void reifyInlinedCallFrames(CCallHelpers& jit, const OSRExitBase& exit)
{
ASSERT(jit.baselineCodeBlock()->jitType() == JITCode::BaselineJIT);
jit.storePtr(AssemblyHelpers::TrustedImmPtr(jit.baselineCodeBlock()), AssemblyHelpers::addressFor((VirtualRegister)JSStack::CodeBlock));
CodeOrigin codeOrigin;
for (codeOrigin = exit.m_codeOrigin; codeOrigin.inlineCallFrame; codeOrigin = codeOrigin.inlineCallFrame->caller) {
InlineCallFrame* inlineCallFrame = codeOrigin.inlineCallFrame;
CodeBlock* baselineCodeBlock = jit.baselineCodeBlockFor(codeOrigin);
CodeBlock* baselineCodeBlockForCaller = jit.baselineCodeBlockFor(inlineCallFrame->caller);
void* jumpTarget = nullptr;
void* trueReturnPC = nullptr;
unsigned callBytecodeIndex = inlineCallFrame->caller.bytecodeIndex;
switch (inlineCallFrame->kind) {
case InlineCallFrame::Call:
case InlineCallFrame::Construct:
case InlineCallFrame::CallVarargs:
case InlineCallFrame::ConstructVarargs: {
CallLinkInfo* callLinkInfo =
baselineCodeBlockForCaller->getCallLinkInfoForBytecodeIndex(callBytecodeIndex);
RELEASE_ASSERT(callLinkInfo);
jumpTarget = callLinkInfo->callReturnLocation().executableAddress();
break;
}
case InlineCallFrame::GetterCall:
case InlineCallFrame::SetterCall: {
StructureStubInfo* stubInfo =
baselineCodeBlockForCaller->findStubInfo(CodeOrigin(callBytecodeIndex));
RELEASE_ASSERT(stubInfo);
switch (inlineCallFrame->kind) {
case InlineCallFrame::GetterCall:
jumpTarget = jit.vm()->getCTIStub(baselineGetterReturnThunkGenerator).code().executableAddress();
break;
case InlineCallFrame::SetterCall:
jumpTarget = jit.vm()->getCTIStub(baselineSetterReturnThunkGenerator).code().executableAddress();
break;
default:
RELEASE_ASSERT_NOT_REACHED();
break;
}
trueReturnPC = stubInfo->callReturnLocation.labelAtOffset(
stubInfo->patch.deltaCallToDone).executableAddress();
break;
} }
GPRReg callerFrameGPR;
if (inlineCallFrame->caller.inlineCallFrame) {
jit.addPtr(AssemblyHelpers::TrustedImm32(inlineCallFrame->caller.inlineCallFrame->stackOffset * sizeof(EncodedJSValue)), GPRInfo::callFrameRegister, GPRInfo::regT3);
callerFrameGPR = GPRInfo::regT3;
} else
callerFrameGPR = GPRInfo::callFrameRegister;
jit.storePtr(AssemblyHelpers::TrustedImmPtr(jumpTarget), AssemblyHelpers::addressForByteOffset(inlineCallFrame->returnPCOffset()));
if (trueReturnPC)
jit.storePtr(AssemblyHelpers::TrustedImmPtr(trueReturnPC), AssemblyHelpers::addressFor(inlineCallFrame->stackOffset + virtualRegisterForArgument(inlineCallFrame->arguments.size()).offset()));
jit.storePtr(AssemblyHelpers::TrustedImmPtr(baselineCodeBlock), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::CodeBlock)));
if (!inlineCallFrame->isVarargs())
jit.store32(AssemblyHelpers::TrustedImm32(inlineCallFrame->arguments.size()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
#if USE(JSVALUE64)
jit.store64(callerFrameGPR, AssemblyHelpers::addressForByteOffset(inlineCallFrame->callerFrameOffset()));
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeOffset(codeOrigin.bytecodeIndex);
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
if (!inlineCallFrame->isClosureCall)
jit.store64(AssemblyHelpers::TrustedImm64(JSValue::encode(JSValue(inlineCallFrame->calleeConstant()))), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
#else // USE(JSVALUE64) // so this is the 32-bit part
jit.storePtr(callerFrameGPR, AssemblyHelpers::addressForByteOffset(inlineCallFrame->callerFrameOffset()));
Instruction* instruction = baselineCodeBlock->instructions().begin() + codeOrigin.bytecodeIndex;
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeInstruction(instruction);
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
jit.store32(AssemblyHelpers::TrustedImm32(JSValue::CellTag), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
if (!inlineCallFrame->isClosureCall)
jit.storePtr(AssemblyHelpers::TrustedImmPtr(inlineCallFrame->calleeConstant()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
#endif // USE(JSVALUE64) // ending the #else part, so directly above is the 32-bit part
}
#if USE(JSVALUE64)
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeOffset(codeOrigin.bytecodeIndex);
#else
Instruction* instruction = jit.baselineCodeBlock()->instructions().begin() + codeOrigin.bytecodeIndex;
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeInstruction(instruction);
#endif
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(JSStack::ArgumentCount)));
}
void reifyInlinedCallFrames(CCallHelpers& jit, const OSRExitBase& exit)
{
ASSERT(jit.baselineCodeBlock()->jitType() == JITCode::BaselineJIT);
jit.storePtr(AssemblyHelpers::TrustedImmPtr(jit.baselineCodeBlock()), AssemblyHelpers::addressFor((VirtualRegister)JSStack::CodeBlock));
CodeOrigin codeOrigin;
for (codeOrigin = exit.m_codeOrigin; codeOrigin.inlineCallFrame; codeOrigin = codeOrigin.inlineCallFrame->caller) {
