本文整理汇总了C++中IRBuilder::CreateInvoke方法的典型用法代码示例。如果您正苦于以下问题：C++ IRBuilder::CreateInvoke方法的具体用法？C++ IRBuilder::CreateInvoke怎么用？C++ IRBuilder::CreateInvoke使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IRBuilder的用法示例。
在下文中一共展示了IRBuilder::CreateInvoke方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: rewriteSetJmpCallSite
// Calls to setjmp(p) are lowered to _setjmp3(p, 0) by the frontend.
// The idea behind _setjmp3 is that it takes an optional number of personality
// specific parameters to indicate how to restore the personality-specific frame
// state when longjmp is initiated. Typically, the current TryLevel is saved.
void WinEHStatePass::rewriteSetJmpCallSite(IRBuilder<> &Builder, Function &F,
CallSite CS, Value *State) {
// Don't rewrite calls with a weird number of arguments.
if (CS.getNumArgOperands() != 2)
return;
Instruction *Inst = CS.getInstruction();
SmallVector<OperandBundleDef, 1> OpBundles;
CS.getOperandBundlesAsDefs(OpBundles);
SmallVector<Value *, 3> OptionalArgs;
if (Personality == EHPersonality::MSVC_CXX) {
OptionalArgs.push_back(CxxLongjmpUnwind);
OptionalArgs.push_back(State);
OptionalArgs.push_back(emitEHLSDA(Builder, &F));
} else if (Personality == EHPersonality::MSVC_X86SEH) {
OptionalArgs.push_back(SehLongjmpUnwind);
OptionalArgs.push_back(State);
if (UseStackGuard)
OptionalArgs.push_back(Cookie);
} else {
llvm_unreachable("unhandled personality!");
}
SmallVector<Value *, 5> Args;
Args.push_back(
Builder.CreateBitCast(CS.getArgOperand(0), Builder.getInt8PtrTy()));
Args.push_back(Builder.getInt32(OptionalArgs.size()));
Args.append(OptionalArgs.begin(), OptionalArgs.end());
CallSite NewCS;
if (CS.isCall()) {
auto *CI = cast<CallInst>(Inst);
CallInst *NewCI = Builder.CreateCall(SetJmp3, Args, OpBundles);
NewCI->setTailCallKind(CI->getTailCallKind());
NewCS = NewCI;
} else {
auto *II = cast<InvokeInst>(Inst);
NewCS = Builder.CreateInvoke(
SetJmp3, II->getNormalDest(), II->getUnwindDest(), Args, OpBundles);
}
NewCS.setCallingConv(CS.getCallingConv());
NewCS.setAttributes(CS.getAttributes());
NewCS->setDebugLoc(CS->getDebugLoc());
Instruction *NewInst = NewCS.getInstruction();
NewInst->takeName(Inst);
Inst->replaceAllUsesWith(NewInst);
Inst->eraseFromParent();
}