Revert "Fix PR c++/44188"

gcc/ChangeLog:
	revert fix for PR c++/44188
	* c-common.c (is_typedef_decl): Revert the moving of  this
	definition ...
	* tree.c (is_typedef_decl): ... here.
	(typdef_variant_p): Revert the moving of this  definition
	here from gcc/cp/tree.c.
	* c-common.h (is_typedef_decl): Revert the moving of this
	declaration ...
	* tree.h (is_typedef_decl): ... here.
	(typedef_variant_p): Revert the moving of this  declaration here
	from gcc/cp/cp-tree.h
	* dwarf2out.c (is_naming_typedef_decl): Revert this new function.
	(gen_tagged_type_die): Revert the splitting out of ...
	(gen_type_die_with_usage): ... this function. Revert the anonymous
	tagged type handling.
	(gen_typedef_die): Revert emitting DW_TAG_typedef  for
	typedefs naming anonymous tagged types.

gcc/cp/ChangeLog:
	Revert fix of PR c++/44188
	* cp-tree.h (typedef_variant_p): Revert moving this declaration to
	gcc/tree.h.
	* tree.c (typedef_variant_p): Revert moving this definition to
	gcc/tree.c.
	* decl.c (grokdeclarator): Revert naming typedef handling.

gcc/testsuite/ChangeLog:
	Revert fix for PR c++/44188
	* g++.dg/debug/dwarf2/typedef3.C: Revert new test.

From-SVN: r159955
This commit is contained in:
Dodji Seketeli 2010-05-28 00:03:19 +00:00 committed by Dodji Seketeli
parent 3fe7b63c52
commit ec4be2f46d
12 changed files with 113 additions and 175 deletions

View File

@ -1,3 +1,24 @@
2010-05-28 Dodji Seketeli <dodji@redhat.com>
revert fix for PR c++/44188
* c-common.c (is_typedef_decl): Revert the moving of this
definition ...
* tree.c (is_typedef_decl): ... here.
(typdef_variant_p): Revert the moving of this definition
here from gcc/cp/tree.c.
* c-common.h (is_typedef_decl): Revert the moving of this
declaration ...
* tree.h (is_typedef_decl): ... here.
(typedef_variant_p): Revert the moving of this declaration here
from gcc/cp/cp-tree.h
* dwarf2out.c (is_naming_typedef_decl): Revert this new function.
(gen_tagged_type_die): Revert the splitting out of ...
(gen_type_die_with_usage): ... this function. Revert the anonymous
tagged type handling.
(gen_typedef_die): Revert emitting DW_TAG_typedef for
typedefs naming anonymous tagged types.
2010-05-28 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000-modes.def (PSImode): Delete.

View File

@ -9387,6 +9387,15 @@ set_underlying_type (tree x)
}
}
/* Returns true if X is a typedef decl. */
bool
is_typedef_decl (tree x)
{
return (x && TREE_CODE (x) == TYPE_DECL
&& DECL_ORIGINAL_TYPE (x) != NULL_TREE);
}
/* Record the types used by the current global variable declaration
being parsed, so that we can decide later to emit their debug info.
Those types are in types_used_by_cur_var_decl, and we are going to

View File

@ -1055,6 +1055,7 @@ extern void warn_for_sign_compare (location_t,
tree result_type,
enum tree_code resultcode);
extern void set_underlying_type (tree x);
extern bool is_typedef_decl (tree x);
extern VEC(tree,gc) *make_tree_vector (void);
extern void release_tree_vector (VEC(tree,gc) *);
extern VEC(tree,gc) *make_tree_vector_single (tree);

View File

@ -1,3 +1,12 @@
2010-05-28 Dodji Seketeli <dodji@redhat.com>
Revert fix of PR c++/44188
* cp-tree.h (typedef_variant_p): Revert moving this declaration to
gcc/tree.h.
* tree.c (typedef_variant_p): Revert moving this definition to
gcc/tree.c.
* decl.c (grokdeclarator): Revert naming typedef handling.
2010-05-27 Joseph Myers <joseph@codesourcery.com>
* call.c: Include diagnostic-core.h instead of diagnostic.h.

