diff options
Diffstat (limited to 'lib/Target/AMDGPU/SIFrameLowering.cpp')
| -rw-r--r-- | lib/Target/AMDGPU/SIFrameLowering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/AMDGPU/SIFrameLowering.cpp b/lib/Target/AMDGPU/SIFrameLowering.cpp index 86e3b37b09e94..1279f845de0e3 100644 --- a/lib/Target/AMDGPU/SIFrameLowering.cpp +++ b/lib/Target/AMDGPU/SIFrameLowering.cpp @@ -353,7 +353,8 @@ void SIFrameLowering::emitPrologue(MachineFunction &MF, if (OffsetRegUsed && PreloadedScratchWaveOffsetReg != ScratchWaveOffsetReg) { BuildMI(MBB, I, DL, TII->get(AMDGPU::COPY), ScratchWaveOffsetReg) - .addReg(PreloadedScratchWaveOffsetReg, RegState::Kill); + .addReg(PreloadedScratchWaveOffsetReg, + MRI.isPhysRegUsed(ScratchWaveOffsetReg) ? 0 : RegState::Kill); } if (CopyBuffer && !CopyBufferFirst) { |