translate-all: consolidate tb init in tb_gen_code

We are partially initializing tb in tb_alloc. Instead, fully
initialize it in tb_gen_code, which is tb_alloc's only caller.

This saves an unnecessary write to tb->cflags.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <1497038122-26364-1-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/translate-all.c b/translate-all.c
index bb094ad0dbc877d8800ae44dc518d3b740e2f34a..46c5592f3aec1a0cb7bf58d8ab4e1f4311c78d3d 100644 (file)
--- a/translate-all.c
+++ b/translate-all.c
@@ -843,9 +843,6 @@ static TranslationBlock *tb_alloc(target_ulong pc)
         ctx->tbs = g_renew(TranslationBlock *, ctx->tbs, ctx->tbs_size);
     }
     ctx->tbs[ctx->nb_tbs++] = tb;
-    tb->pc = pc;
-    tb->cflags = 0;
-    tb->invalid = false;
     return tb;
 }
 
@@ -1289,9 +1286,11 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
 
     gen_code_buf = tcg_ctx.code_gen_ptr;
     tb->tc_ptr = gen_code_buf;
+    tb->pc = pc;
     tb->cs_base = cs_base;
     tb->flags = flags;
     tb->cflags = cflags;
+    tb->invalid = false;
 
 #ifdef CONFIG_PROFILER
     tcg_ctx.tb_count1++; /* includes aborted translations because of