Implement vector shift up / down and insert zero with ps{rl}lq / ps{rl}ldq.

[oota-llvm.git] / lib / CodeGen / README.txt

diff --git a/lib/CodeGen/README.txt b/lib/CodeGen/README.txt
index 1e2837580ac90a19460b0bd2cad8a34200e38c0d..a66fc9dcdccd555575118e3302bc7214adf8e6b9 100644 (file)
--- a/lib/CodeGen/README.txt
+++ b/lib/CodeGen/README.txt
@@ -179,3 +179,21 @@ work.
 
 The ocaml frametable structure supports liveness information. It would be good
 to support it.
+
+//===---------------------------------------------------------------------===//
+
+The FIXME in ComputeCommonTailLength in BranchFolding.cpp needs to be
+revisited. The check is there to work around a misuse of directives in inline
+assembly.
+
+//===---------------------------------------------------------------------===//
+
+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.