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Bring UsedBlocks back. StrongPHIElimination needs this information.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43866 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2007-11-08 01:20:48 +00:00
parent 43b665db50
commit a018540807
3 changed files with 15 additions and 1 deletions
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4
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -202,6 +202,10 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
LiveVariables::VarInfo& varInfo = LV.getVarInfo(regA);
varInfo.DefInst = prevMi;
// update live variables for regB
LiveVariables::VarInfo& varInfoB = LV.getVarInfo(regB);
// regB is used in this BB.
varInfoB.UsedBlocks[mbbi->getNumber()] = true;
if (LV.removeVirtualRegisterKilled(regB, mbbi, mi))
LV.addVirtualRegisterKilled(regB, prevMi);