view gcc/testsuite/gcc.c-torture/execute/20020614-1.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* PR c/6677 */
/* Verify that GCC doesn't perform illegal simplifications
   when folding constants.  */

#include <limits.h>

extern void abort (void);
extern void exit (int);

int main (void)
{
  int i;
  signed char j;
  unsigned char k;

  i = SCHAR_MAX;

  j = ((signed char) (i << 1)) / 2;

  if (j != -1)
    abort();

  j = ((signed char) (i * 2)) / 2;

  if (j != -1)
    abort();

  i = UCHAR_MAX;

  k = ((unsigned char) (i << 1)) / 2;

  if (k != UCHAR_MAX/2)
    abort();

  k = ((unsigned char) (i * 2)) / 2;

  if (k != UCHAR_MAX/2)
    abort();

  exit(0);
}