From 15c1d23fbc8f910f3bd11b34bae3d5a7ce0f0af1 Mon Sep 17 00:00:00 2001
From: "jkummerow@chromium.org"
 <jkummerow@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Fri, 2 Aug 2013 08:55:26 +0000
Subject: [PATCH] Use test(reg, imm) when the operand is a register on ia32

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/21521002

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16020 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---
 src/ia32/assembler-ia32.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ia32/assembler-ia32.cc b/src/ia32/assembler-ia32.cc
index e0ae006655..7bea373025 100644
--- a/src/ia32/assembler-ia32.cc
+++ b/src/ia32/assembler-ia32.cc
@@ -1227,6 +1227,10 @@ void Assembler::test_b(Register reg, const Operand& op) {
 
 
 void Assembler::test(const Operand& op, const Immediate& imm) {
+  if (op.is_reg_only()) {
+    test(op.reg(), imm);
+    return;
+  }
   EnsureSpace ensure_space(this);
   EMIT(0xF7);
   emit_operand(eax, op);