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MIPS: Port function call type-feedback cells to x64 and ARM.

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Port r11391 (789b1078)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10124013
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11401 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
mstarzinger@chromium.org 2012-04-20 12:51:08 +00:00
parent 91ccfce2d9
commit 29f0463536
2 changed files with 31 additions and 6 deletions
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25
src/mips/code-stubs-mips.cc
View File

@ -5402,9 +5402,9 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
__ LoadRoot(at, Heap::kTheHoleValueRootIndex);
__ Branch(&call, ne, t0, Operand(at));
// Patch the receiver on the stack with the global receiver object.
__ lw(a2, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
__ lw(a2, FieldMemOperand(a2, GlobalObject::kGlobalReceiverOffset));
__ sw(a2, MemOperand(sp, argc_ * kPointerSize));
__ lw(a3, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
__ lw(a3, FieldMemOperand(a3, GlobalObject::kGlobalReceiverOffset));
__ sw(a3, MemOperand(sp, argc_ * kPointerSize));
__ bind(&call);
}
@ -5412,8 +5412,12 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
// a1: pushed function (to be verified)
__ JumpIfSmi(a1, &non_function);
// Get the map of the function object.
__ GetObjectType(a1, a2, a2);
__ Branch(&slow, ne, a2, Operand(JS_FUNCTION_TYPE));
__ GetObjectType(a1, a3, a3);
__ Branch(&slow, ne, a3, Operand(JS_FUNCTION_TYPE));
if (RecordCallTarget()) {
GenerateRecordCallTarget(masm);
}
// Fast-case: Invoke the function now.
// a1: pushed function
@ -5438,8 +5442,17 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
// Slow-case: Non-function called.
__ bind(&slow);
if (RecordCallTarget()) {
// If there is a call target cache, mark it megamorphic in the
// non-function case. MegamorphicSentinel is an immortal immovable
// object (undefined) so no write barrier is needed.
ASSERT_EQ(*TypeFeedbackCells::MegamorphicSentinel(masm->isolate()),
masm->isolate()->heap()->undefined_value());
__ LoadRoot(at, Heap::kUndefinedValueRootIndex);
__ sw(at, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset));
}
// Check for function proxy.
__ Branch(&non_function, ne, a2, Operand(JS_FUNCTION_PROXY_TYPE));
__ Branch(&non_function, ne, a3, Operand(JS_FUNCTION_PROXY_TYPE));
__ push(a1); // Put proxy as additional argument.
__ li(a0, Operand(argc_ + 1, RelocInfo::NONE));
__ li(a2, Operand(0, RelocInfo::NONE));

12
src/mips/full-codegen-mips.cc
View File

@ -2388,6 +2388,18 @@ void FullCodeGenerator::EmitCallWithStub(Call* expr, CallFunctionFlags flags) {
}
// Record source position for debugger.
SetSourcePosition(expr->position());
// Record call targets in unoptimized code, but not in the snapshot.
if (!Serializer::enabled()) {
flags = static_cast<CallFunctionFlags>(flags | RECORD_CALL_TARGET);
Handle<Object> uninitialized =
TypeFeedbackCells::UninitializedSentinel(isolate());
Handle<JSGlobalPropertyCell> cell =
isolate()->factory()->NewJSGlobalPropertyCell(uninitialized);
RecordTypeFeedbackCell(expr->id(), cell);
__ li(a2, Operand(cell));
}
CallFunctionStub stub(arg_count, flags);
__ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize));
__ CallStub(&stub);