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| author | Jan Hubicka <hubicka@gcc.gnu.org> | 2010-11-20 21:10:46 +0000 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2010-11-20 21:10:46 +0000 |
| commit | 430c6cebe1f5acbbc209c12717cfe085c759f73e (patch) | |
| tree | 840116a4decf1497419fc4f57051a92015fa008f /gcc/lto-streamer-out.c | |
| parent | 671769c38a2a4e4f76817307be3eb871f1acc399 (diff) | |
| download | gcc-430c6cebe1f5acbbc209c12717cfe085c759f73e.zip gcc-430c6cebe1f5acbbc209c12717cfe085c759f73e.tar.gz gcc-430c6cebe1f5acbbc209c12717cfe085c759f73e.tar.bz2 | |
cgraph.c (ld_plugin_symbol_resolution_names): New.
* cgraph.c (ld_plugin_symbol_resolution_names): New.
(dump_cgraph_node): Dump resolution.
* cgraph.h (ld_plugin_symbol_resolution_names): Declare.
(cgraph_comdat_can_be_unshared_p): Dclare.
* lto-streamer-out.c (produce_symtab): Use
cgraph_comdat_can_be_unshared_p.
* ipa.c (cgraph_address_taken_from_non_vtable_p): New function.
(cgraph_comdat_can_be_unshared_p): New function based on logic
in cgraph_externally_visible_p.
(cgraph_externally_visible_p): Use it.
(varpool_externally_visible_p): Virtual tables can be unshared.
* varpool.c (dump_varpool_node): Dump resolution.
From-SVN: r166985
Diffstat (limited to 'gcc/lto-streamer-out.c')
| -rw-r--r-- | gcc/lto-streamer-out.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/gcc/lto-streamer-out.c b/gcc/lto-streamer-out.c index 20e3991..b6414b6 100644 --- a/gcc/lto-streamer-out.c +++ b/gcc/lto-streamer-out.c @@ -2492,7 +2492,7 @@ produce_symtab (struct output_block *ob, if (DECL_EXTERNAL (node->decl)) continue; if (DECL_COMDAT (node->decl) - && cgraph_can_remove_if_no_direct_calls_p (node)) + && cgraph_comdat_can_be_unshared_p (node)) continue; if (node->alias || node->global.inlined_to) continue; @@ -2506,7 +2506,7 @@ produce_symtab (struct output_block *ob, if (!DECL_EXTERNAL (node->decl)) continue; if (DECL_COMDAT (node->decl) - && cgraph_can_remove_if_no_direct_calls_p (node)) + && cgraph_comdat_can_be_unshared_p (node)) continue; if (node->alias || node->global.inlined_to) continue; @@ -2521,6 +2521,14 @@ produce_symtab (struct output_block *ob, vnode = lto_varpool_encoder_deref (varpool_encoder, i); if (DECL_EXTERNAL (vnode->decl)) continue; + /* COMDAT virtual tables can be unshared. Do not declare them + in the LTO symbol table to prevent linker from forcing them + into the output. */ + if (DECL_COMDAT (vnode->decl) + && !vnode->force_output + && vnode->finalized + && DECL_VIRTUAL_P (vnode->decl)) + continue; if (vnode->alias) continue; write_symbol (cache, &stream, vnode->decl, seen, false); @@ -2532,6 +2540,11 @@ produce_symtab (struct output_block *ob, vnode = lto_varpool_encoder_deref (varpool_encoder, i); if (!DECL_EXTERNAL (vnode->decl)) continue; + if (DECL_COMDAT (vnode->decl) + && !vnode->force_output + && vnode->finalized + && DECL_VIRTUAL_P (vnode->decl)) + continue; if (vnode->alias) continue; write_symbol (cache, &stream, vnode->decl, seen, false); |