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CodeGen/LiveVariables: use vector::assign()

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Address review comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216426 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dylan Noblesmith 2014-08-26 02:03:25 +00:00
parent fad8d818db
commit 71499d3a5d
1 changed files with 4 additions and 8 deletions
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12
lib/CodeGen/LiveVariables.cpp
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@ -623,10 +623,8 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
TRI = MF->getSubtarget().getRegisterInfo();
const unsigned NumRegs = TRI->getNumRegs();
PhysRegDef.clear();
PhysRegUse.clear();
PhysRegDef.resize(NumRegs, nullptr);
PhysRegUse.resize(NumRegs, nullptr);
PhysRegDef.assign(NumRegs, nullptr);
PhysRegUse.assign(NumRegs, nullptr);
PHIVarInfo.resize(MF->getNumBlockIDs());
PHIJoins.clear();
@ -648,10 +646,8 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
for (MachineBasicBlock *MBB : depth_first_ext(Entry, Visited)) {
runOnBlock(MBB, NumRegs);
PhysRegDef.clear();
PhysRegUse.clear();
PhysRegDef.resize(NumRegs, nullptr);
PhysRegUse.resize(NumRegs, nullptr);
PhysRegDef.assign(NumRegs, nullptr);
PhysRegUse.assign(NumRegs, nullptr);
}
// Convert and transfer the dead / killed information we have gathered into