re PR tree-optimization/38564 (Revision 142662 caused ICE in insert_into_preds_of_block)

2008-12-30  Richard Guenther  <rguenther@suse.de>

	PR middle-end/38564
	* fold-const.c (fold_comparison): Use the correct result type.

	* gcc.c-torture/compile/pr38564.c: New testcase.

From-SVN: r142961

gcc/ChangeLog

+2008-12-30  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/38564
+	* fold-const.c (fold_comparison): Use the correct result type.
+
 2008-12-30  Dorit Nuzman  <dorit@il.ibm.com>
             Ira Rosen  <irar@il.ibm.com>
 

gcc/fold-const.c

@@ -9036,17 +9036,17 @@ fold_comparison (enum tree_code code, tree type, tree op0, tree op1)
 	      switch (code)
 		{
 		case EQ_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 == bitpos1);
+		  return constant_boolean_node (bitpos0 == bitpos1, type);
 		case NE_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 != bitpos1);
+		  return constant_boolean_node (bitpos0 != bitpos1, type);
 		case LT_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 < bitpos1);
+		  return constant_boolean_node (bitpos0 < bitpos1, type);
 		case LE_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 <= bitpos1);
+		  return constant_boolean_node (bitpos0 <= bitpos1, type);
 		case GE_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 >= bitpos1);
+		  return constant_boolean_node (bitpos0 >= bitpos1, type);
 		case GT_EXPR:
-		  return build_int_cst (boolean_type_node, bitpos0 > bitpos1);
+		  return constant_boolean_node (bitpos0 > bitpos1, type);
 		default:;
 		}
 	    }

gcc/testsuite/ChangeLog

+2008-12-30  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/38564
+	* gcc.c-torture/compile/pr38564.c: New testcase.
+
 2008-12-29  Dorit Nuzman  <dorit@il.ibm.com>
             Ira Rosen  <irar@il.ibm.com>
 

gcc/testsuite/gcc.c-torture/compile/pr38564.c

+struct S
+{
+  struct S *n, *p;
+} *s;
+
+void bar (void *);
+
+int
+foo (int x)
+{
+  struct S p = { &p, &p };
+  int i;
+  for (i = 0; i < x; i++)
+    bar (s);
+  return p.n == &p;
+}
+
+int dialog_calendar(int state)
+{
+  int *obj = (state == 1 ? &state : 0);
+  return (obj == &state);
+}