Version 1.3.6
Add support for forceful termination of JavaScript execution.
Add low memory notification to the API. The embedding host can signal a low memory situation to V8.
Changed the handling of global handles (persistent handles in the API sense) to avoid issues regarding allocation of new global handles during weak handle callbacks.
Changed the growth policy of the young space.
Fixed a GC issue introduced in version 1.3.5.
git-svn-id: http://v8.googlecode.com/svn/trunk@3024 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 637428d..2689e38 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -63,6 +63,13 @@
}
+void MacroAssembler::CompareRoot(Operand with,
+ Heap::RootListIndex index) {
+ LoadRoot(kScratchRegister, index);
+ cmpq(with, kScratchRegister);
+}
+
+
static void RecordWriteHelper(MacroAssembler* masm,
Register object,
Register addr,
@@ -332,17 +339,16 @@
// should remove this need and make the runtime routine entry code
// smarter.
movq(rax, Immediate(num_arguments));
- JumpToBuiltin(ext, result_size);
+ JumpToRuntime(ext, result_size);
}
-void MacroAssembler::JumpToBuiltin(const ExternalReference& ext,
+void MacroAssembler::JumpToRuntime(const ExternalReference& ext,
int result_size) {
// Set the entry point and jump to the C entry runtime stub.
movq(rbx, ext);
CEntryStub ces(result_size);
- movq(kScratchRegister, ces.GetCode(), RelocInfo::CODE_TARGET);
- jmp(kScratchRegister);
+ jmp(ces.GetCode(), RelocInfo::CODE_TARGET);
}
@@ -357,7 +363,6 @@
if (!resolved) {
uint32_t flags =
Bootstrapper::FixupFlagsArgumentsCount::encode(argc) |
- Bootstrapper::FixupFlagsIsPCRelative::encode(false) |
Bootstrapper::FixupFlagsUseCodeObject::encode(true);
Unresolved entry = { pc_offset() - sizeof(intptr_t), flags, name };
unresolved_.Add(entry);
@@ -519,6 +524,18 @@
}
+void MacroAssembler::JumpIfSmiGreaterEqualsConstant(Register src,
+ int constant,
+ Label* on_greater_equals) {
+ if (Smi::IsValid(constant)) {
+ Condition are_greater_equal = CheckSmiGreaterEqualsConstant(src, constant);
+ j(are_greater_equal, on_greater_equals);
+ } else if (constant < Smi::kMinValue) {
+ jmp(on_greater_equals);
+ }
+}
+
+
void MacroAssembler::JumpIfNotValidSmiValue(Register src, Label* on_invalid) {
Condition is_valid = CheckInteger32ValidSmiValue(src);
j(ReverseCondition(is_valid), on_invalid);
@@ -602,6 +619,22 @@
}
+Condition MacroAssembler::CheckSmiGreaterEqualsConstant(Register src,
+ int constant) {
+ if (constant == 0) {
+ testl(src, Immediate(static_cast<uint32_t>(0x80000000u)));
+ return positive;
+ }
+ if (Smi::IsValid(constant)) {
+ cmpl(src, Immediate(Smi::FromInt(constant)));
+ return greater_equal;
+ }
+ // Can't be equal.
+ UNREACHABLE();
+ return no_condition;
+}
+
+
Condition MacroAssembler::CheckInteger32ValidSmiValue(Register src) {
// A 32-bit integer value can be converted to a smi if it is in the
// range [-2^30 .. 2^30-1]. That is equivalent to having its 32-bit
@@ -1235,17 +1268,8 @@
void MacroAssembler::Jump(Handle<Code> code_object, RelocInfo::Mode rmode) {
- ASSERT(RelocInfo::IsCodeTarget(rmode));
- movq(kScratchRegister, code_object, rmode);
-#ifdef DEBUG
- Label target;
- bind(&target);
-#endif
- jmp(kScratchRegister);
-#ifdef DEBUG
- ASSERT_EQ(kCallTargetAddressOffset,
- SizeOfCodeGeneratedSince(&target) + kPointerSize);
-#endif
+ // TODO(X64): Inline this
+ jmp(code_object, rmode);
}
@@ -1264,17 +1288,7 @@
void MacroAssembler::Call(Handle<Code> code_object, RelocInfo::Mode rmode) {
ASSERT(RelocInfo::IsCodeTarget(rmode));
WriteRecordedPositions();
- movq(kScratchRegister, code_object, rmode);
-#ifdef DEBUG
- // Patch target is kPointer size bytes *before* target label.
- Label target;
- bind(&target);
-#endif
- call(kScratchRegister);
-#ifdef DEBUG
- ASSERT_EQ(kCallTargetAddressOffset,
- SizeOfCodeGeneratedSince(&target) + kPointerSize);
-#endif
+ call(code_object, rmode);
}
@@ -1541,7 +1555,6 @@
if (!resolved) {
uint32_t flags =
Bootstrapper::FixupFlagsArgumentsCount::encode(argc) |
- Bootstrapper::FixupFlagsIsPCRelative::encode(false) |
Bootstrapper::FixupFlagsUseCodeObject::encode(false);
Unresolved entry =
{ pc_offset() - kCallTargetAddressOffset, flags, name };
@@ -2024,12 +2037,12 @@
}
-void MacroAssembler::AllocateObjectInNewSpace(int object_size,
- Register result,
- Register result_end,
- Register scratch,
- Label* gc_required,
- AllocationFlags flags) {
+void MacroAssembler::AllocateInNewSpace(int object_size,
+ Register result,
+ Register result_end,
+ Register scratch,
+ Label* gc_required,
+ AllocationFlags flags) {
ASSERT(!result.is(result_end));
// Load address of new object into result.
@@ -2053,14 +2066,14 @@
}
-void MacroAssembler::AllocateObjectInNewSpace(int header_size,
- ScaleFactor element_size,
- Register element_count,
- Register result,
- Register result_end,
- Register scratch,
- Label* gc_required,
- AllocationFlags flags) {
+void MacroAssembler::AllocateInNewSpace(int header_size,
+ ScaleFactor element_size,
+ Register element_count,
+ Register result,
+ Register result_end,
+ Register scratch,
+ Label* gc_required,
+ AllocationFlags flags) {
ASSERT(!result.is(result_end));
// Load address of new object into result.
@@ -2084,12 +2097,12 @@
}
-void MacroAssembler::AllocateObjectInNewSpace(Register object_size,
- Register result,
- Register result_end,
- Register scratch,
- Label* gc_required,
- AllocationFlags flags) {
+void MacroAssembler::AllocateInNewSpace(Register object_size,
+ Register result,
+ Register result_end,
+ Register scratch,
+ Label* gc_required,
+ AllocationFlags flags) {
// Load address of new object into result.
LoadAllocationTopHelper(result, result_end, scratch, flags);