1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/ARM64/ARM64TargetMachine.cpp b/lib/Target/ARM64/ARM64TargetMachine.cpp
index f4a7996379..946a0ee59e 100644
--- a/lib/Target/ARM64/ARM64TargetMachine.cpp
+++ b/lib/Target/ARM64/ARM64TargetMachine.cpp
@@ -111,6 +111,11 @@ bool ARM64PassConfig::addPreISel() {
     addPass(createGlobalMergePass(TM));
   if (TM->getOptLevel() != CodeGenOpt::None)
     addPass(createARM64AddressTypePromotionPass());
+
+  // Always expand atomic operations, we don't deal with atomicrmw or cmpxchg
+  // ourselves.
+  addPass(createAtomicExpandLoadLinkedPass(TM));
+
   return false;
 }