)
4558 CURR_SLOT.user_template = template;
4563 int dummy ATTRIBUTE_UNUSED;
4565 int ins, locs, outs, rots;
4567 if (is_it_end_of_statement ())
4568 ins = locs = outs = rots = 0;
4571 ins = get_absolute_expression ();
4572 if (*input_line_pointer++ != ',')
4574 locs = get_absolute_expression ();
4575 if (*input_line_pointer++ != ',')
4577 outs = get_absolute_expression ();
4578 if (*input_line_pointer++ != ',')
4580 rots = get_absolute_expression ();
4582 set_regstack (ins, locs, outs, rots);
4586 as_bad ("Comma expected");
4587 ignore_rest_of_line ();
4594 unsigned num_regs, num_alloced = 0;
4595 struct dynreg **drpp, *dr;
4596 int ch, base_reg = 0;
4602 case DYNREG_GR: base_reg = REG_GR + 32; break;
4603 case DYNREG_FR: base_reg = REG_FR + 32; break;
4604 case DYNREG_PR: base_reg = REG_P + 16; break;
4608 /* First, remove existing names from hash table. */
4609 for (dr = md.dynreg[type]; dr && dr->num_regs; dr = dr->next)
4611 hash_delete (md.dynreg_hash, dr->name);
4612 /* FIXME: Free dr->name. */
4616 drpp = &md.dynreg[type];
4619 start = input_line_pointer;
4620 ch = get_symbol_end ();
4621 len = strlen (ia64_canonicalize_symbol_name (start));
4622 *input_line_pointer = ch;
4625 if (*input_line_pointer != '[')
4627 as_bad ("Expected '['");
4630 ++input_line_pointer; /* skip '[' */
4632 num_regs = get_absolute_expression ();
4634 if (*input_line_pointer++ != ']')
4636 as_bad ("Expected ']'");
4641 num_alloced += num_regs;
4645 if (num_alloced > md.rot.num_regs)
4647 as_bad ("Used more than the declared %d rotating registers",
4653 if (num_alloced > 96)
4655 as_bad ("Used more than the available 96 rotating registers");
4660 if (num_alloced > 48)
4662 as_bad ("Used more than the available 48 rotating registers");
4673 *drpp = obstack_alloc (¬es, sizeof (*dr));
4674 memset (*drpp, 0, sizeof (*dr));
4677 name = obstack_alloc (¬es, len + 1);
4678 memcpy (name, start, len);
4683 dr->num_regs = num_regs;
4684 dr->base = base_reg;
4686 base_reg += num_regs;
4688 if (hash_insert (md.dynreg_hash, name, dr))
4690 as_bad ("Attempt to redefine register set `%s'", name);
4691 obstack_free (¬es, name);
4695 if (*input_line_pointer != ',')
4697 ++input_line_pointer; /* skip comma */
4700 demand_empty_rest_of_line ();
4704 ignore_rest_of_line ();
4708 dot_byteorder (byteorder)
4711 segment_info_type *seginfo = seg_info (now_seg);
4713 if (byteorder == -1)
4715 if (seginfo->tc_segment_info_data.endian == 0)
4716 seginfo->tc_segment_info_data.endian = default_big_endian ? 1 : 2;
4717 byteorder = seginfo->tc_segment_info_data.endian == 1;
4720 seginfo->tc_segment_info_data.endian = byteorder ? 1 : 2;
4722 if (target_big_endian != byteorder)
4724 target_big_endian = byteorder;
4725 if (target_big_endian)
4727 ia64_number_to_chars = number_to_chars_bigendian;
4728 ia64_float_to_chars = ia64_float_to_chars_bigendian;
4732 ia64_number_to_chars = number_to_chars_littleendian;
4733 ia64_float_to_chars = ia64_float_to_chars_littleendian;
4740 int dummy ATTRIBUTE_UNUSED;
4747 option = input_line_pointer;
4748 ch = get_symbol_end ();
4749 if (strcmp (option, "lsb") == 0)
4750 md.flags &= ~EF_IA_64_BE;
4751 else if (strcmp (option, "msb") == 0)
4752 md.flags |= EF_IA_64_BE;
4753 else if (strcmp (option, "abi32") == 0)
4754 md.flags &= ~EF_IA_64_ABI64;
4755 else if (strcmp (option, "abi64") == 0)
4756 md.flags |= EF_IA_64_ABI64;
4758 as_bad ("Unknown psr option `%s'", option);
4759 *input_line_pointer = ch;
4762 if (*input_line_pointer != ',')
4765 ++input_line_pointer;
4768 demand_empty_rest_of_line ();
4773 int dummy ATTRIBUTE_UNUSED;
4775 new_logical_line (0, get_absolute_expression ());
4776 demand_empty_rest_of_line ();
4780 cross_section (ref, cons, ua)
4782 void (*cons) PARAMS((int));
4786 int saved_auto_align;
4787 unsigned int section_count;
4790 start = input_line_pointer;
4796 name = demand_copy_C_string (&len);
4797 obstack_free(¬es, name);
4800 ignore_rest_of_line ();
4806 char c = get_symbol_end ();
4808 if (input_line_pointer == start)
4810 as_bad ("Missing section name");
4811 ignore_rest_of_line ();
4814 *input_line_pointer = c;
4816 end = input_line_pointer;
4818 if (*input_line_pointer != ',')
4820 as_bad ("Comma expected after section name");
4821 ignore_rest_of_line ();
4825 end = input_line_pointer + 1; /* skip comma */
4826 input_line_pointer = start;
4827 md.keep_pending_output = 1;
4828 section_count = bfd_count_sections(stdoutput);
4829 obj_elf_section (0);
4830 if (section_count != bfd_count_sections(stdoutput))
4831 as_warn ("Creating sections with .xdataN/.xrealN/.xstringZ is deprecated.");
4832 input_line_pointer = end;
4833 saved_auto_align = md.auto_align;
4838 md.auto_align = saved_auto_align;
4839 obj_elf_previous (0);
4840 md.keep_pending_output = 0;
4847 cross_section (size, cons, 0);
4850 /* Why doesn't float_cons() call md_cons_align() the way cons() does? */
4853 stmt_float_cons (kind)
4874 ia64_do_align (alignment);
4882 int saved_auto_align = md.auto_align;
4886 md.auto_align = saved_auto_align;
4890 dot_xfloat_cons (kind)
4893 cross_section (kind, stmt_float_cons, 0);
4897 dot_xstringer (zero)
4900 cross_section (zero, stringer, 0);
4907 cross_section (size, cons, 1);
4911 dot_xfloat_cons_ua (kind)
4914 cross_section (kind, float_cons, 1);
4917 /* .reg.val <regname>,value */
4921 int dummy ATTRIBUTE_UNUSED;
4926 if (reg.X_op != O_register)
4928 as_bad (_("Register name expected"));
4929 ignore_rest_of_line ();
4931 else if (*input_line_pointer++ != ',')
4933 as_bad (_("Comma expected"));
4934 ignore_rest_of_line ();
4938 valueT value = get_absolute_expression ();
4939 int regno = reg.X_add_number;
4940 if (regno <= REG_GR || regno > REG_GR + 127)
4941 as_warn (_("Register value annotation ignored"));
4944 gr_values[regno - REG_GR].known = 1;
4945 gr_values[regno - REG_GR].value = value;
4946 gr_values[regno - REG_GR].path = md.path;
4949 demand_empty_rest_of_line ();
4954 .serialize.instruction
4957 dot_serialize (type)
4960 insn_group_break (0, 0, 0);
4962 instruction_serialization ();
4964 data_serialization ();
4965 insn_group_break (0, 0, 0);
4966 demand_empty_rest_of_line ();
4969 /* select dv checking mode
4974 A stop is inserted when changing modes
4981 if (md.manual_bundling)
4982 as_warn (_("Directive invalid within a bundle"));
4984 if (type == 'E' || type == 'A')
4985 md.mode_explicitly_set = 0;
4987 md.mode_explicitly_set = 1;
4994 if (md.explicit_mode)
4995 insn_group_break (1, 0, 0);
4996 md.explicit_mode = 0;
5000 if (!md.explicit_mode)
5001 insn_group_break (1, 0, 0);
5002 md.explicit_mode = 1;
5006 if (md.explicit_mode != md.default_explicit_mode)
5007 insn_group_break (1, 0, 0);
5008 md.explicit_mode = md.default_explicit_mode;
5009 md.mode_explicitly_set = 0;
5020 for (regno = 0; regno < 64; regno++)
5022 if (mask & ((valueT) 1 << regno))
5024 fprintf (stderr, "%s p%d", comma, regno);
5031 .pred.rel.clear [p1 [,p2 [,...]]] (also .pred.rel "clear" or @clear)
5032 .pred.rel.imply p1, p2 (also .pred.rel "imply" or @imply)
5033 .pred.rel.mutex p1, p2 [,...] (also .pred.rel "mutex" or @mutex)
5034 .pred.safe_across_calls p1 [, p2 [,...]]
5043 int p1 = -1, p2 = -1;
5047 if (*input_line_pointer == '"')
5050 char *form = demand_copy_C_string (&len);
5052 if (strcmp (form, "mutex") == 0)
5054 else if (strcmp (form, "clear") == 0)
5056 else if (strcmp (form, "imply") == 0)
5058 obstack_free (¬es, form);
5060 else if (*input_line_pointer == '@')
5062 char *form = ++input_line_pointer;
5063 char c = get_symbol_end();
5065 if (strcmp (form, "mutex") == 0)
5067 else if (strcmp (form, "clear") == 0)
5069 else if (strcmp (form, "imply") == 0)
5071 *input_line_pointer = c;
5075 as_bad (_("Missing predicate relation type"));
5076 ignore_rest_of_line ();
5081 as_bad (_("Unrecognized predicate relation type"));
5082 ignore_rest_of_line ();
5085 if (*input_line_pointer == ',')
5086 ++input_line_pointer;
5095 expressionS pr, *pr1, *pr2;
5098 if (pr.X_op == O_register
5099 && pr.X_add_number >= REG_P
5100 && pr.X_add_number <= REG_P + 63)
5102 regno = pr.X_add_number - REG_P;
5110 else if (type != 'i'
5111 && pr.X_op == O_subtract
5112 && (pr1 = symbol_get_value_expression (pr.X_add_symbol))
5113 && pr1->X_op == O_register
5114 && pr1->X_add_number >= REG_P
5115 && pr1->X_add_number <= REG_P + 63
5116 && (pr2 = symbol_get_value_expression (pr.X_op_symbol))
5117 && pr2->X_op == O_register
5118 && pr2->X_add_number >= REG_P
5119 && pr2->X_add_number <= REG_P + 63)
5124 regno = pr1->X_add_number - REG_P;
5125 stop = pr2->X_add_number - REG_P;
5128 as_bad (_("Bad register range"));
5129 ignore_rest_of_line ();
5132 bits = ((bits << stop) << 1) - (bits << regno);
5133 count += stop - regno + 1;
5137 as_bad (_("Predicate register expected"));
5138 ignore_rest_of_line ();
5142 as_warn (_("Duplicate predicate register ignored"));
5144 if (*input_line_pointer != ',')
5146 ++input_line_pointer;
5155 clear_qp_mutex (mask);
5156 clear_qp_implies (mask, (valueT) 0);
5159 if (count != 2 || p1 == -1 || p2 == -1)
5160 as_bad (_("Predicate source and target required"));
5161 else if (p1 == 0 || p2 == 0)
5162 as_bad (_("Use of p0 is not valid in this context"));
5164 add_qp_imply (p1, p2);
5169 as_bad (_("At least two PR arguments expected"));
5174 as_bad (_("Use of p0 is not valid in this context"));
5177 add_qp_mutex (mask);
5180 /* note that we don't override any existing relations */
5183 as_bad (_("At least one PR argument expected"));
5188 fprintf (stderr, "Safe across calls: ");
5189 print_prmask (mask);
5190 fprintf (stderr, "\n");
5192 qp_safe_across_calls = mask;
5195 demand_empty_rest_of_line ();
5198 /* .entry label [, label [, ...]]
5199 Hint to DV code that the given labels are to be considered entry points.
5200 Otherwise, only global labels are considered entry points. */
5204 int dummy ATTRIBUTE_UNUSED;
5213 name = input_line_pointer;
5214 c = get_symbol_end ();
5215 symbolP = symbol_find_or_make (name);
5217 err = hash_insert (md.entry_hash, S_GET_NAME (symbolP), (PTR) symbolP);
5219 as_fatal (_("Inserting \"%s\" into entry hint table failed: %s"),
5222 *input_line_pointer = c;
5224 c = *input_line_pointer;
5227 input_line_pointer++;
5229 if (*input_line_pointer == '\n')
5235 demand_empty_rest_of_line ();
5238 /* .mem.offset offset, base
5239 "base" is used to distinguish between offsets from a different base. */
5242 dot_mem_offset (dummy)
5243 int dummy ATTRIBUTE_UNUSED;
5245 md.mem_offset.hint = 1;
5246 md.mem_offset.offset = get_absolute_expression ();
5247 if (*input_line_pointer != ',')
5249 as_bad (_("Comma expected"));
5250 ignore_rest_of_line ();
5253 ++input_line_pointer;
5254 md.mem_offset.base = get_absolute_expression ();
5255 demand_empty_rest_of_line ();
5258 /* ia64-specific pseudo-ops: */
5259 const pseudo_typeS md_pseudo_table[] =
5261 { "radix", dot_radix, 0 },
5262 { "lcomm", s_lcomm_bytes, 1 },
5263 { "loc", dot_loc, 0 },
5264 { "bss", dot_special_section, SPECIAL_SECTION_BSS },
5265 { "sbss", dot_special_section, SPECIAL_SECTION_SBSS },
5266 { "sdata", dot_special_section, SPECIAL_SECTION_SDATA },
5267 { "rodata", dot_special_section, SPECIAL_SECTION_RODATA },
5268 { "comment", dot_special_section, SPECIAL_SECTION_COMMENT },
5269 { "ia_64.unwind", dot_special_section, SPECIAL_SECTION_UNWIND },
5270 { "ia_64.unwind_info", dot_special_section, SPECIAL_SECTION_UNWIND_INFO },
5271 { "init_array", dot_special_section, SPECIAL_SECTION_INIT_ARRAY },
5272 { "fini_array", dot_special_section, SPECIAL_SECTION_FINI_ARRAY },
5273 { "proc", dot_proc, 0 },
5274 { "body", dot_body, 0 },
5275 { "prologue", dot_prologue, 0 },
5276 { "endp", dot_endp, 0 },
5278 { "fframe", dot_fframe, 0 },
5279 { "vframe", dot_vframe, 0 },
5280 { "vframesp", dot_vframesp, 0 },
5281 { "vframepsp", dot_vframepsp, 0 },
5282 { "save", dot_save, 0 },
5283 { "restore", dot_restore, 0 },
5284 { "restorereg", dot_restorereg, 0 },
5285 { "restorereg.p", dot_restorereg_p, 0 },
5286 { "handlerdata", dot_handlerdata, 0 },
5287 { "unwentry", dot_unwentry, 0 },
5288 { "altrp", dot_altrp, 0 },
5289 { "savesp", dot_savemem, 0 },
5290 { "savepsp", dot_savemem, 1 },
5291 { "save.g", dot_saveg, 0 },
5292 { "save.f", dot_savef, 0 },
5293 { "save.b", dot_saveb, 0 },
5294 { "save.gf", dot_savegf, 0 },
5295 { "spill", dot_spill, 0 },
5296 { "spillreg", dot_spillreg, 0 },
5297 { "spillsp", dot_spillmem, 0 },
5298 { "spillpsp", dot_spillmem, 1 },
5299 { "spillreg.p", dot_spillreg_p, 0 },
5300 { "spillsp.p", dot_spillmem_p, 0 },
5301 { "spillpsp.p", dot_spillmem_p, 1 },
5302 { "label_state", dot_label_state, 0 },
5303 { "copy_state", dot_copy_state, 0 },
5304 { "unwabi", dot_unwabi, 0 },
5305 { "personality", dot_personality, 0 },
5306 { "mii", dot_template, 0x0 },
5307 { "mli", dot_template, 0x2 }, /* old format, for compatibility */
5308 { "mlx", dot_template, 0x2 },
5309 { "mmi", dot_template, 0x4 },
5310 { "mfi", dot_template, 0x6 },
5311 { "mmf", dot_template, 0x7 },
5312 { "mib", dot_template, 0x8 },
5313 { "mbb", dot_template, 0x9 },
5314 { "bbb", dot_template, 0xb },
5315 { "mmb", dot_template, 0xc },
5316 { "mfb", dot_template, 0xe },
5317 { "align", dot_align, 0 },
5318 { "regstk", dot_regstk, 0 },
5319 { "rotr", dot_rot, DYNREG_GR },
5320 { "rotf", dot_rot, DYNREG_FR },
5321 { "rotp", dot_rot, DYNREG_PR },
5322 { "lsb", dot_byteorder, 0 },
5323 { "msb", dot_byteorder, 1 },
5324 { "psr", dot_psr, 0 },
5325 { "alias", dot_alias, 0 },
5326 { "secalias", dot_alias, 1 },
5327 { "ln", dot_ln, 0 }, /* source line info (for debugging) */
5329 { "xdata1", dot_xdata, 1 },
5330 { "xdata2", dot_xdata, 2 },
5331 { "xdata4", dot_xdata, 4 },
5332 { "xdata8", dot_xdata, 8 },
5333 { "xdata16", dot_xdata, 16 },
5334 { "xreal4", dot_xfloat_cons, 'f' },
5335 { "xreal8", dot_xfloat_cons, 'd' },
5336 { "xreal10", dot_xfloat_cons, 'x' },
5337 { "xreal16", dot_xfloat_cons, 'X' },
5338 { "xstring", dot_xstringer, 0 },
5339 { "xstringz", dot_xstringer, 1 },
5341 /* unaligned versions: */
5342 { "xdata2.ua", dot_xdata_ua, 2 },
5343 { "xdata4.ua", dot_xdata_ua, 4 },
5344 { "xdata8.ua", dot_xdata_ua, 8 },
5345 { "xdata16.ua", dot_xdata_ua, 16 },
5346 { "xreal4.ua", dot_xfloat_cons_ua, 'f' },
5347 { "xreal8.ua", dot_xfloat_cons_ua, 'd' },
5348 { "xreal10.ua", dot_xfloat_cons_ua, 'x' },
5349 { "xreal16.ua", dot_xfloat_cons_ua, 'X' },
5351 /* annotations/DV checking support */
5352 { "entry", dot_entry, 0 },
5353 { "mem.offset", dot_mem_offset, 0 },
5354 { "pred.rel", dot_pred_rel, 0 },
5355 { "pred.rel.clear", dot_pred_rel, 'c' },
5356 { "pred.rel.imply", dot_pred_rel, 'i' },
5357 { "pred.rel.mutex", dot_pred_rel, 'm' },
5358 { "pred.safe_across_calls", dot_pred_rel, 's' },
5359 { "reg.val", dot_reg_val, 0 },
5360 { "serialize.data", dot_serialize, 0 },
5361 { "serialize.instruction", dot_serialize, 1 },
5362 { "auto", dot_dv_mode, 'a' },
5363 { "explicit", dot_dv_mode, 'e' },
5364 { "default", dot_dv_mode, 'd' },
5366 /* ??? These are needed to make gas/testsuite/gas/elf/ehopt.s work.
