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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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26
lib/CodeGen/LiveVariables.cpp
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@@ -61,7 +61,7 @@ LiveVariables::VarInfo::findKill(const MachineBasicBlock *MBB) const {
for (unsigned i = 0, e = Kills.size(); i != e; ++i)
if (Kills[i]->getParent() == MBB)
return Kills[i];
return NULL;
return nullptr;
}
void LiveVariables::VarInfo::dump() const {
@@ -193,7 +193,7 @@ MachineInstr *LiveVariables::FindLastPartialDef(unsigned Reg,
SmallSet<unsigned,4> &PartDefRegs) {
unsigned LastDefReg = 0;
unsigned LastDefDist = 0;
MachineInstr *LastDef = NULL;
MachineInstr *LastDef = nullptr;
for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) {
unsigned SubReg = *SubRegs;
MachineInstr *Def = PhysRegDef[SubReg];
@@ -208,7 +208,7 @@ MachineInstr *LiveVariables::FindLastPartialDef(unsigned Reg,
}
if (!LastDef)
return 0;
return nullptr;
PartDefRegs.insert(LastDefReg);
for (unsigned i = 0, e = LastDef->getNumOperands(); i != e; ++i) {
@@ -282,7 +282,7 @@ MachineInstr *LiveVariables::FindLastRefOrPartRef(unsigned Reg) {
MachineInstr *LastDef = PhysRegDef[Reg];
MachineInstr *LastUse = PhysRegUse[Reg];
if (!LastDef && !LastUse)
return 0;
return nullptr;
MachineInstr *LastRefOrPartRef = LastUse ? LastUse : LastDef;
unsigned LastRefOrPartRefDist = DistanceMap[LastRefOrPartRef];
@@ -333,7 +333,7 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) {
// AX<dead> = AL<imp-def>
// = AL<kill>
// AX =
MachineInstr *LastPartDef = 0;
MachineInstr *LastPartDef = nullptr;
unsigned LastPartDefDist = 0;
SmallSet<unsigned, 8> PartUses;
for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) {
@@ -436,7 +436,7 @@ void LiveVariables::HandleRegMask(const MachineOperand &MO) {
for (MCSuperRegIterator SR(Reg, TRI); SR.isValid(); ++SR)
if ((PhysRegDef[*SR] || PhysRegUse[*SR]) && MO.clobbersPhysReg(*SR))
Super = *SR;
HandlePhysRegKill(Super, 0);
HandlePhysRegKill(Super, nullptr);
}
}
@@ -492,7 +492,7 @@ void LiveVariables::UpdatePhysRegDefs(MachineInstr *MI,
SubRegs.isValid(); ++SubRegs) {
unsigned SubReg = *SubRegs;
PhysRegDef[SubReg] = MI;
PhysRegUse[SubReg] = NULL;
PhysRegUse[SubReg] = nullptr;
}
}
}
@@ -506,8 +506,8 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
PhysRegDef = new MachineInstr*[NumRegs];
PhysRegUse = new MachineInstr*[NumRegs];
PHIVarInfo = new SmallVector<unsigned, 4>[MF->getNumBlockIDs()];
std::fill(PhysRegDef, PhysRegDef + NumRegs, (MachineInstr*)0);
std::fill(PhysRegUse, PhysRegUse + NumRegs, (MachineInstr*)0);
std::fill(PhysRegDef, PhysRegDef + NumRegs, nullptr);
std::fill(PhysRegUse, PhysRegUse + NumRegs, nullptr);
PHIJoins.clear();
// FIXME: LiveIntervals will be updated to remove its dependence on
@@ -536,7 +536,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
EE = MBB->livein_end(); II != EE; ++II) {
assert(TargetRegisterInfo::isPhysicalRegister(*II) &&
"Cannot have a live-in virtual register!");
HandlePhysRegDef(*II, 0, Defs);
HandlePhysRegDef(*II, nullptr, Defs);
}
// Loop over all of the instructions, processing them.
@@ -639,10 +639,10 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
// available at the end of the basic block.
for (unsigned i = 0; i != NumRegs; ++i)
if ((PhysRegDef[i] || PhysRegUse[i]) && !LiveOuts.count(i))
HandlePhysRegDef(i, 0, Defs);
HandlePhysRegDef(i, nullptr, Defs);
std::fill(PhysRegDef, PhysRegDef + NumRegs, (MachineInstr*)0);
std::fill(PhysRegUse, PhysRegUse + NumRegs, (MachineInstr*)0);
std::fill(PhysRegDef, PhysRegDef + NumRegs, nullptr);
std::fill(PhysRegUse, PhysRegUse + NumRegs, nullptr);
}
// Convert and transfer the dead / killed information we have gathered into