[qemu.git] / tcg / tcg.h

/*
 * Tiny Code Generator for QEMU
 *
 * Copyright (c) 2008 Fabrice Bellard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "tcg-target.h"

#if TCG_TARGET_REG_BITS == 32
typedef int32_t tcg_target_long;
typedef uint32_t tcg_target_ulong;
#define TCG_PRIlx PRIx32
#define TCG_PRIld PRId32
#elif TCG_TARGET_REG_BITS == 64
typedef int64_t tcg_target_long;
typedef uint64_t tcg_target_ulong;
#define TCG_PRIlx PRIx64
#define TCG_PRIld PRId64
#else
#error unsupported
#endif

#if TCG_TARGET_NB_REGS <= 32
typedef uint32_t TCGRegSet;
#elif TCG_TARGET_NB_REGS <= 64
typedef uint64_t TCGRegSet;
#else
#error unsupported
#endif

enum {
#define DEF(s, n, copy_size) INDEX_op_ ## s,
#include "tcg-opc.h"
#undef DEF
    NB_OPS,
};

#define tcg_regset_clear(d) (d) = 0
#define tcg_regset_set(d, s) (d) = (s)
#define tcg_regset_set32(d, reg, val32) (d) |= (val32) << (reg)
#define tcg_regset_set_reg(d, r) (d) |= 1 << (r)
#define tcg_regset_reset_reg(d, r) (d) &= ~(1 << (r))
#define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
#define tcg_regset_or(d, a, b) (d) = (a) | (b)
#define tcg_regset_and(d, a, b) (d) = (a) & (b)
#define tcg_regset_andnot(d, a, b) (d) = (a) & ~(b)
#define tcg_regset_not(d, a) (d) = ~(a)

typedef struct TCGRelocation {
    struct TCGRelocation *next;
    int type;
    uint8_t *ptr;
    tcg_target_long addend;
} TCGRelocation; 

typedef struct TCGLabel {
    int has_value;
    union {
        tcg_target_ulong value;
        TCGRelocation *first_reloc;
    } u;
} TCGLabel;

typedef struct TCGPool {
    struct TCGPool *next;
    int size;
    uint8_t data[0];
} TCGPool;

#define TCG_POOL_CHUNK_SIZE 32768

#define TCG_MAX_LABELS 512

#define TCG_MAX_TEMPS 512

/* when the size of the arguments of a called function is smaller than
   this value, they are statically allocated in the TB stack frame */
#define TCG_STATIC_CALL_ARGS_SIZE 128

typedef int TCGType;

#define TCG_TYPE_I32 0
#define TCG_TYPE_I64 1

#if TCG_TARGET_REG_BITS == 32
#define TCG_TYPE_PTR TCG_TYPE_I32
#else
#define TCG_TYPE_PTR TCG_TYPE_I64
#endif

typedef tcg_target_ulong TCGArg;

/* Define a type and accessor macros for varables.  Using a struct is
   nice because it gives some level of type safely.  Ideally the compiler
   be able to see through all this.  However in practice this is not true,
   expecially on targets with braindamaged ABIs (e.g. i386).
   We use plain int by default to avoid this runtime overhead.
   Users of tcg_gen_* don't need to know about any of this, and should
   treat TCGv as an opaque type.  */

//#define DEBUG_TCGV 1

#ifdef DEBUG_TCGV

typedef struct
{
    int n;
} TCGv;

#define MAKE_TCGV(i) __extension__ \
  ({ TCGv make_tcgv_tmp = {i}; make_tcgv_tmp;})
#define GET_TCGV(t) ((t).n)
#if TCG_TARGET_REG_BITS == 32
#define TCGV_HIGH(t) MAKE_TCGV(GET_TCGV(t) + 1)
#endif

