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AMDGPU: Don't add same implicit use multiple times

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For the last component, the same register use
was added as an implicit use and another implicit kill use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305205 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2017-06-12 17:19:20 +00:00
parent 57098b0fe9
commit 9cae1d2455
1 changed files with 2 additions and 4 deletions
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6
lib/Target/AMDGPU/SIInstrInfo.cpp
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@ -468,13 +468,11 @@ void SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
Builder.addReg(RI.getSubReg(SrcReg, SubIdx));
if (Idx == SubIndices.size() - 1)
Builder.addReg(SrcReg, getKillRegState(KillSrc) | RegState::Implicit);
if (Idx == 0)
Builder.addReg(DestReg, RegState::Define | RegState::Implicit);
Builder.addReg(SrcReg, RegState::Implicit);
bool UseKill = KillSrc && Idx == SubIndices.size() - 1;
Builder.addReg(SrcReg, getKillRegState(UseKill) | RegState::Implicit);
}
}