From 8ad8ff10e313f0034dc56553c8cc4ec92f116baf Mon Sep 17 00:00:00 2001
From: "haitao.feng@intel.com"
 <haitao.feng@intel.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Mon, 14 Oct 2013 06:31:01 +0000
Subject: [PATCH] Remove unnecessary MarkAsDeferredCalling when changing a
 tagged value to double

R=danno@chromium.org

Review URL: https://codereview.chromium.org/25373003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---
 src/arm/lithium-arm.cc   | 1 -
 src/ia32/lithium-ia32.cc | 1 -
 src/mips/lithium-mips.cc | 1 -
 src/x64/lithium-x64.cc   | 1 -
 4 files changed, 4 deletions(-)

diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index ff14172e14..ac1a03ed84 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1946,7 +1946,6 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
   }
   if (from.IsTagged()) {
     if (to.IsDouble()) {
-      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       LNumberUntagD* res = new(zone()) LNumberUntagD(value);
       return AssignEnvironment(DefineAsRegister(res));
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index ba225eff8a..e9bdfd06e3 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1926,7 +1926,6 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
   // building a stack frame.
   if (from.IsTagged()) {
     if (to.IsDouble()) {
-      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       // Temp register only necessary for minus zero check.
       LOperand* temp = TempRegister();
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 363c827f50..b3cd74c27d 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -1866,7 +1866,6 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
   }
   if (from.IsTagged()) {
     if (to.IsDouble()) {
-      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       LNumberUntagD* res = new(zone()) LNumberUntagD(value);
       return AssignEnvironment(DefineAsRegister(res));
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index d5d6436589..9fb8307983 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1822,7 +1822,6 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
   // building a stack frame.
   if (from.IsTagged()) {
     if (to.IsDouble()) {
-      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       LNumberUntagD* res = new(zone()) LNumberUntagD(value);
       return AssignEnvironment(DefineAsRegister(res));