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MIPS: add a default value for return value

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Port r15024 (1a76177)

BUG=

Review URL: https://codereview.chromium.org/16005015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15047 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
palfia@homejinni.com 2013-06-10 18:07:28 +00:00
parent 5cf0cba71a
commit b7e06629f3
1 changed files with 14 additions and 11 deletions
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25
src/mips/stub-cache-mips.cc
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@ -883,11 +883,12 @@ static void GenerateFastApiDirectCall(MacroAssembler* masm,
// -- sp[4] : callee JS function
// -- sp[8] : call data
// -- sp[12] : isolate
// -- sp[16] : ReturnValue
// -- sp[20] : last JS argument
// -- sp[16] : ReturnValue default value
// -- sp[20] : ReturnValue
// -- sp[24] : last JS argument
// -- ...
// -- sp[(argc + 4) * 4] : first JS argument
// -- sp[(argc + 5) * 4] : receiver
// -- sp[(argc + 5) * 4] : first JS argument
// -- sp[(argc + 6) * 4] : receiver
// -----------------------------------
// Get the function and setup the context.
Handle<JSFunction> function = optimization.constant_function();
@ -905,15 +906,16 @@ static void GenerateFastApiDirectCall(MacroAssembler* masm,
}
__ li(t3, Operand(ExternalReference::isolate_address(masm->isolate())));
// Store JS function, call data, isolate and ReturnValue.
// Store JS function, call data, isolate ReturnValue default and ReturnValue.
__ sw(t1, MemOperand(sp, 1 * kPointerSize));
__ sw(t2, MemOperand(sp, 2 * kPointerSize));
__ sw(t3, MemOperand(sp, 3 * kPointerSize));
__ LoadRoot(t1, Heap::kUndefinedValueRootIndex);
__ sw(t1, MemOperand(sp, 4 * kPointerSize));
__ sw(t1, MemOperand(sp, 5 * kPointerSize));
// Prepare arguments.
__ Addu(a2, sp, Operand(4 * kPointerSize));
__ Addu(a2, sp, Operand(5 * kPointerSize));
// Allocate the v8::Arguments structure in the arguments' space since
// it's not controlled by GC.
@ -1435,13 +1437,14 @@ void BaseLoadStubCompiler::GenerateLoadCallback(
} else {
__ li(scratch3(), Handle<Object>(callback->data(), isolate()));
}
__ Subu(sp, sp, 5 * kPointerSize);
__ sw(reg, MemOperand(sp, 4 * kPointerSize));
__ sw(scratch3(), MemOperand(sp, 3 * kPointerSize));
__ Subu(sp, sp, 6 * kPointerSize);
__ sw(reg, MemOperand(sp, 5 * kPointerSize));
__ sw(scratch3(), MemOperand(sp, 4 * kPointerSize));
__ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex);
__ sw(scratch3(), MemOperand(sp, 3 * kPointerSize));
__ sw(scratch3(), MemOperand(sp, 2 * kPointerSize));
__ li(scratch4(),
Operand(ExternalReference::isolate_address(isolate())));
__ sw(scratch3(), MemOperand(sp, 2 * kPointerSize));
__ sw(scratch4(), MemOperand(sp, 1 * kPointerSize));
__ sw(name(), MemOperand(sp, 0 * kPointerSize));
@ -1481,7 +1484,7 @@ void BaseLoadStubCompiler::GenerateLoadCallback(
__ CallApiFunctionAndReturn(ref,
kStackUnwindSpace,
returns_handle,
4);
5);
}