View File

@ -5256,6 +5256,7 @@ extern bool type_has_nontrivial_copy_init (const_tree);
extern bool class_tmpl_impl_spec_p (const_tree);
extern int zero_init_p (const_tree);
extern tree strip_typedefs (tree);
extern bool typedef_variant_p (tree);
extern void cp_set_underlying_type (tree);
extern tree copy_binfo (tree, tree, tree,
tree *, int);

View File

@ -9081,12 +9081,10 @@ grokdeclarator (const cp_declarator *declarator,
for (t = TYPE_MAIN_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
{
if (ANON_AGGRNAME_P (TYPE_IDENTIFIER (t)))
/* We do not rename the debug info representing the
anonymous tagged type because the standard says in
[dcl.typedef] that the naming applies only for
linkage purposes. */
/*debug_hooks->set_name (t, decl);*/
TYPE_NAME (t) = decl;
{
debug_hooks->set_name (t, decl);
TYPE_NAME (t) = decl;
}
}
if (TYPE_LANG_SPECIFIC (type))

View File

@ -1055,6 +1055,14 @@ strip_typedefs (tree t)
return cp_build_qualified_type (result, cp_type_quals (t));
}
/* Returns true iff TYPE is a type variant created for a typedef. */
bool
typedef_variant_p (tree type)
{
return is_typedef_decl (TYPE_NAME (type));
}
/* Setup a TYPE_DECL node as a typedef representation.
See comments of set_underlying_type in c-common.c. */

