[llvm] r281570 - [LangRef] Add a clarifying example for undef

[Sanjoy Das via llvm-commits]

Author: sanjoy
Date: Wed Sep 14 20:56:58 2016
New Revision: 281570

URL: http://llvm.org/viewvc/llvm-project?rev=281570&view=rev
Log:
[LangRef] Add a clarifying example for undef

Modified:
    llvm/trunk/docs/LangRef.rst

Modified: llvm/trunk/docs/LangRef.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.rst?rev=281570&r1=281569&r2=281570&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.rst (original)
+++ llvm/trunk/docs/LangRef.rst Wed Sep 14 20:56:58 2016
@@ -2834,6 +2834,9 @@ bits. Any output bit can have a zero or
     Safe:
       %A = -1
       %B = 0
+    Safe:
+      %A = %X  ;; By choosing undef as 0
+      %B = %X  ;; By choosing undef as -1
     Unsafe:
       %A = undef
       %B = undef