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| author | Jan Hubicka <jh@suse.cz> | 2011-06-18 10:31:03 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2011-06-18 08:31:03 +0000 |
| commit | cd35bcf7e8fa8fb1f11e8a45fd1012ca6461e278 (patch) | |
| tree | d841d5d2b4ed36e1175fc28ca05d5529968c1c38 /gcc/cgraphunit.c | |
| parent | d3ff9ee4686ea27a0df76224c790c67284889f57 (diff) | |
| download | gcc-cd35bcf7e8fa8fb1f11e8a45fd1012ca6461e278.zip gcc-cd35bcf7e8fa8fb1f11e8a45fd1012ca6461e278.tar.gz gcc-cd35bcf7e8fa8fb1f11e8a45fd1012ca6461e278.tar.bz2 | |
lto-symtab.c (lto_varpool_replace_node): Remove code handling extra name aliases.
* lto-symtab.c (lto_varpool_replace_node): Remove code handling
extra name aliases.
(lto_symtab_resolve_can_prevail_p): Likewise.
(lto_symtab_merge_cgraph_nodes): Update alias_of pointers.
* cgraphbuild.c (record_reference): Remove extra body alias code.
(mark_load): Likewise.
(mark_store): Likewise.
* cgraph.h (varpool_node): Remove extra_name filed;
add alias_of and extraname_alias.
(varpool_create_variable_alias, varpool_for_node_and_aliases): Declare.
(varpool_alias_aliased_node): New inline function.
(varpool_variable_node): New function.
* cgraphunit.c (handle_alias_pairs): Handle also variable aliases.
* ipa-ref.c (ipa_record_reference): Allow aliases on variables.
* lto-cgraph.c (lto_output_varpool_node): Update streaming.
(input_varpool_node): Likewise.
* lto-streamer-out.c (produce_symtab): Remove extra name aliases.
(varpool_externally_visible_p): Remove extra body alias code.
(function_and_variable_visibility): Likewise.
* tree-ssa-structalias.c (associate_varinfo_to_alias_1): New function.
(ipa_pta_execute): Use it.
* varpool.c (varpool_remove_node): Remove extra name alias code.
(varpool_mark_needed_node): Likewise.
(varpool_analyze_pending_decls): Analyze aliases.
(assemble_aliases): New functoin.
(varpool_assemble_decl): Use it.
(varpool_create_variable_alias): New function.
(varpool_extra_name_alias): Rewrite.
(varpool_for_node_and_aliases): New function.
From-SVN: r175167
Diffstat (limited to 'gcc/cgraphunit.c')
| -rw-r--r-- | gcc/cgraphunit.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index 88d0fac..6683d2a 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -1186,6 +1186,7 @@ handle_alias_pairs (void) unsigned i; struct cgraph_node *target_node; struct cgraph_node *src_node; + struct varpool_node *target_vnode; for (i = 0; VEC_iterate (alias_pair, alias_pairs, i, p);) { @@ -1206,6 +1207,20 @@ handle_alias_pairs (void) cgraph_create_function_alias (p->decl, target_node->decl); VEC_unordered_remove (alias_pair, alias_pairs, i); } + else if (TREE_CODE (p->decl) == VAR_DECL + && !lookup_attribute ("weakref", DECL_ATTRIBUTES (p->decl)) + && (target_vnode = varpool_node_for_asm (p->target)) != NULL) + { + /* Normally EXTERNAL flag is used to mark external inlines, + however for aliases it seems to be allowed to use it w/o + any meaning. See gcc.dg/attr-alias-3.c + However for weakref we insist on EXTERNAL flag being set. + See gcc.dg/attr-alias-5.c */ + if (DECL_EXTERNAL (p->decl)) + DECL_EXTERNAL (p->decl) = 0; + varpool_create_variable_alias (p->decl, target_vnode->decl); + VEC_unordered_remove (alias_pair, alias_pairs, i); + } else { if (dump_file) |