View File

@ -6202,7 +6202,6 @@ static void gen_type_die (tree, dw_die_ref);
static void gen_block_die (tree, dw_die_ref, int);
static void decls_for_scope (tree, dw_die_ref, int);
static int is_redundant_typedef (const_tree);
static bool is_naming_typedef_decl (const_tree);
static inline dw_die_ref get_context_die (tree);
static void gen_namespace_die (tree, dw_die_ref);
static void gen_decl_die (tree, tree, dw_die_ref);
@ -6214,8 +6213,6 @@ static struct dwarf_file_data * lookup_filename (const char *);
static void retry_incomplete_types (void);
static void gen_type_die_for_member (tree, tree, dw_die_ref);
static void gen_generic_params_dies (tree);
static void gen_tagged_type_die (tree, dw_die_ref, enum debug_info_usage);
static void gen_type_die_with_usage (tree, dw_die_ref, enum debug_info_usage);
static void splice_child_die (dw_die_ref, dw_die_ref);
static int file_info_cmp (const void *, const void *);
static dw_loc_list_ref new_loc_list (dw_loc_descr_ref, const char *,
@ -19411,33 +19408,10 @@ gen_typedef_die (tree decl, dw_die_ref context_die)
equate_type_number_to_die (TREE_TYPE (decl), type_die);
}
else
{
/* Here, we are in the case of decl being a typedef naming
an anonymous type, e.g:
typedef struct {...} foo;
In that case TREE_TYPE (decl) is not a typedef variant
type and TYPE_NAME of the anonymous type is set to the
TYPE_DECL of the typedef. This construct is emitted by
the C++ FE. */
type = TREE_TYPE (decl);
/* TYPE is the anonymous struct named by the typedef
DECL. As we need the DW_AT_type attribute of the
DW_TAG_typedef to point to the DIE of TYPE, let's
generate that DIE right away. add_type_attribute
called below will then pick (via lookup_type_die) that
anonymous struct DIE. */
gen_tagged_type_die (type, context_die, DINFO_USAGE_DIR_USE);
}
type = TREE_TYPE (decl);
add_type_attribute (type_die, type, TREE_READONLY (decl),
TREE_THIS_VOLATILE (decl), context_die);
if (is_naming_typedef_decl (decl))
/* We want that all subsequent calls to lookup_type_die with
TYPE in argument yield the DW_TAG_typedef we have just
created. */
equate_type_number_to_die (type, type_die);
}
if (DECL_ABSTRACT (decl))
@ -19447,74 +19421,13 @@ gen_typedef_die (tree decl, dw_die_ref context_die)
add_pubtype (decl, type_die);
}
/* Generate a DIE for a struct, class, enum or union type. */
static void
gen_tagged_type_die (tree type,
dw_die_ref context_die,
enum debug_info_usage usage)
{
int need_pop;
/* If this is a nested type whose containing class hasn't been written
out yet, writing it out will cover this one, too. This does not apply
to instantiations of member class templates; they need to be added to
the containing class as they are generated. FIXME: This hurts the
idea of combining type decls from multiple TUs, since we can't predict
what set of template instantiations we'll get. */
if (TYPE_CONTEXT (type)
&& AGGREGATE_TYPE_P (TYPE_CONTEXT (type))
&& ! TREE_ASM_WRITTEN (TYPE_CONTEXT (type)))
{
gen_type_die_with_usage (TYPE_CONTEXT (type), context_die, usage);
if (TREE_ASM_WRITTEN (type))
return;
/* If that failed, attach ourselves to the stub. */
push_decl_scope (TYPE_CONTEXT (type));
context_die = lookup_type_die (TYPE_CONTEXT (type));
need_pop = 1;
}
else if (TYPE_CONTEXT (type) != NULL_TREE
&& (TREE_CODE (TYPE_CONTEXT (type)) == FUNCTION_DECL))
{
/* If this type is local to a function that hasn't been written
out yet, use a NULL context for now; it will be fixed up in
decls_for_scope. */
context_die = lookup_decl_die (TYPE_CONTEXT (type));
need_pop = 0;
}
else
{
context_die = declare_in_namespace (type, context_die);
need_pop = 0;
}
if (TREE_CODE (type) == ENUMERAL_TYPE)
{
/* This might have been written out by the call to
declare_in_namespace. */
if (!TREE_ASM_WRITTEN (type))
gen_enumeration_type_die (type, context_die);
}
else
gen_struct_or_union_type_die (type, context_die, usage);
if (need_pop)
pop_decl_scope ();
/* Don't set TREE_ASM_WRITTEN on an incomplete struct; we want to fix
it up if it is ever completed. gen_*_type_die will set it for us
when appropriate. */
}
/* Generate a type description DIE. */
static void
gen_type_die_with_usage (tree type, dw_die_ref context_die,
enum debug_info_usage usage)
{
int need_pop;
struct array_descr_info info;
if (type == NULL_TREE || type == error_mark_node)
@ -19522,7 +19435,8 @@ gen_type_die_with_usage (tree type, dw_die_ref context_die,
/* If TYPE is a typedef type variant, let's generate debug info
for the parent typedef which TYPE is a type of. */
if (typedef_variant_p (type))
if (TYPE_NAME (type) && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& DECL_ORIGINAL_TYPE (TYPE_NAME (type)))
{
if (TREE_ASM_WRITTEN (type))
return;
@ -19537,21 +19451,6 @@ gen_type_die_with_usage (tree type, dw_die_ref context_die,
context_die = get_context_die (DECL_CONTEXT (TYPE_NAME (type)));
TREE_ASM_WRITTEN (type) = 1;
gen_decl_die (TYPE_NAME (type), NULL, context_die);
return;
}
/* If type is an anonymous tagged type named by a typedef, let's
generate debug info for the typedef. */
if (is_naming_typedef_decl (TYPE_NAME (type)))
{
/* Use the DIE of the containing namespace as the parent DIE of
the type description DIE we want to generate. */
if (DECL_CONTEXT (TYPE_NAME (type))
&& TREE_CODE (DECL_CONTEXT (TYPE_NAME (type))) == NAMESPACE_DECL)
context_die = get_context_die (DECL_CONTEXT (TYPE_NAME (type)));
gen_decl_die (TYPE_NAME (type), NULL, context_die);
return;
}
@ -19639,7 +19538,57 @@ gen_type_die_with_usage (tree type, dw_die_ref context_die,
case RECORD_TYPE:
case UNION_TYPE:
case QUAL_UNION_TYPE:
gen_tagged_type_die (type, context_die, usage);
/* If this is a nested type whose containing class hasn't been written
out yet, writing it out will cover this one, too. This does not apply
to instantiations of member class templates; they need to be added to
the containing class as they are generated. FIXME: This hurts the
idea of combining type decls from multiple TUs, since we can't predict
what set of template instantiations we'll get. */
if (TYPE_CONTEXT (type)
&& AGGREGATE_TYPE_P (TYPE_CONTEXT (type))
&& ! TREE_ASM_WRITTEN (TYPE_CONTEXT (type)))
{
gen_type_die_with_usage (TYPE_CONTEXT (type), context_die, usage);
if (TREE_ASM_WRITTEN (type))
return;
/* If that failed, attach ourselves to the stub. */
push_decl_scope (TYPE_CONTEXT (type));
context_die = lookup_type_die (TYPE_CONTEXT (type));
need_pop = 1;
}
else if (TYPE_CONTEXT (type) != NULL_TREE
&& (TREE_CODE (TYPE_CONTEXT (type)) == FUNCTION_DECL))
{
/* If this type is local to a function that hasn't been written
out yet, use a NULL context for now; it will be fixed up in
decls_for_scope. */
context_die = lookup_decl_die (TYPE_CONTEXT (type));
need_pop = 0;
}
else
{
context_die = declare_in_namespace (type, context_die);
need_pop = 0;
}
if (TREE_CODE (type) == ENUMERAL_TYPE)
{
/* This might have been written out by the call to
declare_in_namespace. */
if (!TREE_ASM_WRITTEN (type))
gen_enumeration_type_die (type, context_die);
}
else
gen_struct_or_union_type_die (type, context_die, usage);
if (need_pop)
pop_decl_scope ();
/* Don't set TREE_ASM_WRITTEN on an incomplete struct; we want to fix
it up if it is ever completed. gen_*_type_die will set it for us
when appropriate. */
return;
case VOID_TYPE:
@ -19847,31 +19796,6 @@ is_redundant_typedef (const_tree decl)
return 0;
}
/* Return TRUE if TYPE is a typedef that names a type for linkage
purposes. This kind of typedefs is produced by the C++ FE for
constructs like:
typedef struct {...} foo;
In that case, there is no typedef variant type produced for foo.
Rather, the TREE_TYPE of the TYPE_DECL of foo is the anonymous
struct type. */
static bool
is_naming_typedef_decl (const_tree decl)
{
if (decl == NULL_TREE
|| TREE_CODE (decl) != TYPE_DECL
|| !is_tagged_type (TREE_TYPE (decl))
|| is_redundant_typedef (decl))
return FALSE;
return (DECL_ORIGINAL_TYPE (decl) == NULL_TREE
&& TYPE_NAME (TREE_TYPE (decl)) == decl
&& (TYPE_STUB_DECL (TREE_TYPE (decl))
!= TYPE_NAME (TREE_TYPE (decl))));
}
/* Returns the DIE for a context. */
static inline dw_die_ref

