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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/62283] basic-block vectorization fails
Date: Tue, 28 Apr 2015 08:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62283

--- Comment #21 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Apr 28 08:30:44 2015
New Revision: 222514

URL: https://gcc.gnu.org/viewcvs?rev=222514&root=gcc&view=rev
Log:
2015-04-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/62283
        * tree-vect-slp.c (vect_build_slp_tree): When the SLP build
        fails fatally and we are vectorizing a basic-block simply
        cause the child to be constructed piecewise.
        (vect_analyze_slp_cost_1): Adjust.
        (vect_detect_hybrid_slp_stmts): Likewise.
        (vect_bb_slp_scalar_cost): Likewise.
        (vect_get_constant_vectors): For piecewise constructed
        constants place them after the last def.
        (vect_get_slp_defs): Adjust.
        * tree-vect-stmts.c (vect_is_simple_use): Detect in-BB
        externals for basic-block vectorization.

        * gfortran.dg/vect/pr62283-2.f: New testcase.
        * gcc.dg/vect/bb-slp-14.c: Adjust.

Added:
    trunk/gcc/testsuite/gfortran.dg/vect/pr62283-2.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/vect/bb-slp-14.c
    trunk/gcc/tree-vect-slp.c
    trunk/gcc/tree-vect-stmts.c