diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2018-09-11 10:09:45 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2018-09-11 10:09:45 +0000 |
| commit | 36272db3cad448211389168cced4baac39a1a0d1 (patch) | |
| tree | e570502f0d6730e432657fc86304fa02a2de80fa /lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp | |
| parent | 8568f9cb5af587ccee4088af3e2d617b3c30d403 (diff) | |
Diffstat (limited to 'lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp index f25f4d4693ea..7cb0e12a6809 100644 --- a/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp +++ b/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp @@ -1451,7 +1451,11 @@ bool AMDGPUDAGToDAGISel::SelectSMRD(SDValue Addr, SDValue &SBase, SDValue &Offset, bool &Imm) const { SDLoc SL(Addr); - if (CurDAG->isBaseWithConstantOffset(Addr)) { + // A 32-bit (address + offset) should not cause unsigned 32-bit integer + // wraparound, because s_load instructions perform the addition in 64 bits. + if ((Addr.getValueType() != MVT::i32 || + Addr->getFlags().hasNoUnsignedWrap()) && + CurDAG->isBaseWithConstantOffset(Addr)) { SDValue N0 = Addr.getOperand(0); SDValue N1 = Addr.getOperand(1); |