------- Comment #5 from pinskia at gcc dot gnu dot org 2007-11-03 18:52 -------
The patch to fix the bug:
Index: ../../gcc/fold-const.c
===================================================================
--- ../../gcc/fold-const.c (revision 129871)
+++ ../../gcc/fold-const.c (working copy)
@@ -11709,12 +11709,12 @@ fold_binary (enum tree_code code, tree t
/* bool_var != 1 becomes !bool_var. */
if (TREE_CODE (TREE_TYPE (arg0)) == BOOLEAN_TYPE && integer_onep (arg1)
&& code == NE_EXPR)
- return fold_build1 (TRUTH_NOT_EXPR, type, arg0);
+ return fold_build1 (TRUTH_NOT_EXPR, type, fold_convert (type, arg0));
/* bool_var == 0 becomes !bool_var. */
if (TREE_CODE (TREE_TYPE (arg0)) == BOOLEAN_TYPE && integer_zerop (arg1)
&& code == EQ_EXPR)
- return fold_build1 (TRUTH_NOT_EXPR, type, arg0);
+ return fold_build1 (TRUTH_NOT_EXPR, type, fold_convert (type, arg0));
/* If this is an equality comparison of the address of two non-weak,
unaliased symbols neither of which are extern (since we do not
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32931
