[Bug tree-optimization/79803] [5/6 Regression] ICE in tree_ssa_prefetch_arrays, at tree-ssa-loop-prefetch.c:1982

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79803

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Mar 22 10:42:33 2017
New Revision: 246350

URL: https://gcc.gnu.org/viewcvs?rev=246350&root=gcc&view=rev
Log:
Backport r245869

2017-03-22  Martin Liska  <mliska@suse.cz>

        Backport from mainline
        2017-03-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79803
        * tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Remove
        assert.
        (pass_loop_prefetch::execute): Disabled optimization if an
        assumption about L1 cache size is not met.
2017-03-22  Martin Liska  <mliska@suse.cz>

        Backport from mainline
        2017-03-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79803
        * gcc.dg/tree-ssa/pr79803.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/pr79803.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/testsuite/ChangeLog
    branches/gcc-6-branch/gcc/tree-ssa-loop-prefetch.c