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[ARM] Set AddPristinesAndCSRs to expandCMP_SWAP LivePhysRegs.

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We run after PEI.
Found via inspection; no obvious testcase.

Follow-up to r266679.

llvm-svn: 267781
This commit is contained in:
Ahmed Bougacha 2016-04-27 20:33:07 +00:00
parent b9e69e57c8
commit 5a7cdb03e6
1 changed files with 2 additions and 2 deletions
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4
lib/Target/ARM/ARMExpandPseudoInsts.cpp
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@ -775,7 +775,7 @@ bool ARMExpandPseudo::ExpandCMP_SWAP(MachineBasicBlock &MBB,
MachineOperand &New = MI.getOperand(4);
LivePhysRegs LiveRegs(&TII->getRegisterInfo());
LiveRegs.addLiveOuts(&MBB);
LiveRegs.addLiveOuts(&MBB, /*AddPristinesAndCSRs=*/true);
for (auto I = std::prev(MBB.end()); I != MBBI; --I)
LiveRegs.stepBackward(*I);
@ -897,7 +897,7 @@ bool ARMExpandPseudo::ExpandCMP_SWAP_64(MachineBasicBlock &MBB,
unsigned DesiredHi = TRI->getSubReg(Desired.getReg(), ARM::gsub_1);
LivePhysRegs LiveRegs(&TII->getRegisterInfo());
LiveRegs.addLiveOuts(&MBB);
LiveRegs.addLiveOuts(&MBB, /*AddPristinesAndCSRs=*/true);
for (auto I = std::prev(MBB.end()); I != MBBI; --I)
LiveRegs.stepBackward(*I);