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[MemDep] Operand visited twice bugfix

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Because operand was not marked as seen it was visited twice.
It doesn't change behavior of optimization, it just saves redudant
visit, so no test changes.

llvm-svn: 290607
This commit is contained in:
Piotr Padlewski 2016-12-27 15:06:07 +00:00
parent 4135139bc6
commit 0d28db774c
1 changed files with 1 additions and 0 deletions
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1
lib/Analysis/MemoryDependenceAnalysis.cpp
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@ -353,6 +353,7 @@ MemoryDependenceResults::getInvariantGroupPointerDependency(LoadInst *LI,
// Queue to process all pointers that are equivalent to load operand.
SmallVector<Value *, 8> LoadOperandsQueue;
LoadOperandsQueue.push_back(LoadOperand);
Seen.insert(LoadOperand);
while (!LoadOperandsQueue.empty()) {
Value *Ptr = LoadOperandsQueue.pop_back_val();
if (isa<GlobalValue>(Ptr))