Use subregs to improve any_extend code generation when feasible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41013 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CREDITS.TXT b/CREDITS.TXT
index 13611d2..8dfed19 100644
--- a/CREDITS.TXT
+++ b/CREDITS.TXT
@@ -135,7 +135,8 @@
 
 N: Christopher Lamb
 E: christopher.lamb@gmail.com
-D: aligned load/store support
+D: aligned load/store support, parts of noalias and restrict support
+D: vreg subreg infrastructure, X86 codegen improvements based on subregs
 
 N: Jim Laskey
 E: jlaskey@apple.com