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| author | Jan Hubicka <hubicka@ucw.cz> | 2015-12-08 23:02:23 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2015-12-08 22:02:23 +0000 |
| commit | 9b21e866825085e069dd2763a702202cb9adeb16 (patch) | |
| tree | 45e5fa8debe25103566c68d50a4572bfba529fdc /gcc | |
| parent | ced7e9584b848a8d5975b23efb5eac04ee2aee6f (diff) | |
| download | gcc-9b21e866825085e069dd2763a702202cb9adeb16.zip gcc-9b21e866825085e069dd2763a702202cb9adeb16.tar.gz gcc-9b21e866825085e069dd2763a702202cb9adeb16.tar.bz2 | |
re PR lto/61886 (LTO breaks fread with _FORTIFY_SOURCE=2)
PR ipa/61886
* varpool.c (varpool_node::get_availability): Recurse only on
weakrefs with definition in the target.
(symbol_table::remove_unreferenced_decls): Keep aliases in the boundary.
From-SVN: r231429
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 11 | ||||
| -rw-r--r-- | gcc/varpool.c | 10 |
2 files changed, 14 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8554091..55f89c9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,8 +1,15 @@ 2015-12-08 Jan Hubicka <hubicka@ucw.cz> PR ipa/61886 - * ipa-visibility.c (can_replace_by_local_alias): Look through transparent - aliaes; refuse weakrefs. + * varpool.c (varpool_node::get_availability): Recurse only on + weakrefs with definition in the target. + (symbol_table::remove_unreferenced_decls): Keep aliases in the boundary. + +2015-12-08 Jan Hubicka <hubicka@ucw.cz> + + PR ipa/61886 + * ipa-visibility.c (can_replace_by_local_alias): Look through + transparent aliases; refuse weakrefs. (update_visibility_by_resolution_info): Skip transparent aliases in the analysis part diff --git a/gcc/varpool.c b/gcc/varpool.c index ffbec6d..ac77269 100644 --- a/gcc/varpool.c +++ b/gcc/varpool.c @@ -490,7 +490,7 @@ varpool_node::get_availability (void) if (DECL_IN_CONSTANT_POOL (decl) || DECL_VIRTUAL_P (decl)) return AVAIL_AVAILABLE; - if (transparent_alias) + if (transparent_alias && definition) { enum availability avail; @@ -667,11 +667,11 @@ symbol_table::remove_unreferenced_decls (void) enqueue_node (vnode, &first); else { - referenced.add (node); - while (node->alias && node->definition) + referenced.add (vnode); + while (vnode && vnode->alias && vnode->definition) { - node = node->get_alias_target (); - referenced.add (node); + vnode = vnode->get_alias_target (); + referenced.add (vnode); } } } |