Fix IPA-CP topological sorting

2019-06-18  Martin Jambor  <mjambor@suse.cz>

	PR ipa/90889
	* ipa-cp.c (ignore_edge_p): Do not ignore edges when only the
	caller does not have flag_ipa_cp set.

From-SVN: r272408

gcc/ChangeLog

+2019-06-18  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/90889
+	* ipa-cp.c (ignore_edge_p): Do not ignore edges when only the
+	caller does not have flag_ipa_cp set.
+
 2019-06-18  Alejandro Martinez  <alejandro.martinezvicente@arm.com>
 
 	* config/aarch64/aarch64-sve.md (mask_fold_left_plus_<mode>): Renamed

gcc/ipa-cp.c

@@ -817,7 +817,6 @@ ignore_edge_p (cgraph_edge *e)
     = e->callee->function_or_virtual_thunk_symbol (&avail, e->caller);
 
   return (avail <= AVAIL_INTERPOSABLE
-	  || !opt_for_fn (e->caller->decl, flag_ipa_cp)
 	  || !opt_for_fn (ultimate_target->decl, flag_ipa_cp));
 }