r250953 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.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  <rguenther@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