===================================================================
@@ -4835,6 +4835,10 @@ sched_init (void)
{
int i, max_regno = max_reg_num ();
+ if (sched_dump != NULL)
+ /* We need info about pseudos for rtl dumps about pseudo
+ classes and costs. */
+ regstat_init_n_sets_and_refs ();
ira_set_pseudo_classes (sched_verbose ? sched_dump : NULL);
sched_regno_pressure_class
= (enum reg_class *) xmalloc (max_regno * sizeof (enum reg_class));
@@ -4946,6 +4950,8 @@ sched_finish (void)
haifa_finish_h_i_d ();
if (sched_pressure_p)
{
+ if (regstat_n_sets_and_refs != NULL)
+ regstat_free_n_sets_and_refs ();
free (sched_regno_pressure_class);
BITMAP_FREE (region_ref_regs);
BITMAP_FREE (saved_reg_live);
The following patch solves PR49800 which is described on http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800. The patch was successfully bootstrapped on x86/x86-64. Committed as rev. 183843. 2012-02-02 Vladimir Makarov <vmakarov@redhat.com> PR rtl-optimization/49800 * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs. (sched_finish): Call regstat_free_n_sets_and_refs.