From: lrn@chromium.org <lrn@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Wed, 11 Aug 2010 14:23:12 +0000 (+0000)
Subject: X64: Make SmiCompare use the Smi-register when possible.
X-Git-Tag: upstream/4.7.83~21375
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fb039823ce44b134fd5f24f50c701858db82395e;p=platform%2Fupstream%2Fv8.git

X64: Make SmiCompare use the Smi-register when possible.

Review URL: http://codereview.chromium.org/3104007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index e744d53..0e15a94 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -782,8 +782,8 @@ void MacroAssembler::SmiCompare(Register dst, Smi* src) {
   if (src->value() == 0) {
     testq(dst, dst);
   } else {
-    Move(kScratchRegister, src);
-    cmpq(dst, kScratchRegister);
+    Register constant_reg = GetSmiConstant(src);
+    cmpq(dst, constant_reg);
   }
 }