5367 IA-64 aligns data allocation pseudo-ops by default, so we have to
5368 tell it that these ones are supposed to be unaligned. Long term,
5369 should rewrite so that only IA-64 specific data allocation pseudo-ops
5370 are aligned by default. */
5371 {"2byte", stmt_cons_ua, 2},
5372 {"4byte", stmt_cons_ua, 4},
5373 {"8byte", stmt_cons_ua, 8},
5378 static const struct pseudo_opcode
5381 void (*handler) (int);
5386 /* these are more like pseudo-ops, but don't start with a dot */
5387 { "data1", cons, 1 },
5388 { "data2", cons, 2 },
5389 { "data4", cons, 4 },
5390 { "data8", cons, 8 },
5391 { "data16", cons, 16 },
5392 { "real4", stmt_float_cons, 'f' },
5393 { "real8", stmt_float_cons, 'd' },
5394 { "real10", stmt_float_cons, 'x' },
5395 { "real16", stmt_float_cons, 'X' },
5396 { "string", stringer, 0 },
5397 { "stringz", stringer, 1 },
5399 /* unaligned versions: */
5400 { "data2.ua", stmt_cons_ua, 2 },
5401 { "data4.ua", stmt_cons_ua, 4 },
5402 { "data8.ua", stmt_cons_ua, 8 },
5403 { "data16.ua", stmt_cons_ua, 16 },
5404 { "real4.ua", float_cons, 'f' },
5405 { "real8.ua", float_cons, 'd' },
5406 { "real10.ua", float_cons, 'x' },
5407 { "real16.ua", float_cons, 'X' },
5410 /* Declare a register by creating a symbol for it and entering it in
5411 the symbol table. */
5414 declare_register (name, regnum)
5421 sym = symbol_new (name, reg_section, regnum, &zero_address_frag);
5423 err = hash_insert (md.reg_hash, S_GET_NAME (sym), (PTR) sym);
5425 as_fatal ("Inserting \"%s\" into register table failed: %s",
5432 declare_register_set (prefix, num_regs, base_regnum)
5440 for (i = 0; i < num_regs; ++i)
5442 sprintf (name, "%s%u", prefix, i);
5443 declare_register (name, base_regnum + i);
5448 operand_width (opnd)
5449 enum ia64_opnd opnd;
5451 const struct ia64_operand *odesc = &elf64_ia64_operands[opnd];
5452 unsigned int bits = 0;
5456 for (i = 0; i < NELEMS (odesc->field) && odesc->field[i].bits; ++i)
5457 bits += odesc->field[i].bits;
5462 static enum operand_match_result
5463 operand_match (idesc, index, e)
5464 const struct ia64_opcode *idesc;
5468 enum ia64_opnd opnd = idesc->operands[index];
5469 int bits, relocatable = 0;
5470 struct insn_fix *fix;
5477 case IA64_OPND_AR_CCV:
5478 if (e->X_op == O_register && e->X_add_number == REG_AR + 32)
5479 return OPERAND_MATCH;
5482 case IA64_OPND_AR_CSD:
5483 if (e->X_op == O_register && e->X_add_number == REG_AR + 25)
5484 return OPERAND_MATCH;
5487 case IA64_OPND_AR_PFS:
5488 if (e->X_op == O_register && e->X_add_number == REG_AR + 64)
5489 return OPERAND_MATCH;
5493 if (e->X_op == O_register && e->X_add_number == REG_GR + 0)
5494 return OPERAND_MATCH;
5498 if (e->X_op == O_register && e->X_add_number == REG_IP)
5499 return OPERAND_MATCH;
5503 if (e->X_op == O_register && e->X_add_number == REG_PR)
5504 return OPERAND_MATCH;
5507 case IA64_OPND_PR_ROT:
5508 if (e->X_op == O_register && e->X_add_number == REG_PR_ROT)
5509 return OPERAND_MATCH;
5513 if (e->X_op == O_register && e->X_add_number == REG_PSR)
5514 return OPERAND_MATCH;
5517 case IA64_OPND_PSR_L:
5518 if (e->X_op == O_register && e->X_add_number == REG_PSR_L)
5519 return OPERAND_MATCH;
5522 case IA64_OPND_PSR_UM:
5523 if (e->X_op == O_register && e->X_add_number == REG_PSR_UM)
5524 return OPERAND_MATCH;
5528 if (e->X_op == O_constant)
5530 if (e->X_add_number == 1)
5531 return OPERAND_MATCH;
5533 return OPERAND_OUT_OF_RANGE;
5538 if (e->X_op == O_constant)
5540 if (e->X_add_number == 8)
5541 return OPERAND_MATCH;
5543 return OPERAND_OUT_OF_RANGE;
5548 if (e->X_op == O_constant)
5550 if (e->X_add_number == 16)
5551 return OPERAND_MATCH;
5553 return OPERAND_OUT_OF_RANGE;
5557 /* register operands: */
5560 if (e->X_op == O_register && e->X_add_number >= REG_AR
5561 && e->X_add_number < REG_AR + 128)
5562 return OPERAND_MATCH;
5567 if (e->X_op == O_register && e->X_add_number >= REG_BR
5568 && e->X_add_number < REG_BR + 8)
5569 return OPERAND_MATCH;
5573 if (e->X_op == O_register && e->X_add_number >= REG_CR
5574 && e->X_add_number < REG_CR + 128)
5575 return OPERAND_MATCH;
5582 if (e->X_op == O_register && e->X_add_number >= REG_FR
5583 && e->X_add_number < REG_FR + 128)
5584 return OPERAND_MATCH;
5589 if (e->X_op == O_register && e->X_add_number >= REG_P
5590 && e->X_add_number < REG_P + 64)
5591 return OPERAND_MATCH;
5597 if (e->X_op == O_register && e->X_add_number >= REG_GR
5598 && e->X_add_number < REG_GR + 128)
5599 return OPERAND_MATCH;
5602 case IA64_OPND_R3_2:
5603 if (e->X_op == O_register && e->X_add_number >= REG_GR)
5605 if (e->X_add_number < REG_GR + 4)
5606 return OPERAND_MATCH;
5607 else if (e->X_add_number < REG_GR + 128)
5608 return OPERAND_OUT_OF_RANGE;
5612 /* indirect operands: */
5613 case IA64_OPND_CPUID_R3:
5614 case IA64_OPND_DBR_R3:
5615 case IA64_OPND_DTR_R3:
5616 case IA64_OPND_ITR_R3:
5617 case IA64_OPND_IBR_R3:
5618 case IA64_OPND_MSR_R3:
5619 case IA64_OPND_PKR_R3:
5620 case IA64_OPND_PMC_R3:
5621 case IA64_OPND_PMD_R3:
5622 case IA64_OPND_RR_R3:
5623 if (e->X_op == O_index && e->X_op_symbol
5624 && (S_GET_VALUE (e->X_op_symbol) - IND_CPUID
5625 == opnd - IA64_OPND_CPUID_R3))
5626 return OPERAND_MATCH;
5630 if (e->X_op == O_index && !e->X_op_symbol)
5631 return OPERAND_MATCH;
5634 /* immediate operands: */
5635 case IA64_OPND_CNT2a:
5636 case IA64_OPND_LEN4:
5637 case IA64_OPND_LEN6:
5638 bits = operand_width (idesc->operands[index]);
5639 if (e->X_op == O_constant)
5641 if ((bfd_vma) (e->X_add_number - 1) < ((bfd_vma) 1 << bits))
5642 return OPERAND_MATCH;
5644 return OPERAND_OUT_OF_RANGE;
5648 case IA64_OPND_CNT2b:
5649 if (e->X_op == O_constant)
5651 if ((bfd_vma) (e->X_add_number - 1) < 3)
5652 return OPERAND_MATCH;
5654 return OPERAND_OUT_OF_RANGE;
5658 case IA64_OPND_CNT2c:
5659 val = e->X_add_number;
5660 if (e->X_op == O_constant)
5662 if ((val == 0 || val == 7 || val == 15 || val == 16))
5663 return OPERAND_MATCH;
5665 return OPERAND_OUT_OF_RANGE;
5670 /* SOR must be an integer multiple of 8 */
5671 if (e->X_op == O_constant && e->X_add_number & 0x7)
5672 return OPERAND_OUT_OF_RANGE;
5675 if (e->X_op == O_constant)
5677 if ((bfd_vma) e->X_add_number <= 96)
5678 return OPERAND_MATCH;
5680 return OPERAND_OUT_OF_RANGE;
5684 case IA64_OPND_IMMU62:
5685 if (e->X_op == O_constant)
5687 if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << 62))
5688 return OPERAND_MATCH;
5690 return OPERAND_OUT_OF_RANGE;
5694 /* FIXME -- need 62-bit relocation type */
5695 as_bad (_("62-bit relocation not yet implemented"));
5699 case IA64_OPND_IMMU64:
5700 if (e->X_op == O_symbol || e->X_op == O_pseudo_fixup
5701 || e->X_op == O_subtract)
5703 fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups;
5704 fix->code = BFD_RELOC_IA64_IMM64;
5705 if (e->X_op != O_subtract)
5707 fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code);
5708 if (e->X_op == O_pseudo_fixup)
5712 fix->opnd = idesc->operands[index];
5715 ++CURR_SLOT.num_fixups;
5716 return OPERAND_MATCH;
5718 else if (e->X_op == O_constant)
5719 return OPERAND_MATCH;
5722 case IA64_OPND_CCNT5:
5723 case IA64_OPND_CNT5:
5724 case IA64_OPND_CNT6:
5725 case IA64_OPND_CPOS6a:
5726 case IA64_OPND_CPOS6b:
5727 case IA64_OPND_CPOS6c:
5728 case IA64_OPND_IMMU2:
5729 case IA64_OPND_IMMU7a:
5730 case IA64_OPND_IMMU7b:
5731 case IA64_OPND_IMMU21:
5732 case IA64_OPND_IMMU24:
5733 case IA64_OPND_MBTYPE4:
5734 case IA64_OPND_MHTYPE8:
5735 case IA64_OPND_POS6:
5736 bits = operand_width (idesc->operands[index]);
5737 if (e->X_op == O_constant)
5739 if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << bits))
5740 return OPERAND_MATCH;
5742 return OPERAND_OUT_OF_RANGE;
5746 case IA64_OPND_IMMU9:
5747 bits = operand_width (idesc->operands[index]);
5748 if (e->X_op == O_constant)
5750 if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << bits))
5752 int lobits = e->X_add_number & 0x3;
5753 if (((bfd_vma) e->X_add_number & 0x3C) != 0 && lobits == 0)
5754 e->X_add_number |= (bfd_vma) 0x3;
5755 return OPERAND_MATCH;
5758 return OPERAND_OUT_OF_RANGE;
5762 case IA64_OPND_IMM44:
5763 /* least 16 bits must be zero */
5764 if ((e->X_add_number & 0xffff) != 0)
5765 /* XXX technically, this is wrong: we should not be issuing warning
5766 messages until we're sure this instruction pattern is going to
5768 as_warn (_("lower 16 bits of mask ignored"));
5770 if (e->X_op == O_constant)
5772 if (((e->X_add_number >= 0
5773 && (bfd_vma) e->X_add_number < ((bfd_vma) 1 << 44))
5774 || (e->X_add_number < 0
5775 && (bfd_vma) -e->X_add_number <= ((bfd_vma) 1 << 44))))
5778 if (e->X_add_number >= 0
5779 && (e->X_add_number & ((bfd_vma) 1 << 43)) != 0)
5781 e->X_add_number |= ~(((bfd_vma) 1 << 44) - 1);
5783 return OPERAND_MATCH;
5786 return OPERAND_OUT_OF_RANGE;
5790 case IA64_OPND_IMM17:
5791 /* bit 0 is a don't care (pr0 is hardwired to 1) */
5792 if (e->X_op == O_constant)
5794 if (((e->X_add_number >= 0
5795 && (bfd_vma) e->X_add_number < ((bfd_vma) 1 << 17))
5796 || (e->X_add_number < 0
5797 && (bfd_vma) -e->X_add_number <= ((bfd_vma) 1 << 17))))
5800 if (e->X_add_number >= 0
5801 && (e->X_add_number & ((bfd_vma) 1 << 16)) != 0)
5803 e->X_add_number |= ~(((bfd_vma) 1 << 17) - 1);
5805 return OPERAND_MATCH;
5808 return OPERAND_OUT_OF_RANGE;
5812 case IA64_OPND_IMM14:
5813 case IA64_OPND_IMM22:
5815 case IA64_OPND_IMM1:
5816 case IA64_OPND_IMM8:
5817 case IA64_OPND_IMM8U4:
5818 case IA64_OPND_IMM8M1:
5819 case IA64_OPND_IMM8M1U4:
5820 case IA64_OPND_IMM8M1U8:
5821 case IA64_OPND_IMM9a:
5822 case IA64_OPND_IMM9b:
5823 bits = operand_width (idesc->operands[index]);
5824 if (relocatable && (e->X_op == O_symbol
5825 || e->X_op == O_subtract
5826 || e->X_op == O_pseudo_fixup))
5828 fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups;
5830 if (idesc->operands[index] == IA64_OPND_IMM14)
5831 fix->code = BFD_RELOC_IA64_IMM14;
5833 fix->code = BFD_RELOC_IA64_IMM22;
5835 if (e->X_op != O_subtract)
5837 fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code);
5838 if (e->X_op == O_pseudo_fixup)
5842 fix->opnd = idesc->operands[index];
5845 ++CURR_SLOT.num_fixups;
5846 return OPERAND_MATCH;
5848 else if (e->X_op != O_constant
5849 && ! (e->X_op == O_big && opnd == IA64_OPND_IMM8M1U8))
5850 return OPERAND_MISMATCH;
5852 if (opnd == IA64_OPND_IMM8M1U4)
5854 /* Zero is not valid for unsigned compares that take an adjusted
5855 constant immediate range. */
5856 if (e->X_add_number == 0)
5857 return OPERAND_OUT_OF_RANGE;
5859 /* Sign-extend 32-bit unsigned numbers, so that the following range
5860 checks will work. */
5861 val = e->X_add_number;
5862 if (((val & (~(bfd_vma) 0 << 32)) == 0)
5863 && ((val & ((bfd_vma) 1 << 31)) != 0))
5864 val = ((val << 32) >> 32);
5866 /* Check for 0x100000000. This is valid because
5867 0x100000000-1 is the same as ((uint32_t) -1). */
5868 if (val == ((bfd_signed_vma) 1 << 32))
5869 return OPERAND_MATCH;
5873 else if (opnd == IA64_OPND_IMM8M1U8)
5875 /* Zero is not valid for unsigned compares that take an adjusted
5876 constant immediate range. */
5877 if (e->X_add_number == 0)
5878 return OPERAND_OUT_OF_RANGE;
5880 /* Check for 0x10000000000000000. */
5881 if (e->X_op == O_big)
5883 if (generic_bignum[0] == 0
5884 && generic_bignum[1] == 0
5885 && generic_bignum[2] == 0
5886 && generic_bignum[3] == 0
5887 && generic_bignum[4] == 1)
5888 return OPERAND_MATCH;
5890 return OPERAND_OUT_OF_RANGE;
5893 val = e->X_add_number - 1;
5895 else if (opnd == IA64_OPND_IMM8M1)
5896 val = e->X_add_number - 1;
5897 else if (opnd == IA64_OPND_IMM8U4)
5899 /* Sign-extend 32-bit unsigned numbers, so that the following range
5900 checks will work. */
5901 val = e->X_add_number;
5902 if (((val & (~(bfd_vma) 0 << 32)) == 0)
5903 && ((val & ((bfd_vma) 1 << 31)) != 0))
5904 val = ((val << 32) >> 32);
5907 val = e->X_add_number;
5909 if ((val >= 0 && (bfd_vma) val < ((bfd_vma) 1 << (bits - 1)))
5910 || (val < 0 && (bfd_vma) -val <= ((bfd_vma) 1 << (bits - 1))))
5911 return OPERAND_MATCH;
5913 return OPERAND_OUT_OF_RANGE;
5915 case IA64_OPND_INC3:
5916 /* +/- 1, 4, 8, 16 */
5917 val = e->X_add_number;
5920 if (e->X_op == O_constant)
5922 if ((val == 1 || val == 4 || val == 8 || val == 16))
5923 return OPERAND_MATCH;
5925 return OPERAND_OUT_OF_RANGE;
5929 case IA64_OPND_TGT25:
5930 case IA64_OPND_TGT25b:
5931 case IA64_OPND_TGT25c:
5932 case IA64_OPND_TGT64:
5933 if (e->X_op == O_symbol)
5935 fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups;
5936 if (opnd == IA64_OPND_TGT25)
5937 fix->code = BFD_RELOC_IA64_PCREL21F;
5938 else if (opnd == IA64_OPND_TGT25b)
5939 fix->code = BFD_RELOC_IA64_PCREL21M;
5940 else if (opnd == IA64_OPND_TGT25c)
5941 fix->code = BFD_RELOC_IA64_PCREL21B;
5942 else if (opnd == IA64_OPND_TGT64)
5943 fix->code = BFD_RELOC_IA64_PCREL60B;
5947 fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code);
5948 fix->opnd = idesc->operands[index];
5951 ++CURR_SLOT.num_fixups;
5952 return OPERAND_MATCH;
5954 case IA64_OPND_TAG13:
5955 case IA64_OPND_TAG13b:
5959 return OPERAND_MATCH;
5962 fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups;
5963 /* There are no external relocs for TAG13/TAG13b fields, so we
5964 create a dummy reloc. This will not live past md_apply_fix3. */
5965 fix->code = BFD_RELOC_UNUSED;
5966 fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code);
5967 fix->opnd = idesc->operands[index];
5970 ++CURR_SLOT.num_fixups;
5971 return OPERAND_MATCH;
5978 case IA64_OPND_LDXMOV:
5979 fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups;
5980 fix->code = BFD_RELOC_IA64_LDXMOV;
5981 fix->opnd = idesc->operands[index];
5984 ++CURR_SLOT.num_fixups;
5985 return OPERAND_MATCH;
5990 return OPERAND_MISMATCH;
5999 memset (e, 0, sizeof (*e));
6002 if (*input_line_pointer != '}')
6004 sep = *input_line_pointer++;
6008 if (!md.manual_bundling)
6009 as_warn ("Found '}' when manual bundling is off");
6011 CURR_SLOT.manual_bundling_off = 1;
6012 md.manual_bundling = 0;
6018 /* Returns the next entry in the opcode table that matches the one in
6019 IDESC, and frees the entry in IDESC. If no matching entry is
6020 found, NULL is returned instead. */
6022 static struct ia64_opcode *
6023 get_next_opcode (struct ia64_opcode *idesc)
6025 struct ia64_opcode *next = ia64_find_next_opcode (idesc);
6026 ia64_free_opcode (idesc);
6030 /* Parse the operands for the opcode and find the opcode variant that
6031 matches the specified operands, or NULL if no match is possible. */
6033 static struct ia64_opcode *
6034 parse_operands (idesc)
6035 struct ia64_opcode *idesc;
6037 int i = 0, highest_unmatched_operand, num_operands = 0, num_outputs = 0;
6038 int error_pos, out_of_range_pos, curr_out_of_range_pos, sep = 0;
6041 enum ia64_opnd expected_operand = IA64_OPND_NIL;
6042 enum operand_match_result result;
6044 char *first_arg = 0, *end, *saved_input_pointer;
6047 assert (strlen (idesc->name) <= 128);
6049 strcpy (mnemonic, idesc->name);
6050 if (idesc->operands[2] == IA64_OPND_SOF
6051 || idesc->operands[1] == IA64_OPND_SOF)
6053 /* To make the common idiom "alloc loc?=ar.pfs,0,1,0,0" work, we
6054 can't parse the first operand until we have parsed the
6055 remaining operands of the "alloc" instruction. */
6057 first_arg = input_line_pointer;
6058 end = strchr (input_line_pointer, '=');
6061 as_bad ("Expected separator `='");
6064 input_line_pointer = end + 1;
6071 if (i < NELEMS (CURR_SLOT.opnd))
6073 sep = parse_operand (CURR_SLOT.opnd + i);
6074 if (CURR_SLOT.opnd[i].X_op == O_absent)
6081 sep = parse_operand (&dummy);
6082 if (dummy.X_op == O_absent)
6088 if (sep != '=' && sep != ',')
6093 if (num_outputs > 0)
6094 as_bad ("Duplicate equal sign (=) in instruction");
6096 num_outputs = i + 1;
6101 as_bad ("Illegal operand separator `%c'", sep);
6105 if (idesc->operands[2] == IA64_OPND_SOF
6106 || idesc->operands[1] == IA64_OPND_SOF)
6108 /* map alloc r1=ar.pfs,i,l,o,r to alloc r1=ar.pfs,(i+l+o),(i+l),r */
6109 know (strcmp (idesc->name, "alloc") == 0);
6110 i = (CURR_SLOT.opnd[1].X_op == O_register
6111 && CURR_SLOT.opnd[1].X_add_number == REG_AR + AR_PFS) ? 2 : 1;
6112 if (num_operands == i + 3 /* first_arg not included in this count! */
6113 && CURR_SLOT.opnd[i].X_op == O_constant
6114 && CURR_SLOT.opnd[i + 1].X_op == O_constant
6115 && CURR_SLOT.opnd[i + 2].X_op == O_constant
6116 && CURR_SLOT.opnd[i + 3].X_op == O_constant)
6118 sof = set_regstack (CURR_SLOT.opnd[i].X_add_number,
6119 CURR_SLOT.opnd[i + 1].X_add_number,
6120 CURR_SLOT.opnd[i + 2].X_add_number,
6121 CURR_SLOT.opnd[i + 3].X_add_number);
6123 /* now we can parse the first arg: */
6124 saved_input_pointer = input_line_pointer;
6125 input_line_pointer = first_arg;
6126 sep = parse_operand (CURR_SLOT.opnd + 0);
6128 --num_outputs; /* force error */
6129 input_line_pointer = saved_input_pointer;
6131 CURR_SLOT.opnd[i].X_add_number = sof;
6132 CURR_SLOT.opnd[i + 1].X_add_number
6133 = sof - CURR_SLOT.opnd[i + 2].X_add_number;
6134 CURR_SLOT.opnd[i + 2] = CURR_SLOT.opnd[i + 3];
6138 highest_unmatched_operand = -4;
6139 curr_out_of_range_pos = -1;
6141 for (; idesc; idesc = get_next_opcode (idesc))
6143 if (num_outputs != idesc->num_outputs)
6144 continue; /* mismatch in # of outputs */
6145 if (highest_unmatched_operand < 0)
6146 highest_unmatched_operand |= 1;
6147 if (num_operands > NELEMS (idesc->operands)
6148 || (num_operands < NELEMS (idesc->operands)
6149 && idesc->operands[num_operands])
6150 || (num_operands > 0 && !idesc->operands[num_operands - 1]))
6151 continue; /* mismatch in number of arguments */
6152 if (highest_unmatched_operand < 0)
6153 highest_unmatched_operand |= 2;
6155 CURR_SLOT.num_fixups = 0;
6157 /* Try to match all operands. If we see an out-of-range operand,
6158 then continue trying to match the rest of the operands, since if
6159 the rest match, then this idesc will give the best error message. */
6161 out_of_range_pos = -1;
6162 for (i = 0; i < num_operands && idesc->operands[i]; ++i)
6164 result = operand_match (idesc, i, CURR_SLOT.opnd + i);
6165 if (result != OPERAND_MATCH)
6167 if (result != OPERAND_OUT_OF_RANGE)
6169 if (out_of_range_pos < 0)
6170 /* remember position of the first out-of-range operand: */
6171 out_of_range_pos = i;
6175 /* If we did not match all operands, or if at least one operand was
6176 out-of-range, then this idesc does not match. Keep track of which
6177 idesc matched the most operands before failing. If we have two
6178 idescs that failed at the same position, and one had an out-of-range
6179 operand, then prefer the out-of-range operand. Thus if we have
6180 "add r0=0x1000000,r1" we get an error saying the constant is out
6181 of range instead of an error saying that the constant should have been
6184 if (i != num_operands || out_of_range_pos >= 0)
6186 if (i > highest_unmatched_operand
6187 || (i == highest_unmatched_operand
6188 && out_of_range_pos > curr_out_of_range_pos))
6190 highest_unmatched_operand = i;
6191 if (out_of_range_pos >= 0)
6193 expected_operand = idesc->operands[out_of_range_pos];
6194 error_pos = out_of_range_pos;
6198 expected_operand = idesc->operands[i];
6201 curr_out_of_range_pos = out_of_range_pos;
6210 if (expected_operand)
6211 as_bad ("Operand %u of `%s' should be %s",
6212 error_pos + 1, mnemonic,
6213 elf64_ia64_operands[expected_operand].desc);
6214 else if (highest_unmatched_operand < 0 && !(highest_unmatched_operand & 1))
6215 as_bad ("Wrong number of output operands");
6216 else if (highest_unmatched_operand < 0 && !(highest_unmatched_operand & 2))
6217 as_bad ("Wrong number of input operands");
6219 as_bad ("Operand mismatch");
6223 /* Check that the instruction doesn't use
6224 - r0, f0, or f1 as output operands
6225 - the same predicate twice as output operands
6226 - r0 as address of a base update load or store
6227 - the same GR as output and address of a base update load
6228 - two even- or two odd-numbered FRs as output operands of a floating
6229 point parallel load.
