diff options
| -rw-r--r-- | utils/TableGen/DAGISelMatcherOpt.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/utils/TableGen/DAGISelMatcherOpt.cpp b/utils/TableGen/DAGISelMatcherOpt.cpp index 0e89fa0..97ddf67 100644 --- a/utils/TableGen/DAGISelMatcherOpt.cpp +++ b/utils/TableGen/DAGISelMatcherOpt.cpp @@ -351,6 +351,11 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) { return; } + if (NewOptionsToMatch.empty()) { + MatcherPtr.reset(0); + return; + } + // If our factoring failed (didn't achieve anything) see if we can simplify in // other ways. |