[Qemu-ppc] [PATCH 4/6] target-ppc: Clean Up mullw

[Tom Musta]

Eliminate the unecessary ext32s TCG operation and make the multiplication
operation explicitly 32 bit.

Signed-off-by: Tom Musta <address@hidden>
Suggested-by: Richard Henderson <address@hidden>
---
 target-ppc/translate.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 57cb381..ced295f 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -1138,9 +1138,8 @@ static void gen_mullw(DisasContext *ctx)
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 #else
-    tcg_gen_mul_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)],
-                   cpu_gpr[rB(ctx->opcode)]);
-    tcg_gen_ext32s_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rD(ctx->opcode)]);
+    tcg_gen_mul_i32(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)],
+                    cpu_gpr[rB(ctx->opcode)]);
 #endif
     if (unlikely(Rc(ctx->opcode) != 0))
         gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
-- 
1.7.1