add anote

llvm-svn: 46918
2008-02-10 01:01:35 +00:00 · 2008-02-10 01:01:35 +00:00 · 0ededbc68e
parent 43c50866f1
commit 0ededbc68e
1 changed files with 7 additions and 0 deletions
--- a/llvm/lib/CodeGen/README.txt
+++ b/llvm/lib/CodeGen/README.txt
@ -192,3 +192,10 @@ It would be good to detect collector/target compatibility instead of silently
 doing the wrong thing.

 //===---------------------------------------------------------------------===//
+
+It would be really nice to be able to write patterns in .td files for copies,
+which would eliminate a bunch of explicit predicates on them (e.g. no side 
+effects).  Once this is in place, it would be even better to have tblgen 
+synthesize the various copy insertion/inspection methods in TargetInstrInfo.
+
+//===---------------------------------------------------------------------===//