void JITCompiler::jitAssertIsJSDouble(GPRReg gpr)
{
Jump checkTIInt32 = branchPtr(AboveOrEqual, gpr, GPRInfo::tagTypeNumberRegister);
Jump checkTINumber = branchTestPtr(MacroAssembler::NonZero, gpr, GPRInfo::tagTypeNumberRegister);
checkTIInt32.link(this);
breakpoint();
checkTINumber.link(this);
}
void JIT::privateCompileClosureCall(CallLinkInfo* callLinkInfo, CodeBlock* calleeCodeBlock, Structure* expectedStructure, ExecutableBase* expectedExecutable, MacroAssemblerCodePtr codePtr)
{
JumpList slowCases;
slowCases.append(branchTestPtr(NonZero, regT0, tagMaskRegister));
slowCases.append(branchPtr(NotEqual, Address(regT0, JSCell::structureOffset()), TrustedImmPtr(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_globalData, this, m_codeBlock);
patchBuffer.link(call, FunctionPtr(codePtr.executableAddress()));
patchBuffer.link(done, callLinkInfo->hotPathOther.labelAtOffset(0));
patchBuffer.link(slow, CodeLocationLabel(m_globalData->getCTIStub(virtualCallGenerator).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(*calleeCodeBlock).data())),
*m_globalData, 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_globalData->getCTIStub(virtualCallGenerator).code());
callLinkInfo->stub = stubRoutine.release();
}
void AssemblyHelpers::jitAssertIsNull(GPRReg gpr)
{
Jump checkNull = branchTestPtr(Zero, gpr);
abortWithReason(AHIsNotNull);
checkNull.link(this);
}
void AssemblyHelpers::jitAssertHasValidCallFrame()
{
Jump checkCFR = branchTestPtr(Zero, GPRInfo::callFrameRegister, TrustedImm32(7));
abortWithReason(AHCallFrameMisaligned);
checkCFR.link(this);
}
void JITCompiler::jitAssertIsJSNumber(GPRReg gpr)
{
Jump checkTINumber = branchTestPtr(MacroAssembler::NonZero, gpr, GPRInfo::tagTypeNumberRegister);
breakpoint();
checkTINumber.link(this);
}
void AssemblyHelpers::jitAssertIsCell(GPRReg gpr)
{
Jump checkCell = branchTestPtr(MacroAssembler::Zero, gpr, GPRInfo::tagMaskRegister);
breakpoint();
checkCell.link(this);
}