[llvm] r260070 - [WebAssembly] Add another optimization idea to README.txt.

[Dan Gohman via llvm-commits]

Author: djg
Date: Sun Feb  7 21:42:36 2016
New Revision: 260070

URL: http://llvm.org/viewvc/llvm-project?rev=260070&view=rev
Log:
[WebAssembly] Add another optimization idea to README.txt.

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

Modified: llvm/trunk/lib/Target/WebAssembly/README.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/README.txt?rev=260070&r1=260069&r2=260070&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/README.txt (original)
+++ llvm/trunk/lib/Target/WebAssembly/README.txt Sun Feb  7 21:42:36 2016
@@ -95,3 +95,8 @@ It could be done with a smaller encoding
     copy_local  $3=, $pop6
 
 //===---------------------------------------------------------------------===//
+
+WebAssembly registers are implicitly initialized to zero. Explicit zeroing is
+therefore often redundant and could be optimized away.
+
+//===---------------------------------------------------------------------===//