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R600/SI: replace WQM intrinsic

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Just enable WQM when we see an LDS interpolation instruction.

Signed-off-by: Christian König <christian.koenig@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178019 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Christian Konig
2013-03-26 14:03:50 +00:00
parent e981802d9b
commit 03cd75eedb
5 changed files with 14 additions and 28 deletions
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13
lib/Target/R600/SIISelLowering.cpp
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@@ -208,28 +208,15 @@ SDValue SITargetLowering::LowerFormalArguments(
MachineBasicBlock * SITargetLowering::EmitInstrWithCustomInserter(
MachineInstr * MI, MachineBasicBlock * BB) const {
MachineRegisterInfo & MRI = BB->getParent()->getRegInfo();
MachineBasicBlock::iterator I = MI;
switch (MI->getOpcode()) {
default:
return AMDGPUTargetLowering::EmitInstrWithCustomInserter(MI, BB);
case AMDGPU::BRANCH: return BB;
case AMDGPU::SI_WQM:
LowerSI_WQM(MI, *BB, I, MRI);
break;
}
return BB;
}
void SITargetLowering::LowerSI_WQM(MachineInstr *MI, MachineBasicBlock &BB,
MachineBasicBlock::iterator I, MachineRegisterInfo & MRI) const {
BuildMI(BB, I, BB.findDebugLoc(I), TII->get(AMDGPU::S_WQM_B64), AMDGPU::EXEC)
.addReg(AMDGPU::EXEC);
MI->eraseFromParent();
}
EVT SITargetLowering::getSetCCResultType(EVT VT) const {
return MVT::i1;
}