Version 1.3.1.
Speed improvements to accessors and interceptors.
Added support for capturing stack information on custom errors.
Added support for morphing an object into a pixel array where its indexed properties are stored in an external byte array. Values written are always clamped to the 0..255 interval.
Profiler on x64 now handles C/C++ functions from shared libraries.
Changed the debugger to avoid stepping into function.call/apply if the function is a built-in.
Initial implementation of constructor heap profile for JS objects.
More fine grained control of profiling aspects through the API.
Optimized the called as constructor check for API calls.
git-svn-id: http://v8.googlecode.com/svn/trunk@2592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 457011b..f58e1cd 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -71,9 +71,9 @@
Register op,
Label* then_label) {
Label ok;
- testq(result, result);
+ testl(result, result);
j(not_zero, &ok);
- testq(op, op);
+ testl(op, op);
j(sign, then_label);
bind(&ok);
}
@@ -151,6 +151,13 @@
void MacroAssembler::TailCallRuntime(ExternalReference const& ext,
int num_arguments) {
+ // ----------- S t a t e -------------
+ // -- rsp[0] : return address
+ // -- rsp[8] : argument num_arguments - 1
+ // ...
+ // -- rsp[8 * num_arguments] : argument 0 (receiver)
+ // -----------------------------------
+
// TODO(1236192): Most runtime routines don't need the number of
// arguments passed in because it is constant. At some point we
// should remove this need and make the runtime routine entry code
@@ -311,6 +318,17 @@
}
+void MacroAssembler::Push(Smi* source) {
+ if (IsUnsafeSmi(source)) {
+ LoadUnsafeSmi(kScratchRegister, source);
+ push(kScratchRegister);
+ } else {
+ int32_t smi = static_cast<int32_t>(reinterpret_cast<intptr_t>(source));
+ push(Immediate(smi));
+ }
+}
+
+
void MacroAssembler::Jump(ExternalReference ext) {
movq(kScratchRegister, ext);
jmp(kScratchRegister);
@@ -356,6 +374,7 @@
ASSERT(RelocInfo::IsCodeTarget(rmode));
movq(kScratchRegister, code_object, rmode);
#ifdef DEBUG
+ // Patch target is kPointer size bytes *before* target label.
Label target;
bind(&target);
#endif