#else /* !DEBUG_TCGV */

typedef int TCGv;
#define MAKE_TCGV(x) (x)
#define GET_TCGV(t) (t)
#if TCG_TARGET_REG_BITS == 32
#define TCGV_HIGH(t) ((t) + 1)
#endif

#endif /* DEBUG_TCGV */

/* call flags */
#define TCG_CALL_TYPE_MASK      0x000f
#define TCG_CALL_TYPE_STD       0x0000 /* standard C call */
#define TCG_CALL_TYPE_REGPARM_1 0x0001 /* i386 style regparm call (1 reg) */
#define TCG_CALL_TYPE_REGPARM_2 0x0002 /* i386 style regparm call (2 regs) */
#define TCG_CALL_TYPE_REGPARM   0x0003 /* i386 style regparm call (3 regs) */

typedef enum {
    TCG_COND_EQ,
    TCG_COND_NE,
    TCG_COND_LT,
    TCG_COND_GE,
    TCG_COND_LE,
    TCG_COND_GT,
    /* unsigned */
    TCG_COND_LTU,
    TCG_COND_GEU,
    TCG_COND_LEU,
    TCG_COND_GTU,
} TCGCond;

#define TEMP_VAL_DEAD  0
#define TEMP_VAL_REG   1
#define TEMP_VAL_MEM   2
#define TEMP_VAL_CONST 3

/* XXX: optimize memory layout */
typedef struct TCGTemp {
    TCGType base_type;
    TCGType type;
    int val_type;
    int reg;
    tcg_target_long val;
    int mem_reg;
    tcg_target_long mem_offset;
    unsigned int fixed_reg:1;
    unsigned int mem_coherent:1;
    unsigned int mem_allocated:1;
    const char *name;
} TCGTemp;

typedef struct TCGHelperInfo {
    void *func;
    const char *name;
} TCGHelperInfo;

typedef struct TCGContext TCGContext;

typedef void TCGMacroFunc(TCGContext *s, int macro_id, const int *dead_args);

struct TCGContext {
    uint8_t *pool_cur, *pool_end;
    TCGPool *pool_first, *pool_current;
    TCGLabel *labels;
    int nb_labels;
    TCGTemp *temps; /* globals first, temps after */
    int nb_globals;
    int nb_temps;
    /* constant indexes (end of temp array) */
    int const_start;
    int const_end;

    /* goto_tb support */
    uint8_t *code_buf;
    unsigned long *tb_next;
    uint16_t *tb_next_offset;
    uint16_t *tb_jmp_offset; /* != NULL if USE_DIRECT_JUMP */

    uint16_t *op_dead_iargs; /* for each operation, each bit tells if the
                                corresponding input argument is dead */
    /* tells in which temporary a given register is. It does not take
       into account fixed registers */
    int reg_to_temp[TCG_TARGET_NB_REGS];
    TCGRegSet reserved_regs;
    tcg_target_long current_frame_offset;
    tcg_target_long frame_start;
    tcg_target_long frame_end;
    int frame_reg;

    uint8_t *code_ptr;
    TCGTemp static_temps[TCG_MAX_TEMPS];

    TCGMacroFunc *macro_func;
    TCGHelperInfo *helpers;
    int nb_helpers;
    int allocated_helpers;
};

extern TCGContext tcg_ctx;
extern uint16_t *gen_opc_ptr;
extern TCGArg *gen_opparam_ptr;
extern uint16_t gen_opc_buf[];
extern TCGArg gen_opparam_buf[];

