Version 3.7.10
Set maximum length of FixedArray in terms of elements instead an absolute number of bytes. (Chromium issue 103103)
Stability and performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@10052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 40d5dec..841be73 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -4163,11 +4163,14 @@
void LCodeGen::DoObjectLiteral(LObjectLiteral* instr) {
ASSERT(ToRegister(instr->context()).is(esi));
+ Handle<FixedArray> constant_properties =
+ instr->hydrogen()->constant_properties();
+
// Setup the parameters to the stub/runtime call.
__ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
__ push(FieldOperand(eax, JSFunction::kLiteralsOffset));
__ push(Immediate(Smi::FromInt(instr->hydrogen()->literal_index())));
- __ push(Immediate(instr->hydrogen()->constant_properties()));
+ __ push(Immediate(constant_properties));
int flags = instr->hydrogen()->fast_elements()
? ObjectLiteral::kFastElements
: ObjectLiteral::kNoFlags;
@@ -4176,11 +4179,16 @@
: ObjectLiteral::kNoFlags;
__ push(Immediate(Smi::FromInt(flags)));
- // Pick the right runtime function to call.
+ // Pick the right runtime function or stub to call.
+ int properties_count = constant_properties->length() / 2;
if (instr->hydrogen()->depth() > 1) {
CallRuntime(Runtime::kCreateObjectLiteral, 4, instr);
- } else {
+ } else if (flags != ObjectLiteral::kFastElements ||
+ properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) {
CallRuntime(Runtime::kCreateObjectLiteralShallow, 4, instr);
+ } else {
+ FastCloneShallowObjectStub stub(properties_count);
+ CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
}
}