6230 At most two (conflicting) output (or output-like) operands can exist,
6231 (floating point parallel loads have three outputs, but the base register,
6232 if updated, cannot conflict with the actual outputs). */
6234 for (i = 0; i < num_operands; ++i)
6239 switch (idesc->operands[i])
6244 if (i < num_outputs)
6246 if (CURR_SLOT.opnd[i].X_add_number == REG_GR)
6249 reg1 = CURR_SLOT.opnd[i].X_add_number;
6251 reg2 = CURR_SLOT.opnd[i].X_add_number;
6256 if (i < num_outputs)
6259 reg1 = CURR_SLOT.opnd[i].X_add_number;
6261 reg2 = CURR_SLOT.opnd[i].X_add_number;
6268 if (i < num_outputs)
6270 if (CURR_SLOT.opnd[i].X_add_number >= REG_FR
6271 && CURR_SLOT.opnd[i].X_add_number <= REG_FR + 1)
6274 regno = CURR_SLOT.opnd[i].X_add_number - REG_FR;
6277 reg1 = CURR_SLOT.opnd[i].X_add_number;
6279 reg2 = CURR_SLOT.opnd[i].X_add_number;
6283 if (idesc->flags & IA64_OPCODE_POSTINC)
6285 if (CURR_SLOT.opnd[i].X_add_number == REG_GR)
6288 reg1 = CURR_SLOT.opnd[i].X_add_number;
6290 reg2 = CURR_SLOT.opnd[i].X_add_number;
6301 as_warn ("Invalid use of `%c%d' as output operand", reg_class, regno);
6304 as_warn ("Invalid use of `r%d' as base update address operand", regno);
6310 if (reg1 >= REG_GR && reg1 <= REG_GR + 127)
6315 else if (reg1 >= REG_P && reg1 <= REG_P + 63)
6320 else if (reg1 >= REG_FR && reg1 <= REG_FR + 127)
6328 as_warn ("Invalid duplicate use of `%c%d'", reg_class, reg1);
6330 else if (((reg1 >= REG_FR && reg1 <= REG_FR + 31
6331 && reg2 >= REG_FR && reg2 <= REG_FR + 31)
6332 || (reg1 >= REG_FR + 32 && reg1 <= REG_FR + 127
6333 && reg2 >= REG_FR + 32 && reg2 <= REG_FR + 127))
6334 && ! ((reg1 ^ reg2) & 1))
6335 as_warn ("Invalid simultaneous use of `f%d' and `f%d'",
6336 reg1 - REG_FR, reg2 - REG_FR);
6337 else if ((reg1 >= REG_FR && reg1 <= REG_FR + 31
6338 && reg2 >= REG_FR + 32 && reg2 <= REG_FR + 127)
6339 || (reg1 >= REG_FR + 32 && reg1 <= REG_FR + 127
6340 && reg2 >= REG_FR && reg2 <= REG_FR + 31))
6341 as_warn ("Dangerous simultaneous use of `f%d' and `f%d'",
6342 reg1 - REG_FR, reg2 - REG_FR);
6347 build_insn (slot, insnp)
6351 const struct ia64_operand *odesc, *o2desc;
6352 struct ia64_opcode *idesc = slot->idesc;
6358 insn = idesc->opcode | slot->qp_regno;
6360 for (i = 0; i < NELEMS (idesc->operands) && idesc->operands[i]; ++i)
6362 if (slot->opnd[i].X_op == O_register
6363 || slot->opnd[i].X_op == O_constant
6364 || slot->opnd[i].X_op == O_index)
6365 val = slot->opnd[i].X_add_number;
6366 else if (slot->opnd[i].X_op == O_big)
6368 /* This must be the value 0x10000000000000000. */
6369 assert (idesc->operands[i] == IA64_OPND_IMM8M1U8);
6375 switch (idesc->operands[i])
6377 case IA64_OPND_IMMU64:
6378 *insnp++ = (val >> 22) & 0x1ffffffffffLL;
6379 insn |= (((val & 0x7f) << 13) | (((val >> 7) & 0x1ff) << 27)
6380 | (((val >> 16) & 0x1f) << 22) | (((val >> 21) & 0x1) << 21)
6381 | (((val >> 63) & 0x1) << 36));
6384 case IA64_OPND_IMMU62:
6385 val &= 0x3fffffffffffffffULL;
6386 if (val != slot->opnd[i].X_add_number)
6387 as_warn (_("Value truncated to 62 bits"));
6388 *insnp++ = (val >> 21) & 0x1ffffffffffLL;
6389 insn |= (((val & 0xfffff) << 6) | (((val >> 20) & 0x1) << 36));
6392 case IA64_OPND_TGT64:
6394 *insnp++ = ((val >> 20) & 0x7fffffffffLL) << 2;
6395 insn |= ((((val >> 59) & 0x1) << 36)
6396 | (((val >> 0) & 0xfffff) << 13));
6427 case IA64_OPND_R3_2:
6428 case IA64_OPND_CPUID_R3:
6429 case IA64_OPND_DBR_R3:
6430 case IA64_OPND_DTR_R3:
6431 case IA64_OPND_ITR_R3:
6432 case IA64_OPND_IBR_R3:
6434 case IA64_OPND_MSR_R3:
6435 case IA64_OPND_PKR_R3:
6436 case IA64_OPND_PMC_R3:
6437 case IA64_OPND_PMD_R3:
6438 case IA64_OPND_RR_R3:
6446 odesc = elf64_ia64_operands + idesc->operands[i];
6447 err = (*odesc->insert) (odesc, val, &insn);
6449 as_bad_where (slot->src_file, slot->src_line,
6450 "Bad operand value: %s", err);
6451 if (idesc->flags & IA64_OPCODE_PSEUDO)
6453 if ((idesc->flags & IA64_OPCODE_F2_EQ_F3)
6454 && odesc == elf64_ia64_operands + IA64_OPND_F3)
6456 o2desc = elf64_ia64_operands + IA64_OPND_F2;
6457 (*o2desc->insert) (o2desc, val, &insn);
6459 if ((idesc->flags & IA64_OPCODE_LEN_EQ_64MCNT)
6460 && (odesc == elf64_ia64_operands + IA64_OPND_CPOS6a
6461 || odesc == elf64_ia64_operands + IA64_OPND_POS6))
6463 o2desc = elf64_ia64_operands + IA64_OPND_LEN6;
6464 (*o2desc->insert) (o2desc, 64 - val, &insn);
6474 int manual_bundling_off = 0, manual_bundling = 0;
6475 enum ia64_unit required_unit, insn_unit = 0;
6476 enum ia64_insn_type type[3], insn_type;
6477 unsigned int template, orig_template;
6478 bfd_vma insn[3] = { -1, -1, -1 };
6479 struct ia64_opcode *idesc;
6480 int end_of_insn_group = 0, user_template = -1;
6481 int n, i, j, first, curr, last_slot;
6482 bfd_vma t0 = 0, t1 = 0;
6483 struct label_fix *lfix;
6484 struct insn_fix *ifix;
6490 first = (md.curr_slot + NUM_SLOTS - md.num_slots_in_use) % NUM_SLOTS;
6491 know (first >= 0 & first < NUM_SLOTS);
6492 n = MIN (3, md.num_slots_in_use);
6494 /* Determine template: user user_template if specified, best match
6497 if (md.slot[first].user_template >= 0)
6498 user_template = template = md.slot[first].user_template;
6501 /* Auto select appropriate template. */
6502 memset (type, 0, sizeof (type));
6504 for (i = 0; i < n; ++i)
6506 if (md.slot[curr].label_fixups && i != 0)
6508 type[i] = md.slot[curr].idesc->type;
6509 curr = (curr + 1) % NUM_SLOTS;
6511 template = best_template[type[0]][type[1]][type[2]];
6514 /* initialize instructions with appropriate nops: */
6515 for (i = 0; i < 3; ++i)
6516 insn[i] = nop[ia64_templ_desc[template].exec_unit[i]];
6520 /* Check to see if this bundle is at an offset that is a multiple of 16-bytes
6521 from the start of the frag. */
6522 addr_mod = frag_now_fix () & 15;
6523 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
6524 as_bad (_("instruction address is not a multiple of 16"));
6525 frag_now->insn_addr = addr_mod;
6526 frag_now->has_code = 1;
6528 /* now fill in slots with as many insns as possible: */
6530 idesc = md.slot[curr].idesc;
6531 end_of_insn_group = 0;
6533 for (i = 0; i < 3 && md.num_slots_in_use > 0; ++i)
6535 /* If we have unwind records, we may need to update some now. */
6536 unw_rec_list *ptr = md.slot[curr].unwind_record;
6537 unw_rec_list *end_ptr = NULL;
6541 /* Find the last prologue/body record in the list for the current
6542 insn, and set the slot number for all records up to that point.
6543 This needs to be done now, because prologue/body records refer to
6544 the current point, not the point after the instruction has been
6545 issued. This matters because there may have been nops emitted
6546 meanwhile. Any non-prologue non-body record followed by a
6547 prologue/body record must also refer to the current point. */
6548 unw_rec_list *last_ptr;
6550 for (j = 1; end_ptr == NULL && j < md.num_slots_in_use; ++j)
6551 end_ptr = md.slot[(curr + j) % NUM_SLOTS].unwind_record;
6552 for (last_ptr = NULL; ptr != end_ptr; ptr = ptr->next)
6553 if (ptr->r.type == prologue || ptr->r.type == prologue_gr
6554 || ptr->r.type == body)
6558 /* Make last_ptr point one after the last prologue/body
6560 last_ptr = last_ptr->next;
6561 for (ptr = md.slot[curr].unwind_record; ptr != last_ptr;
6564 ptr->slot_number = (unsigned long) f + i;
6565 ptr->slot_frag = frag_now;
6567 /* Remove the initialized records, so that we won't accidentally
6568 update them again if we insert a nop and continue. */
6569 md.slot[curr].unwind_record = last_ptr;
6573 manual_bundling_off = md.slot[curr].manual_bundling_off;
6574 if (md.slot[curr].manual_bundling_on)
6577 manual_bundling = 1;
6579 break; /* Need to start a new bundle. */
6582 /* If this instruction specifies a template, then it must be the first
6583 instruction of a bundle. */
6584 if (curr != first && md.slot[curr].user_template >= 0)
6587 if (idesc->flags & IA64_OPCODE_SLOT2)
6589 if (manual_bundling && !manual_bundling_off)
6591 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6592 "`%s' must be last in bundle", idesc->name);
6594 manual_bundling = -1; /* Suppress meaningless post-loop errors. */
6598 if (idesc->flags & IA64_OPCODE_LAST)
6601 unsigned int required_template;
6603 /* If we need a stop bit after an M slot, our only choice is
6604 template 5 (M;;MI). If we need a stop bit after a B
6605 slot, our only choice is to place it at the end of the
6606 bundle, because the only available templates are MIB,
6607 MBB, BBB, MMB, and MFB. We don't handle anything other
6608 than M and B slots because these are the only kind of
6609 instructions that can have the IA64_OPCODE_LAST bit set. */
6610 required_template = template;
6611 switch (idesc->type)
6615 required_template = 5;
6623 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6624 "Internal error: don't know how to force %s to end"
6625 "of instruction group", idesc->name);
6630 && (i > required_slot
6631 || (required_slot == 2 && !manual_bundling_off)
6632 || (user_template >= 0
6633 /* Changing from MMI to M;MI is OK. */
6634 && (template ^ required_template) > 1)))
6636 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6637 "`%s' must be last in instruction group",
6639 if (i < 2 && required_slot == 2 && !manual_bundling_off)
6640 manual_bundling = -1; /* Suppress meaningless post-loop errors. */
6642 if (required_slot < i)
6643 /* Can't fit this instruction. */
6647 if (required_template != template)
6649 /* If we switch the template, we need to reset the NOPs
6650 after slot i. The slot-types of the instructions ahead
6651 of i never change, so we don't need to worry about
6652 changing NOPs in front of this slot. */
6653 for (j = i; j < 3; ++j)
6654 insn[j] = nop[ia64_templ_desc[required_template].exec_unit[j]];
6656 template = required_template;
6658 if (curr != first && md.slot[curr].label_fixups)
6660 if (manual_bundling)
6662 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6663 "Label must be first in a bundle");
6664 manual_bundling = -1; /* Suppress meaningless post-loop errors. */
6666 /* This insn must go into the first slot of a bundle. */
6670 if (end_of_insn_group && md.num_slots_in_use >= 1)
6672 /* We need an instruction group boundary in the middle of a
6673 bundle. See if we can switch to an other template with
6674 an appropriate boundary. */
6676 orig_template = template;
6677 if (i == 1 && (user_template == 4
6678 || (user_template < 0
6679 && (ia64_templ_desc[template].exec_unit[0]
6683 end_of_insn_group = 0;
6685 else if (i == 2 && (user_template == 0
6686 || (user_template < 0
6687 && (ia64_templ_desc[template].exec_unit[1]
6689 /* This test makes sure we don't switch the template if
6690 the next instruction is one that needs to be first in
6691 an instruction group. Since all those instructions are
6692 in the M group, there is no way such an instruction can
6693 fit in this bundle even if we switch the template. The
6694 reason we have to check for this is that otherwise we
6695 may end up generating "MI;;I M.." which has the deadly
6696 effect that the second M instruction is no longer the
6697 first in the group! --davidm 99/12/16 */
6698 && (idesc->flags & IA64_OPCODE_FIRST) == 0)
6701 end_of_insn_group = 0;
6704 && user_template == 0
6705 && !(idesc->flags & IA64_OPCODE_FIRST))
6706 /* Use the next slot. */
6708 else if (curr != first)
6709 /* can't fit this insn */
6712 if (template != orig_template)
6713 /* if we switch the template, we need to reset the NOPs
6714 after slot i. The slot-types of the instructions ahead
6715 of i never change, so we don't need to worry about
6716 changing NOPs in front of this slot. */
6717 for (j = i; j < 3; ++j)
6718 insn[j] = nop[ia64_templ_desc[template].exec_unit[j]];
6720 required_unit = ia64_templ_desc[template].exec_unit[i];
6722 /* resolve dynamic opcodes such as "break", "hint", and "nop": */
6723 if (idesc->type == IA64_TYPE_DYN)
6725 enum ia64_opnd opnd1, opnd2;
6727 if ((strcmp (idesc->name, "nop") == 0)
6728 || (strcmp (idesc->name, "break") == 0))
6729 insn_unit = required_unit;
6730 else if (strcmp (idesc->name, "hint") == 0)
6732 insn_unit = required_unit;
6733 if (required_unit == IA64_UNIT_B)
6739 case hint_b_warning:
6740 as_warn ("hint in B unit may be treated as nop");
6743 /* When manual bundling is off and there is no
6744 user template, we choose a different unit so
6745 that hint won't go into the current slot. We
6746 will fill the current bundle with nops and
6747 try to put hint into the next bundle. */
6748 if (!manual_bundling && user_template < 0)
6749 insn_unit = IA64_UNIT_I;
6751 as_bad ("hint in B unit can't be used");
6756 else if (strcmp (idesc->name, "chk.s") == 0
6757 || strcmp (idesc->name, "mov") == 0)
6759 insn_unit = IA64_UNIT_M;
6760 if (required_unit == IA64_UNIT_I
6761 || (required_unit == IA64_UNIT_F && template == 6))
6762 insn_unit = IA64_UNIT_I;
6765 as_fatal ("emit_one_bundle: unexpected dynamic op");
6767 sprintf (mnemonic, "%s.%c", idesc->name, "?imbfxx"[insn_unit]);
6768 opnd1 = idesc->operands[0];
6769 opnd2 = idesc->operands[1];
6770 ia64_free_opcode (idesc);
6771 idesc = ia64_find_opcode (mnemonic);
6772 /* moves to/from ARs have collisions */
6773 if (opnd1 == IA64_OPND_AR3 || opnd2 == IA64_OPND_AR3)
6775 while (idesc != NULL
6776 && (idesc->operands[0] != opnd1
6777 || idesc->operands[1] != opnd2))
6778 idesc = get_next_opcode (idesc);
6780 md.slot[curr].idesc = idesc;
6784 insn_type = idesc->type;
6785 insn_unit = IA64_UNIT_NIL;
6789 if (required_unit == IA64_UNIT_I || required_unit == IA64_UNIT_M)
6790 insn_unit = required_unit;
6792 case IA64_TYPE_X: insn_unit = IA64_UNIT_L; break;
6793 case IA64_TYPE_I: insn_unit = IA64_UNIT_I; break;
6794 case IA64_TYPE_M: insn_unit = IA64_UNIT_M; break;
6795 case IA64_TYPE_B: insn_unit = IA64_UNIT_B; break;
6796 case IA64_TYPE_F: insn_unit = IA64_UNIT_F; break;
6801 if (insn_unit != required_unit)
6802 continue; /* Try next slot. */
6804 if (debug_type == DEBUG_DWARF2 || md.slot[curr].loc_directive_seen)
6806 bfd_vma addr = frag_now->fr_address + frag_now_fix () - 16 + i;
6808 md.slot[curr].loc_directive_seen = 0;
6809 dwarf2_gen_line_info (addr, &md.slot[curr].debug_line);
6812 build_insn (md.slot + curr, insn + i);
6814 ptr = md.slot[curr].unwind_record;
6817 /* Set slot numbers for all remaining unwind records belonging to the
6818 current insn. There can not be any prologue/body unwind records
6820 for (; ptr != end_ptr; ptr = ptr->next)
6822 ptr->slot_number = (unsigned long) f + i;
6823 ptr->slot_frag = frag_now;
6825 md.slot[curr].unwind_record = NULL;
6828 if (required_unit == IA64_UNIT_L)
6831 /* skip one slot for long/X-unit instructions */
6834 --md.num_slots_in_use;
6837 /* now is a good time to fix up the labels for this insn: */
6838 for (lfix = md.slot[curr].label_fixups; lfix; lfix = lfix->next)
6840 S_SET_VALUE (lfix->sym, frag_now_fix () - 16);
6841 symbol_set_frag (lfix->sym, frag_now);
6843 /* and fix up the tags also. */
6844 for (lfix = md.slot[curr].tag_fixups; lfix; lfix = lfix->next)
6846 S_SET_VALUE (lfix->sym, frag_now_fix () - 16 + i);
6847 symbol_set_frag (lfix->sym, frag_now);
6850 for (j = 0; j < md.slot[curr].num_fixups; ++j)
6852 ifix = md.slot[curr].fixup + j;
6853 fix = fix_new_exp (frag_now, frag_now_fix () - 16 + i, 8,
6854 &ifix->expr, ifix->is_pcrel, ifix->code);
6855 fix->tc_fix_data.opnd = ifix->opnd;
6856 fix->fx_plt = (fix->fx_r_type == BFD_RELOC_IA64_PLTOFF22);
6857 fix->fx_file = md.slot[curr].src_file;
6858 fix->fx_line = md.slot[curr].src_line;
6861 end_of_insn_group = md.slot[curr].end_of_insn_group;
6864 ia64_free_opcode (md.slot[curr].idesc);
6865 memset (md.slot + curr, 0, sizeof (md.slot[curr]));
6866 md.slot[curr].user_template = -1;
6868 if (manual_bundling_off)
6870 manual_bundling = 0;
6873 curr = (curr + 1) % NUM_SLOTS;
6874 idesc = md.slot[curr].idesc;
6876 if (manual_bundling > 0)
6878 if (md.num_slots_in_use > 0)
6881 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6882 "`%s' does not fit into bundle", idesc->name);
6883 else if (last_slot < 0)
6885 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6886 "`%s' does not fit into %s template",
6887 idesc->name, ia64_templ_desc[template].name);
6888 /* Drop first insn so we don't livelock. */
6889 --md.num_slots_in_use;
6890 know (curr == first);
6891 ia64_free_opcode (md.slot[curr].idesc);
6892 memset (md.slot + curr, 0, sizeof (md.slot[curr]));
6893 md.slot[curr].user_template = -1;
6901 else if (last_slot == 0)
6902 where = "slots 2 or 3";
6905 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6906 "`%s' can't go in %s of %s template",
6907 idesc->name, where, ia64_templ_desc[template].name);
6911 as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line,
6912 "Missing '}' at end of file");
6914 know (md.num_slots_in_use < NUM_SLOTS);
6916 t0 = end_of_insn_group | (template << 1) | (insn[0] << 5) | (insn[1] << 46);
6917 t1 = ((insn[1] >> 18) & 0x7fffff) | (insn[2] << 23);
6919 number_to_chars_littleendian (f + 0, t0, 8);
6920 number_to_chars_littleendian (f + 8, t1, 8);
6924 md_parse_option (c, arg)
6931 /* Switches from the Intel assembler. */
6933 if (strcmp (arg, "ilp64") == 0
6934 || strcmp (arg, "lp64") == 0
6935 || strcmp (arg, "p64") == 0)
6937 md.flags |= EF_IA_64_ABI64;
6939 else if (strcmp (arg, "ilp32") == 0)
6941 md.flags &= ~EF_IA_64_ABI64;
6943 else if (strcmp (arg, "le") == 0)
6945 md.flags &= ~EF_IA_64_BE;
6946 default_big_endian = 0;
6948 else if (strcmp (arg, "be") == 0)
6950 md.flags |= EF_IA_64_BE;
6951 default_big_endian = 1;
6953 else if (strncmp (arg, "unwind-check=", 13) == 0)
6956 if (strcmp (arg, "warning") == 0)
6957 md.unwind_check = unwind_check_warning;
6958 else if (strcmp (arg, "error") == 0)
6959 md.unwind_check = unwind_check_error;
6963 else if (strncmp (arg, "hint.b=", 7) == 0)
6966 if (strcmp (arg, "ok") == 0)
6967 md.hint_b = hint_b_ok;
6968 else if (strcmp (arg, "warning") == 0)
6969 md.hint_b = hint_b_warning;
6970 else if (strcmp (arg, "error") == 0)
6971 md.hint_b = hint_b_error;
6975 else if (strncmp (arg, "tune=", 5) == 0)
6978 if (strcmp (arg, "itanium1") == 0)
6980 else if (strcmp (arg, "itanium2") == 0)
6990 if (strcmp (arg, "so") == 0)
6992 /* Suppress signon message. */
6994 else if (strcmp (arg, "pi") == 0)
6996 /* Reject privileged instructions. FIXME */
6998 else if (strcmp (arg, "us") == 0)
7000 /* Allow union of signed and unsigned range. FIXME */
7002 else if (strcmp (arg, "close_fcalls") == 0)
7004 /* Do not resolve global function calls. */
7011 /* temp[="prefix"] Insert temporary labels into the object file
7012 symbol table prefixed by "prefix".
