ipa-profile.c: reset call_sums state within ipa-profile.c (v2; PR 93315)

gcc/ChangeLog:
	PR ipa/93315
	* ipa-profile.c (ipa_profile): Delete call_sums and set it to
	NULL on exit.

gcc/ChangeLog

+2020-01-21  David Malcolm  <dmalcolm@redhat.com>
+
+	PR ipa/93315
+	* ipa-profile.c (ipa_profile): Delete call_sums and set it to
+	NULL on exit.
+
 2020-01-18  Jan Hubicka  <hubicka@ucw.cz>
 
 	PR lto/93318	

gcc/ipa-profile.c

@@ -1023,6 +1023,9 @@ ipa_profile (void)
   if (dump_file && (dump_flags & TDF_DETAILS))
     symtab->dump (dump_file);
 
+  delete call_sums;
+  call_sums = NULL;
+
   return 0;
 }