[Bug fortran/92094] ice in vect_transform_stmt at tree-vect-stmts.c:10921

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92094

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Oct 15 10:09:10 2019
New Revision: 276987

URL: https://gcc.gnu.org/viewcvs?rev=276987&root=gcc&view=rev
Log:
2019-10-15  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/92094
        * tree-vect-loop.c (vectorizable_reduction): For nested cycles
        do not adjust the reduction definition def type.
        * tree-vect-stmts.c (vect_transform_stmt): Verify the scalar stmt
        defines the latch argument of the PHI.

        * gfortran.dg/pr92094.f90: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr92094.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vect-stmts.c