7013 Default prefix is ":temp:".
7018 /* indirect=<tgt> Assume unannotated indirect branches behavior
7019 according to <tgt> --
7020 exit: branch out from the current context (default)
7021 labels: all labels in context may be branch targets
7023 if (strncmp (arg, "indirect=", 9) != 0)
7028 /* -X conflicts with an ignored option, use -x instead */
7030 if (!arg || strcmp (arg, "explicit") == 0)
7032 /* set default mode to explicit */
7033 md.default_explicit_mode = 1;
7036 else if (strcmp (arg, "auto") == 0)
7038 md.default_explicit_mode = 0;
7040 else if (strcmp (arg, "none") == 0)
7044 else if (strcmp (arg, "debug") == 0)
7048 else if (strcmp (arg, "debugx") == 0)
7050 md.default_explicit_mode = 1;
7053 else if (strcmp (arg, "debugn") == 0)
7060 as_bad (_("Unrecognized option '-x%s'"), arg);
7065 /* nops Print nops statistics. */
7068 /* GNU specific switches for gcc. */
7069 case OPTION_MCONSTANT_GP:
7070 md.flags |= EF_IA_64_CONS_GP;
7073 case OPTION_MAUTO_PIC:
7074 md.flags |= EF_IA_64_NOFUNCDESC_CONS_GP;
7085 md_show_usage (stream)
7090 --mconstant-gp mark output file as using the constant-GP model\n\
7091 (sets ELF header flag EF_IA_64_CONS_GP)\n\
7092 --mauto-pic mark output file as using the constant-GP model\n\
7093 without function descriptors (sets ELF header flag\n\
7094 EF_IA_64_NOFUNCDESC_CONS_GP)\n\
7095 -milp32|-milp64|-mlp64|-mp64 select data model (default -mlp64)\n\
7096 -mle | -mbe select little- or big-endian byte order (default -mle)\n\
7097 -mtune=[itanium1|itanium2]\n\
7098 tune for a specific CPU (default -mtune=itanium2)\n\
7099 -munwind-check=[warning|error]\n\
7100 unwind directive check (default -munwind-check=warning)\n\
7101 -mhint.b=[ok|warning|error]\n\
7102 hint.b check (default -mhint.b=error)\n\
7103 -x | -xexplicit turn on dependency violation checking\n\
7104 -xauto automagically remove dependency violations (default)\n\
7105 -xnone turn off dependency violation checking\n\
7106 -xdebug debug dependency violation checker\n\
7107 -xdebugn debug dependency violation checker but turn off\n\
7108 dependency violation checking\n\
7109 -xdebugx debug dependency violation checker and turn on\n\
7110 dependency violation checking\n"),
7115 ia64_after_parse_args ()
7117 if (debug_type == DEBUG_STABS)
7118 as_fatal (_("--gstabs is not supported for ia64"));
7121 /* Return true if TYPE fits in TEMPL at SLOT. */
7124 match (int templ, int type, int slot)
7126 enum ia64_unit unit;
7129 unit = ia64_templ_desc[templ].exec_unit[slot];
7132 case IA64_TYPE_DYN: result = 1; break; /* for nop and break */
7134 result = (unit == IA64_UNIT_I || unit == IA64_UNIT_M);
7136 case IA64_TYPE_X: result = (unit == IA64_UNIT_L); break;
7137 case IA64_TYPE_I: result = (unit == IA64_UNIT_I); break;
7138 case IA64_TYPE_M: result = (unit == IA64_UNIT_M); break;
7139 case IA64_TYPE_B: result = (unit == IA64_UNIT_B); break;
7140 case IA64_TYPE_F: result = (unit == IA64_UNIT_F); break;
7141 default: result = 0; break;
7146 /* For Itanium 1, add a bit of extra goodness if a nop of type F or B would fit
7147 in TEMPL at SLOT. For Itanium 2, add a bit of extra goodness if a nop of
7148 type M or I would fit in TEMPL at SLOT. */
7151 extra_goodness (int templ, int slot)
7156 if (slot == 1 && match (templ, IA64_TYPE_F, slot))
7158 else if (slot == 2 && match (templ, IA64_TYPE_B, slot))
7164 if (match (templ, IA64_TYPE_M, slot)
7165 || match (templ, IA64_TYPE_I, slot))
7166 /* Favor M- and I-unit NOPs. We definitely want to avoid
7167 F-unit and B-unit may cause split-issue or less-than-optimal
7168 branch-prediction. */
7179 /* This function is called once, at assembler startup time. It sets
7180 up all the tables, etc. that the MD part of the assembler will need
7181 that can be determined before arguments are parsed. */
7185 int i, j, k, t, total, ar_base, cr_base, goodness, best, regnum, ok;
7190 md.explicit_mode = md.default_explicit_mode;
7192 bfd_set_section_alignment (stdoutput, text_section, 4);
7194 /* Make sure function pointers get initialized. */
7195 target_big_endian = -1;
7196 dot_byteorder (default_big_endian);
7198 alias_hash = hash_new ();
7199 alias_name_hash = hash_new ();
7200 secalias_hash = hash_new ();
7201 secalias_name_hash = hash_new ();
7203 pseudo_func[FUNC_DTP_MODULE].u.sym =
7204 symbol_new (".<dtpmod>", undefined_section, FUNC_DTP_MODULE,
7205 &zero_address_frag);
7207 pseudo_func[FUNC_DTP_RELATIVE].u.sym =
7208 symbol_new (".<dtprel>", undefined_section, FUNC_DTP_RELATIVE,
7209 &zero_address_frag);
7211 pseudo_func[FUNC_FPTR_RELATIVE].u.sym =
7212 symbol_new (".<fptr>", undefined_section, FUNC_FPTR_RELATIVE,
7213 &zero_address_frag);
7215 pseudo_func[FUNC_GP_RELATIVE].u.sym =
7216 symbol_new (".<gprel>", undefined_section, FUNC_GP_RELATIVE,
7217 &zero_address_frag);
7219 pseudo_func[FUNC_LT_RELATIVE].u.sym =
7220 symbol_new (".<ltoff>", undefined_section, FUNC_LT_RELATIVE,
7221 &zero_address_frag);
7223 pseudo_func[FUNC_LT_RELATIVE_X].u.sym =
7224 symbol_new (".<ltoffx>", undefined_section, FUNC_LT_RELATIVE_X,
7225 &zero_address_frag);
7227 pseudo_func[FUNC_PC_RELATIVE].u.sym =
7228 symbol_new (".<pcrel>", undefined_section, FUNC_PC_RELATIVE,
7229 &zero_address_frag);
7231 pseudo_func[FUNC_PLT_RELATIVE].u.sym =
7232 symbol_new (".<pltoff>", undefined_section, FUNC_PLT_RELATIVE,
7233 &zero_address_frag);
7235 pseudo_func[FUNC_SEC_RELATIVE].u.sym =
7236 symbol_new (".<secrel>", undefined_section, FUNC_SEC_RELATIVE,
7237 &zero_address_frag);
7239 pseudo_func[FUNC_SEG_RELATIVE].u.sym =
7240 symbol_new (".<segrel>", undefined_section, FUNC_SEG_RELATIVE,
7241 &zero_address_frag);
7243 pseudo_func[FUNC_TP_RELATIVE].u.sym =
7244 symbol_new (".<tprel>", undefined_section, FUNC_TP_RELATIVE,
7245 &zero_address_frag);
7247 pseudo_func[FUNC_LTV_RELATIVE].u.sym =
7248 symbol_new (".<ltv>", undefined_section, FUNC_LTV_RELATIVE,
7249 &zero_address_frag);
7251 pseudo_func[FUNC_LT_FPTR_RELATIVE].u.sym =
7252 symbol_new (".<ltoff.fptr>", undefined_section, FUNC_LT_FPTR_RELATIVE,
7253 &zero_address_frag);
7255 pseudo_func[FUNC_LT_DTP_MODULE].u.sym =
7256 symbol_new (".<ltoff.dtpmod>", undefined_section, FUNC_LT_DTP_MODULE,
7257 &zero_address_frag);
7259 pseudo_func[FUNC_LT_DTP_RELATIVE].u.sym =
7260 symbol_new (".<ltoff.dptrel>", undefined_section, FUNC_LT_DTP_RELATIVE,
7261 &zero_address_frag);
7263 pseudo_func[FUNC_LT_TP_RELATIVE].u.sym =
7264 symbol_new (".<ltoff.tprel>", undefined_section, FUNC_LT_TP_RELATIVE,
7265 &zero_address_frag);
7267 pseudo_func[FUNC_IPLT_RELOC].u.sym =
7268 symbol_new (".<iplt>", undefined_section, FUNC_IPLT_RELOC,
7269 &zero_address_frag);
7271 if (md.tune != itanium1)
7273 /* Convert MFI NOPs bundles into MMI NOPs bundles. */
7275 le_nop_stop[0] = 0x9;
7278 /* Compute the table of best templates. We compute goodness as a
7279 base 4 value, in which each match counts for 3. Match-failures
7280 result in NOPs and we use extra_goodness() to pick the execution
7281 units that are best suited for issuing the NOP. */
7282 for (i = 0; i < IA64_NUM_TYPES; ++i)
7283 for (j = 0; j < IA64_NUM_TYPES; ++j)
7284 for (k = 0; k < IA64_NUM_TYPES; ++k)
7287 for (t = 0; t < NELEMS (ia64_templ_desc); ++t)
7290 if (match (t, i, 0))
7292 if (match (t, j, 1))
7294 if ((t == 2 && j == IA64_TYPE_X) || match (t, k, 2))
7295 goodness = 3 + 3 + 3;
7297 goodness = 3 + 3 + extra_goodness (t, 2);
7299 else if (match (t, j, 2))
7300 goodness = 3 + 3 + extra_goodness (t, 1);
7304 goodness += extra_goodness (t, 1);
7305 goodness += extra_goodness (t, 2);
7308 else if (match (t, i, 1))
7310 if ((t == 2 && i == IA64_TYPE_X) || match (t, j, 2))
7313 goodness = 3 + extra_goodness (t, 2);
7315 else if (match (t, i, 2))
7316 goodness = 3 + extra_goodness (t, 1);
7318 if (goodness > best)
7321 best_template[i][j][k] = t;
7326 #ifdef DEBUG_TEMPLATES
7327 /* For debugging changes to the best_template calculations. We don't care
7328 about combinations with invalid instructions, so start the loops at 1. */
7329 for (i = 0; i < IA64_NUM_TYPES; ++i)
7330 for (j = 0; j < IA64_NUM_TYPES; ++j)
7331 for (k = 0; k < IA64_NUM_TYPES; ++k)
7333 char type_letter[IA64_NUM_TYPES] = { 'n', 'a', 'i', 'm', 'b', 'f',
7335 fprintf (stderr, "%c%c%c %s\n", type_letter[i], type_letter[j],
7337 ia64_templ_desc[best_template[i][j][k]].name);
7341 for (i = 0; i < NUM_SLOTS; ++i)
7342 md.slot[i].user_template = -1;
7344 md.pseudo_hash = hash_new ();
7345 for (i = 0; i < NELEMS (pseudo_opcode); ++i)
7347 err = hash_insert (md.pseudo_hash, pseudo_opcode[i].name,
7348 (void *) (pseudo_opcode + i));
7350 as_fatal ("ia64.md_begin: can't hash `%s': %s",
7351 pseudo_opcode[i].name, err);
7354 md.reg_hash = hash_new ();
7355 md.dynreg_hash = hash_new ();
7356 md.const_hash = hash_new ();
7357 md.entry_hash = hash_new ();
7359 /* general registers: */
7362 for (i = 0; i < total; ++i)
7364 sprintf (name, "r%d", i - REG_GR);
7365 md.regsym[i] = declare_register (name, i);
7368 /* floating point registers: */
7370 for (; i < total; ++i)
7372 sprintf (name, "f%d", i - REG_FR);
7373 md.regsym[i] = declare_register (name, i);
7376 /* application registers: */
7379 for (; i < total; ++i)
7381 sprintf (name, "ar%d", i - REG_AR);
7382 md.regsym[i] = declare_register (name, i);
7385 /* control registers: */
7388 for (; i < total; ++i)
7390 sprintf (name, "cr%d", i - REG_CR);
7391 md.regsym[i] = declare_register (name, i);
7394 /* predicate registers: */
7396 for (; i < total; ++i)
7398 sprintf (name, "p%d", i - REG_P);
7399 md.regsym[i] = declare_register (name, i);
7402 /* branch registers: */
7404 for (; i < total; ++i)
7406 sprintf (name, "b%d", i - REG_BR);
7407 md.regsym[i] = declare_register (name, i);
7410 md.regsym[REG_IP] = declare_register ("ip", REG_IP);
7411 md.regsym[REG_CFM] = declare_register ("cfm", REG_CFM);
7412 md.regsym[REG_PR] = declare_register ("pr", REG_PR);
7413 md.regsym[REG_PR_ROT] = declare_register ("pr.rot", REG_PR_ROT);
7414 md.regsym[REG_PSR] = declare_register ("psr", REG_PSR);
7415 md.regsym[REG_PSR_L] = declare_register ("psr.l", REG_PSR_L);
7416 md.regsym[REG_PSR_UM] = declare_register ("psr.um", REG_PSR_UM);
7418 for (i = 0; i < NELEMS (indirect_reg); ++i)
7420 regnum = indirect_reg[i].regnum;
7421 md.regsym[regnum] = declare_register (indirect_reg[i].name, regnum);
7424 /* define synonyms for application registers: */
7425 for (i = REG_AR; i < REG_AR + NELEMS (ar); ++i)
7426 md.regsym[i] = declare_register (ar[i - REG_AR].name,
7427 REG_AR + ar[i - REG_AR].regnum);
7429 /* define synonyms for control registers: */
7430 for (i = REG_CR; i < REG_CR + NELEMS (cr); ++i)
7431 md.regsym[i] = declare_register (cr[i - REG_CR].name,
7432 REG_CR + cr[i - REG_CR].regnum);
7434 declare_register ("gp", REG_GR + 1);
7435 declare_register ("sp", REG_GR + 12);
7436 declare_register ("rp", REG_BR + 0);
7438 /* pseudo-registers used to specify unwind info: */
7439 declare_register ("psp", REG_PSP);
7441 declare_register_set ("ret", 4, REG_GR + 8);
7442 declare_register_set ("farg", 8, REG_FR + 8);
7443 declare_register_set ("fret", 8, REG_FR + 8);
7445 for (i = 0; i < NELEMS (const_bits); ++i)
7447 err = hash_insert (md.const_hash, const_bits[i].name,
7448 (PTR) (const_bits + i));
7450 as_fatal ("Inserting \"%s\" into constant hash table failed: %s",
7454 /* Set the architecture and machine depending on defaults and command line
7456 if (md.flags & EF_IA_64_ABI64)
7457 ok = bfd_set_arch_mach (stdoutput, bfd_arch_ia64, bfd_mach_ia64_elf64);
7459 ok = bfd_set_arch_mach (stdoutput, bfd_arch_ia64, bfd_mach_ia64_elf32);
7462 as_warn (_("Could not set architecture and machine"));
7464 /* Set the pointer size and pointer shift size depending on md.flags */
7466 if (md.flags & EF_IA_64_ABI64)
7468 md.pointer_size = 8; /* pointers are 8 bytes */
7469 md.pointer_size_shift = 3; /* alignment is 8 bytes = 2^2 */
7473 md.pointer_size = 4; /* pointers are 4 bytes */
7474 md.pointer_size_shift = 2; /* alignment is 4 bytes = 2^2 */
7477 md.mem_offset.hint = 0;
7480 md.entry_labels = NULL;
7483 /* Set the default options in md. Cannot do this in md_begin because
7484 that is called after md_parse_option which is where we set the
7485 options in md based on command line options. */
7488 ia64_init (argc, argv)
7489 int argc ATTRIBUTE_UNUSED;
7490 char **argv ATTRIBUTE_UNUSED;
7492 md.flags = MD_FLAGS_DEFAULT;
7494 /* FIXME: We should change it to unwind_check_error someday. */
7495 md.unwind_check = unwind_check_warning;
7496 md.hint_b = hint_b_error;
7500 /* Return a string for the target object file format. */
7503 ia64_target_format ()
7505 if (OUTPUT_FLAVOR == bfd_target_elf_flavour)
7507 if (md.flags & EF_IA_64_BE)
7509 if (md.flags & EF_IA_64_ABI64)
7510 #if defined(TE_AIX50)
7511 return "elf64-ia64-aix-big";
7512 #elif defined(TE_HPUX)
7513 return "elf64-ia64-hpux-big";
7515 return "elf64-ia64-big";
7518 #if defined(TE_AIX50)
7519 return "elf32-ia64-aix-big";
7520 #elif defined(TE_HPUX)
7521 return "elf32-ia64-hpux-big";
7523 return "elf32-ia64-big";
7528 if (md.flags & EF_IA_64_ABI64)
7530 return "elf64-ia64-aix-little";
7532 return "elf64-ia64-little";
7536 return "elf32-ia64-aix-little";
7538 return "elf32-ia64-little";
7543 return "unknown-format";
7547 ia64_end_of_source ()
7549 /* terminate insn group upon reaching end of file: */
7550 insn_group_break (1, 0, 0);
7552 /* emits slots we haven't written yet: */
7553 ia64_flush_insns ();
7555 bfd_set_private_flags (stdoutput, md.flags);
7557 md.mem_offset.hint = 0;
7563 if (md.qp.X_op == O_register)
7564 as_bad ("qualifying predicate not followed by instruction");
7565 md.qp.X_op = O_absent;
7567 if (ignore_input ())
7570 if (input_line_pointer[0] == ';' && input_line_pointer[-1] == ';')
7572 if (md.detect_dv && !md.explicit_mode)
7579 as_warn (_("Explicit stops are ignored in auto mode"));
7583 insn_group_break (1, 0, 0);
7587 /* This is a hook for ia64_frob_label, so that it can distinguish tags from
7589 static int defining_tag = 0;
7592 ia64_unrecognized_line (ch)
7598 expression (&md.qp);
7599 if (*input_line_pointer++ != ')')
7601 as_bad ("Expected ')'");
7604 if (md.qp.X_op != O_register)
7606 as_bad ("Qualifying predicate expected");
7609 if (md.qp.X_add_number < REG_P || md.qp.X_add_number >= REG_P + 64)
7611 as_bad ("Predicate register expected");
7617 if (md.manual_bundling)
7618 as_warn ("Found '{' when manual bundling is already turned on");
7620 CURR_SLOT.manual_bundling_on = 1;
7621 md.manual_bundling = 1;
7623 /* Bundling is only acceptable in explicit mode
7624 or when in default automatic mode. */
7625 if (md.detect_dv && !md.explicit_mode)
7627 if (!md.mode_explicitly_set
7628 && !md.default_explicit_mode)
7631 as_warn (_("Found '{' after explicit switch to automatic mode"));
7636 if (!md.manual_bundling)
7637 as_warn ("Found '}' when manual bundling is off");
7639 PREV_SLOT.manual_bundling_off = 1;
7640 md.manual_bundling = 0;
7642 /* switch back to automatic mode, if applicable */
7645 && !md.mode_explicitly_set
7646 && !md.default_explicit_mode)
7649 /* Allow '{' to follow on the same line. We also allow ";;", but that
7650 happens automatically because ';' is an end of line marker. */
7652 if (input_line_pointer[0] == '{')
7654 input_line_pointer++;
7655 return ia64_unrecognized_line ('{');
7658 demand_empty_rest_of_line ();
7668 if (md.qp.X_op == O_register)
7670 as_bad ("Tag must come before qualifying predicate.");
7674 /* This implements just enough of read_a_source_file in read.c to
7675 recognize labels. */
7676 if (is_name_beginner (*input_line_pointer))
7678 s = input_line_pointer;
7679 c = get_symbol_end ();
7681 else if (LOCAL_LABELS_FB
7682 && ISDIGIT (*input_line_pointer))
7685 while (ISDIGIT (*input_line_pointer))
7686 temp = (temp * 10) + *input_line_pointer++ - '0';
7687 fb_label_instance_inc (temp);
7688 s = fb_label_name (temp, 0);
7689 c = *input_line_pointer;
7698 /* Put ':' back for error messages' sake. */
7699 *input_line_pointer++ = ':';
7700 as_bad ("Expected ':'");
7707 /* Put ':' back for error messages' sake. */
7708 *input_line_pointer++ = ':';
7709 if (*input_line_pointer++ != ']')
7711 as_bad ("Expected ']'");
7716 as_bad ("Tag name expected");
7726 /* Not a valid line. */
7731 ia64_frob_label (sym)
7734 struct label_fix *fix;
7736 /* Tags need special handling since they are not bundle breaks like
7740 fix = obstack_alloc (¬es, sizeof (*fix));
7742 fix->next = CURR_SLOT.tag_fixups;
7743 CURR_SLOT.tag_fixups = fix;
7748 if (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE)
7750 md.last_text_seg = now_seg;
7751 fix = obstack_alloc (¬es, sizeof (*fix));
7753 fix->next = CURR_SLOT.label_fixups;
7754 CURR_SLOT.label_fixups = fix;
7756 /* Keep track of how many code entry points we've seen. */
7757 if (md.path == md.maxpaths)
7760 md.entry_labels = (const char **)
7761 xrealloc ((void *) md.entry_labels,
7762 md.maxpaths * sizeof (char *));
7764 md.entry_labels[md.path++] = S_GET_NAME (sym);
7769 /* The HP-UX linker will give unresolved symbol errors for symbols
7770 that are declared but unused. This routine removes declared,
7771 unused symbols from an object. */
7773 ia64_frob_symbol (sym)
7776 if ((S_GET_SEGMENT (sym) == &bfd_und_section && ! symbol_used_p (sym) &&
7777 ELF_ST_VISIBILITY (S_GET_OTHER (sym)) == STV_DEFAULT)
7778 || (S_GET_SEGMENT (sym) == &bfd_abs_section
7779 && ! S_IS_EXTERNAL (sym)))
7786 ia64_flush_pending_output ()
7788 if (!md.keep_pending_output
7789 && bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE)
7791 /* ??? This causes many unnecessary stop bits to be emitted.
7792 Unfortunately, it isn't clear if it is safe to remove this. */
7793 insn_group_break (1, 0, 0);
7794 ia64_flush_insns ();
7798 /* Do ia64-specific expression optimization. All that's done here is
7799 to transform index expressions that are either due to the indexing
7800 of rotating registers or due to the indexing of indirect register
7803 ia64_optimize_expr (l, op, r)
7812 if (l->X_op == O_register && r->X_op == O_constant)
7814 num_regs = (l->X_add_number >> 16);
7815 if ((unsigned) r->X_add_number >= num_regs)
7818 as_bad ("No current frame");
7820 as_bad ("Index out of range 0..%u", num_regs - 1);
7821 r->X_add_number = 0;
7823 l->X_add_number = (l->X_add_number & 0xffff) + r->X_add_number;
7826 else if (l->X_op == O_register && r->X_op == O_register)
7828 if (l->X_add_number < IND_CPUID || l->X_add_number > IND_RR
7829 || l->X_add_number == IND_MEM)
7831 as_bad ("Indirect register set name expected");
7832 l->X_add_number = IND_CPUID;
7835 l->X_op_symbol = md.regsym[l->X_add_number];
7836 l->X_add_number = r->X_add_number;
7844 ia64_parse_name (name, e, nextcharP)
7849 struct const_desc *cdesc;
7850 struct dynreg *dr = 0;
7857 enum pseudo_type pseudo_type = PSEUDO_FUNC_NONE;
7859 /* Find what relocation pseudo-function we're dealing with. */
7860 for (idx = 0; idx < NELEMS (pseudo_func); ++idx)
7861 if (pseudo_func[idx].name
7862 && pseudo_func[idx].name[0] == name[1]
7863 && strcmp (pseudo_func[idx].name + 1, name + 2) == 0)
7865 pseudo_type = pseudo_func[idx].type;
7868 switch (pseudo_type)
7870 case PSEUDO_FUNC_RELOC:
7871 end = input_line_pointer;
7872 if (*nextcharP != '(')
7874 as_bad ("Expected '('");
7878 ++input_line_pointer;
7880 if (*input_line_pointer != ')')
7882 as_bad ("Missing ')'");
7886 ++input_line_pointer;
7887 if (e->X_op != O_symbol)
7889 if (e->X_op != O_pseudo_fixup)
7891 as_bad ("Not a symbolic expression");
7894 if (idx != FUNC_LT_RELATIVE)
7896 as_bad ("Illegal combination of relocation functions");
7899 switch (S_GET_VALUE (e->X_op_symbol))
7901 case FUNC_FPTR_RELATIVE:
7902 idx = FUNC_LT_FPTR_RELATIVE; break;
7903 case FUNC_DTP_MODULE:
7904 idx = FUNC_LT_DTP_MODULE; break;
7905 case FUNC_DTP_RELATIVE:
7906 idx = FUNC_LT_DTP_RELATIVE; break;
7907 case FUNC_TP_RELATIVE:
7908 idx = FUNC_LT_TP_RELATIVE; break;
7910 as_bad ("Illegal combination of relocation functions");
7914 /* Make sure gas doesn't get rid of local symbols that are used
7916 e->X_op = O_pseudo_fixup;
7917 e->X_op_symbol = pseudo_func[idx].u.sym;
7919 *nextcharP = *input_line_pointer;
7922 case PSEUDO_FUNC_CONST:
7923 e->X_op = O_constant;
7924 e->X_add_number = pseudo_func[idx].u.ival;
7927 case PSEUDO_FUNC_REG:
7928 e->X_op = O_register;
7929 e->X_add_number = pseudo_func[idx].u.ival;
7938 /* first see if NAME is a known register name: */
7939 sym = hash_find (md.reg_hash, name);
7942 e->X_op = O_register;
7943 e->X_add_number = S_GET_VALUE (sym);
7947 cdesc = hash_find (md.const_hash, name);
7950 e->X_op = O_constant;
7951 e->X_add_number = cdesc->value;
7955 /* check for inN, locN, or outN: */
7960 if (name[1] == 'n' && ISDIGIT (name[2]))
7968 if (name[1] == 'o' && name[2] == 'c' && ISDIGIT (name[3]))
7976 if (name[1] == 'u' && name[2] == 't' && ISDIGIT (name[3]))
7987 /* Ignore register numbers with leading zeroes, except zero itself. */
7988 if (dr && (name[idx] != '0' || name[idx + 1] == '\0'))
7990 unsigned long regnum;
7992 /* The name is inN, locN, or outN; parse the register number. */
7993 regnum = strtoul (name + idx, &end, 10);
7994 if (end > name + idx && *end == '\0' && regnum < 96)
7996 if (regnum >= dr->num_regs)
7999 as_bad ("No current frame");
8001 as_bad ("Register number out of range 0..%u",
8005 e->X_op = O_register;
8006 e->X_add_number = dr->base + regnum;
8011 end = alloca (strlen (name) + 1);
8013 name = ia64_canonicalize_symbol_name (end);
8014 if ((dr = hash_find (md.dynreg_hash, name)))
8016 /* We've got ourselves the name of a rotating register set.
8017 Store the base register number in the low 16 bits of
8018 X_add_number and the size of the register set in the top 16
8020 e->X_op = O_register;
8021 e->X_add_number = dr->base | (dr->num_regs << 16);
8027 /* Remove the '#' suffix that indicates a symbol as opposed to a register. */
8030 ia64_canonicalize_symbol_name (name)
8033 size_t len = strlen (name), full = len;
8035 while (len > 0 && name[len - 1] == '#')
8040 as_bad ("Standalone `#' is illegal");
8042 else if (len < full - 1)
8043 as_warn ("Redundant `#' suffix operators");
8048 /* Return true if idesc is a conditional branch instruction. This excludes
8049 the modulo scheduled branches, and br.ia. Mod-sched branches are excluded
8050 because they always read/write resources regardless of the value of the
8051 qualifying predicate. br.ia must always use p0, and hence is always
8052 taken. Thus this function returns true for branches which can fall
8053 through, and which use no resources if they do fall through. */
8056 is_conditional_branch (idesc)
8057 struct ia64_opcode *idesc;
8059 /* br is a conditional branch. Everything that starts with br. except
8060 br.ia, br.c{loop,top,exit}, and br.w{top,exit} is a conditional branch.