/* pool based memory allocation */

void *tcg_malloc_internal(TCGContext *s, int size);
void tcg_pool_reset(TCGContext *s);
void tcg_pool_delete(TCGContext *s);

static inline void *tcg_malloc(int size)
{
    TCGContext *s = &tcg_ctx;
    uint8_t *ptr, *ptr_end;
    size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1);
    ptr = s->pool_cur;
    ptr_end = ptr + size;
    if (unlikely(ptr_end > s->pool_end)) {
        return tcg_malloc_internal(&tcg_ctx, size);
    } else {
        s->pool_cur = ptr_end;
        return ptr;
    }
}

void tcg_context_init(TCGContext *s);
void tcg_func_start(TCGContext *s);

int dyngen_code(TCGContext *s, uint8_t *gen_code_buf);
int dyngen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, long offset);

void tcg_set_frame(TCGContext *s, int reg,
                   tcg_target_long start, tcg_target_long size);
void tcg_set_macro_func(TCGContext *s, TCGMacroFunc *func);
TCGv tcg_global_reg_new(TCGType type, int reg, const char *name);
TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset,
                        const char *name);
TCGv tcg_temp_new(TCGType type);
char *tcg_get_arg_str(TCGContext *s, char *buf, int buf_size, TCGv arg);

#define TCG_CT_ALIAS  0x80
#define TCG_CT_IALIAS 0x40
#define TCG_CT_REG    0x01
#define TCG_CT_CONST  0x02 /* any constant of register size */

typedef struct TCGArgConstraint {
    uint16_t ct;
    uint8_t alias_index;
    union {
        TCGRegSet regs;
    } u;
} TCGArgConstraint;

#define TCG_MAX_OP_ARGS 16

#define TCG_OPF_BB_END     0x01 /* instruction defines the end of a basic
                                   block */
#define TCG_OPF_CALL_CLOBBER 0x02 /* instruction clobbers call registers 
                                   and potentially update globals. */
#define TCG_OPF_SIDE_EFFECTS 0x04 /* instruction has side effects : it
                                     cannot be removed if its output
                                     are not used */

typedef struct TCGOpDef {
    const char *name;
    uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
    uint8_t flags;
    uint16_t copy_size;
    TCGArgConstraint *args_ct;
    int *sorted_args;
} TCGOpDef;
        
typedef struct TCGTargetOpDef {
    int op;
    const char *args_ct_str[TCG_MAX_OP_ARGS];
} TCGTargetOpDef;

extern TCGOpDef tcg_op_defs[];

void tcg_target_init(TCGContext *s);
void tcg_target_qemu_prologue(TCGContext *s);

#define tcg_abort() \
do {\
    fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
    abort();\
} while (0)

void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);

void tcg_gen_call(TCGContext *s, TCGv func, unsigned int flags,
                  unsigned int nb_rets, const TCGv *rets,
                  unsigned int nb_params, const TCGv *args1);
void tcg_gen_shifti_i64(TCGv ret, TCGv arg1, 
                        int c, int right, int arith);

/* only used for debugging purposes */
void tcg_register_helper(void *func, const char *name);
#define TCG_HELPER(func) tcg_register_helper(func, #func)
const char *tcg_helper_get_name(TCGContext *s, void *func);
void tcg_dump_ops(TCGContext *s, FILE *outfile);

void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf);
TCGv tcg_const_i32(int32_t val);
TCGv tcg_const_i64(int64_t val);

#if TCG_TARGET_REG_BITS == 32
#define tcg_const_ptr tcg_const_i32
#define tcg_add_ptr tcg_add_i32
#define tcg_sub_ptr tcg_sub_i32
#else
#define tcg_const_ptr tcg_const_i64
#define tcg_add_ptr tcg_add_i64
#define tcg_sub_ptr tcg_sub_i64
#endif

void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type, 
                   int label_index, long addend);
void tcg_reg_alloc_start(TCGContext *s);
void tcg_reg_alloc_bb_end(TCGContext *s);
void tcg_liveness_analysis(TCGContext *s);
const TCGArg *tcg_gen_code_op(TCGContext *s, int opc, const TCGArg *args1,
                              unsigned int dead_iargs);

const TCGArg *dyngen_op(TCGContext *s, int opc, const TCGArg *opparam_ptr);

