1/* PR optimization/11210 */
2/* Originator: Guido Classen <guido@clagi.de> */
3/* Reduced testcase by Falk Hueffner <falk@debian.org> */
4/* { dg-do compile } */
5/* { dg-options "-O" } */
6
7/* Verify that the constant expressions folder doesn't
8   throw away the cast operation in the comparison.  */
9
10struct str {
11  int head;
12  signed char data[8];
13};
14
15int foo(struct str t)
16{
17  return t.data[0] || (unsigned char) t.data[2] != 130; /* { dg-bogus "comparison is always 1" } */
18}
19