Subversion Repositories openrisc_2011-10-31

/* Test for a bogus warning on comparison between signed and unsigned.

   Origin: Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 8/21/2001.  */

/* { dg-do compile } */

/* { dg-options "-Wsign-compare" } */

extern void bar(void);

int foo(int x, int y, unsigned u)

{

  /* A *_DIV_EXPR is non-negative if both operands are.  */

  if (u < ((x=-22)/33)) /* { dg-warning "signed and unsigned" "DIV_EXPR" } */

    return x;

  if (u < ((x=22)/33))

    return x;

  if (u < ((x=22)/(y=33)))

    return x;

  if (u < (((x&0x10000)?128:64) / ((y&0x10000)?8:4)))

    return x;

  /* A *_MOD_EXPR is non-negative if the first operand is.  */

  if (u < ((x=-22)%33)) /* { dg-warning "signed and unsigned" "MOD_EXPR" } */

    return x;

  if (u < ((x=22)%-33))

    return x;

  if (u < ((x==y)%-33))

    return x;

  if (u < (((x=22)/33)%-33))

    return x;

  return 0;

}