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During two-address lowering, rescheduling an instruction does not untie

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operands. Make TryInstructionTransform return false to reflect this.
Fixes PR11861.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153892 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames
2012-04-02 19:58:43 +00:00
parent ce167840b2
commit be9fe49b17
2 changed files with 26 additions and 2 deletions
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4
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -1248,7 +1248,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
// re-schedule this MI below it.
if (RescheduleMIBelowKill(mbbi, mi, nmi, regB)) {
++NumReSchedDowns;
return true;
return false;
}
if (TargetRegisterInfo::isVirtualRegister(regA))
@ -1270,7 +1270,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
// re-schedule it before this MI if it's legal.
if (RescheduleKillAboveMI(mbbi, mi, nmi, regB)) {
++NumReSchedUps;
return true;
return false;
}
// If this is an instruction with a load folded into it, try unfolding