This is the mail archive of the gcc-bugs@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug rtl-optimization/54524] [4.6/4.7/4.8 Regression] Spurious add on sum of bitshifts (forward-propagate issue)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-11-02 23:32:38 UTC ---
Author: pinskia
Date: Fri Nov  2 23:32:32 2012
New Revision: 193111

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193111
Log:
2012-11-02  Andrew Pinski  <apinski@cavium.com>

        PR rtl-opt/54524
        * simplify-rtx.c (simplify_relational_operation_1): Don't simplify
        (LTU/GEU (PLUS a 0) 0) into (GEU/LTU a 0) since they are not
equivalent.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]