8061 Everything that starts with brl is a conditional branch. */
8062 return (idesc->name[0] == 'b' && idesc->name[1] == 'r'
8063 && (idesc->name[2] == '\0'
8064 || (idesc->name[2] == '.' && idesc->name[3] != 'i'
8065 && idesc->name[3] != 'c' && idesc->name[3] != 'w')
8066 || idesc->name[2] == 'l'
8067 /* br.cond, br.call, br.clr */
8068 || (idesc->name[2] == '.' && idesc->name[3] == 'c'
8069 && (idesc->name[4] == 'a' || idesc->name[4] == 'o'
8070 || (idesc->name[4] == 'l' && idesc->name[5] == 'r')))));
8073 /* Return whether the given opcode is a taken branch. If there's any doubt,
8077 is_taken_branch (idesc)
8078 struct ia64_opcode *idesc;
8080 return ((is_conditional_branch (idesc) && CURR_SLOT.qp_regno == 0)
8081 || strncmp (idesc->name, "br.ia", 5) == 0);
8084 /* Return whether the given opcode is an interruption or rfi. If there's any
8085 doubt, returns zero. */
8088 is_interruption_or_rfi (idesc)
8089 struct ia64_opcode *idesc;
8091 if (strcmp (idesc->name, "rfi") == 0)
8096 /* Returns the index of the given dependency in the opcode's list of chks, or
8097 -1 if there is no dependency. */
8100 depends_on (depind, idesc)
8102 struct ia64_opcode *idesc;
8105 const struct ia64_opcode_dependency *dep = idesc->dependencies;
8106 for (i = 0; i < dep->nchks; i++)
8108 if (depind == DEP (dep->chks[i]))
8114 /* Determine a set of specific resources used for a particular resource
8115 class. Returns the number of specific resources identified For those
8116 cases which are not determinable statically, the resource returned is
8119 Meanings of value in 'NOTE':
8120 1) only read/write when the register number is explicitly encoded in the
8122 2) only read CFM when accessing a rotating GR, FR, or PR. mov pr only
8123 accesses CFM when qualifying predicate is in the rotating region.
8124 3) general register value is used to specify an indirect register; not
8125 determinable statically.
8126 4) only read the given resource when bits 7:0 of the indirect index
8127 register value does not match the register number of the resource; not
8128 determinable statically.
8129 5) all rules are implementation specific.
8130 6) only when both the index specified by the reader and the index specified
8131 by the writer have the same value in bits 63:61; not determinable
8133 7) only access the specified resource when the corresponding mask bit is
8135 8) PSR.dfh is only read when these insns reference FR32-127. PSR.dfl is
8136 only read when these insns reference FR2-31
8137 9) PSR.mfl is only written when these insns write FR2-31. PSR.mfh is only
8138 written when these insns write FR32-127
8139 10) The PSR.bn bit is only accessed when one of GR16-31 is specified in the
8141 11) The target predicates are written independently of PR[qp], but source
8142 registers are only read if PR[qp] is true. Since the state of PR[qp]
8143 cannot statically be determined, all source registers are marked used.
8144 12) This insn only reads the specified predicate register when that
8145 register is the PR[qp].
8146 13) This reference to ld-c only applies to teh GR whose value is loaded
8147 with data returned from memory, not the post-incremented address register.
8148 14) The RSE resource includes the implementation-specific RSE internal
8149 state resources. At least one (and possibly more) of these resources are
8150 read by each instruction listed in IC:rse-readers. At least one (and
8151 possibly more) of these resources are written by each insn listed in
8153 15+16) Represents reserved instructions, which the assembler does not
8156 Memory resources (i.e. locations in memory) are *not* marked or tracked by
8157 this code; there are no dependency violations based on memory access.
8160 #define MAX_SPECS 256
8165 specify_resource (dep, idesc, type, specs, note, path)
8166 const struct ia64_dependency *dep;
8167 struct ia64_opcode *idesc;
8168 int type; /* is this a DV chk or a DV reg? */
8169 struct rsrc specs[MAX_SPECS]; /* returned specific resources */
8170 int note; /* resource note for this insn's usage */
8171 int path; /* which execution path to examine */
8178 if (dep->mode == IA64_DV_WAW
8179 || (dep->mode == IA64_DV_RAW && type == DV_REG)
8180 || (dep->mode == IA64_DV_WAR && type == DV_CHK))
8183 /* template for any resources we identify */
8184 tmpl.dependency = dep;
8186 tmpl.insn_srlz = tmpl.data_srlz = 0;
8187 tmpl.qp_regno = CURR_SLOT.qp_regno;
8188 tmpl.link_to_qp_branch = 1;
8189 tmpl.mem_offset.hint = 0;
8190 tmpl.mem_offset.offset = 0;
8191 tmpl.mem_offset.base = 0;
8194 tmpl.cmp_type = CMP_NONE;
8201 as_warn (_("Unhandled dependency %s for %s (%s), note %d"), \
8202 dep->name, idesc->name, (rsrc_write?"write":"read"), note)
8203 #define KNOWN(REG) (gr_values[REG].known && gr_values[REG].path >= path)
8205 /* we don't need to track these */
8206 if (dep->semantics == IA64_DVS_NONE)
8209 switch (dep->specifier)
8214 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3)
8216 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
8217 if (regno >= 0 && regno <= 7)
8219 specs[count] = tmpl;
8220 specs[count++].index = regno;
8226 for (i = 0; i < 8; i++)
8228 specs[count] = tmpl;
8229 specs[count++].index = i;
8238 case IA64_RS_AR_UNAT:
8239 /* This is a mov =AR or mov AR= instruction. */
8240 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3)
8242 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
8243 if (regno == AR_UNAT)
8245 specs[count++] = tmpl;
8250 /* This is a spill/fill, or other instruction that modifies the
8253 /* Unless we can determine the specific bits used, mark the whole
8254 thing; bits 8:3 of the memory address indicate the bit used in
8255 UNAT. The .mem.offset hint may be used to eliminate a small
8256 subset of conflicts. */
8257 specs[count] = tmpl;
8258 if (md.mem_offset.hint)
8261 fprintf (stderr, " Using hint for spill/fill\n");
8262 /* The index isn't actually used, just set it to something
8263 approximating the bit index. */
8264 specs[count].index = (md.mem_offset.offset >> 3) & 0x3F;
8265 specs[count].mem_offset.hint = 1;
8266 specs[count].mem_offset.offset = md.mem_offset.offset;
8267 specs[count++].mem_offset.base = md.mem_offset.base;
8271 specs[count++].specific = 0;
8279 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3)
8281 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
8282 if ((regno >= 8 && regno <= 15)
8283 || (regno >= 20 && regno <= 23)
8284 || (regno >= 31 && regno <= 39)
8285 || (regno >= 41 && regno <= 47)
8286 || (regno >= 67 && regno <= 111))
8288 specs[count] = tmpl;
8289 specs[count++].index = regno;
8302 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3)
8304 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
8305 if ((regno >= 48 && regno <= 63)
8306 || (regno >= 112 && regno <= 127))
8308 specs[count] = tmpl;
8309 specs[count++].index = regno;
8315 for (i = 48; i < 64; i++)
8317 specs[count] = tmpl;
8318 specs[count++].index = i;
8320 for (i = 112; i < 128; i++)
8322 specs[count] = tmpl;
8323 specs[count++].index = i;
8341 for (i = 0; i < idesc->num_outputs; i++)
8342 if (idesc->operands[i] == IA64_OPND_B1
8343 || idesc->operands[i] == IA64_OPND_B2)
8345 specs[count] = tmpl;
8346 specs[count++].index =
8347 CURR_SLOT.opnd[i].X_add_number - REG_BR;
8352 for (i = idesc->num_outputs; i < NELEMS (idesc->operands); i++)
8353 if (idesc->operands[i] == IA64_OPND_B1
8354 || idesc->operands[i] == IA64_OPND_B2)
8356 specs[count] = tmpl;
8357 specs[count++].index =
8358 CURR_SLOT.opnd[i].X_add_number - REG_BR;
8364 case IA64_RS_CPUID: /* four or more registers */
8367 if (idesc->operands[!rsrc_write] == IA64_OPND_CPUID_R3)
8369 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8370 if (regno >= 0 && regno < NELEMS (gr_values)
8373 specs[count] = tmpl;
8374 specs[count++].index = gr_values[regno].value & 0xFF;
8378 specs[count] = tmpl;
8379 specs[count++].specific = 0;
8389 case IA64_RS_DBR: /* four or more registers */
8392 if (idesc->operands[!rsrc_write] == IA64_OPND_DBR_R3)
8394 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8395 if (regno >= 0 && regno < NELEMS (gr_values)
8398 specs[count] = tmpl;
8399 specs[count++].index = gr_values[regno].value & 0xFF;
8403 specs[count] = tmpl;
8404 specs[count++].specific = 0;
8408 else if (note == 0 && !rsrc_write)
8410 specs[count] = tmpl;
8411 specs[count++].specific = 0;
8419 case IA64_RS_IBR: /* four or more registers */
8422 if (idesc->operands[!rsrc_write] == IA64_OPND_IBR_R3)
8424 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8425 if (regno >= 0 && regno < NELEMS (gr_values)
8428 specs[count] = tmpl;
8429 specs[count++].index = gr_values[regno].value & 0xFF;
8433 specs[count] = tmpl;
8434 specs[count++].specific = 0;
8447 /* These are implementation specific. Force all references to
8448 conflict with all other references. */
8449 specs[count] = tmpl;
8450 specs[count++].specific = 0;
8458 case IA64_RS_PKR: /* 16 or more registers */
8459 if (note == 3 || note == 4)
8461 if (idesc->operands[!rsrc_write] == IA64_OPND_PKR_R3)
8463 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8464 if (regno >= 0 && regno < NELEMS (gr_values)
8469 specs[count] = tmpl;
8470 specs[count++].index = gr_values[regno].value & 0xFF;
8473 for (i = 0; i < NELEMS (gr_values); i++)
8475 /* Uses all registers *except* the one in R3. */
8476 if ((unsigned)i != (gr_values[regno].value & 0xFF))
8478 specs[count] = tmpl;
8479 specs[count++].index = i;
8485 specs[count] = tmpl;
8486 specs[count++].specific = 0;
8493 specs[count] = tmpl;
8494 specs[count++].specific = 0;
8498 case IA64_RS_PMC: /* four or more registers */
8501 if (idesc->operands[!rsrc_write] == IA64_OPND_PMC_R3
8502 || (!rsrc_write && idesc->operands[1] == IA64_OPND_PMD_R3))
8505 int index = ((idesc->operands[1] == IA64_OPND_R3 && !rsrc_write)
8507 int regno = CURR_SLOT.opnd[index].X_add_number - REG_GR;
8508 if (regno >= 0 && regno < NELEMS (gr_values)
8511 specs[count] = tmpl;
8512 specs[count++].index = gr_values[regno].value & 0xFF;
8516 specs[count] = tmpl;
8517 specs[count++].specific = 0;
8527 case IA64_RS_PMD: /* four or more registers */
8530 if (idesc->operands[!rsrc_write] == IA64_OPND_PMD_R3)
8532 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8533 if (regno >= 0 && regno < NELEMS (gr_values)
8536 specs[count] = tmpl;
8537 specs[count++].index = gr_values[regno].value & 0xFF;
8541 specs[count] = tmpl;
8542 specs[count++].specific = 0;
8552 case IA64_RS_RR: /* eight registers */
8555 if (idesc->operands[!rsrc_write] == IA64_OPND_RR_R3)
8557 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR;
8558 if (regno >= 0 && regno < NELEMS (gr_values)
8561 specs[count] = tmpl;
8562 specs[count++].index = (gr_values[regno].value >> 61) & 0x7;
8566 specs[count] = tmpl;
8567 specs[count++].specific = 0;
8571 else if (note == 0 && !rsrc_write)
8573 specs[count] = tmpl;
8574 specs[count++].specific = 0;
8582 case IA64_RS_CR_IRR:
8585 /* handle mov-from-CR-IVR; it's a read that writes CR[IRR] */
8586 int regno = CURR_SLOT.opnd[1].X_add_number - REG_CR;
8588 && idesc->operands[1] == IA64_OPND_CR3
8591 for (i = 0; i < 4; i++)
8593 specs[count] = tmpl;
8594 specs[count++].index = CR_IRR0 + i;
8600 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR;
8601 if (idesc->operands[!rsrc_write] == IA64_OPND_CR3
8603 && regno <= CR_IRR3)
8605 specs[count] = tmpl;
8606 specs[count++].index = regno;
8615 case IA64_RS_CR_LRR:
8622 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR;
8623 if (idesc->operands[!rsrc_write] == IA64_OPND_CR3
8624 && (regno == CR_LRR0 || regno == CR_LRR1))
8626 specs[count] = tmpl;
8627 specs[count++].index = regno;
8635 if (idesc->operands[!rsrc_write] == IA64_OPND_CR3)
8637 specs[count] = tmpl;
8638 specs[count++].index =
8639 CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR;
8654 else if (rsrc_write)
8656 if (dep->specifier == IA64_RS_FRb
8657 && idesc->operands[0] == IA64_OPND_F1)
8659 specs[count] = tmpl;
8660 specs[count++].index = CURR_SLOT.opnd[0].X_add_number - REG_FR;
8665 for (i = idesc->num_outputs; i < NELEMS (idesc->operands); i++)
8667 if (idesc->operands[i] == IA64_OPND_F2
8668 || idesc->operands[i] == IA64_OPND_F3
8669 || idesc->operands[i] == IA64_OPND_F4)
8671 specs[count] = tmpl;
8672 specs[count++].index =
8673 CURR_SLOT.opnd[i].X_add_number - REG_FR;
8682 /* This reference applies only to the GR whose value is loaded with
8683 data returned from memory. */
8684 specs[count] = tmpl;
8685 specs[count++].index = CURR_SLOT.opnd[0].X_add_number - REG_GR;
8691 for (i = 0; i < idesc->num_outputs; i++)
8692 if (idesc->operands[i] == IA64_OPND_R1
8693 || idesc->operands[i] == IA64_OPND_R2
8694 || idesc->operands[i] == IA64_OPND_R3)
8696 specs[count] = tmpl;
8697 specs[count++].index =
8698 CURR_SLOT.opnd[i].X_add_number - REG_GR;
8700 if (idesc->flags & IA64_OPCODE_POSTINC)
8701 for (i = 0; i < NELEMS (idesc->operands); i++)
8702 if (idesc->operands[i] == IA64_OPND_MR3)
8704 specs[count] = tmpl;
8705 specs[count++].index =
8706 CURR_SLOT.opnd[i].X_add_number - REG_GR;
8711 /* Look for anything that reads a GR. */
8712 for (i = 0; i < NELEMS (idesc->operands); i++)
8714 if (idesc->operands[i] == IA64_OPND_MR3
8715 || idesc->operands[i] == IA64_OPND_CPUID_R3
8716 || idesc->operands[i] == IA64_OPND_DBR_R3
8717 || idesc->operands[i] == IA64_OPND_IBR_R3
8718 || idesc->operands[i] == IA64_OPND_MSR_R3
8719 || idesc->operands[i] == IA64_OPND_PKR_R3
8720 || idesc->operands[i] == IA64_OPND_PMC_R3
8721 || idesc->operands[i] == IA64_OPND_PMD_R3
8722 || idesc->operands[i] == IA64_OPND_RR_R3
8723 || ((i >= idesc->num_outputs)
8724 && (idesc->operands[i] == IA64_OPND_R1
8725 || idesc->operands[i] == IA64_OPND_R2
8726 || idesc->operands[i] == IA64_OPND_R3
8727 /* addl source register. */
8728 || idesc->operands[i] == IA64_OPND_R3_2)))
8730 specs[count] = tmpl;
8731 specs[count++].index =
8732 CURR_SLOT.opnd[i].X_add_number - REG_GR;
8743 /* This is the same as IA64_RS_PRr, except that the register range is
8744 from 1 - 15, and there are no rotating register reads/writes here. */
8748 for (i = 1; i < 16; i++)
8750 specs[count] = tmpl;
8751 specs[count++].index = i;
8757 /* Mark only those registers indicated by the mask. */
8760 mask = CURR_SLOT.opnd[2].X_add_number;
8761 for (i = 1; i < 16; i++)
8762 if (mask & ((valueT) 1 << i))
8764 specs[count] = tmpl;
8765 specs[count++].index = i;
8773 else if (note == 11) /* note 11 implies note 1 as well */
8777 for (i = 0; i < idesc->num_outputs; i++)
8779 if (idesc->operands[i] == IA64_OPND_P1
8780 || idesc->operands[i] == IA64_OPND_P2)
8782 int regno = CURR_SLOT.opnd[i].X_add_number - REG_P;
8783 if (regno >= 1 && regno < 16)
8785 specs[count] = tmpl;
8786 specs[count++].index = regno;
8796 else if (note == 12)
8798 if (CURR_SLOT.qp_regno >= 1 && CURR_SLOT.qp_regno < 16)
8800 specs[count] = tmpl;
8801 specs[count++].index = CURR_SLOT.qp_regno;
8808 int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P;
8809 int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P;
8810 int or_andcm = strstr (idesc->name, "or.andcm") != NULL;
8811 int and_orcm = strstr (idesc->name, "and.orcm") != NULL;
8813 if ((idesc->operands[0] == IA64_OPND_P1
8814 || idesc->operands[0] == IA64_OPND_P2)
8815 && p1 >= 1 && p1 < 16)
8817 specs[count] = tmpl;
8818 specs[count].cmp_type =
8819 (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE));
8820 specs[count++].index = p1;
8822 if ((idesc->operands[1] == IA64_OPND_P1
8823 || idesc->operands[1] == IA64_OPND_P2)
8824 && p2 >= 1 && p2 < 16)
8826 specs[count] = tmpl;
8827 specs[count].cmp_type =
8828 (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE));
8829 specs[count++].index = p2;
8834 if (CURR_SLOT.qp_regno >= 1 && CURR_SLOT.qp_regno < 16)
8836 specs[count] = tmpl;
8837 specs[count++].index = CURR_SLOT.qp_regno;
8839 if (idesc->operands[1] == IA64_OPND_PR)
8841 for (i = 1; i < 16; i++)
8843 specs[count] = tmpl;
8844 specs[count++].index = i;
8855 /* This is the general case for PRs. IA64_RS_PR and IA64_RS_PR63 are
8856 simplified cases of this. */
8860 for (i = 16; i < 63; i++)
8862 specs[count] = tmpl;
8863 specs[count++].index = i;
8869 /* Mark only those registers indicated by the mask. */
8871 && idesc->operands[0] == IA64_OPND_PR)
8873 mask = CURR_SLOT.opnd[2].X_add_number;
8874 if (mask & ((valueT) 1 << 16))
8875 for (i = 16; i < 63; i++)
8877 specs[count] = tmpl;
8878 specs[count++].index = i;
8882 && idesc->operands[0] == IA64_OPND_PR_ROT)
8884 for (i = 16; i < 63; i++)
8886 specs[count] = tmpl;
8887 specs[count++].index = i;
8895 else if (note == 11) /* note 11 implies note 1 as well */
8899 for (i = 0; i < idesc->num_outputs; i++)
8901 if (idesc->operands[i] == IA64_OPND_P1
8902 || idesc->operands[i] == IA64_OPND_P2)
8904 int regno = CURR_SLOT.opnd[i].X_add_number - REG_P;
8905 if (regno >= 16 && regno < 63)
8907 specs[count] = tmpl;
8908 specs[count++].index = regno;
8918 else if (note == 12)
8920 if (CURR_SLOT.qp_regno >= 16 && CURR_SLOT.qp_regno < 63)
8922 specs[count] = tmpl;
8923 specs[count++].index = CURR_SLOT.qp_regno;
8930 int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P;
8931 int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P;
8932 int or_andcm = strstr (idesc->name, "or.andcm") != NULL;
8933 int and_orcm = strstr (idesc->name, "and.orcm") != NULL;
8935 if ((idesc->operands[0] == IA64_OPND_P1
8936 || idesc->operands[0] == IA64_OPND_P2)
8937 && p1 >= 16 && p1 < 63)
8939 specs[count] = tmpl;
8940 specs[count].cmp_type =
8941 (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE));
8942 specs[count++].index = p1;
8944 if ((idesc->operands[1] == IA64_OPND_P1
8945 || idesc->operands[1] == IA64_OPND_P2)
8946 && p2 >= 16 && p2 < 63)
8948 specs[count] = tmpl;
8949 specs[count].cmp_type =
8950 (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE));
8951 specs[count++].index = p2;
8956 if (CURR_SLOT.qp_regno >= 16 && CURR_SLOT.qp_regno < 63)
8958 specs[count] = tmpl;
8959 specs[count++].index = CURR_SLOT.qp_regno;
8961 if (idesc->operands[1] == IA64_OPND_PR)
8963 for (i = 16; i < 63; i++)
8965 specs[count] = tmpl;
8966 specs[count++].index = i;
8978 /* Verify that the instruction is using the PSR bit indicated in
8982 if (idesc->operands[!rsrc_write] == IA64_OPND_PSR_UM)
8984 if (dep->regindex < 6)
8986 specs[count++] = tmpl;
8989 else if (idesc->operands[!rsrc_write] == IA64_OPND_PSR)
8991 if (dep->regindex < 32
8992 || dep->regindex == 35
8993 || dep->regindex == 36
8994 || (!rsrc_write && dep->regindex == PSR_CPL))
8996 specs[count++] = tmpl;
8999 else if (idesc->operands[!rsrc_write] == IA64_OPND_PSR_L)
9001 if (dep->regindex < 32
9002 || dep->regindex == 35
9003 || dep->regindex == 36
9004 || (rsrc_write && dep->regindex == PSR_CPL))
9006 specs[count++] = tmpl;
9011 /* Several PSR bits have very specific dependencies. */
9012 switch (dep->regindex)
9015 specs[count++] = tmpl;
9020 specs[count++] = tmpl;
9024 /* Only certain CR accesses use PSR.ic */
9025 if (idesc->operands[0] == IA64_OPND_CR3
9026 || idesc->operands[1] == IA64_OPND_CR3)
9029 ((idesc->operands[0] == IA64_OPND_CR3)
9032 CURR_SLOT.opnd[index].X_add_number - REG_CR;
9047 specs[count++] = tmpl;
9056 specs[count++] = tmpl;
9060 /* Only some AR accesses use cpl */
9061 if (idesc->operands[0] == IA64_OPND_AR3
9062 || idesc->operands[1] == IA64_OPND_AR3)
9065 ((idesc->operands[0] == IA64_OPND_AR3)
9068 CURR_SLOT.opnd[index].X_add_number - REG_AR;
9075 && regno <= AR_K7))))
9077 specs[count++] = tmpl;
9082 specs[count++] = tmpl;
9092 if (idesc->operands[0] == IA64_OPND_IMMU24)
9094 mask = CURR_SLOT.opnd[0].X_add_number;
9100 if (mask & ((valueT) 1 << dep->regindex))
9102 specs[count++] = tmpl;
9107 int min = dep->regindex == PSR_DFL ? 2 : 32;
9108 int max = dep->regindex == PSR_DFL ? 31 : 127;
9109 /* dfh is read on FR32-127; dfl is read on FR2-31 */
9110 for (i = 0; i < NELEMS (idesc->operands); i++)
9112 if (idesc->operands[i] == IA64_OPND_F1
9113 || idesc->operands[i] == IA64_OPND_F2
9114 || idesc->operands[i] == IA64_OPND_F3
9115 || idesc->operands[i] == IA64_OPND_F4)
9117 int reg = CURR_SLOT.opnd[i].X_add_number - REG_FR;
9118 if (reg >= min && reg <= max)
9120 specs[count++] = tmpl;
9127 int min = dep->regindex == PSR_MFL ? 2 : 32;
9128 int max = dep->regindex == PSR_MFL ? 31 : 127;
9129 /* mfh is read on writes to FR32-127; mfl is read on writes to
9131 for (i = 0; i < idesc->num_outputs; i++)
9133 if (idesc->operands[i] == IA64_OPND_F1)
9135 int reg = CURR_SLOT.opnd[i].X_add_number - REG_FR;
9136 if (reg >= min && reg <= max)
9138 specs[count++] = tmpl;
9143 else if (note == 10)
9145 for (i = 0; i < NELEMS (idesc->operands); i++)
9147 if (idesc->operands[i] == IA64_OPND_R1
9148 || idesc->operands[i] == IA64_OPND_R2
9149 || idesc->operands[i] == IA64_OPND_R3)
9151 int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR;
9152 if (regno >= 16 && regno <= 31)
9154 specs[count++] = tmpl;
9165 case IA64_RS_AR_FPSR:
9166 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3)
9168 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
9169 if (regno == AR_FPSR)
9171 specs[count++] = tmpl;
9176 specs[count++] = tmpl;
9181 /* Handle all AR[REG] resources */
9182 if (note == 0 || note == 1)
9184 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR;
9185 if (idesc->operands[!rsrc_write] == IA64_OPND_AR3
9186 && regno == dep->regindex)
9188 specs[count++] = tmpl;
9190 /* other AR[REG] resources may be affected by AR accesses */
9191 else if (idesc->operands[0] == IA64_OPND_AR3)
9194 regno = CURR_SLOT.opnd[0].X_add_number - REG_AR;
9195 switch (dep->regindex)
9201 if (regno == AR_BSPSTORE)
9203 specs[count++] = tmpl;
9207 (regno == AR_BSPSTORE
9208 || regno == AR_RNAT))
9210 specs[count++] = tmpl;
9215 else if (idesc->operands[1] == IA64_OPND_AR3)
9218 regno = CURR_SLOT.opnd[1].X_add_number - REG_AR;
9219 switch (dep->regindex)
9224 if (regno == AR_BSPSTORE || regno == AR_RNAT)
9226 specs[count++] = tmpl;
9233 specs[count++] = tmpl;
9243 /* Handle all CR[REG] resources */
9244 if (note == 0 || note == 1)
9246 if (idesc->operands[!rsrc_write] == IA64_OPND_CR3)
9248 int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR;
9249 if (regno == dep->regindex)
9251 specs[count++] = tmpl;
9253 else if (!rsrc_write)
9255 /* Reads from CR[IVR] affect other resources. */
9256 if (regno == CR_IVR)
9258 if ((dep->regindex >= CR_IRR0
9259 && dep->regindex <= CR_IRR3)
9260 || dep->regindex == CR_TPR)
9262 specs[count++] = tmpl;
9269 specs[count++] = tmpl;
9278 case IA64_RS_INSERVICE:
9279 /* look for write of EOI (67) or read of IVR (65) */
9280 if ((idesc->operands[0] == IA64_OPND_CR3
9281 && CURR_SLOT.opnd[0].X_add_number - REG_CR == CR_EOI)
9282 || (idesc->operands[1] == IA64_OPND_CR3
9283 && CURR_SLOT.opnd[1].X_add_number - REG_CR == CR_IVR))
9285 specs[count++] = tmpl;
9292 specs[count++] = tmpl;
9303 specs[count++] = tmpl;
9307 /* Check if any of the registers accessed are in the rotating region.
