re PR tree-optimization/92131 (incorrect assumption that (ao >= 0) is always false)

	PR tree-optimization/92131
	* tree-vrp.c (value_range_base::dump): Display +INF for both
	pointers and integers when appropriate.

From-SVN: r277107

gcc/ChangeLog

+2019-10-17  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR tree-optimization/92131
+	* tree-vrp.c (value_range_base::dump): Display +INF for both
+	pointers and integers when appropriate.
+
 2019-10-17  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 
 	* tree-vect-loop.c (vect_analyze_loop_2): Use same condition to decide

gcc/testsuite/ChangeLog

+2019-10-17  Aldy Hernandez  <aldyh@redhat.com>
+
+	* gcc.dg/tree-ssa/evrp4.c: Check for +INF instead of -1.
+
 2019-10-17  Christophe Lyon  <christophe.lyon@linaro.org>
 
 	* gcc.target/arm/vseleqdf.c: Add missing closing bracket.

gcc/testsuite/gcc.dg/tree-ssa/evrp4.c

@@ -17,4 +17,4 @@ int bar (struct st *s)
   foo (&s->a);
 }
 
-/* { dg-final { scan-tree-dump "\\\[1B, -1B\\\]" "evrp" } } */
+/* { dg-final { scan-tree-dump "\\\[1B, \\+INF\\\]" "evrp" } } */

gcc/tree-vrp.c

@@ -428,8 +428,8 @@ value_range_base::dump (FILE *file) const
 
       fprintf (file, ", ");
 
-      if (INTEGRAL_TYPE_P (ttype)
-	  && vrp_val_is_max (max ())
+      if (supports_type_p (ttype)
+	  && vrp_val_is_max (max (), true)
 	  && TYPE_PRECISION (ttype) != 1)
 	fprintf (file, "+INF");
       else