[Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87790

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 14:57:52 2018
New Revision: 265593

URL: https://gcc.gnu.org/viewcvs?rev=265593&root=gcc&view=rev
Log:
2018-10-29  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/87790
        * tree-vect-slp.c (vect_mark_slp_stmts): Simplify.
        (vect_make_slp_decision): Adjust.
        (vect_slp_analyze_bb_1): Likewise.
        (vect_detect_hybrid_slp_stmts): Properly union SLP type over
        edges.

        * gcc.dg/pr87790.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr87790.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c