Version 2.0.6
Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor,
GetOwnProperty, FromPropertyDescriptor.
Fixed Mac x64 build errors.
Improved performance of some math and string operations.
Improved performance of some regexp operations.
Improved performance of context creation.
Improved performance of hash tables.
git-svn-id: http://v8.googlecode.com/svn/trunk@3608 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 3ecbcee..d7c7d3a 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -325,6 +325,17 @@
}
+Condition MacroAssembler::IsObjectStringType(Register heap_object,
+ Register map,
+ Register instance_type) {
+ mov(map, FieldOperand(heap_object, HeapObject::kMapOffset));
+ movzx_b(instance_type, FieldOperand(map, Map::kInstanceTypeOffset));
+ ASSERT(kNotStringTag != 0);
+ test(instance_type, Immediate(kIsNotStringMask));
+ return zero;
+}
+
+
void MacroAssembler::FCmp() {
if (CpuFeatures::IsSupported(CMOV)) {
fucomip();
@@ -729,13 +740,13 @@
cmp(result_end, Operand::StaticVariable(new_space_allocation_limit));
j(above, gc_required, not_taken);
- // Update allocation top.
- UpdateAllocationTopHelper(result_end, scratch);
-
// Tag result if requested.
if ((flags & TAG_OBJECT) != 0) {
- or_(Operand(result), Immediate(kHeapObjectTag));
+ lea(result, Operand(result, kHeapObjectTag));
}
+
+ // Update allocation top.
+ UpdateAllocationTopHelper(result_end, scratch);
}
@@ -759,13 +770,13 @@
cmp(result_end, Operand::StaticVariable(new_space_allocation_limit));
j(above, gc_required);
- // Update allocation top.
- UpdateAllocationTopHelper(result_end, scratch);
-
// Tag result if requested.
if ((flags & TAG_OBJECT) != 0) {
- or_(Operand(result), Immediate(kHeapObjectTag));
+ lea(result, Operand(result, kHeapObjectTag));
}
+
+ // Update allocation top.
+ UpdateAllocationTopHelper(result_end, scratch);
}
@@ -790,13 +801,13 @@
cmp(result_end, Operand::StaticVariable(new_space_allocation_limit));
j(above, gc_required, not_taken);
- // Update allocation top.
- UpdateAllocationTopHelper(result_end, scratch);
-
// Tag result if requested.
if ((flags & TAG_OBJECT) != 0) {
- or_(Operand(result), Immediate(kHeapObjectTag));
+ lea(result, Operand(result, kHeapObjectTag));
}
+
+ // Update allocation top.
+ UpdateAllocationTopHelper(result_end, scratch);
}