The following patch removes streaming of abstract origins into ltrans
boundaries. This was introduced by rev. 201468 but I can't find the
post of the change on the mailinglist and thus its reasoning. Fact is
we never stream DECL_ABSTRACT_ORIGIN, so doing the abstract origin
handling must have had other side-effects.
LTO bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
Richard.
2015-09-24 Richard Biener <rguent...@suse.de>
PR lto/67699
* lto-cgraph.c (compute_ltrans_boundary): Do not stream
abstract origins.
* g++.dg/pr67699.C: New testcase.
Index: gcc/lto-cgraph.c
===================================================================
--- gcc/lto-cgraph.c (revision 228074)
+++ gcc/lto-cgraph.c (working copy)
@@ -895,14 +895,6 @@ compute_ltrans_boundary (lto_symtab_enco
add_node_to (encoder, node, true);
lto_set_symtab_encoder_in_partition (encoder, node);
create_references (encoder, node);
- /* For proper debug info, we need to ship the origins, too. */
- if (DECL_ABSTRACT_ORIGIN (node->decl))
- {
- struct cgraph_node *origin_node
- = cgraph_node::get_create (DECL_ABSTRACT_ORIGIN (node->decl));
- origin_node->used_as_abstract_origin = true;
- add_node_to (encoder, origin_node, true);
- }
}
for (lsei = lsei_start_variable_in_partition (in_encoder);
!lsei_end_p (lsei); lsei_next_variable_in_partition (&lsei))
@@ -914,13 +906,6 @@ compute_ltrans_boundary (lto_symtab_enco
lto_set_symtab_encoder_in_partition (encoder, vnode);
lto_set_symtab_encoder_encode_initializer (encoder, vnode);
create_references (encoder, vnode);
- /* For proper debug info, we need to ship the origins, too. */
- if (DECL_ABSTRACT_ORIGIN (vnode->decl))
- {
- varpool_node *origin_node
- = varpool_node::get (DECL_ABSTRACT_ORIGIN (vnode->decl));
- lto_set_symtab_encoder_in_partition (encoder, origin_node);
- }
}
/* Pickle in also the initializer of all referenced readonly variables
to help folding. Constant pool variables are not shared, so we must
