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* ipa-devirt.c (record_node): Walk through aliases.

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From-SVN: r212406
This commit is contained in:
Jan Hubicka 2014-07-09 22:00:25 +02:00 • committed by Jan Hubicka
parent da22f50517
commit 958c1d61b1
2 changed files with 18 additions and 2 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2014-07-08 Jan Hubicka <hubicka@ucw.cz>
* ipa-devirt.c (record_node): Walk through aliases.
2014-07-08 Jan Hubicka <hubicka@ucw.cz>
* lto-streamer-out.c (hash_scc): Avoid quadratic hashing loop.

16
gcc/ipa-devirt.c
View file

@ -860,7 +860,8 @@ maybe_record_node (vec <cgraph_node *> &nodes,
bool can_refer,
bool *completep)
{
struct cgraph_node *target_node;
struct cgraph_node *target_node, *alias_target;
enum availability avail;
/* cxa_pure_virtual and __builtin_unreachable do not need to be added into
list of targets; the runtime effect of calling them is undefined.
@ -884,6 +885,17 @@ maybe_record_node (vec <cgraph_node *> &nodes,
target_node = cgraph_get_node (target);
/* Preffer alias target over aliases, so we do not get confused by
fake duplicates. */
if (target_node)
{
alias_target = cgraph_function_or_thunk_node (target_node, &avail);
if (target_node != alias_target
&& avail >= AVAIL_AVAILABLE
&& cgraph_function_body_availability (target_node))
target_node = alias_target;
}
/* Method can only be called by polymorphic call if any
of vtables refering to it are alive.
@ -910,7 +922,7 @@ maybe_record_node (vec <cgraph_node *> &nodes,
{
gcc_assert (!target_node->global.inlined_to);
gcc_assert (symtab_real_symbol_p (target_node));
if (!pointer_set_insert (inserted, target))
if (!pointer_set_insert (inserted, target_node->decl))
{
pointer_set_insert (cached_polymorphic_call_targets,
target_node);