diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp b/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp index d20910baed3..fb151b4ffdc 100644 --- a/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp +++ b/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp @@ -588,7 +588,9 @@ bool SIFixSGPRCopies::runOnMachineFunction(MachineFunction &MF) { } if (UseMI->isPHI()) { - if (!TRI->isSGPRReg(MRI, Use.getReg())) + const TargetRegisterClass *UseRC = MRI.getRegClass(Use.getReg()); + if (!TRI->isSGPRReg(MRI, Use.getReg()) && + UseRC != &AMDGPU::VReg_1RegClass) hasVGPRUses++; continue; } @@ -633,8 +635,10 @@ bool SIFixSGPRCopies::runOnMachineFunction(MachineFunction &MF) { if ((!TRI->isVGPR(MRI, PHIRes) && RC0 != &AMDGPU::VReg_1RegClass) && (hasVGPRInput || hasVGPRUses > 1)) { + LLVM_DEBUG(dbgs() << "Fixing PHI: " << MI); TII->moveToVALU(MI); } else { + LLVM_DEBUG(dbgs() << "Legalizing PHI: " << MI); TII->legalizeOperands(MI, MDT); } |
