Version 2.2.15
Add an API to control the disposal of external string resources.
Add missing initialization of a couple of variables which makes some compilers complaint when compiling with -Werror.
Improve performance on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@4809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 5caa4c4..b83f9bc 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -296,6 +296,25 @@
}
+void MacroAssembler::IsObjectJSObjectType(Register heap_object,
+ Register map,
+ Register scratch,
+ Label* fail) {
+ mov(map, FieldOperand(heap_object, HeapObject::kMapOffset));
+ IsInstanceJSObjectType(map, scratch, fail);
+}
+
+
+void MacroAssembler::IsInstanceJSObjectType(Register map,
+ Register scratch,
+ Label* fail) {
+ movzx_b(scratch, FieldOperand(map, Map::kInstanceTypeOffset));
+ sub(Operand(scratch), Immediate(FIRST_JS_OBJECT_TYPE));
+ cmp(scratch, LAST_JS_OBJECT_TYPE - FIRST_JS_OBJECT_TYPE);
+ j(above, fail);
+}
+
+
void MacroAssembler::FCmp() {
if (CpuFeatures::IsSupported(CMOV)) {
fucomip();