[Bug tree-optimization/56878] Issue with candidate choice in vect_gen_niters_for_prolog_loop.

2013-04-11 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56878 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|

[Bug tree-optimization/56878] Issue with candidate choice in vect_gen_niters_for_prolog_loop.

2013-04-10 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56878 --- Comment #4 from Richard Biener 2013-04-10 15:05:44 UTC --- Like with the simple Index: gcc/tree-vect-data-refs.c === --- gcc/tree-vect-data-refs.c (revision 196872)

[Bug tree-optimization/56878] Issue with candidate choice in vect_gen_niters_for_prolog_loop.

2013-04-10 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56878 --- Comment #3 from Richard Biener 2013-04-10 14:58:00 UTC --- Hmm, it seems to be a rather unfortunate choice of aligning x vs. v1 which seems to only depend on the order in which the data-refs appear in the data-ref array. That is, vect

[Bug tree-optimization/56878] Issue with candidate choice in vect_gen_niters_for_prolog_loop.

2013-04-09 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56878 Richard Biener changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug tree-optimization/56878] Issue with candidate choice in vect_gen_niters_for_prolog_loop.

2013-04-08 Thread ysrumyan at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56878 --- Comment #1 from Yuri Rumyantsev 2013-04-08 15:47:05 UTC --- Created attachment 29826 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29826 testcase Need to be compiled on x86 with the following options: -O3 -funroll-loops -ffas