[Bug tree-optimization/92345] [10 Regression] ICE in vec<_stmt_vec_info*, va_heap, vl_embed>::space (vect_get_and_check_slp_defs)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92345

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Nov  4 14:50:11 2019
New Revision: 277782

URL: https://gcc.gnu.org/viewcvs?rev=277782&root=gcc&view=rev
Log:
2019-11-04  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/92345
        * tree-vect-loop.c (vect_is_simple_reduction): Return whether
        we produced a reduction chain.
        (vect_analyze_scalar_cycles_1): Do not add reduction chains to
        LOOP_VINFO_REDUCTIONS.

        * gcc.dg/torture/pr92345.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr92345.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c