InlineCallFrame* inlineCallFrame = codeOrigin.inlineCallFrame;
CodeBlock* baselineCodeBlock = jit.baselineCodeBlockFor(codeOrigin);
CodeBlock* baselineCodeBlockForCaller = jit.baselineCodeBlockFor(inlineCallFrame->caller);
unsigned callBytecodeIndex = inlineCallFrame->caller.bytecodeIndex;
CallLinkInfo& callLinkInfo = baselineCodeBlockForCaller->getCallLinkInfo(callBytecodeIndex);
void* jumpTarget = callLinkInfo.callReturnLocation.executableAddress();
GPRReg callerFrameGPR;
if (inlineCallFrame->caller.inlineCallFrame) {
jit.addPtr(AssemblyHelpers::TrustedImm32(inlineCallFrame->caller.inlineCallFrame->stackOffset * sizeof(EncodedJSValue)), GPRInfo::callFrameRegister, GPRInfo::regT3);
callerFrameGPR = GPRInfo::regT3;
} else
callerFrameGPR = GPRInfo::callFrameRegister;
#if USE(JSVALUE64)
jit.storePtr(AssemblyHelpers::TrustedImmPtr(baselineCodeBlock), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::CodeBlock)));
if (!inlineCallFrame->isClosureCall)
jit.store64(AssemblyHelpers::TrustedImm64(JSValue::encode(JSValue(inlineCallFrame->calleeConstant()->scope()))), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ScopeChain)));
jit.store64(callerFrameGPR, AssemblyHelpers::addressForByteOffset(inlineCallFrame->callerFrameOffset()));
jit.storePtr(AssemblyHelpers::TrustedImmPtr(jumpTarget), AssemblyHelpers::addressForByteOffset(inlineCallFrame->returnPCOffset()));
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeOffset(codeOrigin.bytecodeIndex);
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
jit.store32(AssemblyHelpers::TrustedImm32(inlineCallFrame->arguments.size()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
if (!inlineCallFrame->isClosureCall)
jit.store64(AssemblyHelpers::TrustedImm64(JSValue::encode(JSValue(inlineCallFrame->calleeConstant()))), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
// Leave the captured arguments in regT3.
if (baselineCodeBlock->usesArguments())
jit.loadPtr(AssemblyHelpers::addressFor(VirtualRegister(inlineCallFrame->stackOffset + unmodifiedArgumentsRegister(baselineCodeBlock->argumentsRegister()).offset())), GPRInfo::regT3);
#else // USE(JSVALUE64) // so this is the 32-bit part
jit.storePtr(AssemblyHelpers::TrustedImmPtr(baselineCodeBlock), AssemblyHelpers::addressFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::CodeBlock)));
jit.store32(AssemblyHelpers::TrustedImm32(JSValue::CellTag), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ScopeChain)));
if (!inlineCallFrame->isClosureCall)
jit.storePtr(AssemblyHelpers::TrustedImmPtr(inlineCallFrame->calleeConstant()->scope()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ScopeChain)));
jit.storePtr(callerFrameGPR, AssemblyHelpers::addressForByteOffset(inlineCallFrame->callerFrameOffset()));
jit.storePtr(AssemblyHelpers::TrustedImmPtr(jumpTarget), AssemblyHelpers::addressForByteOffset(inlineCallFrame->returnPCOffset()));
Instruction* instruction = baselineCodeBlock->instructions().begin() + codeOrigin.bytecodeIndex;
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeInstruction(instruction);
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
jit.store32(AssemblyHelpers::TrustedImm32(inlineCallFrame->arguments.size()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::ArgumentCount)));
jit.store32(AssemblyHelpers::TrustedImm32(JSValue::CellTag), AssemblyHelpers::tagFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
if (!inlineCallFrame->isClosureCall)
jit.storePtr(AssemblyHelpers::TrustedImmPtr(inlineCallFrame->calleeConstant()), AssemblyHelpers::payloadFor((VirtualRegister)(inlineCallFrame->stackOffset + JSStack::Callee)));
// Leave the captured arguments in regT3.
if (baselineCodeBlock->usesArguments())
jit.loadPtr(AssemblyHelpers::payloadFor(VirtualRegister(inlineCallFrame->stackOffset + unmodifiedArgumentsRegister(baselineCodeBlock->argumentsRegister()).offset())), GPRInfo::regT3);
#endif // USE(JSVALUE64) // ending the #else part, so directly above is the 32-bit part
if (baselineCodeBlock->usesArguments()) {
AssemblyHelpers::Jump noArguments = jit.branchTestPtr(AssemblyHelpers::Zero, GPRInfo::regT3);
jit.addPtr(AssemblyHelpers::TrustedImm32(inlineCallFrame->stackOffset * sizeof(EncodedJSValue)), GPRInfo::callFrameRegister, GPRInfo::regT0);
jit.storePtr(GPRInfo::regT0, AssemblyHelpers::Address(GPRInfo::regT3, Arguments::offsetOfRegisters()));
noArguments.link(&jit);
}
}
#if USE(JSVALUE64)
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeOffset(codeOrigin.bytecodeIndex);
#else
Instruction* instruction = jit.baselineCodeBlock()->instructions().begin() + codeOrigin.bytecodeIndex;
uint32_t locationBits = CallFrame::Location::encodeAsBytecodeInstruction(instruction);
#endif
jit.store32(AssemblyHelpers::TrustedImm32(locationBits), AssemblyHelpers::tagFor((VirtualRegister)(JSStack::ArgumentCount)));
}
