Prefer to use strlen call instead of inline expansion (PR target/88809).

Prefer to use strlen call instead of inline expansion (PR target/88809).

2019-05-02  Martin Liska  <mliska@suse.cz>

	PR target/88809
	* config/i386/i386.c (ix86_expand_strlen): Use strlen call.
	With -minline-all-stringops use inline expansion using 4B loop.
	* doc/invoke.texi: Document the change of
	-minline-all-stringops.
2019-05-02  Martin Liska  <mliska@suse.cz>

	PR target/88809
	* gcc.target/i386/pr88809.c: New test.
	* gcc.target/i386/pr88809-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@270787 138bc75d-0d04-0410-961f-82ee72b054a4