commit aa2fd8850c18861c8e3811b9174b0b1667111783
author aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> Tue Dec 12 02:16:31 2017 +0000
committer aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> Tue Dec 12 02:16:31 2017 +0000
tree 5ebc4974d8a1f07ace0cda3e302d94bfd57725a5
parent 90567983c3c093c60bd99a28266285553e615d43

[SFN] Introduce -gstatement-frontiers option, enable debug markers

Introduce a command line option to enable statement frontiers, enabled
by default in optimized builds with DWARF2+ debug information.

This patch depends on an earlier patch that completed the
infrastructure for debug markers, and on another patch that turns -g
into a negatable option prefix.

for  gcc/ChangeLog

	* common.opt (gstatement-frontiers): New, setting
	debug_nonbind_markers_p.
	* rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): Activate.
	* toplev.c (process_options): Autodetect value for debug statement
	frontiers option.
	* tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): Activate.
	* doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers): New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255569 138bc75d-0d04-0410-961f-82ee72b054a4