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Fix the new load-unfolding code to update LiveVariable's dead flags,

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in addition to the kill flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106512 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-06-22 00:32:04 +00:00
parent e42f493f4c
commit 7aa7bc735d
1 changed files with 8 additions and 2 deletions
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10
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -961,8 +961,14 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
if (LV) {
for (unsigned i = 0, e = mi->getNumOperands(); i != e; ++i) {
MachineOperand &MO = mi->getOperand(i);
if (MO.isReg() && MO.isUse() && MO.isKill())
LV->replaceKillInstruction(Reg, mi, NewMIs[0]);
if (MO.isReg() && MO.getReg() != 0 &&
TargetRegisterInfo::isVirtualRegister(MO.getReg())) {
if (MO.isUse()) {
if (MO.isKill())
LV->replaceKillInstruction(MO.getReg(), mi, NewMIs[0]);
} else if (LV->removeVirtualRegisterDead(MO.getReg(), mi))
LV->addVirtualRegisterDead(MO.getReg(), NewMIs[1]);
}
}
LV->addVirtualRegisterKilled(Reg, NewMIs[1]);
}