invoke.texi (Debugging Options): Add documentation for the -femit-struct-debug options...

./:	* doc/invoke.texi (Debugging Options): Add documentation for the
	-femit-struct-debug options -femit-struct-debug-baseonly,
	-femit-struct-debug-reduced, and
	-femit-struct-debug-detailed[=...].

	* c-opts.c (c_common_handle_option): Add
	OPT_femit_struct_debug_baseonly, OPT_femit_struct_debug_reduced,
	and OPT_femit_struct_debug_detailed_.
	* c.opt: Add specifications for
	-femit-struct-debug-baseonly, -femit-struct-debug-reduced,
	and -femit-struct-debug-detailed[=...].
	* opts.c (set_struct_debug_option): Parse the
	-femit-struct-debug-... options.
	* opts.c (matches_main_base, main_input_basename,
	main_input_baselength, base_of_path, matches_main_base): Add
	variables and functions to compare header base name to compilation
	unit base name.
	* opts.c (should_emit_struct_debug): Add to determine to emit a
	structure based on the option.
	(dump_struct_debug) Also disabled function to debug this
	function.
	* opts.c (handle_options): Save the base name of the
	compilation unit.

	* langhooks-def.h (LANG_HOOKS_GENERIC_TYPE_P): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add.
	This hook indicates if a type is generic.  Set it by default
	to "never generic".
	* langhooks.h (struct lang_hooks_for_types): Add a new hook
	to determine if a struct type is generic or not.
	* cp/cp-tree.h (class_tmpl_impl_spec_p): Declare a C++ hook.
	* cp/tree.c (class_tmpl_impl_spec_p): Implement the C++ hook.
	* cp/cp-lang.c (LANG_HOOKS_GENERIC_TYPE_P): Override null C hook
	with live C++ hook.

	* flags.h (enum debug_info_usage): Add an enumeration to describe
	a program's use of a structure type.
	* dwarf2out.c (gen_struct_or_union_type_die): Add a new parameter
	to indicate the program's usage of the type.  Filter structs based
	on the -femit-struct-debug-... specification.
	(gen_type_die): Split into two routines, gen_type_die and
	gen_type_die_with_usage.  gen_type_die is now a wrapper
	that assumes direct usage.
	(gen_type_die_with_usage): Replace calls to gen_type_die
	with gen_type_die_with_usage adding the program usage of
	the referenced type.
	(dwarf2out_imported_module_or_decl): Suppress struct debug
	information using should_emit_struct_debug when appropriate.
testsuite/:
	* g++.dg/other/fesd-any.C: Test -femit-struct-debug-detailed=any.
	* g++.dg/other/fesd-any.h: Test -femit-struct-debug-detailed=any.
	* g++.dg/other/fesd-baseonly.C: Test -femit-struct-debug-baseonly.
	* g++.dg/other/fesd-baseonly.h: Test -femit-struct-debug-baseonly.
	* g++.dg/other/fesd-none.C: Test -femit-struct-debug-detailed=none.
	* g++.dg/other/fesd-none.h: Test -femit-struct-debug-detailed=none.
	* g++.dg/other/fesd-reduced.C: Test -femit-struct-debug-reduced.
	* g++.dg/other/fesd-reduced.h: Test -femit-struct-debug-reduced.
	* g++.dg/other/fesd-sys.C: Test -femit-struct-debug-detailed=sys.
	* g++.dg/other/fesd-sys.h: Test -femit-struct-debug-detailed=sys.
	* g++.dg/other/fesd.h: Common to -femit-struct-debug-... tests.

