view gcc/testsuite/gcc.c-torture/execute/pr19606.c @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* PR c/19606
   The C front end used to shorten the type of a division to a type
   that does not preserve the semantics of the original computation.
   Make sure that won't happen.  */

signed char a = -4;

int
foo (void)
{
  return ((unsigned int) (signed int) a) / 2LL;
}

int
bar (void)
{
  return ((unsigned int) (signed int) a) % 5LL;
}

int
main (void)
{
  int r;

  r = foo ();
  if (r != ((unsigned int) (signed int) (signed char) -4) / 2LL)
    abort ();

  r = bar ();
  if (r != ((unsigned int) (signed int) (signed char) -4) % 5LL)
    abort ();

  exit (0);
}