Update woefully stale credits entry. Everything listed there had been

re-done by wiser souls.

llvm-svn: 154894

llvm/CREDITS.TXT

@@ -56,7 +56,9 @@ D: Loop unrolling with run-time trip counts.
 
 N: Chandler Carruth
 E: chandlerc@gmail.com
-D: LinkTimeOptimizer for Linux, via binutils integration, and C API
+D: Hashing algorithms and interfaces
+D: Inline cost analysis
+D: Machine block placement pass
 
 N: Casey Carter
 E: ccarter@uiuc.edu