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[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206142 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-04-14 00:51:57 +00:00
parent b9ed50cf17
commit 4ba844388c
169 changed files with 1547 additions and 1489 deletions
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12
lib/CodeGen/PeepholeOptimizer.cpp
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@@ -183,7 +183,7 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
// If UseSrcSubIdx is Set, SubIdx also applies to SrcReg, and only uses of
// SrcReg:SubIdx should be replaced.
bool UseSrcSubIdx = TM->getRegisterInfo()->
getSubClassWithSubReg(MRI->getRegClass(SrcReg), SubIdx) != 0;
getSubClassWithSubReg(MRI->getRegClass(SrcReg), SubIdx) != nullptr;
// The source has other uses. See if we can replace the other uses with use of
// the result of the extension.
@@ -358,7 +358,7 @@ static bool shareSameRegisterFile(const TargetRegisterInfo &TRI,
unsigned SrcIdx, DefIdx;
if (SrcSubReg && DefSubReg)
return TRI.getCommonSuperRegClass(SrcRC, SrcSubReg, DefRC, DefSubReg,
SrcIdx, DefIdx) != NULL;
SrcIdx, DefIdx) != nullptr;
// At most one of the register is a sub register, make it Src to avoid
// duplicating the test.
if (!SrcSubReg) {
@@ -368,9 +368,9 @@ static bool shareSameRegisterFile(const TargetRegisterInfo &TRI,
// One of the register is a sub register, check if we can get a superclass.
if (SrcSubReg)
return TRI.getMatchingSuperRegClass(SrcRC, DefRC, SrcSubReg) != NULL;
return TRI.getMatchingSuperRegClass(SrcRC, DefRC, SrcSubReg) != nullptr;
// Plain copy.
return TRI.getCommonSubClass(DefRC, SrcRC) != NULL;
return TRI.getCommonSubClass(DefRC, SrcRC) != nullptr;
}
/// \brief Get the index of the definition and source for \p Copy
@@ -568,7 +568,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
TM = &MF.getTarget();
TII = TM->getInstrInfo();
MRI = &MF.getRegInfo();
DT = Aggressive ? &getAnalysis<MachineDominatorTree>() : 0;
DT = Aggressive ? &getAnalysis<MachineDominatorTree>() : nullptr;
bool Changed = false;
@@ -643,7 +643,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
// Save FoldAsLoadDefReg because optimizeLoadInstr() resets it and
// we need it for markUsesInDebugValueAsUndef().
unsigned FoldedReg = FoldAsLoadDefReg;
MachineInstr *DefMI = 0;
MachineInstr *DefMI = nullptr;
MachineInstr *FoldMI = TII->optimizeLoadInstr(MI, MRI,
FoldAsLoadDefReg,
DefMI);