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Cosmetic changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52479 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -97,7 +97,7 @@ bool PNE::runOnMachineFunction(MachineFunction &Fn) {
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E = ImpDefs.end(); I != E; ++I) {
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MachineInstr *DefMI = *I;
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unsigned DefReg = DefMI->getOperand(0).getReg();
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if (MRI->use_begin(DefReg) == MRI->use_end())
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if (MRI->use_empty(DefReg))
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DefMI->eraseFromParent();
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}
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@ -127,8 +127,10 @@ bool PNE::EliminatePHINodes(MachineFunction &MF, MachineBasicBlock &MBB) {
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return true;
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}
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/// isSourceDefinedByImplicitDef - Return true if all sources of the phi node
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/// are implicit_def's.
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static bool isSourceDefinedByImplicitDef(const MachineInstr *MPhi,
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const MachineRegisterInfo *MRI) {
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const MachineRegisterInfo *MRI) {
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for (unsigned i = 1; i != MPhi->getNumOperands(); i += 2) {
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unsigned SrcReg = MPhi->getOperand(i).getReg();
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const MachineInstr *DefMI = MRI->getVRegDef(SrcReg);
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@ -229,7 +231,7 @@ void PNE::LowerAtomicPHINode(MachineBasicBlock &MBB,
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// Find a safe location to insert the copy, this may be the first terminator
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// in the block (or end()).
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MachineBasicBlock::iterator InsertPos = opBlock.getFirstTerminator();
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// Insert the copy.
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TII->copyRegToReg(opBlock, InsertPos, IncomingReg, SrcReg, RC, RC);
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