diff options
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 3b08a2dc7a1..7c16b21c928 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -3771,26 +3771,27 @@ Value *llvm::GetUnderlyingObject(Value *V, const DataLayout &DL, return V; } -void llvm::GetUnderlyingObjects(Value *V, SmallVectorImpl<Value *> &Objects, +void llvm::GetUnderlyingObjects(const Value *V, + SmallVectorImpl<const Value *> &Objects, const DataLayout &DL, LoopInfo *LI, unsigned MaxLookup) { - SmallPtrSet<Value *, 4> Visited; - SmallVector<Value *, 4> Worklist; + SmallPtrSet<const Value *, 4> Visited; + SmallVector<const Value *, 4> Worklist; Worklist.push_back(V); do { - Value *P = Worklist.pop_back_val(); + const Value *P = Worklist.pop_back_val(); P = GetUnderlyingObject(P, DL, MaxLookup); if (!Visited.insert(P).second) continue; - if (SelectInst *SI = dyn_cast<SelectInst>(P)) { + if (auto *SI = dyn_cast<SelectInst>(P)) { Worklist.push_back(SI->getTrueValue()); Worklist.push_back(SI->getFalseValue()); continue; } - if (PHINode *PN = dyn_cast<PHINode>(P)) { + if (auto *PN = dyn_cast<PHINode>(P)) { // If this PHI changes the underlying object in every iteration of the // loop, don't look through it. Consider: // int **A; @@ -3851,10 +3852,10 @@ bool llvm::getUnderlyingObjectsForCodeGen(const Value *V, do { V = Working.pop_back_val(); - SmallVector<Value *, 4> Objs; - GetUnderlyingObjects(const_cast<Value *>(V), Objs, DL); + SmallVector<const Value *, 4> Objs; + GetUnderlyingObjects(V, Objs, DL); - for (Value *V : Objs) { + for (const Value *V : Objs) { if (!Visited.insert(V).second) continue; if (Operator::getOpcode(V) == Instruction::IntToPtr) { |