/* tcg-runtime.c */
int64_t tcg_helper_shl_i64(int64_t arg1, int64_t arg2);
int64_t tcg_helper_shr_i64(int64_t arg1, int64_t arg2);
int64_t tcg_helper_sar_i64(int64_t arg1, int64_t arg2);
int64_t tcg_helper_div_i64(int64_t arg1, int64_t arg2);
int64_t tcg_helper_rem_i64(int64_t arg1, int64_t arg2);
uint64_t tcg_helper_divu_i64(uint64_t arg1, uint64_t arg2);
uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2);

extern uint8_t code_gen_prologue[];
#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM (*)(void *))code_gen_prologue)(tb_ptr)
Commit	Line	Data
c896fe29 FB	1	/*
	2	* Tiny Code Generator for QEMU
	3	*
	4	* Copyright (c) 2008 Fabrice Bellard
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24	#include "tcg-target.h"
	25
	26	#if TCG_TARGET_REG_BITS == 32
	27	typedef int32_t tcg_target_long;
	28	typedef uint32_t tcg_target_ulong;
	29	#define TCG_PRIlx PRIx32
	30	#define TCG_PRIld PRId32
	31	#elif TCG_TARGET_REG_BITS == 64
	32	typedef int64_t tcg_target_long;
	33	typedef uint64_t tcg_target_ulong;
	34	#define TCG_PRIlx PRIx64
	35	#define TCG_PRIld PRId64
	36	#else
	37	#error unsupported
	38	#endif
	39
	40	#if TCG_TARGET_NB_REGS <= 32
	41	typedef uint32_t TCGRegSet;
	42	#elif TCG_TARGET_NB_REGS <= 64
	43	typedef uint64_t TCGRegSet;
	44	#else
	45	#error unsupported
	46	#endif
	47
	48	enum {
	49	#define DEF(s, n, copy_size) INDEX_op_ ## s,
	50	#include "tcg-opc.h"
	51	#undef DEF
	52	NB_OPS,
	53	};
	54
	55	#define tcg_regset_clear(d) (d) = 0
	56	#define tcg_regset_set(d, s) (d) = (s)
	57	#define tcg_regset_set32(d, reg, val32) (d) \|= (val32) << (reg)
	58	#define tcg_regset_set_reg(d, r) (d) \|= 1 << (r)
	59	#define tcg_regset_reset_reg(d, r) (d) &= ~(1 << (r))
	60	#define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
	61	#define tcg_regset_or(d, a, b) (d) = (a) \| (b)
	62	#define tcg_regset_and(d, a, b) (d) = (a) & (b)
	63	#define tcg_regset_andnot(d, a, b) (d) = (a) & ~(b)
	64	#define tcg_regset_not(d, a) (d) = ~(a)
65
66	typedef struct TCGRelocation {
67	struct TCGRelocation *next;
68	int type;
69	uint8_t *ptr;
70	tcg_target_long addend;
71	} TCGRelocation;
72
73	typedef struct TCGLabel {
74	int has_value;
75	union {
76	tcg_target_ulong value;
77	TCGRelocation *first_reloc;
78	} u;
79	} TCGLabel;
80
81	typedef struct TCGPool {
82	struct TCGPool *next;
83	int size;
84	uint8_t data[0];
85	} TCGPool;
86
87	#define TCG_POOL_CHUNK_SIZE 32768
88
89	#define TCG_MAX_LABELS 512
90
c4071c90	91	#define TCG_MAX_TEMPS 512
c896fe29	92
b03cce8e FB	93	/* when the size of the arguments of a called function is smaller than
	94	this value, they are statically allocated in the TB stack frame */
	95	#define TCG_STATIC_CALL_ARGS_SIZE 128
	96
c896fe29 FB	97	typedef int TCGType;
	98
	99	#define TCG_TYPE_I32 0
	100	#define TCG_TYPE_I64 1
	101
	102	#if TCG_TARGET_REG_BITS == 32
	103	#define TCG_TYPE_PTR TCG_TYPE_I32
	104	#else
