add some notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57631 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/README-UNIMPLEMENTED.txt b/lib/Target/X86/README-UNIMPLEMENTED.txt
index b9ba4937792c82fa465e8e917e5cfbb92558cdae..6303bd6ec37f8d9a065709a3651155aaaeae0e2d 100644 (file)
--- a/lib/Target/X86/README-UNIMPLEMENTED.txt
+++ b/lib/Target/X86/README-UNIMPLEMENTED.txt
@@ -10,5 +10,5 @@ which would be great.
 1) vector shifts
 2) vector comparisons
 3) vector fp<->int comparisons: PR2683, PR2684, PR2685, PR2686, PR2688
-
+4) bitcasts from vectors to scalars: PR2804