http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54776
--- Comment #4 from Markus Trippelsdorf <markus at trippelsdorf dot de>
2012-10-04 15:57:19 UTC ---
> I will take a look how LTO can help us. I believe part of the problem should
> be fixed by dropping the COMDAT hack for V1 API that is on my TODO list for
> this week.
The reported numbers above were taken with the COMDAT hack
dropped already. I always use this patch:
diff --git a/gcc/lto-streamer-out.c b/gcc/lto-streamer-out.c
index afe4951..71b9d57 100644
--- a/gcc/lto-streamer-out.c
+++ b/gcc/lto-streamer-out.c
@@ -1308,7 +1308,7 @@ produce_symtab (struct output_block *ob)
if (DECL_EXTERNAL (node->symbol.decl))
continue;
if (DECL_COMDAT (node->symbol.decl)
- && cgraph_comdat_can_be_unshared_p (node))
+ && cgraph_comdat_can_be_unshared_p (node) && 0)
continue;
if ((node->alias && !node->thunk.alias) || node->global.inlined_to)
continue;
@@ -1327,7 +1327,7 @@ produce_symtab (struct output_block *ob)
if (!node->symbol.address_taken && !node->callers)
continue;
if (DECL_COMDAT (node->symbol.decl)
- && cgraph_comdat_can_be_unshared_p (node))
+ && cgraph_comdat_can_be_unshared_p (node) && 0)
continue;
if ((node->alias && !node->thunk.alias) || node->global.inlined_to)
continue;
@@ -1348,7 +1348,7 @@ produce_symtab (struct output_block *ob)
if (DECL_COMDAT (vnode->symbol.decl)
&& !vnode->symbol.force_output
&& vnode->finalized
- && DECL_VIRTUAL_P (vnode->symbol.decl))
+ && DECL_VIRTUAL_P (vnode->symbol.decl) && 0)
continue;
if (vnode->alias && !vnode->alias_of)
continue;
@@ -1364,7 +1364,7 @@ produce_symtab (struct output_block *ob)
if (DECL_COMDAT (vnode->symbol.decl)
&& !vnode->symbol.force_output
&& vnode->finalized
- && DECL_VIRTUAL_P (vnode->symbol.decl))
+ && DECL_VIRTUAL_P (vnode->symbol.decl) && 0)
continue;
if (vnode->alias && !vnode->alias_of)
continue;
