[Bug tree-optimization/92069] [10 Regression] ice in vect_analyze_scalar_cycles_1, at tree-vect-loop.c:560

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92069

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 14 11:47:15 2019
New Revision: 276959

URL: https://gcc.gnu.org/viewcvs?rev=276959&root=gcc&view=rev
Log:
2019-10-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92069
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): For nested
        cycles do not set vect_nested_cycle on the latch definition.

        * gcc.dg/torture/pr92069.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr92069.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c