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[PR c++/90613] Fix using-decl debug bloat

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https://gcc.gnu.org/ml/gcc-patches/2019-08/msg01888.html
	cp/
	PR c++/90613
	* name-lookup.c (cp_emit_debug_info): Check for builtins during
	overload iteration.

	testsuite/
	PR c++/90613
	* g++.dg/lookup/using61.C: New.

From-SVN: r274991
This commit is contained in:
Nathan Sidwell 2019-08-28 13:36:54 +00:00
parent 629c4e52e4
commit a09b09ccee
4 changed files with 36 additions and 16 deletions
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6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2019-08-28 Nathan Sidwell <nathan@acm.org>
PR c++/90613
* name-lookup.c (cp_emit_debug_info): Check for builtins during
overload iteration.
2019-08-27 Marek Polacek <polacek@redhat.com>
PR c++/81676 - bogus -Wunused warnings in constexpr if.

33
gcc/cp/name-lookup.c
View File

@ -7455,13 +7455,6 @@ cp_emit_debug_info_for_using (tree t, tree context)
if (seen_error ())
return;
/* Ignore this FUNCTION_DECL if it refers to a builtin declaration
of a builtin function. */
if (TREE_CODE (t) == FUNCTION_DECL
&& DECL_EXTERNAL (t)
&& fndecl_built_in_p (t))
return;
/* Do not supply context to imported_module_or_decl, if
it is a global namespace. */
if (context == global_namespace)
@ -7469,18 +7462,26 @@ cp_emit_debug_info_for_using (tree t, tree context)
t = MAYBE_BASELINK_FUNCTIONS (t);
/* FIXME: Handle TEMPLATE_DECLs. */
for (lkp_iterator iter (t); iter; ++iter)
{
tree fn = *iter;
if (TREE_CODE (fn) != TEMPLATE_DECL)
{
if (building_stmt_list_p ())
add_stmt (build_stmt (input_location, USING_STMT, fn));
else
debug_hooks->imported_module_or_decl (fn, NULL_TREE, context,
false, false);
}
if (TREE_CODE (fn) == TEMPLATE_DECL)
/* FIXME: Handle TEMPLATE_DECLs. */
continue;
/* Ignore this FUNCTION_DECL if it refers to a builtin declaration
of a builtin function. */
if (TREE_CODE (fn) == FUNCTION_DECL
&& DECL_EXTERNAL (fn)
&& fndecl_built_in_p (fn))
continue;
if (building_stmt_list_p ())
add_stmt (build_stmt (input_location, USING_STMT, fn));
else
debug_hooks->imported_module_or_decl (fn, NULL_TREE, context,
false, false);
}
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2019-08-16 Martin Liska <mliska@suse.cz>
PR c++/90613
* g++.dg/lookup/using61.C: New.
2019-08-28 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR middle-end/89544

8
gcc/testsuite/g++.dg/lookup/using61.C Normal file
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@ -0,0 +1,8 @@
// { dg-options "-gdwarf-2" }
/* { dg-skip-if "No Dwarf" { { *-*-aix* hppa*-*-hpux* } && { ! hppa*64*-*-* } } } */
extern "C" long double nanl(const char *);
using ::nanl;
// We should elide the using for this extern C builtin
// { dg-final { scan-assembler-not ".debug_info" } }