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Rename variables for consistency.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2010-05-04 17:12:26 +00:00
parent c918d6043b
commit 28428cd6f3
1 changed files with 11 additions and 10 deletions
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21
lib/CodeGen/PHIElimination.cpp
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@ -52,22 +52,22 @@ void llvm::PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const {
MachineFunctionPass::getAnalysisUsage(AU); MachineFunctionPass::getAnalysisUsage(AU);
} }
bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) { bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &MF) {
MRI = &Fn.getRegInfo(); MRI = &MF.getRegInfo();
bool Changed = false; bool Changed = false;
// Split critical edges to help the coalescer // Split critical edges to help the coalescer
if (LiveVariables *LV = getAnalysisIfAvailable<LiveVariables>()) if (LiveVariables *LV = getAnalysisIfAvailable<LiveVariables>())
for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
Changed |= SplitPHIEdges(Fn, *I, *LV); Changed |= SplitPHIEdges(MF, *I, *LV);
// Populate VRegPHIUseCount // Populate VRegPHIUseCount
analyzePHINodes(Fn); analyzePHINodes(MF);
// Eliminate PHI instructions by inserting copies into predecessor blocks. // Eliminate PHI instructions by inserting copies into predecessor blocks.
for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
Changed |= EliminatePHINodes(Fn, *I); Changed |= EliminatePHINodes(MF, *I);
// Remove dead IMPLICIT_DEF instructions. // Remove dead IMPLICIT_DEF instructions.
for (SmallPtrSet<MachineInstr*, 4>::iterator I = ImpDefs.begin(), for (SmallPtrSet<MachineInstr*, 4>::iterator I = ImpDefs.begin(),
@ -81,11 +81,12 @@ bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) {
// Clean up the lowered PHI instructions. // Clean up the lowered PHI instructions.
for (LoweredPHIMap::iterator I = LoweredPHIs.begin(), E = LoweredPHIs.end(); for (LoweredPHIMap::iterator I = LoweredPHIs.begin(), E = LoweredPHIs.end();
I != E; ++I) I != E; ++I)
Fn.DeleteMachineInstr(I->first); MF.DeleteMachineInstr(I->first);
LoweredPHIs.clear(); LoweredPHIs.clear();
ImpDefs.clear(); ImpDefs.clear();
VRegPHIUseCount.clear(); VRegPHIUseCount.clear();
return Changed; return Changed;
} }
@ -364,8 +365,8 @@ void llvm::PHIElimination::LowerAtomicPHINode(
/// used in a PHI node. We map that to the BB the vreg is coming from. This is /// used in a PHI node. We map that to the BB the vreg is coming from. This is
/// used later to determine when the vreg is killed in the BB. /// used later to determine when the vreg is killed in the BB.
/// ///
void llvm::PHIElimination::analyzePHINodes(const MachineFunction& Fn) { void llvm::PHIElimination::analyzePHINodes(const MachineFunction& MF) {
for (MachineFunction::const_iterator I = Fn.begin(), E = Fn.end(); for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
I != E; ++I) I != E; ++I)
for (MachineBasicBlock::const_iterator BBI = I->begin(), BBE = I->end(); for (MachineBasicBlock::const_iterator BBI = I->begin(), BBE = I->end();
BBI != BBE && BBI->isPHI(); ++BBI) BBI != BBE && BBI->isPHI(); ++BBI)