Add a fixme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58514 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index e97ea735ed25fc45560609ee6adf1e941fceb50e..8f223b36007f5a2a97a5e0b6547d3a348b47bcc7 100644 (file)
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -769,6 +769,9 @@ bool PreAllocSplitting::SplitRegLiveInterval(LiveInterval *LI) {
   ShrinkWrapLiveInterval(ValNo, BarrierMBB, NULL, DefMBB, Visited,
                          Uses, UseMIs, UseMBBs);
 
+  // FIXME: If ValNo->hasPHIKill is false, then renumber the val# by
+  // the restore.
+
   // Remove live range from barrier to the restore. FIXME: Find a better
   // point to re-start the live interval.
   UpdateRegisterInterval(ValNo, LIs->getUseIndex(BarrierIdx)+1,