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ipa-devirt.c (maybe_record_node): Ignore all non-methods (including cxa_pure_virtual).

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* ipa-devirt.c (maybe_record_node): Ignore all non-methods (including
	cxa_pure_virtual).

From-SVN: r209391
This commit is contained in:
Jan Hubicka 2014-04-14 21:59:00 +02:00 • committed by Jan Hubicka
parent 9dba4b5565
commit 88f592e3f4
2 changed files with 15 additions and 8 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-04-14 Jan Hubicka <hubicka@ucw.cz>
* ipa-devirt.c (maybe_record_node): Ignore all non-methods (including
cxa_pure_virtual).
2014-04-14 Paolo Carlini <paolo.carlini@oracle.com> 2014-04-14 Paolo Carlini <paolo.carlini@oracle.com>
* tree.h (TYPE_IDENTIFIER): Declare. * tree.h (TYPE_IDENTIFIER): Declare.

16
gcc/ipa-devirt.c
View file

@ -611,7 +611,12 @@ maybe_record_node (vec <cgraph_node *> &nodes,
bool *completep) bool *completep)
{ {
struct cgraph_node *target_node; struct cgraph_node *target_node;
enum built_in_function fcode;
/* cxa_pure_virtual and __builtin_unreachable do not need to be added into
list of targets; the runtime effect of calling them is undefined.
Only "real" virtual methods should be accounted. */
if (target && TREE_CODE (TREE_TYPE (target)) != METHOD_TYPE)
return;
if (!can_refer) if (!can_refer)
{ {
@ -624,17 +629,14 @@ maybe_record_node (vec <cgraph_node *> &nodes,
return; return;
} }
if (!target if (!target)
/* Those are used to mark impossible scenarios. */
|| (fcode = DECL_FUNCTION_CODE (target))
== BUILT_IN_UNREACHABLE
|| fcode == BUILT_IN_TRAP)
return; return;
target_node = cgraph_get_node (target); target_node = cgraph_get_node (target);
if (target_node != NULL if (target_node != NULL
&& (TREE_PUBLIC (target) && ((TREE_PUBLIC (target)
|| DECL_EXTERNAL (target))
|| target_node->definition) || target_node->definition)
&& symtab_real_symbol_p (target_node)) && symtab_real_symbol_p (target_node))
{ {