[Bug tree-optimization/81633] [7/8 Regression] Incorrect floating point result with tree vectoriser

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81633

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Aug  2 06:38:36 2017
New Revision: 250811

URL: https://gcc.gnu.org/viewcvs?rev=250811&root=gcc&view=rev
Log:
2017-08-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81633
        Revert
        2015-08-17  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71752
        * tree-vect-slp.c (vect_get_slp_defs): Handle null operands.

        * gcc.dg/vect/pr81633.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr81633.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c