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-rw-r--r--llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index a5c64f354f4..769cd2343e0 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -441,8 +441,11 @@ public:
for (auto MDN : Globals->operands()) {
// Metadata node contains the global and the fields of "Entry".
assert(MDN->getNumOperands() == 5);
- auto *GV = mdconst::extract_or_null<GlobalVariable>(MDN->getOperand(0));
+ auto *V = mdconst::extract_or_null<Constant>(MDN->getOperand(0));
// The optimizer may optimize away a global entirely.
+ if (!V) continue;
+ auto *StrippedV = V->stripPointerCasts();
+ auto *GV = dyn_cast<GlobalVariable>(StrippedV);
if (!GV) continue;
// We can already have an entry for GV if it was merged with another
// global.
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