[Bug tree-optimization/87105] Autovectorization [X86, SSE2, AVX2, DoublePrecision]

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87105

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Oct 24 11:46:58 2018
New Revision: 265457

URL: https://gcc.gnu.org/viewcvs?rev=265457&root=gcc&view=rev
Log:
2018-10-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87105
        * tree-vect-data-refs.c (vect_analyze_group_access_1): Adjust
        dump classification.
        (vect_analyze_data_ref_accesses): Handle duplicate loads and
        stores by splitting the affected group after the fact.
        * tree-vect-slp.c (vect_build_slp_tree_2): Dump when we
        fail the SLP build because of size constraints.

        * gcc.dg/vect/bb-slp-39.c: New testcase.
        * gfortran.dg/vect/pr83232.f90: Un-XFAIL.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/bb-slp-39.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/vect/pr83232.f90
    trunk/gcc/tree-vect-data-refs.c
    trunk/gcc/tree-vect-slp.c