9308 mov to/from pr accesses CFM only when qp_regno is in the rotating
9310 for (i = 0; i < NELEMS (idesc->operands); i++)
9312 if (idesc->operands[i] == IA64_OPND_R1
9313 || idesc->operands[i] == IA64_OPND_R2
9314 || idesc->operands[i] == IA64_OPND_R3)
9316 int num = CURR_SLOT.opnd[i].X_add_number - REG_GR;
9317 /* Assumes that md.rot.num_regs is always valid */
9318 if (md.rot.num_regs > 0
9320 && num < 31 + md.rot.num_regs)
9322 specs[count] = tmpl;
9323 specs[count++].specific = 0;
9326 else if (idesc->operands[i] == IA64_OPND_F1
9327 || idesc->operands[i] == IA64_OPND_F2
9328 || idesc->operands[i] == IA64_OPND_F3
9329 || idesc->operands[i] == IA64_OPND_F4)
9331 int num = CURR_SLOT.opnd[i].X_add_number - REG_FR;
9334 specs[count] = tmpl;
9335 specs[count++].specific = 0;
9338 else if (idesc->operands[i] == IA64_OPND_P1
9339 || idesc->operands[i] == IA64_OPND_P2)
9341 int num = CURR_SLOT.opnd[i].X_add_number - REG_P;
9344 specs[count] = tmpl;
9345 specs[count++].specific = 0;
9349 if (CURR_SLOT.qp_regno > 15)
9351 specs[count] = tmpl;
9352 specs[count++].specific = 0;
9357 /* This is the same as IA64_RS_PRr, except simplified to account for
9358 the fact that there is only one register. */
9362 specs[count++] = tmpl;
9367 if (idesc->operands[2] == IA64_OPND_IMM17)
9368 mask = CURR_SLOT.opnd[2].X_add_number;
9369 if (mask & ((valueT) 1 << 63))
9370 specs[count++] = tmpl;
9372 else if (note == 11)
9374 if ((idesc->operands[0] == IA64_OPND_P1
9375 && CURR_SLOT.opnd[0].X_add_number - REG_P == 63)
9376 || (idesc->operands[1] == IA64_OPND_P2
9377 && CURR_SLOT.opnd[1].X_add_number - REG_P == 63))
9379 specs[count++] = tmpl;
9382 else if (note == 12)
9384 if (CURR_SLOT.qp_regno == 63)
9386 specs[count++] = tmpl;
9393 int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P;
9394 int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P;
9395 int or_andcm = strstr (idesc->name, "or.andcm") != NULL;
9396 int and_orcm = strstr (idesc->name, "and.orcm") != NULL;
9399 && (idesc->operands[0] == IA64_OPND_P1
9400 || idesc->operands[0] == IA64_OPND_P2))
9402 specs[count] = tmpl;
9403 specs[count++].cmp_type =
9404 (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE));
9407 && (idesc->operands[1] == IA64_OPND_P1
9408 || idesc->operands[1] == IA64_OPND_P2))
9410 specs[count] = tmpl;
9411 specs[count++].cmp_type =
9412 (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE));
9417 if (CURR_SLOT.qp_regno == 63)
9419 specs[count++] = tmpl;
9430 /* FIXME we can identify some individual RSE written resources, but RSE
9431 read resources have not yet been completely identified, so for now
9432 treat RSE as a single resource */
9433 if (strncmp (idesc->name, "mov", 3) == 0)
9437 if (idesc->operands[0] == IA64_OPND_AR3
9438 && CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_BSPSTORE)
9440 specs[count++] = tmpl;
9445 if (idesc->operands[0] == IA64_OPND_AR3)
9447 if (CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_BSPSTORE
9448 || CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_RNAT)
9450 specs[count++] = tmpl;
9453 else if (idesc->operands[1] == IA64_OPND_AR3)
9455 if (CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_BSP
9456 || CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_BSPSTORE
9457 || CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_RNAT)
9459 specs[count++] = tmpl;
9466 specs[count++] = tmpl;
9471 /* FIXME -- do any of these need to be non-specific? */
9472 specs[count++] = tmpl;
9476 as_bad (_("Unrecognized dependency specifier %d\n"), dep->specifier);
9483 /* Clear branch flags on marked resources. This breaks the link between the
9484 QP of the marking instruction and a subsequent branch on the same QP. */
9487 clear_qp_branch_flag (mask)
9491 for (i = 0; i < regdepslen; i++)
9493 valueT bit = ((valueT) 1 << regdeps[i].qp_regno);
9494 if ((bit & mask) != 0)
9496 regdeps[i].link_to_qp_branch = 0;
9501 /* MASK contains 2 and only 2 PRs which are mutually exclusive. Remove
9502 any mutexes which contain one of the PRs and create new ones when
9506 update_qp_mutex (valueT mask)
9512 while (i < qp_mutexeslen)
9514 if ((qp_mutexes[i].prmask & mask) != 0)
9516 /* If it destroys and creates the same mutex, do nothing. */
9517 if (qp_mutexes[i].prmask == mask
9518 && qp_mutexes[i].path == md.path)
9529 fprintf (stderr, " Clearing mutex relation");
9530 print_prmask (qp_mutexes[i].prmask);
9531 fprintf (stderr, "\n");
9534 /* Deal with the old mutex with more than 3+ PRs only if
9535 the new mutex on the same execution path with it.
9537 FIXME: The 3+ mutex support is incomplete.
9538 dot_pred_rel () may be a better place to fix it. */
9539 if (qp_mutexes[i].path == md.path)
9541 /* If it is a proper subset of the mutex, create a
9544 && (qp_mutexes[i].prmask & mask) == mask)
9547 qp_mutexes[i].prmask &= ~mask;
9548 if (qp_mutexes[i].prmask & (qp_mutexes[i].prmask - 1))
9550 /* Modify the mutex if there are more than one
9558 /* Remove the mutex. */
9559 qp_mutexes[i] = qp_mutexes[--qp_mutexeslen];
9567 add_qp_mutex (mask);
9572 /* Remove any mutexes which contain any of the PRs indicated in the mask.
9574 Any changes to a PR clears the mutex relations which include that PR. */
9577 clear_qp_mutex (mask)
9583 while (i < qp_mutexeslen)
9585 if ((qp_mutexes[i].prmask & mask) != 0)
9589 fprintf (stderr, " Clearing mutex relation");
9590 print_prmask (qp_mutexes[i].prmask);
9591 fprintf (stderr, "\n");
9593 qp_mutexes[i] = qp_mutexes[--qp_mutexeslen];
9600 /* Clear implies relations which contain PRs in the given masks.
9601 P1_MASK indicates the source of the implies relation, while P2_MASK
9602 indicates the implied PR. */
9605 clear_qp_implies (p1_mask, p2_mask)
9612 while (i < qp_implieslen)
9614 if ((((valueT) 1 << qp_implies[i].p1) & p1_mask) != 0
9615 || (((valueT) 1 << qp_implies[i].p2) & p2_mask) != 0)
9618 fprintf (stderr, "Clearing implied relation PR%d->PR%d\n",
9619 qp_implies[i].p1, qp_implies[i].p2);
9620 qp_implies[i] = qp_implies[--qp_implieslen];
9627 /* Add the PRs specified to the list of implied relations. */
9630 add_qp_imply (p1, p2)
9637 /* p0 is not meaningful here. */
9638 if (p1 == 0 || p2 == 0)
9644 /* If it exists already, ignore it. */
9645 for (i = 0; i < qp_implieslen; i++)
9647 if (qp_implies[i].p1 == p1
9648 && qp_implies[i].p2 == p2
9649 && qp_implies[i].path == md.path
9650 && !qp_implies[i].p2_branched)
9654 if (qp_implieslen == qp_impliestotlen)
9656 qp_impliestotlen += 20;
9657 qp_implies = (struct qp_imply *)
9658 xrealloc ((void *) qp_implies,
9659 qp_impliestotlen * sizeof (struct qp_imply));
9662 fprintf (stderr, " Registering PR%d implies PR%d\n", p1, p2);
9663 qp_implies[qp_implieslen].p1 = p1;
9664 qp_implies[qp_implieslen].p2 = p2;
9665 qp_implies[qp_implieslen].path = md.path;
9666 qp_implies[qp_implieslen++].p2_branched = 0;
9668 /* Add in the implied transitive relations; for everything that p2 implies,
9669 make p1 imply that, too; for everything that implies p1, make it imply p2
9671 for (i = 0; i < qp_implieslen; i++)
9673 if (qp_implies[i].p1 == p2)
9674 add_qp_imply (p1, qp_implies[i].p2);
9675 if (qp_implies[i].p2 == p1)
9676 add_qp_imply (qp_implies[i].p1, p2);
9678 /* Add in mutex relations implied by this implies relation; for each mutex
9679 relation containing p2, duplicate it and replace p2 with p1. */
9680 bit = (valueT) 1 << p1;
9681 mask = (valueT) 1 << p2;
9682 for (i = 0; i < qp_mutexeslen; i++)
9684 if (qp_mutexes[i].prmask & mask)
9685 add_qp_mutex ((qp_mutexes[i].prmask & ~mask) | bit);
9689 /* Add the PRs specified in the mask to the mutex list; this means that only
9690 one of the PRs can be true at any time. PR0 should never be included in
9700 if (qp_mutexeslen == qp_mutexestotlen)
9702 qp_mutexestotlen += 20;
9703 qp_mutexes = (struct qpmutex *)
9704 xrealloc ((void *) qp_mutexes,
9705 qp_mutexestotlen * sizeof (struct qpmutex));
9709 fprintf (stderr, " Registering mutex on");
9710 print_prmask (mask);
9711 fprintf (stderr, "\n");
9713 qp_mutexes[qp_mutexeslen].path = md.path;
9714 qp_mutexes[qp_mutexeslen++].prmask = mask;
9718 has_suffix_p (name, suffix)
9722 size_t namelen = strlen (name);
9723 size_t sufflen = strlen (suffix);
9725 if (namelen <= sufflen)
9727 return strcmp (name + namelen - sufflen, suffix) == 0;
9731 clear_register_values ()
9735 fprintf (stderr, " Clearing register values\n");
9736 for (i = 1; i < NELEMS (gr_values); i++)
9737 gr_values[i].known = 0;
9740 /* Keep track of register values/changes which affect DV tracking.
9742 optimization note: should add a flag to classes of insns where otherwise we
9743 have to examine a group of strings to identify them. */
9746 note_register_values (idesc)
9747 struct ia64_opcode *idesc;
9749 valueT qp_changemask = 0;
9752 /* Invalidate values for registers being written to. */
9753 for (i = 0; i < idesc->num_outputs; i++)
9755 if (idesc->operands[i] == IA64_OPND_R1
9756 || idesc->operands[i] == IA64_OPND_R2
9757 || idesc->operands[i] == IA64_OPND_R3)
9759 int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR;
9760 if (regno > 0 && regno < NELEMS (gr_values))
9761 gr_values[regno].known = 0;
9763 else if (idesc->operands[i] == IA64_OPND_R3_2)
9765 int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR;
9766 if (regno > 0 && regno < 4)
9767 gr_values[regno].known = 0;
9769 else if (idesc->operands[i] == IA64_OPND_P1
9770 || idesc->operands[i] == IA64_OPND_P2)
9772 int regno = CURR_SLOT.opnd[i].X_add_number - REG_P;
9773 qp_changemask |= (valueT) 1 << regno;
9775 else if (idesc->operands[i] == IA64_OPND_PR)
9777 if (idesc->operands[2] & (valueT) 0x10000)
9778 qp_changemask = ~(valueT) 0x1FFFF | idesc->operands[2];
9780 qp_changemask = idesc->operands[2];
9783 else if (idesc->operands[i] == IA64_OPND_PR_ROT)
9785 if (idesc->operands[1] & ((valueT) 1 << 43))
9786 qp_changemask = -((valueT) 1 << 44) | idesc->operands[1];
9788 qp_changemask = idesc->operands[1];
9789 qp_changemask &= ~(valueT) 0xFFFF;
9794 /* Always clear qp branch flags on any PR change. */
9795 /* FIXME there may be exceptions for certain compares. */
9796 clear_qp_branch_flag (qp_changemask);
9798 /* Invalidate rotating registers on insns which affect RRBs in CFM. */
9799 if (idesc->flags & IA64_OPCODE_MOD_RRBS)
9801 qp_changemask |= ~(valueT) 0xFFFF;
9802 if (strcmp (idesc->name, "clrrrb.pr") != 0)
9804 for (i = 32; i < 32 + md.rot.num_regs; i++)
9805 gr_values[i].known = 0;
9807 clear_qp_mutex (qp_changemask);
9808 clear_qp_implies (qp_changemask, qp_changemask);
9810 /* After a call, all register values are undefined, except those marked
9812 else if (strncmp (idesc->name, "br.call", 6) == 0
9813 || strncmp (idesc->name, "brl.call", 7) == 0)
9815 /* FIXME keep GR values which are marked as "safe_across_calls" */
9816 clear_register_values ();
9817 clear_qp_mutex (~qp_safe_across_calls);
9818 clear_qp_implies (~qp_safe_across_calls, ~qp_safe_across_calls);
9819 clear_qp_branch_flag (~qp_safe_across_calls);
9821 else if (is_interruption_or_rfi (idesc)
9822 || is_taken_branch (idesc))
9824 clear_register_values ();
9825 clear_qp_mutex (~(valueT) 0);
9826 clear_qp_implies (~(valueT) 0, ~(valueT) 0);
9828 /* Look for mutex and implies relations. */
9829 else if ((idesc->operands[0] == IA64_OPND_P1
9830 || idesc->operands[0] == IA64_OPND_P2)
9831 && (idesc->operands[1] == IA64_OPND_P1
9832 || idesc->operands[1] == IA64_OPND_P2))
9834 int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P;
9835 int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P;
9836 valueT p1mask = (p1 != 0) ? (valueT) 1 << p1 : 0;
9837 valueT p2mask = (p2 != 0) ? (valueT) 1 << p2 : 0;
9839 /* If both PRs are PR0, we can't really do anything. */
9840 if (p1 == 0 && p2 == 0)
9843 fprintf (stderr, " Ignoring PRs due to inclusion of p0\n");
9845 /* In general, clear mutexes and implies which include P1 or P2,
9846 with the following exceptions. */
9847 else if (has_suffix_p (idesc->name, ".or.andcm")
9848 || has_suffix_p (idesc->name, ".and.orcm"))
9850 clear_qp_implies (p2mask, p1mask);
9852 else if (has_suffix_p (idesc->name, ".andcm")
9853 || has_suffix_p (idesc->name, ".and"))
9855 clear_qp_implies (0, p1mask | p2mask);
9857 else if (has_suffix_p (idesc->name, ".orcm")
9858 || has_suffix_p (idesc->name, ".or"))
9860 clear_qp_mutex (p1mask | p2mask);
9861 clear_qp_implies (p1mask | p2mask, 0);
9867 clear_qp_implies (p1mask | p2mask, p1mask | p2mask);
9869 /* If one of the PRs is PR0, we call clear_qp_mutex. */
9870 if (p1 == 0 || p2 == 0)
9871 clear_qp_mutex (p1mask | p2mask);
9873 added = update_qp_mutex (p1mask | p2mask);
9875 if (CURR_SLOT.qp_regno == 0
9876 || has_suffix_p (idesc->name, ".unc"))
9878 if (added == 0 && p1 && p2)
9879 add_qp_mutex (p1mask | p2mask);
9880 if (CURR_SLOT.qp_regno != 0)
9883 add_qp_imply (p1, CURR_SLOT.qp_regno);
9885 add_qp_imply (p2, CURR_SLOT.qp_regno);
9890 /* Look for mov imm insns into GRs. */
9891 else if (idesc->operands[0] == IA64_OPND_R1
9892 && (idesc->operands[1] == IA64_OPND_IMM22
9893 || idesc->operands[1] == IA64_OPND_IMMU64)
9894 && CURR_SLOT.opnd[1].X_op == O_constant
9895 && (strcmp (idesc->name, "mov") == 0
9896 || strcmp (idesc->name, "movl") == 0))
9898 int regno = CURR_SLOT.opnd[0].X_add_number - REG_GR;
9899 if (regno > 0 && regno < NELEMS (gr_values))
9901 gr_values[regno].known = 1;
9902 gr_values[regno].value = CURR_SLOT.opnd[1].X_add_number;
9903 gr_values[regno].path = md.path;
9906 fprintf (stderr, " Know gr%d = ", regno);
9907 fprintf_vma (stderr, gr_values[regno].value);
9908 fputs ("\n", stderr);
9912 /* Look for dep.z imm insns. */
9913 else if (idesc->operands[0] == IA64_OPND_R1
9914 && idesc->operands[1] == IA64_OPND_IMM8
9915 && strcmp (idesc->name, "dep.z") == 0)
9917 int regno = CURR_SLOT.opnd[0].X_add_number - REG_GR;
9918 if (regno > 0 && regno < NELEMS (gr_values))
9920 valueT value = CURR_SLOT.opnd[1].X_add_number;
9922 if (CURR_SLOT.opnd[3].X_add_number < 64)
9923 value &= ((valueT)1 << CURR_SLOT.opnd[3].X_add_number) - 1;
9924 value <<= CURR_SLOT.opnd[2].X_add_number;
9925 gr_values[regno].known = 1;
9926 gr_values[regno].value = value;
9927 gr_values[regno].path = md.path;
9930 fprintf (stderr, " Know gr%d = ", regno);
9931 fprintf_vma (stderr, gr_values[regno].value);
9932 fputs ("\n", stderr);
9938 clear_qp_mutex (qp_changemask);
9939 clear_qp_implies (qp_changemask, qp_changemask);
9943 /* Return whether the given predicate registers are currently mutex. */
9946 qp_mutex (p1, p2, path)
9956 mask = ((valueT) 1 << p1) | (valueT) 1 << p2;
9957 for (i = 0; i < qp_mutexeslen; i++)
9959 if (qp_mutexes[i].path >= path
9960 && (qp_mutexes[i].prmask & mask) == mask)
9967 /* Return whether the given resource is in the given insn's list of chks
9968 Return 1 if the conflict is absolutely determined, 2 if it's a potential
9972 resources_match (rs, idesc, note, qp_regno, path)
9974 struct ia64_opcode *idesc;
9979 struct rsrc specs[MAX_SPECS];
9982 /* If the marked resource's qp_regno and the given qp_regno are mutex,
9983 we don't need to check. One exception is note 11, which indicates that
9984 target predicates are written regardless of PR[qp]. */
9985 if (qp_mutex (rs->qp_regno, qp_regno, path)
9989 count = specify_resource (rs->dependency, idesc, DV_CHK, specs, note, path);
9992 /* UNAT checking is a bit more specific than other resources */
9993 if (rs->dependency->specifier == IA64_RS_AR_UNAT
9994 && specs[count].mem_offset.hint
9995 && rs->mem_offset.hint)
9997 if (rs->mem_offset.base == specs[count].mem_offset.base)
9999 if (((rs->mem_offset.offset >> 3) & 0x3F) ==
10000 ((specs[count].mem_offset.offset >> 3) & 0x3F))
10007 /* Skip apparent PR write conflicts where both writes are an AND or both
10008 writes are an OR. */
10009 if (rs->dependency->specifier == IA64_RS_PR
10010 || rs->dependency->specifier == IA64_RS_PRr
10011 || rs->dependency->specifier == IA64_RS_PR63)
10013 if (specs[count].cmp_type != CMP_NONE
10014 && specs[count].cmp_type == rs->cmp_type)
10017 fprintf (stderr, " %s on parallel compare allowed (PR%d)\n",
10018 dv_mode[rs->dependency->mode],
10019 rs->dependency->specifier != IA64_RS_PR63 ?
10020 specs[count].index : 63);
10025 " %s on parallel compare conflict %s vs %s on PR%d\n",
10026 dv_mode[rs->dependency->mode],
10027 dv_cmp_type[rs->cmp_type],
10028 dv_cmp_type[specs[count].cmp_type],
10029 rs->dependency->specifier != IA64_RS_PR63 ?
