diff --git a/llvm/lib/Target/ARM/ARMFastISel.cpp b/llvm/lib/Target/ARM/ARMFastISel.cpp
index 76b8a1ce7a5f..deaac936fad9 100644
--- a/llvm/lib/Target/ARM/ARMFastISel.cpp
+++ b/llvm/lib/Target/ARM/ARMFastISel.cpp
@@ -1181,7 +1181,7 @@ bool ARMFastISel::ProcessCallArgs(SmallVectorImpl<Value*> &Args,
     switch (VA.getLocInfo()) {
       case CCValAssign::Full: break;
       default:
-      assert(false && "Handle arg promotion.");
+      // TODO: Handle arg promotion.
       return false;
     }