[Bug middle-end/56309] -O3 optimizer generates conditional moves instead of compare and branch resulting in almost 2x slower code

[arturomdn at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56309



--- Comment #1 from arturomdn at gmail dot com 2013-02-13 20:22:51 UTC ---

Created attachment 29443

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29443

Self contained source file with parameter x passed by reference (fast)



This source file differs from by-val-O3.ii only in the way parameter "x" is

passed.