diff mbox series

[RFC,v2,08/39] target/i386: make variable b1 const

Message ID 20190810041255.6820-9-jan.bobek@gmail.com (mailing list archive)
State New, archived
Headers show
Series rewrite MMX/SSE instruction translation | expand

Commit Message

Jan Bobek Aug. 10, 2019, 4:12 a.m. UTC 
The variable b1 does not change value once assigned. Make this fact
explicit by marking it const.

Signed-off-by: Jan Bobek <jan.bobek@gmail.com>
---
 target/i386/translate.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

Comments

Richard Henderson Aug. 13, 2019, 4:49 a.m. UTC | #1 
On 8/10/19 5:12 AM, Jan Bobek wrote:
> The variable b1 does not change value once assigned. Make this fact
> explicit by marking it const.
> 
> Signed-off-by: Jan Bobek <jan.bobek@gmail.com>
> ---
>  target/i386/translate.c | 15 ++++++---------
>  1 file changed, 6 insertions(+), 9 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~
diff mbox series

Patch

diff --git a/target/i386/translate.c b/target/i386/translate.c
index b1ba2fc3e5..8bf39b73c4 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -3042,7 +3042,7 @@  static const struct SSEOpHelper_eppi sse_op_table7[256] = {
 
 static void gen_sse(CPUX86State *env, DisasContext *s, int b)
 {
-    int b1, op1_offset, op2_offset, is_xmm, val;
+    int op1_offset, op2_offset, is_xmm, val;
     int modrm, mod, rm, reg;
     SSEFunc_0_epp sse_fn_epp;
     SSEFunc_0_eppi sse_fn_eppi;
@@ -3051,14 +3051,11 @@  static void gen_sse(CPUX86State *env, DisasContext *s, int b)
     TCGMemOp ot;
 
     b &= 0xff;
-    if (s->prefix & PREFIX_DATA)
-        b1 = 1;
-    else if (s->prefix & PREFIX_REPZ)
-        b1 = 2;
-    else if (s->prefix & PREFIX_REPNZ)
-        b1 = 3;
-    else
-        b1 = 0;
+    const int b1 =
+        s->prefix & PREFIX_DATA ? 1
+        : s->prefix & PREFIX_REPZ ? 2
+        : s->prefix & PREFIX_REPNZ ? 3
+        : 0;
     sse_fn_epp = sse_op_table1[b][b1];
     if (!sse_fn_epp) {
         goto unknown_op;