diff options
| -rw-r--r-- | utils/TableGen/DAGISelEmitter.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp index 9dfbe11352..7b00b4e4dc 100644 --- a/utils/TableGen/DAGISelEmitter.cpp +++ b/utils/TableGen/DAGISelEmitter.cpp @@ -1932,6 +1932,7 @@ public: // Don't fold any node which reads or writes a flag and has multiple uses. // FIXME: we really need to separate the concepts of flag and "glue". Those // real flag results, e.g. X86CMP output, can have multiple uses. + // FIXME: If the incoming flag is optional. Then it is ok to fold it. if (!EmittedCheck && (PatternHasProperty(N, SDNodeInfo::SDNPInFlag, ISE) || PatternHasProperty(N, SDNodeInfo::SDNPOptInFlag, ISE) || |