10030 specs[count].index : 63);
10034 /* If either resource is not specific, conservatively assume a conflict
10036 if (!specs[count].specific || !rs->specific)
10038 else if (specs[count].index == rs->index)
10045 /* Indicate an instruction group break; if INSERT_STOP is non-zero, then
10046 insert a stop to create the break. Update all resource dependencies
10047 appropriately. If QP_REGNO is non-zero, only apply the break to resources
10048 which use the same QP_REGNO and have the link_to_qp_branch flag set.
10049 If SAVE_CURRENT is non-zero, don't affect resources marked by the current
10053 insn_group_break (insert_stop, qp_regno, save_current)
10060 if (insert_stop && md.num_slots_in_use > 0)
10061 PREV_SLOT.end_of_insn_group = 1;
10065 fprintf (stderr, " Insn group break%s",
10066 (insert_stop ? " (w/stop)" : ""));
10068 fprintf (stderr, " effective for QP=%d", qp_regno);
10069 fprintf (stderr, "\n");
10073 while (i < regdepslen)
10075 const struct ia64_dependency *dep = regdeps[i].dependency;
10078 && regdeps[i].qp_regno != qp_regno)
10085 && CURR_SLOT.src_file == regdeps[i].file
10086 && CURR_SLOT.src_line == regdeps[i].line)
10092 /* clear dependencies which are automatically cleared by a stop, or
10093 those that have reached the appropriate state of insn serialization */
10094 if (dep->semantics == IA64_DVS_IMPLIED
10095 || dep->semantics == IA64_DVS_IMPLIEDF
10096 || regdeps[i].insn_srlz == STATE_SRLZ)
10098 print_dependency ("Removing", i);
10099 regdeps[i] = regdeps[--regdepslen];
10103 if (dep->semantics == IA64_DVS_DATA
10104 || dep->semantics == IA64_DVS_INSTR
10105 || dep->semantics == IA64_DVS_SPECIFIC)
10107 if (regdeps[i].insn_srlz == STATE_NONE)
10108 regdeps[i].insn_srlz = STATE_STOP;
10109 if (regdeps[i].data_srlz == STATE_NONE)
10110 regdeps[i].data_srlz = STATE_STOP;
10117 /* Add the given resource usage spec to the list of active dependencies. */
10120 mark_resource (idesc, dep, spec, depind, path)
10121 struct ia64_opcode *idesc ATTRIBUTE_UNUSED;
10122 const struct ia64_dependency *dep ATTRIBUTE_UNUSED;
10127 if (regdepslen == regdepstotlen)
10129 regdepstotlen += 20;
10130 regdeps = (struct rsrc *)
10131 xrealloc ((void *) regdeps,
10132 regdepstotlen * sizeof (struct rsrc));
10135 regdeps[regdepslen] = *spec;
10136 regdeps[regdepslen].depind = depind;
10137 regdeps[regdepslen].path = path;
10138 regdeps[regdepslen].file = CURR_SLOT.src_file;
10139 regdeps[regdepslen].line = CURR_SLOT.src_line;
10141 print_dependency ("Adding", regdepslen);
10147 print_dependency (action, depind)
10148 const char *action;
10153 fprintf (stderr, " %s %s '%s'",
10154 action, dv_mode[(regdeps[depind].dependency)->mode],
10155 (regdeps[depind].dependency)->name);
10156 if (regdeps[depind].specific && regdeps[depind].index >= 0)
10157 fprintf (stderr, " (%d)", regdeps[depind].index);
10158 if (regdeps[depind].mem_offset.hint)
10160 fputs (" ", stderr);
10161 fprintf_vma (stderr, regdeps[depind].mem_offset.base);
10162 fputs ("+", stderr);
10163 fprintf_vma (stderr, regdeps[depind].mem_offset.offset);
10165 fprintf (stderr, "\n");
10170 instruction_serialization ()
10174 fprintf (stderr, " Instruction serialization\n");
10175 for (i = 0; i < regdepslen; i++)
10176 if (regdeps[i].insn_srlz == STATE_STOP)
10177 regdeps[i].insn_srlz = STATE_SRLZ;
10181 data_serialization ()
10185 fprintf (stderr, " Data serialization\n");
10186 while (i < regdepslen)
10188 if (regdeps[i].data_srlz == STATE_STOP
10189 /* Note: as of 991210, all "other" dependencies are cleared by a
10190 data serialization. This might change with new tables */
10191 || (regdeps[i].dependency)->semantics == IA64_DVS_OTHER)
10193 print_dependency ("Removing", i);
10194 regdeps[i] = regdeps[--regdepslen];
10201 /* Insert stops and serializations as needed to avoid DVs. */
10204 remove_marked_resource (rs)
10207 switch (rs->dependency->semantics)
10209 case IA64_DVS_SPECIFIC:
10211 fprintf (stderr, "Implementation-specific, assume worst case...\n");
10212 /* ...fall through... */
10213 case IA64_DVS_INSTR:
10215 fprintf (stderr, "Inserting instr serialization\n");
10216 if (rs->insn_srlz < STATE_STOP)
10217 insn_group_break (1, 0, 0);
10218 if (rs->insn_srlz < STATE_SRLZ)
10220 struct slot oldslot = CURR_SLOT;
10221 /* Manually jam a srlz.i insn into the stream */
10222 memset (&CURR_SLOT, 0, sizeof (CURR_SLOT));
10223 CURR_SLOT.user_template = -1;
10224 CURR_SLOT.idesc = ia64_find_opcode ("srlz.i");
10225 instruction_serialization ();
10226 md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS;
10227 if (++md.num_slots_in_use >= NUM_SLOTS)
10228 emit_one_bundle ();
10229 CURR_SLOT = oldslot;
10231 insn_group_break (1, 0, 0);
10233 case IA64_DVS_OTHER: /* as of rev2 (991220) of the DV tables, all
10234 "other" types of DV are eliminated
10235 by a data serialization */
10236 case IA64_DVS_DATA:
10238 fprintf (stderr, "Inserting data serialization\n");
10239 if (rs->data_srlz < STATE_STOP)
10240 insn_group_break (1, 0, 0);
10242 struct slot oldslot = CURR_SLOT;
10243 /* Manually jam a srlz.d insn into the stream */
10244 memset (&CURR_SLOT, 0, sizeof (CURR_SLOT));
10245 CURR_SLOT.user_template = -1;
10246 CURR_SLOT.idesc = ia64_find_opcode ("srlz.d");
10247 data_serialization ();
10248 md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS;
10249 if (++md.num_slots_in_use >= NUM_SLOTS)
10250 emit_one_bundle ();
10251 CURR_SLOT = oldslot;
10254 case IA64_DVS_IMPLIED:
10255 case IA64_DVS_IMPLIEDF:
10257 fprintf (stderr, "Inserting stop\n");
10258 insn_group_break (1, 0, 0);
10265 /* Check the resources used by the given opcode against the current dependency
10268 The check is run once for each execution path encountered. In this case,
10269 a unique execution path is the sequence of instructions following a code
10270 entry point, e.g. the following has three execution paths, one starting
10271 at L0, one at L1, and one at L2.
10280 check_dependencies (idesc)
10281 struct ia64_opcode *idesc;
10283 const struct ia64_opcode_dependency *opdeps = idesc->dependencies;
10287 /* Note that the number of marked resources may change within the
10288 loop if in auto mode. */
10290 while (i < regdepslen)
10292 struct rsrc *rs = ®deps[i];
10293 const struct ia64_dependency *dep = rs->dependency;
10296 int start_over = 0;
10298 if (dep->semantics == IA64_DVS_NONE
10299 || (chkind = depends_on (rs->depind, idesc)) == -1)
10305 note = NOTE (opdeps->chks[chkind]);
10307 /* Check this resource against each execution path seen thus far. */
10308 for (path = 0; path <= md.path; path++)
10312 /* If the dependency wasn't on the path being checked, ignore it. */
10313 if (rs->path < path)
10316 /* If the QP for this insn implies a QP which has branched, don't
10317 bother checking. Ed. NOTE: I don't think this check is terribly
10318 useful; what's the point of generating code which will only be
10319 reached if its QP is zero?
10320 This code was specifically inserted to handle the following code,
10321 based on notes from Intel's DV checking code, where p1 implies p2.
10327 if (CURR_SLOT.qp_regno != 0)
10331 for (implies = 0; implies < qp_implieslen; implies++)
10333 if (qp_implies[implies].path >= path
10334 && qp_implies[implies].p1 == CURR_SLOT.qp_regno
10335 && qp_implies[implies].p2_branched)
10345 if ((matchtype = resources_match (rs, idesc, note,
10346 CURR_SLOT.qp_regno, path)) != 0)
10349 char pathmsg[256] = "";
10350 char indexmsg[256] = "";
10351 int certain = (matchtype == 1 && CURR_SLOT.qp_regno == 0);
10354 sprintf (pathmsg, " when entry is at label '%s'",
10355 md.entry_labels[path - 1]);
10356 if (matchtype == 1 && rs->index >= 0)
10357 sprintf (indexmsg, ", specific resource number is %d",
10359 sprintf (msg, "Use of '%s' %s %s dependency '%s' (%s)%s%s",
10361 (certain ? "violates" : "may violate"),
10362 dv_mode[dep->mode], dep->name,
10363 dv_sem[dep->semantics],
10364 pathmsg, indexmsg);
10366 if (md.explicit_mode)
10368 as_warn ("%s", msg);
10369 if (path < md.path)
10370 as_warn (_("Only the first path encountering the conflict "
10372 as_warn_where (rs->file, rs->line,
10373 _("This is the location of the "
10374 "conflicting usage"));
10375 /* Don't bother checking other paths, to avoid duplicating
10376 the same warning */
10382 fprintf (stderr, "%s @ %s:%d\n", msg, rs->file, rs->line);
10384 remove_marked_resource (rs);
10386 /* since the set of dependencies has changed, start over */
10387 /* FIXME -- since we're removing dvs as we go, we
10388 probably don't really need to start over... */
10401 /* Register new dependencies based on the given opcode. */
10404 mark_resources (idesc)
10405 struct ia64_opcode *idesc;
10408 const struct ia64_opcode_dependency *opdeps = idesc->dependencies;
10409 int add_only_qp_reads = 0;
10411 /* A conditional branch only uses its resources if it is taken; if it is
10412 taken, we stop following that path. The other branch types effectively
10413 *always* write their resources. If it's not taken, register only QP
10415 if (is_conditional_branch (idesc) || is_interruption_or_rfi (idesc))
10417 add_only_qp_reads = 1;
10421 fprintf (stderr, "Registering '%s' resource usage\n", idesc->name);
10423 for (i = 0; i < opdeps->nregs; i++)
10425 const struct ia64_dependency *dep;
10426 struct rsrc specs[MAX_SPECS];
10431 dep = ia64_find_dependency (opdeps->regs[i]);
10432 note = NOTE (opdeps->regs[i]);
10434 if (add_only_qp_reads
10435 && !(dep->mode == IA64_DV_WAR
10436 && (dep->specifier == IA64_RS_PR
10437 || dep->specifier == IA64_RS_PRr
10438 || dep->specifier == IA64_RS_PR63)))
10441 count = specify_resource (dep, idesc, DV_REG, specs, note, md.path);
10443 while (count-- > 0)
10445 mark_resource (idesc, dep, &specs[count],
10446 DEP (opdeps->regs[i]), md.path);
10449 /* The execution path may affect register values, which may in turn
10450 affect which indirect-access resources are accessed. */
10451 switch (dep->specifier)
10455 case IA64_RS_CPUID:
10463 for (path = 0; path < md.path; path++)
10465 count = specify_resource (dep, idesc, DV_REG, specs, note, path);
10466 while (count-- > 0)
10467 mark_resource (idesc, dep, &specs[count],
10468 DEP (opdeps->regs[i]), path);
10475 /* Remove dependencies when they no longer apply. */
10478 update_dependencies (idesc)
10479 struct ia64_opcode *idesc;
10483 if (strcmp (idesc->name, "srlz.i") == 0)
10485 instruction_serialization ();
10487 else if (strcmp (idesc->name, "srlz.d") == 0)
10489 data_serialization ();
10491 else if (is_interruption_or_rfi (idesc)
10492 || is_taken_branch (idesc))
10494 /* Although technically the taken branch doesn't clear dependencies
10495 which require a srlz.[id], we don't follow the branch; the next
10496 instruction is assumed to start with a clean slate. */
10500 else if (is_conditional_branch (idesc)
10501 && CURR_SLOT.qp_regno != 0)
10503 int is_call = strstr (idesc->name, ".call") != NULL;
10505 for (i = 0; i < qp_implieslen; i++)
10507 /* If the conditional branch's predicate is implied by the predicate
10508 in an existing dependency, remove that dependency. */
10509 if (qp_implies[i].p2 == CURR_SLOT.qp_regno)
10512 /* Note that this implied predicate takes a branch so that if
10513 a later insn generates a DV but its predicate implies this
10514 one, we can avoid the false DV warning. */
10515 qp_implies[i].p2_branched = 1;
10516 while (depind < regdepslen)
10518 if (regdeps[depind].qp_regno == qp_implies[i].p1)
10520 print_dependency ("Removing", depind);
10521 regdeps[depind] = regdeps[--regdepslen];
10528 /* Any marked resources which have this same predicate should be
10529 cleared, provided that the QP hasn't been modified between the
10530 marking instruction and the branch. */
10533 insn_group_break (0, CURR_SLOT.qp_regno, 1);
10538 while (i < regdepslen)
10540 if (regdeps[i].qp_regno == CURR_SLOT.qp_regno
10541 && regdeps[i].link_to_qp_branch
10542 && (regdeps[i].file != CURR_SLOT.src_file
10543 || regdeps[i].line != CURR_SLOT.src_line))
10545 /* Treat like a taken branch */
10546 print_dependency ("Removing", i);
10547 regdeps[i] = regdeps[--regdepslen];
10556 /* Examine the current instruction for dependency violations. */
10560 struct ia64_opcode *idesc;
10564 fprintf (stderr, "Checking %s for violations (line %d, %d/%d)\n",
10565 idesc->name, CURR_SLOT.src_line,
10566 idesc->dependencies->nchks,
10567 idesc->dependencies->nregs);
10570 /* Look through the list of currently marked resources; if the current
10571 instruction has the dependency in its chks list which uses that resource,
10572 check against the specific resources used. */
10573 check_dependencies (idesc);
10575 /* Look up the instruction's regdeps (RAW writes, WAW writes, and WAR reads),
10576 then add them to the list of marked resources. */
10577 mark_resources (idesc);
10579 /* There are several types of dependency semantics, and each has its own
10580 requirements for being cleared
10582 Instruction serialization (insns separated by interruption, rfi, or
10583 writer + srlz.i + reader, all in separate groups) clears DVS_INSTR.
10585 Data serialization (instruction serialization, or writer + srlz.d +
10586 reader, where writer and srlz.d are in separate groups) clears
10587 DVS_DATA. (This also clears DVS_OTHER, but that is not guaranteed to
10588 always be the case).
10590 Instruction group break (groups separated by stop, taken branch,
10591 interruption or rfi) clears DVS_IMPLIED and DVS_IMPLIEDF.
10593 update_dependencies (idesc);
10595 /* Sometimes, knowing a register value allows us to avoid giving a false DV
10596 warning. Keep track of as many as possible that are useful. */
10597 note_register_values (idesc);
10599 /* We don't need or want this anymore. */
10600 md.mem_offset.hint = 0;
10605 /* Translate one line of assembly. Pseudo ops and labels do not show
10611 char *saved_input_line_pointer, *mnemonic;
10612 const struct pseudo_opcode *pdesc;
10613 struct ia64_opcode *idesc;
10614 unsigned char qp_regno;
10615 unsigned int flags;
10618 saved_input_line_pointer = input_line_pointer;
10619 input_line_pointer = str;
10621 /* extract the opcode (mnemonic): */
10623 mnemonic = input_line_pointer;
10624 ch = get_symbol_end ();
10625 pdesc = (struct pseudo_opcode *) hash_find (md.pseudo_hash, mnemonic);
10628 *input_line_pointer = ch;
10629 (*pdesc->handler) (pdesc->arg);
10633 /* Find the instruction descriptor matching the arguments. */
10635 idesc = ia64_find_opcode (mnemonic);
10636 *input_line_pointer = ch;
10639 as_bad ("Unknown opcode `%s'", mnemonic);
10643 idesc = parse_operands (idesc);
10647 /* Handle the dynamic ops we can handle now: */
10648 if (idesc->type == IA64_TYPE_DYN)
10650 if (strcmp (idesc->name, "add") == 0)
10652 if (CURR_SLOT.opnd[2].X_op == O_register
10653 && CURR_SLOT.opnd[2].X_add_number < 4)
10657 ia64_free_opcode (idesc);
10658 idesc = ia64_find_opcode (mnemonic);
10660 else if (strcmp (idesc->name, "mov") == 0)
10662 enum ia64_opnd opnd1, opnd2;
10665 opnd1 = idesc->operands[0];
10666 opnd2 = idesc->operands[1];
10667 if (opnd1 == IA64_OPND_AR3)
10669 else if (opnd2 == IA64_OPND_AR3)
10673 if (CURR_SLOT.opnd[rop].X_op == O_register)
10675 if (ar_is_only_in_integer_unit (CURR_SLOT.opnd[rop].X_add_number))
10676 mnemonic = "mov.i";
10677 else if (ar_is_only_in_memory_unit (CURR_SLOT.opnd[rop].X_add_number))
10678 mnemonic = "mov.m";
10686 ia64_free_opcode (idesc);
10687 idesc = ia64_find_opcode (mnemonic);
10688 while (idesc != NULL
10689 && (idesc->operands[0] != opnd1
10690 || idesc->operands[1] != opnd2))
10691 idesc = get_next_opcode (idesc);
10695 else if (strcmp (idesc->name, "mov.i") == 0
10696 || strcmp (idesc->name, "mov.m") == 0)
10698 enum ia64_opnd opnd1, opnd2;
10701 opnd1 = idesc->operands[0];
10702 opnd2 = idesc->operands[1];
10703 if (opnd1 == IA64_OPND_AR3)
10705 else if (opnd2 == IA64_OPND_AR3)
10709 if (CURR_SLOT.opnd[rop].X_op == O_register)
10712 if (ar_is_only_in_integer_unit (CURR_SLOT.opnd[rop].X_add_number))
10714 else if (ar_is_only_in_memory_unit (CURR_SLOT.opnd[rop].X_add_number))
10716 if (unit != 'a' && unit != idesc->name [4])
10717 as_bad ("AR %d can only be accessed by %c-unit",
10718 (int) (CURR_SLOT.opnd[rop].X_add_number - REG_AR),
10722 else if (strcmp (idesc->name, "hint.b") == 0)
10728 case hint_b_warning:
10729 as_warn ("hint.b may be treated as nop");
10732 as_bad ("hint.b shouldn't be used");
10738 if (md.qp.X_op == O_register)
10740 qp_regno = md.qp.X_add_number - REG_P;
10741 md.qp.X_op = O_absent;
10744 flags = idesc->flags;
10746 if ((flags & IA64_OPCODE_FIRST) != 0)
10748 /* The alignment frag has to end with a stop bit only if the
10749 next instruction after the alignment directive has to be
10750 the first instruction in an instruction group. */
10753 while (align_frag->fr_type != rs_align_code)
10755 align_frag = align_frag->fr_next;
10759 /* align_frag can be NULL if there are directives in
10761 if (align_frag && align_frag->fr_next == frag_now)
10762 align_frag->tc_frag_data = 1;
10765 insn_group_break (1, 0, 0);
10769 if ((flags & IA64_OPCODE_NO_PRED) != 0 && qp_regno != 0)
10771 as_bad ("`%s' cannot be predicated", idesc->name);
10775 /* Build the instruction. */
10776 CURR_SLOT.qp_regno = qp_regno;
10777 CURR_SLOT.idesc = idesc;
10778 as_where (&CURR_SLOT.src_file, &CURR_SLOT.src_line);
10779 dwarf2_where (&CURR_SLOT.debug_line);
10781 /* Add unwind entry, if there is one. */
10782 if (unwind.current_entry)
10784 CURR_SLOT.unwind_record = unwind.current_entry;
10785 unwind.current_entry = NULL;
10787 if (unwind.proc_start && S_IS_DEFINED (unwind.proc_start))
10790 /* Check for dependency violations. */
10794 md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS;
10795 if (++md.num_slots_in_use >= NUM_SLOTS)
10796 emit_one_bundle ();
10798 if ((flags & IA64_OPCODE_LAST) != 0)
10799 insn_group_break (1, 0, 0);
10801 md.last_text_seg = now_seg;
10804 input_line_pointer = saved_input_line_pointer;
10807 /* Called when symbol NAME cannot be found in the symbol table.
