re PR tree-optimization/87800 (CPU2006 416.gamess failed to build with LTO)

2018-10-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87800
	* tree-vect-slp.c (vect_build_slp_tree_2): Reject any
	non-induction or reduction PHIs.

From-SVN: r265619

gcc/ChangeLog

+2018-10-30  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/87800
+	* tree-vect-slp.c (vect_build_slp_tree_2): Reject any
+	non-induction or reduction PHIs.
+
 2018-10-30 Sameera Deshpande <sameera.deshpande@linaro.org
 
-	* gcc/config/aarch64/falkor-tag-collision-avoidance.c
+	* config/aarch64/falkor-tag-collision-avoidance.c
 	(execute_tag_collision_avoidance): Call df_note_add_problem.
 
 2018-10-30  Martin Liska  <mliska@suse.cz>

gcc/tree-vect-slp.c

@@ -1116,7 +1116,9 @@ vect_build_slp_tree_2 (vec_info *vinfo,
 	    if (stmt_info != other_info)
 	      return NULL;
 	}
-      else
+      else if (def_type == vect_reduction_def
+	       || def_type == vect_double_reduction_def
+	       || def_type == vect_nested_cycle)
 	{
 	  /* Else def types have to match.  */
 	  stmt_vec_info other_info;
@@ -1130,6 +1132,8 @@ vect_build_slp_tree_2 (vec_info *vinfo,
 		return NULL;
 	    }
 	}
+      else
+	return NULL;
       node = vect_create_new_slp_node (stmts);
       return node;
     }