re PR tree-optimization/80821 (genmatch conflicting predicates)

2017-05-19  Richard Biener  <rguenther@suse.de>

	PR build/80821
	* genmatch.c (dt_node::gen_kids_1): Add missing scope around
	predicate evaluation.

From-SVN: r248264

gcc/ChangeLog

+2017-05-19  Richard Biener  <rguenther@suse.de>
+
+	PR build/80821
+	* genmatch.c (dt_node::gen_kids_1): Add missing scope around
+	predicate evaluation.
+
 2017-05-19  Jan Hubicka  <hubicka@ucw.cz>
 
 	* ipa-inline.h (ipa_call_summary): Turn sizes into signed;

gcc/genmatch.c

@@ -3005,6 +3005,8 @@ dt_node::gen_kids_1 (FILE *f, int indent, bool gimple,
       expr *e = as_a <expr *> (preds[i]->op);
       predicate_id *p = as_a <predicate_id *> (e->operation);
       preds[i]->get_name (kid_opname);
+      fprintf_indent (f, indent, "{\n");
+      indent += 2;
       fprintf_indent (f, indent, "tree %s_pops[%d];\n", kid_opname, p->nargs);
       fprintf_indent (f, indent, "if (%s_%s (%s, %s_pops%s))\n",
 	       gimple ? "gimple" : "tree",
@@ -3020,6 +3022,8 @@ dt_node::gen_kids_1 (FILE *f, int indent, bool gimple,
 	}
       preds[i]->gen_kids (f, indent + 4, gimple);
       fprintf (f, "}\n");
+      indent -= 2;
+      fprintf_indent (f, indent, "}\n");
     }
 
   for (unsigned i = 0; i < others.length (); ++i)