void JIT::privateCompileClosureCall(CallLinkInfo* callLinkInfo, CodeBlock* calleeCodeBlock, Structure* expectedStructure, ExecutableBase* expectedExecutable, MacroAssemblerCodePtr codePtr)
{
JumpList slowCases;
slowCases.append(branchTestPtr(NonZero, regT0, tagMaskRegister));
slowCases.append(branchStructure(NotEqual, Address(regT0, JSCell::structureIDOffset()), expectedStructure));
slowCases.append(branchPtr(NotEqual, Address(regT0, JSFunction::offsetOfExecutable()), TrustedImmPtr(expectedExecutable)));
loadPtr(Address(regT0, JSFunction::offsetOfScopeChain()), regT1);
emitPutToCallFrameHeader(regT1, JSStack::ScopeChain);
Call call = nearCall();
Jump done = jump();
slowCases.link(this);
move(TrustedImmPtr(callLinkInfo->callReturnLocation.executableAddress()), regT2);
restoreReturnAddressBeforeReturn(regT2);
Jump slow = jump();
LinkBuffer patchBuffer(*m_vm, this, m_codeBlock);
patchBuffer.link(call, FunctionPtr(codePtr.executableAddress()));
patchBuffer.link(done, callLinkInfo->hotPathOther.labelAtOffset(0));
patchBuffer.link(slow, CodeLocationLabel(m_vm->getCTIStub(virtualCallThunkGenerator).code()));
RefPtr<ClosureCallStubRoutine> stubRoutine = adoptRef(new ClosureCallStubRoutine(
FINALIZE_CODE(
patchBuffer,
("Baseline closure call stub for %s, return point %p, target %p (%s)",
toCString(*m_codeBlock).data(),
callLinkInfo->hotPathOther.labelAtOffset(0).executableAddress(),
codePtr.executableAddress(),
toCString(pointerDump(calleeCodeBlock)).data())),
*m_vm, m_codeBlock->ownerExecutable(), expectedStructure, expectedExecutable,
callLinkInfo->codeOrigin));
RepatchBuffer repatchBuffer(m_codeBlock);
repatchBuffer.replaceWithJump(
RepatchBuffer::startOfBranchPtrWithPatchOnRegister(callLinkInfo->hotPathBegin),
CodeLocationLabel(stubRoutine->code().code()));
repatchBuffer.relink(callLinkInfo->callReturnLocation, m_vm->getCTIStub(virtualCallThunkGenerator).code());
callLinkInfo->stub = stubRoutine.release();
}
AssemblyHelpers::JumpList AssemblyHelpers::branchIfNotType(
JSValueRegs regs, GPRReg tempGPR, const InferredType::Descriptor& descriptor, TagRegistersMode mode)
{
AssemblyHelpers::JumpList result;
switch (descriptor.kind()) {
case InferredType::Bottom:
result.append(jump());
break;
case InferredType::Boolean:
result.append(branchIfNotBoolean(regs, tempGPR));
break;
case InferredType::Other:
result.append(branchIfNotOther(regs, tempGPR));
break;
case InferredType::Int32:
result.append(branchIfNotInt32(regs, mode));
break;
case InferredType::Number:
result.append(branchIfNotNumber(regs, tempGPR, mode));
break;
case InferredType::String:
result.append(branchIfNotCell(regs, mode));
result.append(branchIfNotString(regs.payloadGPR()));
break;
case InferredType::ObjectWithStructure:
result.append(branchIfNotCell(regs, mode));
result.append(
branchStructure(
NotEqual,
Address(regs.payloadGPR(), JSCell::structureIDOffset()),
descriptor.structure()));
break;
case InferredType::ObjectWithStructureOrOther: {
Jump ok = branchIfOther(regs, tempGPR);
result.append(branchIfNotCell(regs, mode));
result.append(
branchStructure(
NotEqual,
Address(regs.payloadGPR(), JSCell::structureIDOffset()),
descriptor.structure()));
ok.link(this);
break;
}
case InferredType::Object:
result.append(branchIfNotCell(regs, mode));
result.append(branchIfNotObject(regs.payloadGPR()));
break;
case InferredType::ObjectOrOther: {
Jump ok = branchIfOther(regs, tempGPR);
result.append(branchIfNotCell(regs, mode));
result.append(branchIfNotObject(regs.payloadGPR()));
ok.link(this);
break;
}
case InferredType::Top:
break;
}
return result;
}
