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ScheduleDAGInstrs: Do not try to toggle kill flags on debug uses

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Preparation for upcoming changes. No testcase as none of the public
targets bundles early enough and has a post machine scheduler enabled at
the same time. The error is also easily catched by asserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293324 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2017-01-27 18:53:07 +00:00
parent b162af3d14
commit 0c0aece079
1 changed files with 3 additions and 0 deletions
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3
lib/CodeGen/ScheduleDAGInstrs.cpp
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@ -1159,6 +1159,9 @@ static void toggleBundleKillFlag(MachineInstr *MI, unsigned Reg,
}
void ScheduleDAGInstrs::toggleKillFlag(MachineInstr &MI, MachineOperand &MO) {
if (MO.isDebug())
return;
// Setting kill flag...
if (!MO.isKill()) {
MO.setIsKill(true);