10808 Should be used for dynamic valued symbols only. */
10811 md_undefined_symbol (name)
10812 char *name ATTRIBUTE_UNUSED;
10817 /* Called for any expression that can not be recognized. When the
10818 function is called, `input_line_pointer' will point to the start of
10825 switch (*input_line_pointer)
10828 ++input_line_pointer;
10830 if (*input_line_pointer != ']')
10832 as_bad ("Closing bracket missing");
10837 if (e->X_op != O_register)
10838 as_bad ("Register expected as index");
10840 ++input_line_pointer;
10851 ignore_rest_of_line ();
10854 /* Return 1 if it's OK to adjust a reloc by replacing the symbol with
10855 a section symbol plus some offset. For relocs involving @fptr(),
10856 directives we don't want such adjustments since we need to have the
10857 original symbol's name in the reloc. */
10859 ia64_fix_adjustable (fix)
10862 /* Prevent all adjustments to global symbols */
10863 if (S_IS_EXTERNAL (fix->fx_addsy) || S_IS_WEAK (fix->fx_addsy))
10866 switch (fix->fx_r_type)
10868 case BFD_RELOC_IA64_FPTR64I:
10869 case BFD_RELOC_IA64_FPTR32MSB:
10870 case BFD_RELOC_IA64_FPTR32LSB:
10871 case BFD_RELOC_IA64_FPTR64MSB:
10872 case BFD_RELOC_IA64_FPTR64LSB:
10873 case BFD_RELOC_IA64_LTOFF_FPTR22:
10874 case BFD_RELOC_IA64_LTOFF_FPTR64I:
10884 ia64_force_relocation (fix)
10887 switch (fix->fx_r_type)
10889 case BFD_RELOC_IA64_FPTR64I:
10890 case BFD_RELOC_IA64_FPTR32MSB:
10891 case BFD_RELOC_IA64_FPTR32LSB:
10892 case BFD_RELOC_IA64_FPTR64MSB:
10893 case BFD_RELOC_IA64_FPTR64LSB:
10895 case BFD_RELOC_IA64_LTOFF22:
10896 case BFD_RELOC_IA64_LTOFF64I:
10897 case BFD_RELOC_IA64_LTOFF_FPTR22:
10898 case BFD_RELOC_IA64_LTOFF_FPTR64I:
10899 case BFD_RELOC_IA64_PLTOFF22:
10900 case BFD_RELOC_IA64_PLTOFF64I:
10901 case BFD_RELOC_IA64_PLTOFF64MSB:
10902 case BFD_RELOC_IA64_PLTOFF64LSB:
10904 case BFD_RELOC_IA64_LTOFF22X:
10905 case BFD_RELOC_IA64_LDXMOV:
10912 return generic_force_reloc (fix);
10915 /* Decide from what point a pc-relative relocation is relative to,
10916 relative to the pc-relative fixup. Er, relatively speaking. */
10918 ia64_pcrel_from_section (fix, sec)
10922 unsigned long off = fix->fx_frag->fr_address + fix->fx_where;
10924 if (bfd_get_section_flags (stdoutput, sec) & SEC_CODE)
10931 /* Used to emit section-relative relocs for the dwarf2 debug data. */
10933 ia64_dwarf2_emit_offset (symbolS *symbol, unsigned int size)
10937 expr.X_op = O_pseudo_fixup;
10938 expr.X_op_symbol = pseudo_func[FUNC_SEC_RELATIVE].u.sym;
10939 expr.X_add_number = 0;
10940 expr.X_add_symbol = symbol;
10941 emit_expr (&expr, size);
10944 /* This is called whenever some data item (not an instruction) needs a
10945 fixup. We pick the right reloc code depending on the byteorder
10946 currently in effect. */
10948 ia64_cons_fix_new (f, where, nbytes, exp)
10954 bfd_reloc_code_real_type code;
10959 /* There are no reloc for 8 and 16 bit quantities, but we allow
10960 them here since they will work fine as long as the expression
10961 is fully defined at the end of the pass over the source file. */
10962 case 1: code = BFD_RELOC_8; break;
10963 case 2: code = BFD_RELOC_16; break;
10965 if (target_big_endian)
10966 code = BFD_RELOC_IA64_DIR32MSB;
10968 code = BFD_RELOC_IA64_DIR32LSB;
10972 /* In 32-bit mode, data8 could mean function descriptors too. */
10973 if (exp->X_op == O_pseudo_fixup
10974 && exp->X_op_symbol
10975 && S_GET_VALUE (exp->X_op_symbol) == FUNC_IPLT_RELOC
10976 && !(md.flags & EF_IA_64_ABI64))
10978 if (target_big_endian)
10979 code = BFD_RELOC_IA64_IPLTMSB;
10981 code = BFD_RELOC_IA64_IPLTLSB;
10982 exp->X_op = O_symbol;
10987 if (target_big_endian)
10988 code = BFD_RELOC_IA64_DIR64MSB;
10990 code = BFD_RELOC_IA64_DIR64LSB;
10995 if (exp->X_op == O_pseudo_fixup
10996 && exp->X_op_symbol
10997 && S_GET_VALUE (exp->X_op_symbol) == FUNC_IPLT_RELOC)
10999 if (target_big_endian)
11000 code = BFD_RELOC_IA64_IPLTMSB;
11002 code = BFD_RELOC_IA64_IPLTLSB;
11003 exp->X_op = O_symbol;
11009 as_bad ("Unsupported fixup size %d", nbytes);
11010 ignore_rest_of_line ();
11014 if (exp->X_op == O_pseudo_fixup)
11016 exp->X_op = O_symbol;
11017 code = ia64_gen_real_reloc_type (exp->X_op_symbol, code);
11018 /* ??? If code unchanged, unsupported. */
11021 fix = fix_new_exp (f, where, nbytes, exp, 0, code);
11022 /* We need to store the byte order in effect in case we're going
11023 to fix an 8 or 16 bit relocation (for which there no real
11024 relocs available). See md_apply_fix3(). */
11025 fix->tc_fix_data.bigendian = target_big_endian;
11028 /* Return the actual relocation we wish to associate with the pseudo
11029 reloc described by SYM and R_TYPE. SYM should be one of the
11030 symbols in the pseudo_func array, or NULL. */
11032 static bfd_reloc_code_real_type
11033 ia64_gen_real_reloc_type (sym, r_type)
11034 struct symbol *sym;
11035 bfd_reloc_code_real_type r_type;
11037 bfd_reloc_code_real_type new = 0;
11038 const char *type = NULL, *suffix = "";
11045 switch (S_GET_VALUE (sym))
11047 case FUNC_FPTR_RELATIVE:
11050 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_FPTR64I; break;
11051 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_FPTR32MSB; break;
11052 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_FPTR32LSB; break;
11053 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_FPTR64MSB; break;
11054 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_FPTR64LSB; break;
11055 default: type = "FPTR"; break;
11059 case FUNC_GP_RELATIVE:
11062 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_GPREL22; break;
11063 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_GPREL64I; break;
11064 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_GPREL32MSB; break;
11065 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_GPREL32LSB; break;
11066 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_GPREL64MSB; break;
11067 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_GPREL64LSB; break;
11068 default: type = "GPREL"; break;
11072 case FUNC_LT_RELATIVE:
11075 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_LTOFF22; break;
11076 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_LTOFF64I; break;
11077 default: type = "LTOFF"; break;
11081 case FUNC_LT_RELATIVE_X:
11084 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_LTOFF22X; break;
11085 default: type = "LTOFF"; suffix = "X"; break;
11089 case FUNC_PC_RELATIVE:
11092 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_PCREL22; break;
11093 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_PCREL64I; break;
11094 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_PCREL32MSB; break;
11095 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_PCREL32LSB; break;
11096 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_PCREL64MSB; break;
11097 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_PCREL64LSB; break;
11098 default: type = "PCREL"; break;
11102 case FUNC_PLT_RELATIVE:
11105 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_PLTOFF22; break;
11106 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_PLTOFF64I; break;
11107 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_PLTOFF64MSB;break;
11108 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_PLTOFF64LSB;break;
11109 default: type = "PLTOFF"; break;
11113 case FUNC_SEC_RELATIVE:
11116 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_SECREL32MSB;break;
11117 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_SECREL32LSB;break;
11118 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_SECREL64MSB;break;
11119 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_SECREL64LSB;break;
11120 default: type = "SECREL"; break;
11124 case FUNC_SEG_RELATIVE:
11127 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_SEGREL32MSB;break;
11128 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_SEGREL32LSB;break;
11129 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_SEGREL64MSB;break;
11130 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_SEGREL64LSB;break;
11131 default: type = "SEGREL"; break;
11135 case FUNC_LTV_RELATIVE:
11138 case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_LTV32MSB; break;
11139 case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_LTV32LSB; break;
11140 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_LTV64MSB; break;
11141 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_LTV64LSB; break;
11142 default: type = "LTV"; break;
11146 case FUNC_LT_FPTR_RELATIVE:
11149 case BFD_RELOC_IA64_IMM22:
11150 new = BFD_RELOC_IA64_LTOFF_FPTR22; break;
11151 case BFD_RELOC_IA64_IMM64:
11152 new = BFD_RELOC_IA64_LTOFF_FPTR64I; break;
11153 case BFD_RELOC_IA64_DIR32MSB:
11154 new = BFD_RELOC_IA64_LTOFF_FPTR32MSB; break;
11155 case BFD_RELOC_IA64_DIR32LSB:
11156 new = BFD_RELOC_IA64_LTOFF_FPTR32LSB; break;
11157 case BFD_RELOC_IA64_DIR64MSB:
11158 new = BFD_RELOC_IA64_LTOFF_FPTR64MSB; break;
11159 case BFD_RELOC_IA64_DIR64LSB:
11160 new = BFD_RELOC_IA64_LTOFF_FPTR64LSB; break;
11162 type = "LTOFF_FPTR"; break;
11166 case FUNC_TP_RELATIVE:
11169 case BFD_RELOC_IA64_IMM14: new = BFD_RELOC_IA64_TPREL14; break;
11170 case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_TPREL22; break;
11171 case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_TPREL64I; break;
11172 case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_TPREL64MSB; break;
11173 case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_TPREL64LSB; break;
11174 default: type = "TPREL"; break;
11178 case FUNC_LT_TP_RELATIVE:
11181 case BFD_RELOC_IA64_IMM22:
11182 new = BFD_RELOC_IA64_LTOFF_TPREL22; break;
11184 type = "LTOFF_TPREL"; break;
11188 case FUNC_DTP_MODULE:
11191 case BFD_RELOC_IA64_DIR64MSB:
11192 new = BFD_RELOC_IA64_DTPMOD64MSB; break;
11193 case BFD_RELOC_IA64_DIR64LSB:
11194 new = BFD_RELOC_IA64_DTPMOD64LSB; break;
11196 type = "DTPMOD"; break;
11200 case FUNC_LT_DTP_MODULE:
11203 case BFD_RELOC_IA64_IMM22:
11204 new = BFD_RELOC_IA64_LTOFF_DTPMOD22; break;
11206 type = "LTOFF_DTPMOD"; break;
11210 case FUNC_DTP_RELATIVE:
11213 case BFD_RELOC_IA64_DIR32MSB:
11214 new = BFD_RELOC_IA64_DTPREL32MSB; break;
11215 case BFD_RELOC_IA64_DIR32LSB:
11216 new = BFD_RELOC_IA64_DTPREL32LSB; break;
11217 case BFD_RELOC_IA64_DIR64MSB:
11218 new = BFD_RELOC_IA64_DTPREL64MSB; break;
11219 case BFD_RELOC_IA64_DIR64LSB:
11220 new = BFD_RELOC_IA64_DTPREL64LSB; break;
11221 case BFD_RELOC_IA64_IMM14:
11222 new = BFD_RELOC_IA64_DTPREL14; break;
11223 case BFD_RELOC_IA64_IMM22:
11224 new = BFD_RELOC_IA64_DTPREL22; break;
11225 case BFD_RELOC_IA64_IMM64:
11226 new = BFD_RELOC_IA64_DTPREL64I; break;
11228 type = "DTPREL"; break;
11232 case FUNC_LT_DTP_RELATIVE:
11235 case BFD_RELOC_IA64_IMM22:
11236 new = BFD_RELOC_IA64_LTOFF_DTPREL22; break;
11238 type = "LTOFF_DTPREL"; break;
11242 case FUNC_IPLT_RELOC:
11245 case BFD_RELOC_IA64_IPLTMSB: return r_type;
11246 case BFD_RELOC_IA64_IPLTLSB: return r_type;
11247 default: type = "IPLT"; break;
11265 case BFD_RELOC_IA64_DIR32MSB: width = 32; suffix = "MSB"; break;
11266 case BFD_RELOC_IA64_DIR32LSB: width = 32; suffix = "LSB"; break;
11267 case BFD_RELOC_IA64_DIR64MSB: width = 64; suffix = "MSB"; break;
11268 case BFD_RELOC_IA64_DIR64LSB: width = 64; suffix = "LSB"; break;
11269 case BFD_RELOC_UNUSED: width = 13; break;
11270 case BFD_RELOC_IA64_IMM14: width = 14; break;
11271 case BFD_RELOC_IA64_IMM22: width = 22; break;
11272 case BFD_RELOC_IA64_IMM64: width = 64; suffix = "I"; break;
11276 /* This should be an error, but since previously there wasn't any
11277 diagnostic here, dont't make it fail because of this for now. */
11278 as_warn ("Cannot express %s%d%s relocation", type, width, suffix);
11283 /* Here is where generate the appropriate reloc for pseudo relocation
11286 ia64_validate_fix (fix)
11289 switch (fix->fx_r_type)
11291 case BFD_RELOC_IA64_FPTR64I:
11292 case BFD_RELOC_IA64_FPTR32MSB:
11293 case BFD_RELOC_IA64_FPTR64LSB:
11294 case BFD_RELOC_IA64_LTOFF_FPTR22:
11295 case BFD_RELOC_IA64_LTOFF_FPTR64I:
11296 if (fix->fx_offset != 0)
11297 as_bad_where (fix->fx_file, fix->fx_line,
11298 "No addend allowed in @fptr() relocation");
11306 fix_insn (fix, odesc, value)
11308 const struct ia64_operand *odesc;
11311 bfd_vma insn[3], t0, t1, control_bits;
11316 slot = fix->fx_where & 0x3;
11317 fixpos = fix->fx_frag->fr_literal + (fix->fx_where - slot);
11319 /* Bundles are always in little-endian byte order */
11320 t0 = bfd_getl64 (fixpos);
11321 t1 = bfd_getl64 (fixpos + 8);
11322 control_bits = t0 & 0x1f;
11323 insn[0] = (t0 >> 5) & 0x1ffffffffffLL;
11324 insn[1] = ((t0 >> 46) & 0x3ffff) | ((t1 & 0x7fffff) << 18);
11325 insn[2] = (t1 >> 23) & 0x1ffffffffffLL;
11328 if (odesc - elf64_ia64_operands == IA64_OPND_IMMU64)
11330 insn[1] = (value >> 22) & 0x1ffffffffffLL;
11331 insn[2] |= (((value & 0x7f) << 13)
11332 | (((value >> 7) & 0x1ff) << 27)
11333 | (((value >> 16) & 0x1f) << 22)
11334 | (((value >> 21) & 0x1) << 21)
11335 | (((value >> 63) & 0x1) << 36));
11337 else if (odesc - elf64_ia64_operands == IA64_OPND_IMMU62)
11339 if (value & ~0x3fffffffffffffffULL)
11340 err = "integer operand out of range";
11341 insn[1] = (value >> 21) & 0x1ffffffffffLL;
11342 insn[2] |= (((value & 0xfffff) << 6) | (((value >> 20) & 0x1) << 36));
11344 else if (odesc - elf64_ia64_operands == IA64_OPND_TGT64)
11347 insn[1] = ((value >> 20) & 0x7fffffffffLL) << 2;
11348 insn[2] |= ((((value >> 59) & 0x1) << 36)
11349 | (((value >> 0) & 0xfffff) << 13));
11352 err = (*odesc->insert) (odesc, value, insn + slot);
11355 as_bad_where (fix->fx_file, fix->fx_line, err);
11357 t0 = control_bits | (insn[0] << 5) | (insn[1] << 46);
11358 t1 = ((insn[1] >> 18) & 0x7fffff) | (insn[2] << 23);
11359 number_to_chars_littleendian (fixpos + 0, t0, 8);
11360 number_to_chars_littleendian (fixpos + 8, t1, 8);
11363 /* Attempt to simplify or even eliminate a fixup. The return value is
11364 ignored; perhaps it was once meaningful, but now it is historical.
11365 To indicate that a fixup has been eliminated, set FIXP->FX_DONE.
11367 If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry
11371 md_apply_fix3 (fix, valP, seg)
11374 segT seg ATTRIBUTE_UNUSED;
11377 valueT value = *valP;
11379 fixpos = fix->fx_frag->fr_literal + fix->fx_where;
11383 switch (fix->fx_r_type)
11385 case BFD_RELOC_IA64_PCREL21B: break;
11386 case BFD_RELOC_IA64_PCREL21BI: break;
11387 case BFD_RELOC_IA64_PCREL21F: break;
11388 case BFD_RELOC_IA64_PCREL21M: break;
11389 case BFD_RELOC_IA64_PCREL60B: break;
11390 case BFD_RELOC_IA64_PCREL22: break;
11391 case BFD_RELOC_IA64_PCREL64I: break;
11392 case BFD_RELOC_IA64_PCREL32MSB: break;
11393 case BFD_RELOC_IA64_PCREL32LSB: break;
11394 case BFD_RELOC_IA64_PCREL64MSB: break;
11395 case BFD_RELOC_IA64_PCREL64LSB: break;
11397 fix->fx_r_type = ia64_gen_real_reloc_type (pseudo_func[FUNC_PC_RELATIVE].u.sym,
11404 switch (fix->fx_r_type)
11406 case BFD_RELOC_UNUSED:
11407 /* This must be a TAG13 or TAG13b operand. There are no external
11408 relocs defined for them, so we must give an error. */
11409 as_bad_where (fix->fx_file, fix->fx_line,
11410 "%s must have a constant value",
11411 elf64_ia64_operands[fix->tc_fix_data.opnd].desc);
11415 case BFD_RELOC_IA64_TPREL14:
11416 case BFD_RELOC_IA64_TPREL22:
11417 case BFD_RELOC_IA64_TPREL64I:
11418 case BFD_RELOC_IA64_LTOFF_TPREL22:
11419 case BFD_RELOC_IA64_LTOFF_DTPMOD22:
11420 case BFD_RELOC_IA64_DTPREL14:
11421 case BFD_RELOC_IA64_DTPREL22:
11422 case BFD_RELOC_IA64_DTPREL64I:
11423 case BFD_RELOC_IA64_LTOFF_DTPREL22:
11424 S_SET_THREAD_LOCAL (fix->fx_addsy);
11431 else if (fix->tc_fix_data.opnd == IA64_OPND_NIL)
11433 if (fix->tc_fix_data.bigendian)
11434 number_to_chars_bigendian (fixpos, value, fix->fx_size);
11436 number_to_chars_littleendian (fixpos, value, fix->fx_size);
11441 fix_insn (fix, elf64_ia64_operands + fix->tc_fix_data.opnd, value);
11446 /* Generate the BFD reloc to be stuck in the object file from the
11447 fixup used internally in the assembler. */
11450 tc_gen_reloc (sec, fixp)
11451 asection *sec ATTRIBUTE_UNUSED;
11456 reloc = xmalloc (sizeof (*reloc));
11457 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
11458 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
11459 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
11460 reloc->addend = fixp->fx_offset;
11461 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
11465 as_bad_where (fixp->fx_file, fixp->fx_line,
11466 "Cannot represent %s relocation in object file",
11467 bfd_get_reloc_code_name (fixp->fx_r_type));
11472 /* Turn a string in input_line_pointer into a floating point constant
11473 of type TYPE, and store the appropriate bytes in *LIT. The number
11474 of LITTLENUMS emitted is stored in *SIZE. An error message is
11475 returned, or NULL on OK. */
11477 #define MAX_LITTLENUMS 5
11480 md_atof (type, lit, size)
11485 LITTLENUM_TYPE words[MAX_LITTLENUMS];
11515 return "Bad call to MD_ATOF()";
11517 t = atof_ieee (input_line_pointer, type, words);
11519 input_line_pointer = t;
11521 (*ia64_float_to_chars) (lit, words, prec);
11525 /* It is 10 byte floating point with 6 byte padding. */
11526 memset (&lit [10], 0, 6);
11527 *size = 8 * sizeof (LITTLENUM_TYPE);
11530 *size = prec * sizeof (LITTLENUM_TYPE);
11535 /* Handle ia64 specific semantics of the align directive. */
11538 ia64_md_do_align (n, fill, len, max)
11539 int n ATTRIBUTE_UNUSED;
11540 const char *fill ATTRIBUTE_UNUSED;
11541 int len ATTRIBUTE_UNUSED;
11542 int max ATTRIBUTE_UNUSED;
11544 if (subseg_text_p (now_seg))
11545 ia64_flush_insns ();
11548 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
11549 of an rs_align_code fragment. */
11552 ia64_handle_align (fragp)
11557 const unsigned char *nop;
11559 if (fragp->fr_type != rs_align_code)
11562 /* Check if this frag has to end with a stop bit. */
11563 nop = fragp->tc_frag_data ? le_nop_stop : le_nop;
11565 bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix;
11566 p = fragp->fr_literal + fragp->fr_fix;
11568 /* If no paddings are needed, we check if we need a stop bit. */
11569 if (!bytes && fragp->tc_frag_data)
11571 if (fragp->fr_fix < 16)
11573 /* FIXME: It won't work with
11575 alloc r32=ar.pfs,1,2,4,0
11579 as_bad_where (fragp->fr_file, fragp->fr_line,
11580 _("Can't add stop bit to mark end of instruction group"));
11583 /* Bundles are always in little-endian byte order. Make sure
11584 the previous bundle has the stop bit. */
11588 /* Make sure we are on a 16-byte boundary, in case someone has been
11589 putting data into a text section. */
11592 int fix = bytes & 15;
11593 memset (p, 0, fix);
11596 fragp->fr_fix += fix;
11599 /* Instruction bundles are always little-endian. */
11600 memcpy (p, nop, 16);
11601 fragp->fr_var = 16;
11605 ia64_float_to_chars_bigendian (char *lit, LITTLENUM_TYPE *words,
11610 number_to_chars_bigendian (lit, (long) (*words++),
11611 sizeof (LITTLENUM_TYPE));
11612 lit += sizeof (LITTLENUM_TYPE);
11617 ia64_float_to_chars_littleendian (char *lit, LITTLENUM_TYPE *words,
11622 number_to_chars_littleendian (lit, (long) (words[prec]),
11623 sizeof (LITTLENUM_TYPE));
11624 lit += sizeof (LITTLENUM_TYPE);
11629 ia64_elf_section_change_hook (void)
11631 if (elf_section_type (now_seg) == SHT_IA_64_UNWIND
11632 && elf_linked_to_section (now_seg) == NULL)
11633 elf_linked_to_section (now_seg) = text_section;
11634 dot_byteorder (-1);
11637 /* Check if a label should be made global. */
11639 ia64_check_label (symbolS *label)
11641 if (*input_line_pointer == ':')
11643 S_SET_EXTERNAL (label);
11644 input_line_pointer++;
11648 /* Used to remember where .alias and .secalias directives are seen. We
11649 will rename symbol and section names when we are about to output
11650 the relocatable file. */
11653 char *file; /* The file where the directive is seen. */
11654 unsigned int line; /* The line number the directive is at. */
11655 const char *name; /* The orignale name of the symbol. */
11658 /* Called for .alias and .secalias directives. If SECTION is 1, it is
11659 .secalias. Otherwise, it is .alias. */
11661 dot_alias (int section)
11663 char *name, *alias;
11667 const char *error_string;
11670 struct hash_control *ahash, *nhash;
11673 name = input_line_pointer;
11674 delim = get_symbol_end ();
11675 end_name = input_line_pointer;
11678 if (name == end_name)
11680 as_bad (_("expected symbol name"));
11681 discard_rest_of_line ();
11685 SKIP_WHITESPACE ();
11687 if (*input_line_pointer != ',')
11690 as_bad (_("expected comma after \"%s\""), name);
11692 ignore_rest_of_line ();
11696 input_line_pointer++;
11698 ia64_canonicalize_symbol_name (name);
11700 /* We call demand_copy_C_string to check if alias string is valid.
11701 There should be a closing `"' and no `\0' in the string. */
11702 alias = demand_copy_C_string (&len);
11705 ignore_rest_of_line ();
11709 /* Make a copy of name string. */
11710 len = strlen (name) + 1;
11711 obstack_grow (¬es, name, len);
11712 name = obstack_finish (¬es);
11717 ahash = secalias_hash;
11718 nhash = secalias_name_hash;
11723 ahash = alias_hash;
11724 nhash = alias_name_hash;
11727 /* Check if alias has been used before. */
11728 h = (struct alias *) hash_find (ahash, alias);
11731 if (strcmp (h->name, name))
11732 as_bad (_("`%s' is already the alias of %s `%s'"),
11733 alias, kind, h->name);
11737 /* Check if name already has an alias. */
11738 a = (const char *) hash_find (nhash, name);
11741 if (strcmp (a, alias))
11742 as_bad (_("%s `%s' already has an alias `%s'"), kind, name, a);
11746 h = (struct alias *) xmalloc (sizeof (struct alias));
11747 as_where (&h->file, &h->line);
11750 error_string = hash_jam (ahash, alias, (PTR) h);
11753 as_fatal (_("inserting \"%s\" into %s alias hash table failed: %s"),
11754 alias, kind, error_string);
11758 error_string = hash_jam (nhash, name, (PTR) alias);
11761 as_fatal (_("inserting \"%s\" into %s name hash table failed: %s"),
11762 alias, kind, error_string);
11764 obstack_free (¬es, name);
11765 obstack_free (¬es, alias);
11768 demand_empty_rest_of_line ();
11771 /* It renames the original symbol name to its alias. */
11773 do_alias (const char *alias, PTR value)
11775 struct alias *h = (struct alias *) value;
11776 symbolS *sym = symbol_find (h->name);
11779 as_warn_where (h->file, h->line,
11780 _("symbol `%s' aliased to `%s' is not used"),
11783 S_SET_NAME (sym, (char *) alias);
11786 /* Called from write_object_file. */
11788 ia64_adjust_symtab (void)
11790 hash_traverse (alias_hash, do_alias);
11793 /* It renames the original section name to its alias. */
11795 do_secalias (const char *alias, PTR value)
11797 struct alias *h = (struct alias *) value;
11798 segT sec = bfd_get_section_by_name (stdoutput, h->name);
11801 as_warn_where (h->file, h->line,
11802 _("section `%s' aliased to `%s' is not used"),
11808 /* Called from write_object_file. */
11810 ia64_frob_file (void)
11812 hash_traverse (secalias_hash, do_secalias);