	105	#define TCG_TYPE_PTR TCG_TYPE_I64
	106	#endif
	107
	108	typedef tcg_target_ulong TCGArg;
	109
ac56dd48 PB	110	/* Define a type and accessor macros for varables. Using a struct is
	111	nice because it gives some level of type safely. Ideally the compiler
	112	be able to see through all this. However in practice this is not true,
	113	expecially on targets with braindamaged ABIs (e.g. i386).
	114	We use plain int by default to avoid this runtime overhead.
	115	Users of tcg_gen_* don't need to know about any of this, and should
	116	treat TCGv as an opaque type. */
	117
	118	//#define DEBUG_TCGV 1
	119
	120	#ifdef DEBUG_TCGV
	121
	122	typedef struct
	123	{
	124	int n;
	125	} TCGv;
	126
	127	#define MAKE_TCGV(i) __extension__ \
	128	({ TCGv make_tcgv_tmp = {i}; make_tcgv_tmp;})
	129	#define GET_TCGV(t) ((t).n)
	130	#if TCG_TARGET_REG_BITS == 32
	131	#define TCGV_HIGH(t) MAKE_TCGV(GET_TCGV(t) + 1)
	132	#endif
	133
	134	#else /* !DEBUG_TCGV */
	135
	136	typedef int TCGv;
	137	#define MAKE_TCGV(x) (x)
	138	#define GET_TCGV(t) (t)
	139	#if TCG_TARGET_REG_BITS == 32
	140	#define TCGV_HIGH(t) ((t) + 1)
	141	#endif
	142
	143	#endif /* DEBUG_TCGV */
	144
c896fe29 FB	145	/* call flags */
	146	#define TCG_CALL_TYPE_MASK 0x000f
	147	#define TCG_CALL_TYPE_STD 0x0000 /* standard C call */
	148	#define TCG_CALL_TYPE_REGPARM_1 0x0001 /* i386 style regparm call (1 reg) */
	149	#define TCG_CALL_TYPE_REGPARM_2 0x0002 /* i386 style regparm call (2 regs) */
	150	#define TCG_CALL_TYPE_REGPARM 0x0003 /* i386 style regparm call (3 regs) */
	151
	152	typedef enum {
	153	TCG_COND_EQ,
	154	TCG_COND_NE,
	155	TCG_COND_LT,
	156	TCG_COND_GE,
	157	TCG_COND_LE,
	158	TCG_COND_GT,
	159	/* unsigned */
	160	TCG_COND_LTU,
	161	TCG_COND_GEU,
	162	TCG_COND_LEU,
	163	TCG_COND_GTU,
	164	} TCGCond;
	165
	166	#define TEMP_VAL_DEAD 0
	167	#define TEMP_VAL_REG 1
	168	#define TEMP_VAL_MEM 2
	169	#define TEMP_VAL_CONST 3
	170
	171	/* XXX: optimize memory layout */
	172	typedef struct TCGTemp {
	173	TCGType base_type;
	174	TCGType type;
	175	int val_type;
	176	int reg;
	177	tcg_target_long val;
	178	int mem_reg;
	179	tcg_target_long mem_offset;
	180	unsigned int fixed_reg:1;
	181	unsigned int mem_coherent:1;
	182	unsigned int mem_allocated:1;
	183	const char *name;
	184	} TCGTemp;
	185
	186	typedef struct TCGHelperInfo {
	187	void *func;
	188	const char *name;
	189	} TCGHelperInfo;
	190
	191	typedef struct TCGContext TCGContext;
	192
	193	typedef void TCGMacroFunc(TCGContext s, int macro_id, const int dead_args);
	194
	195	struct TCGContext {
	196	uint8_t pool_cur, pool_end;
	197	TCGPool pool_first, pool_current;
	198	TCGLabel *labels;
	199	int nb_labels;
	200	TCGTemp temps; / globals first, temps after */
	201	int nb_globals;
	202	int nb_temps;
	203	/* constant indexes (end of temp array) */
	204	int const_start;
	205	int const_end;
	206
	207	/* goto_tb support */
	208	uint8_t *code_buf;
