[Bug tree-optimization/65355] [4.8/4.9/5 Regression] vectorizer increase alignment of symbols already placed in anchors

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65355

--- Comment #1 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Mar 10 04:24:21 2015
New Revision: 221297

URL: https://gcc.gnu.org/viewcvs?rev=221297&root=gcc&view=rev
Log:

    PR tree-optimization/65355
    * varasm.c (notice_global_symbol): Do not produce RTL.
    * symtab.c (symtab_node::can_increase_alignment_p): Check for section
    anchor.
    * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Do not
    check for section anchors.
    * gcc.dg/vect/section-anchors-vect-69.c: Update template.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/symtab.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/vect/section-anchors-vect-69.c
    trunk/gcc/tree-vect-data-refs.c
    trunk/gcc/varasm.c