1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index 496473d3a4..8ea0f8a3ea 100644
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -420,6 +420,11 @@ void ScheduleDAGInstrs::addVRegUseDeps(SUnit *SU, unsigned OperIdx) {
 /// Return true if MI is an instruction we are unable to reason about
 /// (like a call or something with unmodeled side effects).
 static inline bool isGlobalMemoryObject(AliasAnalysis *AA, MachineInstr *MI) {
+  if (MI->isInlineAsm()) {
+    // Until we can tell if an inline assembly instruction accesses
+    // memory, we must assume all such instructions do so.
+    return true;
+  }
   if (MI->isCall() || MI->hasUnmodeledSideEffects() ||
       (MI->hasOrderedMemoryRef() &&
        (!MI->mayLoad() || !MI->isInvariantLoad(AA))))