[llvm-commits] [llvm] r139263 - /llvm/trunk/lib/Target/README.txt

[Benjamin Kramer]

Author: d0k
Date: Wed Sep  7 17:49:26 2011
New Revision: 139263

URL: http://llvm.org/viewvc/llvm-project?rev=139263&view=rev
Log:
Add two notes for correlated-expression optimizations.

Modified:
    llvm/trunk/lib/Target/README.txt

Modified: llvm/trunk/lib/Target/README.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/README.txt?rev=139263&r1=139262&r2=139263&view=diff
==============================================================================
--- llvm/trunk/lib/Target/README.txt (original)
+++ llvm/trunk/lib/Target/README.txt Wed Sep  7 17:49:26 2011
@@ -2348,3 +2348,13 @@
 probably best to do this in the code generator.
 
 //===---------------------------------------------------------------------===//
+
+unsigned foo(unsigned x, unsigned y) { return (x & y) == 0 || x == 0; }
+should fold to (x & y) == 0.
+
+//===---------------------------------------------------------------------===//
+
+unsigned foo(unsigned x, unsigned y) { return x > y && x != 0; }
+should fold to x > y.
+
+//===---------------------------------------------------------------------===//