Merge remote-tracking branch 'remotes/stsquad/tags/pull-ci-updates-210617-2' into...

[qemu.git] / tcg / tcg-runtime.c

diff --git a/tcg/tcg-runtime.c b/tcg/tcg-runtime.c
index 7fa90ce50852ad553ef6dfe899a0d85517bcdfc5..ec3a34e4615524c2d733b645c3245959afdbbfcd 100644 (file)
--- a/tcg/tcg-runtime.c
+++ b/tcg/tcg-runtime.c
@@ -149,23 +149,23 @@ void *HELPER(lookup_tb_ptr)(CPUArchState *env, target_ulong addr)
     CPUState *cpu = ENV_GET_CPU(env);
     TranslationBlock *tb;
     target_ulong cs_base, pc;
-    uint32_t flags;
-
-    tb = atomic_rcu_read(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(addr)]);
-    if (likely(tb)) {
-        cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
-        if (likely(tb->pc == addr && tb->cs_base == cs_base &&
-                   tb->flags == flags)) {
-            goto found;
-        }
+    uint32_t flags, addr_hash;
+
+    addr_hash = tb_jmp_cache_hash_func(addr);
+    tb = atomic_rcu_read(&cpu->tb_jmp_cache[addr_hash]);
+    cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
+
+    if (unlikely(!(tb
+                   && tb->pc == addr
+                   && tb->cs_base == cs_base
+                   && tb->flags == flags))) {
         tb = tb_htable_lookup(cpu, addr, cs_base, flags);
-        if (likely(tb)) {
-            atomic_set(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(addr)], tb);
-            goto found;
+        if (!tb) {
+            return tcg_ctx.code_gen_epilogue;
         }
+        atomic_set(&cpu->tb_jmp_cache[addr_hash], tb);
     }
-    return tcg_ctx.code_gen_epilogue;
- found:
+
     qemu_log_mask_and_addr(CPU_LOG_EXEC, addr,
                            "Chain %p [%d: " TARGET_FMT_lx "] %s\n",
                            tb->tc_ptr, cpu->cpu_index, addr,