diff options
Diffstat (limited to 'lib/Target/R600/SIInstrInfo.cpp')
-rw-r--r-- | lib/Target/R600/SIInstrInfo.cpp | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/lib/Target/R600/SIInstrInfo.cpp b/lib/Target/R600/SIInstrInfo.cpp index 8343362d116..1a0010c03dc 100644 --- a/lib/Target/R600/SIInstrInfo.cpp +++ b/lib/Target/R600/SIInstrInfo.cpp @@ -326,26 +326,6 @@ SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB, unsigned Opcode; const int16_t *SubIndices; - if (AMDGPU::M0 == DestReg) { - // Check if M0 isn't already set to this value - for (MachineBasicBlock::reverse_iterator E = MBB.rend(), - I = MachineBasicBlock::reverse_iterator(MI); I != E; ++I) { - - if (!I->definesRegister(AMDGPU::M0)) - continue; - - unsigned Opc = I->getOpcode(); - if (Opc != TargetOpcode::COPY && Opc != AMDGPU::S_MOV_B32) - break; - - if (!I->readsRegister(SrcReg)) - break; - - // The copy isn't necessary - return; - } - } - if (AMDGPU::SReg_32RegClass.contains(DestReg)) { assert(AMDGPU::SReg_32RegClass.contains(SrcReg)); BuildMI(MBB, MI, DL, get(AMDGPU::S_MOV_B32), DestReg) |