diff options
author | Craig Topper <craig.topper@gmail.com> | 2014-04-25 05:29:35 +0000 |
---|---|---|
committer | Craig Topper <craig.topper@gmail.com> | 2014-04-25 05:29:35 +0000 |
commit | 8d7221ccf5012e7ece93aa976bf2603789b31441 (patch) | |
tree | 7f678906b5759ba6b3775b14f085ecc6c90e7ec6 /lib/Transforms/ObjCARC/ObjCARCOpts.cpp | |
parent | 39087bfbf0b33995b337b676e3c715b3e31a6c1a (diff) | |
download | llvm-8d7221ccf5012e7ece93aa976bf2603789b31441.tar.gz llvm-8d7221ccf5012e7ece93aa976bf2603789b31441.tar.bz2 llvm-8d7221ccf5012e7ece93aa976bf2603789b31441.tar.xz |
[C++] Use 'nullptr'. Transforms edition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207196 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/ObjCARC/ObjCARCOpts.cpp')
-rw-r--r-- | lib/Transforms/ObjCARC/ObjCARCOpts.cpp | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp index d64006fd24..f29cb2d91a 100644 --- a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp +++ b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp @@ -157,7 +157,7 @@ static const Value *FindSingleUseIdentifiedObject(const Value *Arg) { return FindSingleUseIdentifiedObject( cast<CallInst>(Arg)->getArgOperand(0)); if (!IsObjCIdentifiedObject(Arg)) - return 0; + return nullptr; return Arg; } @@ -166,12 +166,12 @@ static const Value *FindSingleUseIdentifiedObject(const Value *Arg) { if (IsObjCIdentifiedObject(Arg)) { for (const User *U : Arg->users()) if (!U->use_empty() || StripPointerCastsAndObjCCalls(U) != Arg) - return 0; + return nullptr; return Arg; } - return 0; + return nullptr; } /// This is a wrapper around getUnderlyingObjCPtr along the lines of @@ -374,7 +374,7 @@ namespace { bool CFGHazardAfflicted; RRInfo() : - KnownSafe(false), IsTailCallRelease(false), ReleaseMetadata(0), + KnownSafe(false), IsTailCallRelease(false), ReleaseMetadata(nullptr), CFGHazardAfflicted(false) {} void clear(); @@ -389,7 +389,7 @@ namespace { void RRInfo::clear() { KnownSafe = false; IsTailCallRelease = false; - ReleaseMetadata = 0; + ReleaseMetadata = nullptr; Calls.clear(); ReverseInsertPts.clear(); CFGHazardAfflicted = false; @@ -398,7 +398,7 @@ void RRInfo::clear() { bool RRInfo::Merge(const RRInfo &Other) { // Conservatively merge the ReleaseMetadata information. if (ReleaseMetadata != Other.ReleaseMetadata) - ReleaseMetadata = 0; + ReleaseMetadata = nullptr; // Conservatively merge the boolean state. KnownSafe &= Other.KnownSafe; @@ -457,7 +457,7 @@ namespace { } bool IsTrackingImpreciseReleases() const { - return RRI.ReleaseMetadata != 0; + return RRI.ReleaseMetadata != nullptr; } const MDNode *GetReleaseMetadata() const { @@ -1719,7 +1719,7 @@ ObjCARCOpt::VisitInstructionBottomUp(Instruction *Inst, BBState &MyStates) { bool NestingDetected = false; InstructionClass Class = GetInstructionClass(Inst); - const Value *Arg = 0; + const Value *Arg = nullptr; DEBUG(dbgs() << "Class: " << Class << "\n"); @@ -1975,7 +1975,7 @@ ObjCARCOpt::VisitInstructionTopDown(Instruction *Inst, BBState &MyStates) { bool NestingDetected = false; InstructionClass Class = GetInstructionClass(Inst); - const Value *Arg = 0; + const Value *Arg = nullptr; switch (Class) { case IC_RetainBlock: @@ -2027,7 +2027,7 @@ ObjCARCOpt::VisitInstructionTopDown(Instruction *Inst, switch (OldSeq) { case S_Retain: case S_CanRelease: - if (OldSeq == S_Retain || ReleaseMetadata != 0) + if (OldSeq == S_Retain || ReleaseMetadata != nullptr) S.ClearReverseInsertPts(); // FALL THROUGH case S_Use: @@ -2433,7 +2433,7 @@ ObjCARCOpt::ConnectTDBUTraversals(DenseMap<const BasicBlock *, BBState> } else { if (ReleasesToMove.ReleaseMetadata != NewRetainReleaseRRI.ReleaseMetadata) - ReleasesToMove.ReleaseMetadata = 0; + ReleasesToMove.ReleaseMetadata = nullptr; if (ReleasesToMove.IsTailCallRelease != NewRetainReleaseRRI.IsTailCallRelease) ReleasesToMove.IsTailCallRelease = false; @@ -2885,7 +2885,7 @@ FindPredecessorRetainWithSafePath(const Value *Arg, BasicBlock *BB, FindDependencies(CanChangeRetainCount, Arg, BB, Autorelease, DepInsts, Visited, PA); if (DepInsts.size() != 1) - return 0; + return nullptr; CallInst *Retain = dyn_cast_or_null<CallInst>(*DepInsts.begin()); @@ -2894,7 +2894,7 @@ FindPredecessorRetainWithSafePath(const Value *Arg, BasicBlock *BB, if (!Retain || !IsRetain(GetBasicInstructionClass(Retain)) || GetObjCArg(Retain) != Arg) { - return 0; + return nullptr; } return Retain; @@ -2912,17 +2912,17 @@ FindPredecessorAutoreleaseWithSafePath(const Value *Arg, BasicBlock *BB, FindDependencies(NeedsPositiveRetainCount, Arg, BB, Ret, DepInsts, V, PA); if (DepInsts.size() != 1) - return 0; + return nullptr; CallInst *Autorelease = dyn_cast_or_null<CallInst>(*DepInsts.begin()); if (!Autorelease) - return 0; + return nullptr; InstructionClass AutoreleaseClass = GetBasicInstructionClass(Autorelease); if (!IsAutorelease(AutoreleaseClass)) - return 0; + return nullptr; if (GetObjCArg(Autorelease) != Arg) - return 0; + return nullptr; return Autorelease; } |