diff options
Diffstat (limited to 'contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp b/contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp index cd1b3ac..23502b4 100644 --- a/contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp +++ b/contrib/llvm/lib/Target/R600/SIFixSGPRCopies.cpp @@ -140,7 +140,7 @@ const TargetRegisterClass *SIFixSGPRCopies::inferRegClassFromUses( const TargetRegisterClass *RC = TargetRegisterInfo::isVirtualRegister(Reg) ? MRI.getRegClass(Reg) : - TRI->getRegClass(Reg); + TRI->getPhysRegClass(Reg); RC = TRI->getSubRegClass(RC, SubReg); for (MachineRegisterInfo::use_instr_iterator @@ -183,15 +183,17 @@ bool SIFixSGPRCopies::isVGPRToSGPRCopy(const MachineInstr &Copy, unsigned SrcReg = Copy.getOperand(1).getReg(); unsigned SrcSubReg = Copy.getOperand(1).getSubReg(); - const TargetRegisterClass *DstRC - = TargetRegisterInfo::isVirtualRegister(DstReg) ? - MRI.getRegClass(DstReg) : - TRI->getRegClass(DstReg); + if (!TargetRegisterInfo::isVirtualRegister(DstReg)) { + // If the destination register is a physical register there isn't really + // much we can do to fix this. + return false; + } + + const TargetRegisterClass *DstRC = MRI.getRegClass(DstReg); const TargetRegisterClass *SrcRC; if (!TargetRegisterInfo::isVirtualRegister(SrcReg) || - DstRC == &AMDGPU::M0RegRegClass || MRI.getRegClass(SrcReg) == &AMDGPU::VReg_1RegClass) return false; |
