[Bug tree-optimization/81723] [7 Regression] fortran build doesn't terminate on 64bit targets

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81723

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Aug  8 12:49:39 2017
New Revision: 250953

URL: https://gcc.gnu.org/viewcvs?rev=250953&root=gcc&view=rev
Log:
2017-08-08  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/81723
        * tree-vect-slp.c (struct bst_traits): New hash traits.
        (bst_fail): New global.
        (vect_build_slp_tree_2): New worker, split out from ...
        (vect_build_slp_tree): ... this now wrapping it with using
        bst_fail set to cache SLP tree build fails.  Properly handle
        max_tree_size.
        (vect_analyze_slp_instance): Allocate and free bst_fail.

        * gfortran.dg/pr81723.f: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr81723.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c