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-rw-r--r--instrumentation/SanitizerCoverageLTO.so.cc3
1 files changed, 3 insertions, 0 deletions
diff --git a/instrumentation/SanitizerCoverageLTO.so.cc b/instrumentation/SanitizerCoverageLTO.so.cc
index 20f1856e..74ef03df 100644
--- a/instrumentation/SanitizerCoverageLTO.so.cc
+++ b/instrumentation/SanitizerCoverageLTO.so.cc
@@ -1500,6 +1500,9 @@ void ModuleSanitizerCoverage::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
     if (use_threadsafe_counters) {                                /* Atomic */
 
       IRB.CreateAtomicRMW(llvm::AtomicRMWInst::BinOp::Add, MapPtrIdx, One,
+#if LLVM_VERSION_MAJOR >= 13
+                          llvm_MaybeAlign(1),
+#endif
                           llvm::AtomicOrdering::Monotonic);
 
     } else {