[Bug tree-optimization/57236] Missed optimization: weird pointer update after the loop

[petschy at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57236

--- Comment #4 from petschy at gmail dot com ---
Created attachment 30092
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30092&action=edit
clang 3.4 generated code of write2()