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remove function names from comments; NFC 

llvm-svn: 244509
This commit is contained in:
Sanjay Patel 2015-08-10 21:28:16 +00:00
parent 2f43dd5a12
commit cc6554361c
1 changed files with 20 additions and 22 deletions
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42
llvm/lib/CodeGen/TailDuplication.cpp
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@ -59,7 +59,7 @@ TailDupLimit("tail-dup-limit", cl::init(~0U), cl::Hidden);
typedef std::vector<std::pair<MachineBasicBlock*,unsigned> > AvailableValsTy;
namespace {
/// TailDuplicatePass - Perform tail duplication.
/// Perform tail duplication.
class TailDuplicatePass : public MachineFunctionPass {
const TargetInstrInfo *TII;
const TargetRegisterInfo *TRI;
@ -69,11 +69,11 @@ namespace {
std::unique_ptr<RegScavenger> RS;
bool PreRegAlloc;
// SSAUpdateVRs - A list of virtual registers for which to update SSA form.
// A list of virtual registers for which to update SSA form.
SmallVector<unsigned, 16> SSAUpdateVRs;
// SSAUpdateVals - For each virtual register in SSAUpdateVals keep a list of
// source virtual registers.
// For each virtual register in SSAUpdateVals keep a list of source virtual
// registers.
DenseMap<unsigned, AvailableValsTy> SSAUpdateVals;
public:
@ -207,7 +207,7 @@ static void VerifyPHIs(MachineFunction &MF, bool CheckExtra) {
}
}
/// TailDuplicateAndUpdate - Tail duplicate the block and cleanup.
/// Tail duplicate the block and cleanup.
bool
TailDuplicatePass::TailDuplicateAndUpdate(MachineBasicBlock *MBB,
bool IsSimple,
@ -310,9 +310,9 @@ TailDuplicatePass::TailDuplicateAndUpdate(MachineBasicBlock *MBB,
return true;
}
/// TailDuplicateBlocks - Look for small blocks that are unconditionally
/// branched to and do not fall through. Tail-duplicate their instructions
/// into their predecessors to eliminate (dynamic) branches.
/// Look for small blocks that are unconditionally branched to and do not fall
/// through. Tail-duplicate their instructions into their predecessors to
/// eliminate (dynamic) branches.
bool TailDuplicatePass::TailDuplicateBlocks(MachineFunction &MF) {
bool MadeChange = false;
@ -375,8 +375,7 @@ static void getRegsUsedByPHIs(const MachineBasicBlock &BB,
}
}
/// AddSSAUpdateEntry - Add a definition and source virtual registers pair for
/// SSA update.
/// Add a definition and source virtual registers pair for SSA update.
void TailDuplicatePass::AddSSAUpdateEntry(unsigned OrigReg, unsigned NewReg,
MachineBasicBlock *BB) {
DenseMap<unsigned, AvailableValsTy>::iterator LI= SSAUpdateVals.find(OrigReg);
@ -390,9 +389,8 @@ void TailDuplicatePass::AddSSAUpdateEntry(unsigned OrigReg, unsigned NewReg,
}
}
/// ProcessPHI - Process PHI node in TailBB by turning it into a copy in PredBB.
/// Remember the source register that's contributed by PredBB and update SSA
/// update map.
/// Process PHI node in TailBB by turning it into a copy in PredBB. Remember the
/// source register that's contributed by PredBB and update SSA update map.
void TailDuplicatePass::ProcessPHI(
MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,
DenseMap<unsigned, unsigned> &LocalVRMap,
@ -422,7 +420,7 @@ void TailDuplicatePass::ProcessPHI(
MI->eraseFromParent();
}
/// DuplicateInstruction - Duplicate a TailBB instruction to PredBB and update
/// Duplicate a TailBB instruction to PredBB and update
/// the source operands due to earlier PHI translation.
void TailDuplicatePass::DuplicateInstruction(MachineInstr *MI,
MachineBasicBlock *TailBB,
@ -459,9 +457,9 @@ void TailDuplicatePass::DuplicateInstruction(MachineInstr *MI,
PredBB->insert(PredBB->instr_end(), NewMI);
}
/// UpdateSuccessorsPHIs - After FromBB is tail duplicated into its predecessor
/// blocks, the successors have gained new predecessors. Update the PHI
/// instructions in them accordingly.
/// After FromBB is tail duplicated into its predecessor blocks, the successors
/// have gained new predecessors. Update the PHI instructions in them
/// accordingly.
void
TailDuplicatePass::UpdateSuccessorsPHIs(MachineBasicBlock *FromBB, bool isDead,
SmallVectorImpl<MachineBasicBlock *> &TDBBs,
@ -545,7 +543,7 @@ TailDuplicatePass::UpdateSuccessorsPHIs(MachineBasicBlock *FromBB, bool isDead,
}
}
/// shouldTailDuplicate - Determine if it is profitable to duplicate this block.
/// Determine if it is profitable to duplicate this block.
bool
TailDuplicatePass::shouldTailDuplicate(const MachineFunction &MF,
bool IsSimple,
@ -621,7 +619,7 @@ TailDuplicatePass::shouldTailDuplicate(const MachineFunction &MF,
return canCompletelyDuplicateBB(TailBB);
}
/// isSimpleBB - True if this BB has only one unconditional jump.
/// True if this BB has only one unconditional jump.
bool
TailDuplicatePass::isSimpleBB(MachineBasicBlock *TailBB) {
if (TailBB->succ_size() != 1)
@ -744,7 +742,7 @@ TailDuplicatePass::duplicateSimpleBB(MachineBasicBlock *TailBB,
return Changed;
}
/// TailDuplicate - If it is profitable, duplicate TailBB's contents in each
/// If it is profitable, duplicate TailBB's contents in each
/// of its predecessors.
bool
TailDuplicatePass::TailDuplicate(MachineBasicBlock *TailBB,
@ -961,8 +959,8 @@ TailDuplicatePass::TailDuplicate(MachineBasicBlock *TailBB,
return Changed;
}
/// RemoveDeadBlock - Remove the specified dead machine basic block from the
/// function, updating the CFG.
/// Remove the specified dead machine basic block from the function, updating
/// the CFG.
void TailDuplicatePass::RemoveDeadBlock(MachineBasicBlock *MBB) {
assert(MBB->pred_empty() && "MBB must be dead!");
DEBUG(dbgs() << "\nRemoving MBB: " << *MBB);