[Bug tree-optimization/69467] [6 Regression] Pattern X * C1 CMP 0 to X CMP 0 causes performance drop on 32-bit x86.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69467

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jan 26 12:05:22 2016
New Revision: 232821

URL: https://gcc.gnu.org/viewcvs?rev=232821&root=gcc&view=rev
Log:
2016-01-26  Richard Biener  <rguenther@suse.de>

        PR middle-end/69467
        * match.pd: Guard X * CST CMP 0 pattern with single_use.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd