common.opt (fstrict-overflow): Alias negative to fwrapv.

common.opt (fstrict-overflow): Alias negative to fwrapv.

2017-05-02  Richard Biener  <rguenther@suse.de>

	* common.opt (fstrict-overflow): Alias negative to fwrapv.
	* doc/invoke.texi (fstrict-overflow): Remove all traces of
	-fstrict-overflow documentation.
	* tree.h (TYPE_OVERFLOW_UNDEFINED): Do not test flag_strict_overflow.
	(POINTER_TYPE_OVERFLOW_UNDEFINED): Test !flag_wrapv instead of
	flag_strict_overflow.
	* ipa-inline.c (can_inline_edge_p): Do not test flag_strict_overflow.
	* lto-opts.c (lto_write_options): Do not stream it.
	* lto-wrapper.c (merge_and_complain): Do not handle it.
	* opts.c (default_options_table): Do not set -fstrict-overflow.
	(finish_options): Likewise do not clear it when sanitizing.
	* simplify-rtx.c (simplify_const_relational_operation): Do not
	test flag_strict_overflow.

	ada/
	* gcc-interface/misc.c (gnat_post_options): Do not set
	-fstrict-overflow.

	* c-c++-common/Wlogical-op-1.c: Add -fwrapv to restore previous
	behavior.
	* gcc.target/i386/pr46253.c: Make i unsigned to avoid warning.

From-SVN: r247495