diff options
| -rw-r--r-- | lib/CodeGen/IntrinsicLowering.cpp | 9 | ||||
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | 10 |
2 files changed, 19 insertions, 0 deletions
diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp index 3e3b28a810..8a3bd0bf4e 100644 --- a/lib/CodeGen/IntrinsicLowering.cpp +++ b/lib/CodeGen/IntrinsicLowering.cpp @@ -515,6 +515,15 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) { if (CI->getType() != Type::getVoidTy(Context)) CI->replaceAllUsesWith(ConstantInt::get(CI->getType(), 1)); break; + case Intrinsic::invariant_start: + case Intrinsic::lifetime_start: + // Discard region information. + CI->replaceAllUsesWith(UndefValue::get(CI->getType())); + break; + case Intrinsic::invariant_end: + case Intrinsic::lifetime_end: + // Discard region information. + break; } assert(CI->use_empty() && diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp index ee8bf79171..9818e62a40 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp @@ -4409,6 +4409,16 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) { return implVisitBinaryAtomic(I, ISD::ATOMIC_LOAD_UMAX); case Intrinsic::atomic_swap: return implVisitBinaryAtomic(I, ISD::ATOMIC_SWAP); + + case Intrinsic::invariant_start: + case Intrinsic::lifetime_start: + // Discard region information. + setValue(&I, DAG.getUNDEF(TLI.getPointerTy())); + return 0; + case Intrinsic::invariant_end: + case Intrinsic::lifetime_end: + // Discard region information. + return 0; } } |