View File

@ -1,3 +1,8 @@
2010-05-28 Dodji Seketeli <dodji@redhat.com>
Revert patch for PR c++/44188
* g++.dg/debug/dwarf2/typedef3.C: Revert new test.
2010-05-25 Dodji Seketeli <dodji@redhat.com>
PR c++/44188

View File

@ -1,19 +0,0 @@
// Origin: PR debug/44188
// { dg-options "-g -dA" }
// { dg-do compile }
// { dg-final { scan-assembler-times "\[^\n\r\]*\\(DIE\[^\n\r\]*DW_TAG_typedef\\)" 1 } }
// { dg-final { scan-assembler-times "\[^\n\r\]*\\(DIE\[^\n\r\]*DW_TAG_structure_type\\)" 1 } }
typedef struct
{
int i;
} AAA;
int
main(void)
{
AAA aa;
return 0;
}

View File

@ -10825,21 +10825,4 @@ get_binfo_at_offset (tree binfo, HOST_WIDE_INT offset, tree expected_type)
return binfo;
}
/* Returns true if X is a typedef decl. */
bool
is_typedef_decl (tree x)
{
return (x && TREE_CODE (x) == TYPE_DECL
&& DECL_ORIGINAL_TYPE (x) != NULL_TREE);
}
/* Returns true iff TYPE is a type variant created for a typedef. */
bool
typedef_variant_p (tree type)
{
return is_typedef_decl (TYPE_NAME (type));
}
#include "gt-tree.h"

View File

@ -4820,8 +4820,6 @@ extern tree create_artificial_label (location_t);
extern const char *get_name (tree);
extern bool stdarg_p (tree);
extern bool prototype_p (tree);
extern bool is_typedef_decl (tree x);
extern bool typedef_variant_p (tree);
extern bool auto_var_in_fn_p (const_tree, const_tree);
extern tree build_low_bits_mask (tree, unsigned);
extern tree tree_strip_nop_conversions (tree);