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ipa-inline.c (ipa_inline): Avoid infinite loop on inlining empty virtual functions calling themselves.

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* ipa-inline.c (ipa_inline): Avoid infinite loop on inlining
	empty virtual functions calling themselves.

From-SVN: r193038
This commit is contained in:
Jan Hubicka 2012-10-31 17:15:21 +01:00 • committed by Jan Hubicka
parent 737df6e617
commit e3c7b49cd8
2 changed files with 38 additions and 21 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-10-31 Jan Hubicka <jh@suse.cz>
* ipa-inline.c (ipa_inline): Avoid infinite loop on inlining
empty virtual functions calling themselves.
2012-10-31 Tom Tromey <tromey@redhat.com>
PR other/50899

54
gcc/ipa-inline.c
View file

@ -1767,29 +1767,41 @@ ipa_inline (void)
FOR_EACH_DEFINED_FUNCTION (node)
{
if (want_inline_function_to_all_callers_p (node, cold))
while (node->callers && !node->global.inlined_to)
{
struct cgraph_node *caller = node->callers->caller;
{
int num_calls = 0;
struct cgraph_edge *e;
for (e = node->callers; e; e = e->next_caller)
num_calls++;
while (node->callers && !node->global.inlined_to)
{
struct cgraph_node *caller = node->callers->caller;
if (dump_file)
{
fprintf (dump_file,
"\nInlining %s size %i.\n",
cgraph_node_name (node),
inline_summary (node)->size);
fprintf (dump_file,
" Called once from %s %i insns.\n",
cgraph_node_name (node->callers->caller),
inline_summary (node->callers->caller)->size);
}
if (dump_file)
{
fprintf (dump_file,
"\nInlining %s size %i.\n",
cgraph_node_name (node),
inline_summary (node)->size);
fprintf (dump_file,
" Called once from %s %i insns.\n",
cgraph_node_name (node->callers->caller),
inline_summary (node->callers->caller)->size);
}
inline_call (node->callers, true, NULL, NULL, true);
if (dump_file)
fprintf (dump_file,
" Inlined into %s which now has %i size\n",
cgraph_node_name (caller),
inline_summary (caller)->size);
}
inline_call (node->callers, true, NULL, NULL, true);
if (dump_file)
fprintf (dump_file,
" Inlined into %s which now has %i size\n",
cgraph_node_name (caller),
inline_summary (caller)->size);
if (!num_calls--)
{
if (dump_file)
fprintf (dump_file, "New calls found; giving up.\n");
break;
}
}
}
}
}
}