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/* PR c/27273 */

/* { dg-do compile } */

// This used to warn about "overflow in implicit constant conversion",

// which was wrong; 512 is never converted to unsigned char.  Rather, an

// appropriate warning would be that the & expression always evaluates to 0

// because of the limited range of unsigned char.

unsigned char rx_async(unsigned char p) {

    return p & 512; /* { dg-warning "" "" { xfail *-*-* } } */

}