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; }