commit dc8365d4f33c12d7bc4cbffbdcc0122df8941558
author Evan Cheng <evan.cheng@apple.com> Thu Jan 26 02:13:31 2006 +0000
committer Evan Cheng <evan.cheng@apple.com> Thu Jan 26 02:13:31 2006 +0000
tree 0596e9cf9c590cc28929fd4f732cce6a21d75a6c
parent 944d1e91ea00032fda9b54e20168fa5fb6290c9c

Add a FIXME comment.

llvm-svn: 25635

llvm/utils/TableGen/DAGISelEmitter.cpp

diff --git a/llvm/utils/TableGen/DAGISelEmitter.cpp b/llvm/utils/TableGen/DAGISelEmitter.cpp
index 9dfbe11..7b00b4e 100644
--- a/llvm/utils/TableGen/DAGISelEmitter.cpp
+++ b/llvm/utils/TableGen/DAGISelEmitter.cpp
@@ -1932,6 +1932,7 @@
     // 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) ||