diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp index 92ed678ba8f..4878e5b7a22 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp @@ -2229,6 +2229,11 @@ SDValue AMDGPUTargetLowering::performAndCombine(SDNode *N, SDValue LoAnd = DAG.getNode(ISD::AND, SL, MVT::i32, Lo, LoRHS); SDValue HiAnd = DAG.getNode(ISD::AND, SL, MVT::i32, Hi, HiRHS); + // Re-visit the ands. It's possible we eliminated one of them and it could + // simplify the vector. + DCI.AddToWorklist(Lo.getNode()); + DCI.AddToWorklist(Hi.getNode()); + SDValue Vec = DAG.getNode(ISD::BUILD_VECTOR, SL, MVT::v2i32, LoAnd, HiAnd); return DAG.getNode(ISD::BITCAST, SL, MVT::i64, Vec); } |