	* gcc.dg/fesd-any.c: Test -femit-struct-debug-detailed=any.
	* gcc.dg/fesd-any.h: Test -femit-struct-debug-detailed=any.
	* gcc.dg/fesd-baseonly.c: Test -femit-struct-debug-baseonly.
	* gcc.dg/fesd-baseonly.h: Test -femit-struct-debug-baseonly.
	* gcc.dg/fesd-none.c: Test -femit-struct-debug-detailed=none.
	* gcc.dg/fesd-none.h: Test -femit-struct-debug-detailed=none.
	* gcc.dg/fesd-reduced.c: Test -femit-struct-debug-reduced.
	* gcc.dg/fesd-reduced.h: Test -femit-struct-debug-reduced.
	* gcc.dg/fesd-sys.c: Test -femit-struct-debug-detailed=sys.
	* gcc.dg/fesd-sys.h: Test -femit-struct-debug-detailed=sys.
	* gcc.dg/fesd.h: Common to -femit-struct-debug-... tests.

From-SVN: r123909

1 files changed, 84 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/fesd-none.c b/gcc/testsuite/gcc.dg/fesd-none.c
new file mode 100644
index 0000000..bd218f8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fesd-none.c
@@ -0,0 +1,84 @@
+// { dg-do compile }
+// { dg-options "-gdwarf-2 -dA -femit-struct-debug-detailed=none" }
+// { dg-final { scan-assembler "timespec.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "tv_sec.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "tv_nsec.*DW_AT_name" } }
+// { dg-final { scan-assembler "itimerspec.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "it_interval.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "it_value.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_ref_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_ref_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_ptr_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_ptr_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_fld_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_fld_head.*DW_AT_name" } }
+// { dg-final { scan-assembler "gstruct_head_ordy_defn_var_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_var_head_inc.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_var_head_ref.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_var_head_ptr.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_var_head_fld.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_decl_ref_head.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_ref_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_ref_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_ptr_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_ptr_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_defn_fld_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_fld_base.*DW_AT_name" } }
+// { dg-final { scan-assembler "gstruct_head_ordy_defn_var_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_head_ordy_defn_var_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_base_ordy_defn_ref_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_base_ordy_defn_ref_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_base_ordy_defn_ptr_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_base_ordy_defn_ptr_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_base_ordy_defn_fld_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field_base_ordy_defn_fld_base.*DW_AT_name" } }
+// { dg-final { scan-assembler "gstruct_base_ordy_defn_var_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field1_base_ordy_defn_var_base_inc.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field1_base_ordy_defn_var_base_ref.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field1_base_ordy_defn_var_base_ptr.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field1_base_ordy_defn_var_base_fld.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field2_base_ordy_defn_var_base_inc.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field2_base_ordy_defn_var_base_ref.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field2_base_ordy_defn_var_base_ptr.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "field2_base_ordy_defn_var_base_fld.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_head_ordy_decl_ref_base.*DW_AT_name" } }
+// { dg-final { scan-assembler-not "gstruct_base_ordy_decl_ref_base.*DW_AT_name" } }
+# 1 "fesd-none.c"
+# 1 "<built-in>"
+# 1 "<command-line>"
+# 1 "fesd-none.c"
+
+//#include "time.h"
+# 1 "time.h" 1 3 4
+struct timespec
+  {
+    long int tv_sec;
+    long int tv_nsec;
+  };
+
+struct itimerspec
+  {
+    struct timespec it_interval;
+    struct timespec it_value;
+  };
+
+# 6 "fesd-none.c" 2
+
+struct timespec base_var8;
+struct itimerspec *base_var9;
+
+#include "fesd-none.h"
+
+struct gstruct_head_ordy_defn_var_base base_var1;
+struct gstruct_base_ordy_defn_var_base base_var2;
+
+int base_function() {
+    return 0
++ base_var1.field_head_ordy_defn_var_base
++ base_var2.field1_base_ordy_defn_var_base_ptr->field_head_ordy_defn_ptr_base
++ base_var2.field1_base_ordy_defn_var_base_fld.field_head_ordy_defn_fld_base
++ base_var2.field2_base_ordy_defn_var_base_ptr->field_base_ordy_defn_ptr_base
++ base_var2.field2_base_ordy_defn_var_base_fld.field_base_ordy_defn_fld_base
+;
+}
+