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

2012-11-02 Thread pinskia at gcc dot gnu.org
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=gccview=revrev=193111 Log: 2012-11-02

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

2012-09-22 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524 --- Comment #6 from Andrew Pinski pinskia at gcc dot gnu.org 2012-09-22 22:26:37 UTC --- I think this code: /* (LTU/GEU (PLUS a C) C), where C is constant, can be simplified to (GEU/LTU a -C). Likewise for (LTU/GEU (PLUS a C) a).

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

2012-09-19 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524 --- Comment #5 from Richard Guenther rguenth at gcc dot gnu.org 2012-09-19 08:46:37 UTC --- Still non-canonical RTL should not result in wrong-code.

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

2012-09-18 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |4.6.4

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

2012-09-18 Thread jan.sm...@alcatel-lucent.com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524 --- Comment #3 from Jan Smets jan.sm...@alcatel-lucent.com 2012-09-18 21:49:21 UTC --- This commit introduced the bug: http://gcc.gnu.org/viewcvs?view=revisionrevision=161655 (or 182cf5a9a415f31df0f9a10e46faed1221484a35 in git)

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

2012-09-18 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524 Andrew Pinski pinskia at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last