r275168 - in /branches/gcc-8-branch/gcc: Change...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Aug 30 13:19:23 2019
New Revision: 275168

URL: https://gcc.gnu.org/viewcvs?rev=275168&root=gcc&view=rev
Log:
2019-08-30  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR middle-end/88567
	* tree-vect-loop.c (get_initial_defs_for_reduction): Pass the
	output vector directly to duplicate_and_interleave instead of
	going through a temporary.  Postpone insertion of ctor_seq to
	the end of the loop.

	2018-12-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/88315
	* tree-vect-loop.c (get_initial_defs_for_reduction): Simplify
	and fix initialization vector for SAD and DOT_PROD SLP reductions.

	* gcc.dg/vect/slp-reduc-sad.c: Adjust to provide non-trivial
	initial value.

Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/slp-reduc-sad.c
    branches/gcc-8-branch/gcc/tree-vect-loop.c