[Bug rtl-optimization/69291] [6 Regression] wrong code at -O1 for ruby-2.3.0/regcomp.c:985:compile_length_quantifier_node()

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69291

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Feb 11 08:11:52 2016
New Revision: 233316

URL: https://gcc.gnu.org/viewcvs?rev=233316&root=gcc&view=rev
Log:
2016-02-11  Richard Biener  <rguent...@suse.de>

        PR rtl-optimization/69291
        * ifcvt.c (noce_try_store_flag_constants): Do not allow
        subexpressions affected by changing the result.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ifcvt.c