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Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14996 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -64,7 +64,7 @@ void LiveVariables::MarkVirtRegAliveInBlock(VarInfo &VRInfo,
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break;
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}
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if (MBB == VRInfo.DefBlock) return; // Terminate recursion
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if (MBB == VRInfo.DefInst->getParent()) return; // Terminate recursion
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if (VRInfo.AliveBlocks.size() <= BBNum)
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VRInfo.AliveBlocks.resize(BBNum+1); // Make space...
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@ -95,7 +95,8 @@ void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
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assert(VRInfo.Kills[i].first != MBB && "entry should be at end!");
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#endif
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assert(MBB != VRInfo.DefBlock && "Should have kill for defblock!");
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assert(MBB != VRInfo.DefInst->getParent() &&
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"Should have kill for defblock!");
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// Add a new kill entry for this basic block.
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VRInfo.Kills.push_back(std::make_pair(MBB, MI));
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@ -230,8 +231,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
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if (MRegisterInfo::isVirtualRegister(MO.getReg())) {
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VarInfo &VRInfo = getVarInfo(MO.getReg());
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assert(VRInfo.DefBlock == 0 && "Variable multiply defined!");
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VRInfo.DefBlock = MBB; // Created here...
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assert(VRInfo.DefInst == 0 && "Variable multiply defined!");
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VRInfo.DefInst = MI;
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VRInfo.Kills.push_back(std::make_pair(MBB, MI)); // Defaults to dead
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} else if (MRegisterInfo::isPhysicalRegister(MO.getReg()) &&
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