git.ipfire.org Git - thirdparty/gcc.git/commit

author	Richard Biener <rguenther@suse.de>
	Wed, 23 Oct 2019 12:41:49 +0000 (12:41 +0000)
committer	Richard Biener <rguenth@gcc.gnu.org>
	Wed, 23 Oct 2019 12:41:49 +0000 (12:41 +0000)
commit	82e8e335f917b9ce40801838c06f7945cf88da43
tree	eed4184c1fa462a64d4a722463477af5dab26a10	tree
parent	d9eabacb0483ac1f730112d551551c258365f02e	commit \| diff

re PR tree-optimization/65930 (Reduction with sign-change not handled)

2019-10-23 Richard Biener <rguenther@suse.de>

PR tree-optimization/65930
* tree-vect-loop.c (check_reduction_path): Allow conversions
that only change the sign.
(vectorizable_reduction): Relax latch def stmts we handle further.

* gcc.dg/vect/vect-reduc-2char-big-array.c: Adjust.
* gcc.dg/vect/vect-reduc-2char.c: Likewise.
* gcc.dg/vect/vect-reduc-2short.c: Likewise.
* gcc.dg/vect/vect-reduc-dot-s8b.c: Likewise.
* gcc.dg/vect/vect-reduc-pattern-2c.c: Likewise.

From-SVN: r277322

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/vect/vect-reduc-2char-big-array.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/vect/vect-reduc-2char.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/vect/vect-reduc-2short.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8b.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c		diff \| blob \| blame \| history
gcc/tree-vect-loop.c		diff \| blob \| blame \| history