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| author | Alexandre Oliva <aoliva@redhat.com> | 2017-12-12 02:16:31 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2017-12-12 02:16:31 +0000 |
| commit | 8697bf9f46f36168ddba5752db582e673e3cbe8c (patch) | |
| tree | 5ebc4974d8a1f07ace0cda3e302d94bfd57725a5 /gcc/toplev.c | |
| parent | 96a95ac18c2fe573d9c5039be18cf7c6cb26f171 (diff) | |
| download | gcc-8697bf9f46f36168ddba5752db582e673e3cbe8c.zip gcc-8697bf9f46f36168ddba5752db582e673e3cbe8c.tar.gz gcc-8697bf9f46f36168ddba5752db582e673e3cbe8c.tar.bz2 | |
[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.
From-SVN: r255569
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 2f15496..b6e038d 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -1536,6 +1536,10 @@ process_options (void) warning_at (UNKNOWN_LOCATION, 0, "var-tracking-assignments changes selective scheduling"); + if (debug_nonbind_markers_p == AUTODETECT_VALUE) + debug_nonbind_markers_p = optimize && debug_info_level >= DINFO_LEVEL_NORMAL + && (write_symbols == DWARF2_DEBUG || write_symbols == VMS_AND_DWARF2_DEBUG); + if (flag_tree_cselim == AUTODETECT_VALUE) { if (HAVE_conditional_move) |