diff options
Diffstat (limited to 'llvm/lib/Analysis/Loads.cpp')
-rw-r--r-- | llvm/lib/Analysis/Loads.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/Loads.cpp b/llvm/lib/Analysis/Loads.cpp index 7bbd469..11ccfa3 100644 --- a/llvm/lib/Analysis/Loads.cpp +++ b/llvm/lib/Analysis/Loads.cpp @@ -25,6 +25,8 @@ using namespace llvm; +extern cl::opt<bool> UseDerefAtPointSemantics; + static bool isAligned(const Value *Base, Align Alignment, const DataLayout &DL) { return Base->getPointerAlignment(DL) >= Alignment; @@ -168,7 +170,7 @@ static bool isDereferenceableAndAlignedPointer( Size, DL, CtxI, AC, DT, TLI, Visited, MaxDepth); - if (CtxI) { + if (CtxI && (!UseDerefAtPointSemantics || !V->canBeFreed())) { /// Look through assumes to see if both dereferencability and alignment can /// be proven by an assume if needed. RetainedKnowledge AlignRK; |