diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/R600/SIFixSGPRCopies.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/llvm/lib/Target/R600/SIFixSGPRCopies.cpp b/llvm/lib/Target/R600/SIFixSGPRCopies.cpp index c7a16f4c387..d90f09d3cd6 100644 --- a/llvm/lib/Target/R600/SIFixSGPRCopies.cpp +++ b/llvm/lib/Target/R600/SIFixSGPRCopies.cpp @@ -219,11 +219,13 @@ bool SIFixSGPRCopies::runOnMachineFunction(MachineFunction &MF) { case AMDGPU::PHI: { DEBUG(dbgs() << "Fixing PHI: " << MI); - for (unsigned i = 1; i < MI.getNumOperands(); i+=2) { - unsigned Reg = MI.getOperand(i).getReg(); - const TargetRegisterClass *RC = inferRegClassFromDef(TRI, MRI, Reg, - MI.getOperand(0).getSubReg()); - MRI.constrainRegClass(Reg, RC); + for (unsigned i = 1; i < MI.getNumOperands(); i += 2) { + const MachineOperand &Op = MI.getOperand(i); + unsigned Reg = Op.getReg(); + const TargetRegisterClass *RC + = inferRegClassFromDef(TRI, MRI, Reg, Op.getSubReg()); + + MRI.constrainRegClass(Op.getReg(), RC); } unsigned Reg = MI.getOperand(0).getReg(); const TargetRegisterClass *RC = inferRegClassFromUses(TRI, MRI, Reg, |
