diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp b/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp index 70b7b6b2671..88536289119 100644 --- a/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp +++ b/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp @@ -400,6 +400,10 @@ int GCNHazardRecognizer::createsVALUHazard(const MachineInstr &MI) { VDataRCID = Desc.OpInfo[VDataIdx].RegClass; if (TII->isMUBUF(MI) || TII->isMTBUF(MI)) { + // There is no hazard if the instruction does not use vector regs + // (like wbinvl1) + if (VDataIdx == -1) + return -1; // For MUBUF/MTBUF instructions this hazard only exists if the // instruction is not using a register in the soffset field. const MachineOperand *SOffset = |