209	unsigned long *tb_next;
210	uint16_t *tb_next_offset;
211	uint16_t tb_jmp_offset; / != NULL if USE_DIRECT_JUMP */
212
213	uint16_t op_dead_iargs; / for each operation, each bit tells if the
214	corresponding input argument is dead */
215	/* tells in which temporary a given register is. It does not take
216	into account fixed registers */
217	int reg_to_temp[TCG_TARGET_NB_REGS];
218	TCGRegSet reserved_regs;
219	tcg_target_long current_frame_offset;
220	tcg_target_long frame_start;
221	tcg_target_long frame_end;
222	int frame_reg;
223
224	uint8_t *code_ptr;
225	TCGTemp static_temps[TCG_MAX_TEMPS];
226
227	TCGMacroFunc *macro_func;
228	TCGHelperInfo *helpers;
229	int nb_helpers;
230	int allocated_helpers;
231	};
232
233	extern TCGContext tcg_ctx;
234	extern uint16_t *gen_opc_ptr;
235	extern TCGArg *gen_opparam_ptr;
236	extern uint16_t gen_opc_buf[];
237	extern TCGArg gen_opparam_buf[];
238
239	/* pool based memory allocation */
240
241	void tcg_malloc_internal(TCGContext s, int size);
242	void tcg_pool_reset(TCGContext *s);
243	void tcg_pool_delete(TCGContext *s);
244
245	static inline void *tcg_malloc(int size)
246	{
247	TCGContext *s = &tcg_ctx;
248	uint8_t ptr, ptr_end;
249	size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1);
250	ptr = s->pool_cur;
251	ptr_end = ptr + size;
252	if (unlikely(ptr_end > s->pool_end)) {
253	return tcg_malloc_internal(&tcg_ctx, size);
254	} else {
255	s->pool_cur = ptr_end;
256	return ptr;
257	}
258	}
259
260	void tcg_context_init(TCGContext *s);
261	void tcg_func_start(TCGContext *s);
262
263	int dyngen_code(TCGContext s, uint8_t gen_code_buf);
623e265c	264	int dyngen_code_search_pc(TCGContext s, uint8_t gen_code_buf, long offset);
c896fe29 FB	265
	266	void tcg_set_frame(TCGContext *s, int reg,
	267	tcg_target_long start, tcg_target_long size);
	268	void tcg_set_macro_func(TCGContext s, TCGMacroFunc func);
ac56dd48 PB	269	TCGv tcg_global_reg_new(TCGType type, int reg, const char *name);
	270	TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset,
	271	const char *name);
	272	TCGv tcg_temp_new(TCGType type);
	273	char tcg_get_arg_str(TCGContext s, char *buf, int buf_size, TCGv arg);
c896fe29 FB	274
	275	#define TCG_CT_ALIAS 0x80
	276	#define TCG_CT_IALIAS 0x40
	277	#define TCG_CT_REG 0x01
	278	#define TCG_CT_CONST 0x02 /* any constant of register size */
	279
	280	typedef struct TCGArgConstraint {
5ff9d6a4 FB	281	uint16_t ct;
5ff9d6a4 FB	282	uint8_t alias_index;
c896fe29 FB	283	union {
	284	TCGRegSet regs;
	285	} u;
	286	} TCGArgConstraint;
	287
	288	#define TCG_MAX_OP_ARGS 16
	289
	290	#define TCG_OPF_BB_END 0x01 /* instruction defines the end of a basic
	291	block */
b03cce8e FB	292	#define TCG_OPF_CALL_CLOBBER 0x02 /* instruction clobbers call registers
	293	and potentially update globals. */
	294	#define TCG_OPF_SIDE_EFFECTS 0x04 /* instruction has side effects : it
