Handle new space constants on ia32 by using in a register in Lithium.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/35413008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17347 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 1c13e83..0800823 100644 (file)
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -561,29 +561,34 @@ LOperand* LChunkBuilder::UseAtStart(HValue* value) {
 }
 
 
+static inline bool CanBeImmediateConstant(HValue* value) {
+  return value->IsConstant() && HConstant::cast(value)->NotInNewSpace();
+}
+
+
 LOperand* LChunkBuilder::UseOrConstant(HValue* value) {
-  return value->IsConstant()
+  return CanBeImmediateConstant(value)
       ? chunk_->DefineConstantOperand(HConstant::cast(value))
       : Use(value);
 }
 
 
 LOperand* LChunkBuilder::UseOrConstantAtStart(HValue* value) {
-  return value->IsConstant()
+  return CanBeImmediateConstant(value)
       ? chunk_->DefineConstantOperand(HConstant::cast(value))
       : UseAtStart(value);
 }
 
 
 LOperand* LChunkBuilder::UseRegisterOrConstant(HValue* value) {
-  return value->IsConstant()
+  return CanBeImmediateConstant(value)
       ? chunk_->DefineConstantOperand(HConstant::cast(value))
       : UseRegister(value);
 }
 
 
 LOperand* LChunkBuilder::UseRegisterOrConstantAtStart(HValue* value) {
-  return value->IsConstant()
+  return CanBeImmediateConstant(value)
       ? chunk_->DefineConstantOperand(HConstant::cast(value))
       : UseRegisterAtStart(value);
 }