1 files changed, 3 insertions, 1 deletions
diff --git a/lib/IR/InlineAsm.cpp b/lib/IR/InlineAsm.cpp
index b456d9f..aa9e027 100644
--- a/lib/IR/InlineAsm.cpp
+++ b/lib/IR/InlineAsm.cpp
@@ -167,7 +167,9 @@ bool InlineAsm::ConstraintInfo::Parse(StringRef Str,
         // Note that operand #n has a matching input.
         scInfo.MatchingInput = ConstraintsSoFar.size();
       } else {
-        if (ConstraintsSoFar[N].hasMatchingInput())
+        if (ConstraintsSoFar[N].hasMatchingInput() &&
+            (size_t)ConstraintsSoFar[N].MatchingInput !=
+                ConstraintsSoFar.size())
           return true;
         // Note that operand #n has a matching input.
         ConstraintsSoFar[N].MatchingInput = ConstraintsSoFar.size();