	295	cannot be removed if its output
	296	are not used */
c896fe29 FB	297
	298	typedef struct TCGOpDef {
	299	const char *name;
	300	uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
	301	uint8_t flags;
	302	uint16_t copy_size;
	303	TCGArgConstraint *args_ct;
	304	int *sorted_args;
	305	} TCGOpDef;
	306
	307	typedef struct TCGTargetOpDef {
	308	int op;
	309	const char *args_ct_str[TCG_MAX_OP_ARGS];
	310	} TCGTargetOpDef;
	311
	312	extern TCGOpDef tcg_op_defs[];
	313
	314	void tcg_target_init(TCGContext *s);
b03cce8e	315	void tcg_target_qemu_prologue(TCGContext *s);
c896fe29 FB	316
	317	#define tcg_abort() \
	318	do {\
	319	fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
	320	abort();\
	321	} while (0)
	322
	323	void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);
	324
ac56dd48 PB	325	void tcg_gen_call(TCGContext *s, TCGv func, unsigned int flags,
	326	unsigned int nb_rets, const TCGv *rets,
	327	unsigned int nb_params, const TCGv *args1);
	328	void tcg_gen_shifti_i64(TCGv ret, TCGv arg1,
c896fe29 FB	329	int c, int right, int arith);
	330
	331	/* only used for debugging purposes */
	332	void tcg_register_helper(void func, const char name);
	333	#define TCG_HELPER(func) tcg_register_helper(func, #func)
	334	const char tcg_helper_get_name(TCGContext s, void *func);
	335	void tcg_dump_ops(TCGContext s, FILE outfile);
	336
	337	void dump_ops(const uint16_t opc_buf, const TCGArg opparam_buf);
ac56dd48 PB	338	TCGv tcg_const_i32(int32_t val);
ac56dd48 PB	339	TCGv tcg_const_i64(int64_t val);
c896fe29 FB	340
	341	#if TCG_TARGET_REG_BITS == 32
	342	#define tcg_const_ptr tcg_const_i32
	343	#define tcg_add_ptr tcg_add_i32
	344	#define tcg_sub_ptr tcg_sub_i32
	345	#else
	346	#define tcg_const_ptr tcg_const_i64
	347	#define tcg_add_ptr tcg_add_i64
	348	#define tcg_sub_ptr tcg_sub_i64
	349	#endif
	350
	351	void tcg_out_reloc(TCGContext s, uint8_t code_ptr, int type,
	352	int label_index, long addend);
	353	void tcg_reg_alloc_start(TCGContext *s);
	354	void tcg_reg_alloc_bb_end(TCGContext *s);
	355	void tcg_liveness_analysis(TCGContext *s);
	356	const TCGArg tcg_gen_code_op(TCGContext s, int opc, const TCGArg *args1,
	357	unsigned int dead_iargs);
	358
	359	const TCGArg dyngen_op(TCGContext s, int opc, const TCGArg *opparam_ptr);
	360
	361	/* tcg-runtime.c */
	362	int64_t tcg_helper_shl_i64(int64_t arg1, int64_t arg2);
	363	int64_t tcg_helper_shr_i64(int64_t arg1, int64_t arg2);
	364	int64_t tcg_helper_sar_i64(int64_t arg1, int64_t arg2);
	365	int64_t tcg_helper_div_i64(int64_t arg1, int64_t arg2);
	366	int64_t tcg_helper_rem_i64(int64_t arg1, int64_t arg2);
	367	uint64_t tcg_helper_divu_i64(uint64_t arg1, uint64_t arg2);
	368	uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2);
b03cce8e FB	369
	370	extern uint8_t code_gen_prologue[];
	371	#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM ()(void ))code_gen_prologue)(tb_ptr)