1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/MemProfInstrumentation.cpp b/llvm/lib/Transforms/Instrumentation/MemProfInstrumentation.cpp
index 3ae771a..3c0f185 100644
--- a/llvm/lib/Transforms/Instrumentation/MemProfInstrumentation.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemProfInstrumentation.cpp
@@ -338,7 +338,7 @@ MemProfiler::isInterestingMemoryAccess(Instruction *I) const {
       }
 
       auto *BasePtr = CI->getOperand(0 + OpOffset);
-      Access.MaybeMask = CI->getOperand(2 + OpOffset);
+      Access.MaybeMask = CI->getOperand(1 + OpOffset);
       Access.Addr = BasePtr;
     }
   }