common.opt (gas-loc-support, [...]): New.

	* common.opt (gas-loc-support, gas-locview-support): New.
	(ginline-points, ginternal-reset-location-views): New.
	* doc/invoke.texi: Document them.  Use @itemx where intended.
	(gvariable-location-views): Adjust.
	* target.def (reset_location_view): New.
	* doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
	(TARGET_RESET_LOCATION_VIEW): New.
	* doc/tm.texi: Rebuilt.
	* dwarf2out.c (dwarf2out_default_as_loc_support): New.
	(dwarf2out_default_as_locview_support): New.
	(output_asm_line_debug_info): Use option variables.
	(dwarf2out_maybe_output_loclist_view_pair): Likewise.
	(output_loc_list): Likewise.
	(add_high_low_attributes): Check option variables.
	Don't output entry view attribute in strict mode.
	(gen_inlined_subroutine_die): Check option variables.
	(dwarf2out_inline_entry): Likewise.
	(init_sections_and_labels): Likewise.
	(dwarf2out_early_finish): Likewise.
	(maybe_reset_location_view): New, from...
	(dwarf2out_var_location): ... here.  Call it.
	* debug.h (dwarf2out_default_as_loc_support): Declare.
	(dwarf2out_default_as_locview_support): Declare.
	* hooks.c (hook_int_rtx_insn_0): New.
	* hooks.h (hook_int_rtx_insn_0): Declare.
	* toplev.c (process_options): Take -gas-loc-support and
	-gas-locview-support from dwarf2out.  Enable
	-gvariable-location-views by default only with locview
	assembler support.  Enable -ginternal-reset-location-views by
	default only if the target defines the corresponding hook.
	Enable -ginline-points by default if location views are
	enabled; force it disabled if statement frontiers are
	disabled.
	* tree-inline.c (expand_call_inline): Check option variables.
	* tree-ssa-live.c (remove_unused_scope_block_p): Likewise.

From-SVN: r257631

1 files changed, 40 insertions, 5 deletions

diff --git a/gcc/toplev.c b/gcc/toplev.c
index 23db063..b066bcc 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -1558,13 +1558,23 @@ process_options (void)
 	     || write_symbols == VMS_AND_DWARF2_DEBUG)
 	 && !(flag_selective_scheduling || flag_selective_scheduling2));
 
+  if (dwarf2out_as_loc_support == AUTODETECT_VALUE)
+    dwarf2out_as_loc_support
+      = dwarf2out_default_as_loc_support ();
+  if (dwarf2out_as_locview_support == AUTODETECT_VALUE)
+    dwarf2out_as_locview_support
+      = dwarf2out_default_as_locview_support ();
+
   if (debug_variable_location_views == AUTODETECT_VALUE)
     {
-      debug_variable_location_views = flag_var_tracking
-	&& debug_info_level >= DINFO_LEVEL_NORMAL
-	&& (write_symbols == DWARF2_DEBUG
-	    || write_symbols == VMS_AND_DWARF2_DEBUG)
-	&& !dwarf_strict;
+      debug_variable_location_views
+	= (flag_var_tracking
+	   && debug_info_level >= DINFO_LEVEL_NORMAL
+	   && (write_symbols == DWARF2_DEBUG
+	       || write_symbols == VMS_AND_DWARF2_DEBUG)
+	   && !dwarf_strict
+	   && dwarf2out_as_loc_support
+	   && dwarf2out_as_locview_support);
     }
   else if (debug_variable_location_views == -1 && dwarf_version != 5)
     {
@@ -1574,6 +1584,31 @@ process_options (void)
       debug_variable_location_views = 1;
     }
 
+  if (debug_internal_reset_location_views == 2)
+    {
+      debug_internal_reset_location_views
+	= (debug_variable_location_views
+	   && targetm.reset_location_view);
+    }
+  else if (debug_internal_reset_location_views
+	   && !debug_variable_location_views)
+    {
+      warning_at (UNKNOWN_LOCATION, 0,
+		  "-ginternal-reset-location-views is forced disabled "
+		  "without -gvariable-location-views");
+      debug_internal_reset_location_views = 0;
+    }
+
+  if (debug_inline_points == AUTODETECT_VALUE)
+    debug_inline_points = debug_variable_location_views;
+  else if (debug_inline_points && !debug_nonbind_markers_p)
+    {
+      warning_at (UNKNOWN_LOCATION, 0,
+		  "-ginline-points is forced disabled without "
+		  "-gstatement-frontiers");
+      debug_inline_points = 0;
+    }
+
   if (flag_tree_cselim == AUTODETECT_VALUE)
     {
       if (HAVE_conditional_move)