diff options
Diffstat (limited to 'llvm/lib/Target/R600/R600ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/R600/R600ISelLowering.cpp | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/llvm/lib/Target/R600/R600ISelLowering.cpp b/llvm/lib/Target/R600/R600ISelLowering.cpp index 4b6c2eb5b15..0fcb488672f 100644 --- a/llvm/lib/Target/R600/R600ISelLowering.cpp +++ b/llvm/lib/Target/R600/R600ISelLowering.cpp @@ -134,21 +134,17 @@ MachineBasicBlock * R600TargetLowering::EmitInstrWithCustomInserter( switch (MI->getOpcode()) { default: - if (TII->isLDSInstr(MI->getOpcode()) && - TII->getOperandIdx(MI->getOpcode(), AMDGPU::OpName::dst) != -1) { + // Replace LDS_*_RET instruction that don't have any uses with the + // equivalent LDS_*_NORET instruction. + if (TII->isLDSRetInstr(MI->getOpcode())) { int DstIdx = TII->getOperandIdx(MI->getOpcode(), AMDGPU::OpName::dst); assert(DstIdx != -1); MachineInstrBuilder NewMI; - if (!MRI.use_empty(MI->getOperand(DstIdx).getReg())) { - NewMI = BuildMI(*BB, I, BB->findDebugLoc(I), TII->get(MI->getOpcode()), - AMDGPU::OQAP); - TII->buildDefaultInstruction(*BB, I, AMDGPU::MOV, - MI->getOperand(0).getReg(), - AMDGPU::OQAP); - } else { - NewMI = BuildMI(*BB, I, BB->findDebugLoc(I), - TII->get(AMDGPU::getLDSNoRetOp(MI->getOpcode()))); - } + if (!MRI.use_empty(MI->getOperand(DstIdx).getReg())) + return BB; + + NewMI = BuildMI(*BB, I, BB->findDebugLoc(I), + TII->get(AMDGPU::getLDSNoRetOp(MI->getOpcode()))); for (unsigned i = 1, e = MI->getNumOperands(); i < e; ++i) { NewMI.addOperand(MI->getOperand(i)); } |
