https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64686
--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
It is an ordering issue. We are adding edges to heap and resolving speculations
at once that means that we have temporarily wrong summaries. I am testing the
following that should not affect codegen in any important way except for random
changes of functions with the same priority.
Index: ipa-inline.c
===================================================================
--- ipa-inline.c (revision 220417)
+++ ipa-inline.c (working copy)
@@ -1702,6 +1702,7 @@ inline_small_functions (void)
{
bool update = false;
struct cgraph_edge *next;
+ bool has_speculative = false;
if (dump_file)
fprintf (dump_file, "Enqueueing calls in %s/%i.\n",
@@ -1719,12 +1720,17 @@ inline_small_functions (void)
gcc_assert (!edge->aux);
update_edge_key (&edge_heap, edge);
}
- if (edge->speculative && !speculation_useful_p (edge, edge->aux !=
NULL))
+ if (edge->speculative)
+ has_speculative = true;
+ }
+ if (has_speculative)
+ for (edge = node->callees; edge; edge = next)
+ if (edge->speculative && !speculation_useful_p (edge,
+ edge->aux != NULL))
{
edge->resolve_speculation ();
update = true;
}
- }
if (update)
{
struct cgraph_node *where = node->global.inlined_to
