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Make fast-isel understand llvm.stackprotector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98862 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1166,6 +1166,21 @@ bool X86FastISel::X86VisitIntrinsicCall(IntrinsicInst &I) {
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// FIXME: Handle more intrinsics.
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switch (I.getIntrinsicID()) {
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default: return false;
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case Intrinsic::stackprotector: {
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// Emit code inline code to store the stack guard onto the stack.
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EVT PtrTy = TLI.getPointerTy();
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Value *Op1 = I.getOperand(1); // The guard's value.
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AllocaInst *Slot = cast<AllocaInst>(I.getOperand(2));
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// Grab the frame index.
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X86AddressMode AM;
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if (!X86SelectAddress(Slot, AM)) return false;
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X86FastEmitStore(PtrTy, Op1, AM);
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UpdateValueMap(&I, getRegForValue(Op1));
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return true;
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}
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case Intrinsic::objectsize: {
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ConstantInt *CI = dyn_cast<ConstantInt>(I.getOperand(2));
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const Type *Ty = I.getCalledFunction()->getReturnType();
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