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re PR debug/58315 (Excessive memory use with -g)

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PR debug/58315
	* decl.c (start_preparsed_function): Use create_artificial_label
	for cdtor_label.

From-SVN: r220974
This commit is contained in:
Jason Merrill 2015-02-25 10:49:34 -05:00 • committed by Jason Merrill
parent f66172c410
commit 9b276dada8
3 changed files with 26 additions and 3 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2015-02-25 Jason Merrill <jason@redhat.com>
PR debug/58315
* decl.c (start_preparsed_function): Use create_artificial_label
for cdtor_label.
2015-02-17 Paolo Carlini <paolo.carlini@oracle.com>
Jakub Jelinek <jakub@redhat.com>

4
gcc/cp/decl.c
View file

@ -13721,9 +13721,7 @@ start_preparsed_function (tree decl1, tree attrs, int flags)
|| (DECL_CONSTRUCTOR_P (decl1)
&& targetm.cxx.cdtor_returns_this ()))
{
cdtor_label = build_decl (input_location,
LABEL_DECL, NULL_TREE, void_type_node);
DECL_CONTEXT (cdtor_label) = current_function_decl;
cdtor_label = create_artificial_label (input_location);
}
start_fname_decls ();

19
gcc/testsuite/g++.dg/tree-ssa/deleted-label1.C Normal file
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@ -0,0 +1,19 @@
// PR debug/58315
// { dg-options "-O -g -fdump-tree-einline" }
// { dg-final { scan-tree-dump-not "DEBUG <L0>" "einline" } }
// { dg-final { cleanup-tree-dump "einline" } }
// We used to emit useless NOTE_INSN_DELETED_DEBUG_LABELs for the
// artificial cdtor_label.
struct A
{
~A() {}
};
struct B: A {};
int main()
{
A a;
}