diff options
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index edd11e8..1e9b177 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -856,10 +856,19 @@ bool GVN::processLoad(LoadInst* L, // ... to a pointer that has been loaded from before... MemoryDependenceAnalysis& MD = getAnalysis<MemoryDependenceAnalysis>(); + bool removedNonLocal = false; Instruction* dep = MD.getDependency(L); if (dep == MemoryDependenceAnalysis::NonLocal && - L->getParent() != &L->getParent()->getParent()->getEntryBlock()) - processNonLocalLoad(L, toErase); + L->getParent() != &L->getParent()->getParent()->getEntryBlock()) { + removedNonLocal = processNonLocalLoad(L, toErase); + + if (!removedNonLocal) + last = L; + + return removedNonLocal; + } + + bool deletedLoad = false; while (dep != MemoryDependenceAnalysis::None && |