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Tidy up. Naming conventions.

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llvm-svn: 155960
This commit is contained in:
Jim Grosbach 2012-05-01 23:21:41 +00:00
parent 5a4bcd5559
commit 1e9562afb1
1 changed files with 16 additions and 16 deletions
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32
lib/CodeGen/PeepholeOptimizer.cpp
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@ -95,14 +95,14 @@ namespace {
}
private:
bool OptimizeBitcastInstr(MachineInstr *MI, MachineBasicBlock *MBB);
bool OptimizeCmpInstr(MachineInstr *MI, MachineBasicBlock *MBB);
bool OptimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
bool optimizeBitcastInstr(MachineInstr *MI, MachineBasicBlock *MBB);
bool optimizeCmpInstr(MachineInstr *MI, MachineBasicBlock *MBB);
bool optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
SmallPtrSet<MachineInstr*, 8> &LocalMIs);
bool isMoveImmediate(MachineInstr *MI,
SmallSet<unsigned, 4> &ImmDefRegs,
DenseMap<unsigned, MachineInstr*> &ImmDefMIs);
bool FoldImmediate(MachineInstr *MI, MachineBasicBlock *MBB,
bool foldImmediate(MachineInstr *MI, MachineBasicBlock *MBB,
SmallSet<unsigned, 4> &ImmDefRegs,
DenseMap<unsigned, MachineInstr*> &ImmDefMIs);
};
@ -116,7 +116,7 @@ INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
INITIALIZE_PASS_END(PeepholeOptimizer, "peephole-opts",
"Peephole Optimizations", false, false)
/// OptimizeExtInstr - If instruction is a copy-like instruction, i.e. it reads
/// optimizeExtInstr - If instruction is a copy-like instruction, i.e. it reads
/// a single register and writes a single register and it does not modify the
/// source, and if the source value is preserved as a sub-register of the
/// result, then replace all reachable uses of the source with the subreg of the
@ -126,7 +126,7 @@ INITIALIZE_PASS_END(PeepholeOptimizer, "peephole-opts",
/// the code. Since this code does not currently share EXTRACTs, just ignore all
/// debug uses.
bool PeepholeOptimizer::
OptimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
SmallPtrSet<MachineInstr*, 8> &LocalMIs) {
unsigned SrcReg, DstReg, SubIdx;
if (!TII->isCoalescableExtInstr(*MI, SrcReg, DstReg, SubIdx))
@ -255,7 +255,7 @@ OptimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
return Changed;
}
/// OptimizeBitcastInstr - If the instruction is a bitcast instruction A that
/// optimizeBitcastInstr - If the instruction is a bitcast instruction A that
/// cannot be optimized away during isel (e.g. ARM::VMOVSR, which bitcast
/// a value cross register classes), and the source is defined by another
/// bitcast instruction B. And if the register class of source of B matches
@ -265,7 +265,7 @@ OptimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
/// %vreg3<def> = VMOVRS %vreg0
/// Replace all uses of vreg3 with vreg1.
bool PeepholeOptimizer::OptimizeBitcastInstr(MachineInstr *MI,
bool PeepholeOptimizer::optimizeBitcastInstr(MachineInstr *MI,
MachineBasicBlock *MBB) {
unsigned NumDefs = MI->getDesc().getNumDefs();
unsigned NumSrcs = MI->getDesc().getNumOperands() - NumDefs;
@ -327,11 +327,11 @@ bool PeepholeOptimizer::OptimizeBitcastInstr(MachineInstr *MI,
return true;
}
/// OptimizeCmpInstr - If the instruction is a compare and the previous
/// optimizeCmpInstr - If the instruction is a compare and the previous
/// instruction it's comparing against all ready sets (or could be modified to
/// set) the same flag as the compare, then we can remove the comparison and use
/// the flag from the previous instruction.
bool PeepholeOptimizer::OptimizeCmpInstr(MachineInstr *MI,
bool PeepholeOptimizer::optimizeCmpInstr(MachineInstr *MI,
MachineBasicBlock *MBB) {
// If this instruction is a comparison against zero and isn't comparing a
// physical register, we can try to optimize it.
@ -368,10 +368,10 @@ bool PeepholeOptimizer::isMoveImmediate(MachineInstr *MI,
return false;
}
/// FoldImmediate - Try folding register operands that are defined by move
/// foldImmediate - Try folding register operands that are defined by move
/// immediate instructions, i.e. a trivial constant folding optimization, if
/// and only if the def and use are in the same BB.
bool PeepholeOptimizer::FoldImmediate(MachineInstr *MI, MachineBasicBlock *MBB,
bool PeepholeOptimizer::foldImmediate(MachineInstr *MI, MachineBasicBlock *MBB,
SmallSet<unsigned, 4> &ImmDefRegs,
DenseMap<unsigned, MachineInstr*> &ImmDefMIs) {
for (unsigned i = 0, e = MI->getDesc().getNumOperands(); i != e; ++i) {
@ -430,7 +430,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
}
if (MI->isBitcast()) {
if (OptimizeBitcastInstr(MI, MBB)) {
if (optimizeBitcastInstr(MI, MBB)) {
// MI is deleted.
LocalMIs.erase(MI);
Changed = true;
@ -438,7 +438,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
continue;
}
} else if (MI->isCompare()) {
if (OptimizeCmpInstr(MI, MBB)) {
if (optimizeCmpInstr(MI, MBB)) {
// MI is deleted.
LocalMIs.erase(MI);
Changed = true;
@ -450,9 +450,9 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
if (isMoveImmediate(MI, ImmDefRegs, ImmDefMIs)) {
SeenMoveImm = true;
} else {
Changed |= OptimizeExtInstr(MI, MBB, LocalMIs);
Changed |= optimizeExtInstr(MI, MBB, LocalMIs);
if (SeenMoveImm)
Changed |= FoldImmediate(MI, MBB, ImmDefRegs, ImmDefMIs);
Changed |= foldImmediate(MI, MBB, ImmDefRegs, ImmDefMIs);
}
First = false;