diff options
Diffstat (limited to 'lib/Analysis/LazyValueInfo.cpp')
-rw-r--r-- | lib/Analysis/LazyValueInfo.cpp | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/lib/Analysis/LazyValueInfo.cpp b/lib/Analysis/LazyValueInfo.cpp index 3d6c583..9f919f7 100644 --- a/lib/Analysis/LazyValueInfo.cpp +++ b/lib/Analysis/LazyValueInfo.cpp @@ -12,7 +12,6 @@ // //===----------------------------------------------------------------------===// -#define DEBUG_TYPE "lazy-value-info" #include "llvm/Analysis/LazyValueInfo.h" #include "llvm/ADT/DenseSet.h" #include "llvm/ADT/STLExtras.h" @@ -34,6 +33,8 @@ using namespace llvm; using namespace PatternMatch; +#define DEBUG_TYPE "lazy-value-info" + char LazyValueInfo::ID = 0; INITIALIZE_PASS_BEGIN(LazyValueInfo, "lazy-value-info", "Lazy Value Information Analysis", false, true) @@ -82,7 +83,7 @@ class LVILatticeVal { ConstantRange Range; public: - LVILatticeVal() : Tag(undefined), Val(0), Range(1, true) {} + LVILatticeVal() : Tag(undefined), Val(nullptr), Range(1, true) {} static LVILatticeVal get(Constant *C) { LVILatticeVal Res; @@ -516,7 +517,7 @@ bool LazyValueInfoCache::solveBlockValue(Value *Val, BasicBlock *BB) { BBLV.markOverdefined(); Instruction *BBI = dyn_cast<Instruction>(Val); - if (BBI == 0 || BBI->getParent() != BB) { + if (!BBI || BBI->getParent() != BB) { return ODCacheUpdater.markResult(solveBlockValueNonLocal(BBLV, Val, BB)); } @@ -595,7 +596,7 @@ bool LazyValueInfoCache::solveBlockValueNonLocal(LVILatticeVal &BBLV, Value *UnderlyingVal = GetUnderlyingObject(Val); // If 'GetUnderlyingObject' didn't converge, skip it. It won't converge // inside InstructionDereferencesPointer either. - if (UnderlyingVal == GetUnderlyingObject(UnderlyingVal, NULL, 1)) { + if (UnderlyingVal == GetUnderlyingObject(UnderlyingVal, nullptr, 1)) { for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE; ++BI) { if (InstructionDereferencesPointer(BI, UnderlyingVal)) { @@ -813,7 +814,7 @@ static bool getEdgeValueLocal(Value *Val, BasicBlock *BBFrom, // Recognize the range checking idiom that InstCombine produces. // (X-C1) u< C2 --> [C1, C1+C2) - ConstantInt *NegOffset = 0; + ConstantInt *NegOffset = nullptr; if (ICI->getPredicate() == ICmpInst::ICMP_ULT) match(ICI->getOperand(0), m_Add(m_Specific(Val), m_ConstantInt(NegOffset))); @@ -1014,7 +1015,7 @@ bool LazyValueInfo::runOnFunction(Function &F) { getCache(PImpl).clear(); DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>(); - DL = DLP ? &DLP->getDataLayout() : 0; + DL = DLP ? &DLP->getDataLayout() : nullptr; TLI = &getAnalysis<TargetLibraryInfo>(); // Fully lazy. @@ -1030,7 +1031,7 @@ void LazyValueInfo::releaseMemory() { // If the cache was allocated, free it. if (PImpl) { delete &getCache(PImpl); - PImpl = 0; + PImpl = nullptr; } } @@ -1044,7 +1045,7 @@ Constant *LazyValueInfo::getConstant(Value *V, BasicBlock *BB) { if (const APInt *SingleVal = CR.getSingleElement()) return ConstantInt::get(V->getContext(), *SingleVal); } - return 0; + return nullptr; } /// getConstantOnEdge - Determine whether the specified value is known to be a @@ -1060,7 +1061,7 @@ Constant *LazyValueInfo::getConstantOnEdge(Value *V, BasicBlock *FromBB, if (const APInt *SingleVal = CR.getSingleElement()) return ConstantInt::get(V->getContext(), *SingleVal); } - return 0; + return nullptr; } /// getPredicateOnEdge - Determine whether the specified value comparison @@ -1072,7 +1073,7 @@ LazyValueInfo::getPredicateOnEdge(unsigned Pred, Value *V, Constant *C, LVILatticeVal Result = getCache(PImpl).getValueOnEdge(V, FromBB, ToBB); // If we know the value is a constant, evaluate the conditional. - Constant *Res = 0; + Constant *Res = nullptr; if (Result.isConstant()) { Res = ConstantFoldCompareInstOperands(Pred, Result.getConstant(), C, DL, TLI); |