The following does $subject which likely fixes some debuginfo issues
with anonymous namespaces (but likely artificial and not too
noticable?! we'd get bogus contexts for DIEs)
Bootstrapped and tested on x86_64-unknown-linux-gnu.
I'm doin a LTO bootstrap right now (but IIRC it failed a few days ago)
Richard.
2019-10-09 Richard Biener <rguent...@suse.de>
lto/
* lto-common.c (unify_scc): Do not merge anonymous NAMESPACE_DECLs.
diff --git a/gcc/lto/lto-common.c b/gcc/lto/lto-common.c
index 9a17933d094..e5c15f2b844 100644
--- a/gcc/lto/lto-common.c
+++ b/gcc/lto/lto-common.c
@@ -1646,11 +1646,13 @@ unify_scc (class data_in *data_in, unsigned from,
tree t = streamer_tree_cache_get_tree (cache, from + i);
scc->entries[i] = t;
/* Do not merge SCCs with local entities inside them. Also do
- not merge TRANSLATION_UNIT_DECLs and anonymous namespace types. */
+ not merge TRANSLATION_UNIT_DECLs and anonymous namespaces
+ and types therein types. */
if (TREE_CODE (t) == TRANSLATION_UNIT_DECL
|| (VAR_OR_FUNCTION_DECL_P (t)
&& !(TREE_PUBLIC (t) || DECL_EXTERNAL (t)))
|| TREE_CODE (t) == LABEL_DECL
+ || (TREE_CODE (t) == NAMESPACE_DECL && !DECL_NAME (t))
|| (TYPE_P (t)
&& type_with_linkage_p (TYPE_MAIN_VARIANT (t))
&& type_in_anonymous_namespace_p (TYPE_MAIN_VARIANT (t))))
