re PR tree-optimization/64563 (ICE with "-Wall -Wextra" at -Os and above on x86_64-linux-gnu)

	PR tree-optimization/64563
	* tree-vrp.c (vrp_evaluate_conditional): Check for VR_RANGE
	instead of != VR_VARYING.

	* gcc.dg/pr64563.c: New test.

From-SVN: r219493

gcc/ChangeLog

 2015-01-12  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/64563
+	* tree-vrp.c (vrp_evaluate_conditional): Check for VR_RANGE
+	instead of != VR_VARYING.
+
 	PR target/64513
 	* config/i386/i386.c (ix86_expand_prologue): Add
 	REG_FRAME_RELATED_EXPR to %rax and %r10 pushes.

gcc/testsuite/ChangeLog

 2015-01-12  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/64563
+	* gcc.dg/pr64563.c: New test.
+
 	PR target/64513
 	* gcc.target/i386/pr64513.c: New test.
 

gcc/testsuite/gcc.dg/pr64563.c

+/* PR tree-optimization/64563 */
+/* { dg-do compile } */
+/* { dg-options "-Os -Wtype-limits" } */
+
+int a, b, c, d, f;
+unsigned int e;
+
+void
+foo (void)
+{
+  d = b = (a != (e | 4294967288UL));
+  if (!d)
+    c = f || b;
+}

gcc/tree-vrp.c

@@ -7545,7 +7545,7 @@ vrp_evaluate_conditional (enum tree_code code, tree op0, tree op1, gimple stmt)
       tree type = TREE_TYPE (op0);
       value_range_t *vr0 = get_value_range (op0);
 
-      if (vr0->type != VR_VARYING
+      if (vr0->type == VR_RANGE
 	  && INTEGRAL_TYPE_P (type)
 	  && vrp_val_is_min (vr0->min)
 	  && vrp_val_is_max (vr0->max)