re PR lto/42696 (lto1 error with -fsigned-char and char comparison)

2010-07-20  Richard Guenther  <rguenther@suse.de>

	PR lto/42696
	* gcc.dg/lto/20100720-4_0.c: New testcase.

From-SVN: r162341

gcc/testsuite/ChangeLog

 2010-07-20  Richard Guenther  <rguenther@suse.de>
 
+	PR lto/42696
+	* gcc.dg/lto/20100720-4_0.c: New testcase.
+
+2010-07-20  Richard Guenther  <rguenther@suse.de>
+
 	PR lto/43221
 	* gcc.dg/lto/20100720-2_0.c: New testcase.
 	* gcc.dg/lto/20100720-2_1.c: Likewise.

gcc/testsuite/gcc.dg/lto/20100720-4_0.c

+/* { dg-lto-do link } */
+/* { dg-lto-options {{-flto -fsigned-char} {-flto -funsigned-char}} } */
+
+char *a;
+int f;
+
+void
+foo (void)
+{
+  f = (*a != '-');
+} 
+int main()
+{
+  return 0;
+}