[Bug tree-optimization/90269] loop distribution defeated by clobbers

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90269

--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Fri May  3 13:41:36 2019
New Revision: 270852

URL: https://gcc.gnu.org/viewcvs?rev=270852&root=gcc&view=rev
Log:
Let ldist ignore clobbers

2019-05-03  Marc Glisse  <marc.gli...@inria.fr>

        PR tree-optimization/90269
gcc/
        * tree-loop-distribution.c (find_seed_stmts_for_distribution):
        Ignore clobbers.

gcc/testsuite/
        * g++.dg/tree-ssa/ldist-1.C: New file.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/ldist-1.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-loop-distribution.c