gcc/testsuite/gcc.c-torture/execute/pr56051.c

   1 /* PR tree-optimization/56051 */
   2
   3 extern void abort (void);
   4
   5 int
   6 main ()
   7 {
   8   unsigned char x1[1] = { 0 };
   9   unsigned int s1 = __CHAR_BIT__;
  10   int a1 = x1[0] < (unsigned char) (1 << s1);
  11   unsigned char y1 = (unsigned char) (1 << s1);
  12   int b1 = x1[0] < y1;
  13   if (a1 != b1)
  14     abort ();
  15 #if __SIZEOF_LONG_LONG__ > __SIZEOF_INT__
  16   unsigned long long x2[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
  17   unsigned int s2 = sizeof (int) * __CHAR_BIT__ - 1;
  18   int a2 = x2[0] >= (unsigned long long) (1 << s2);
  19   unsigned long long y2 = 1 << s2;
  20   int b2 = x2[0] >= y2;
  21   if (a2 != b2)
  22     abort ();
  23   unsigned long long x3[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
  24   unsigned int s3 = sizeof (int) * __CHAR_BIT__ - 1;
  25   int a3 = x3[0] >= (unsigned long long) (1U << s3);
  26   unsigned long long y3 = 1U << s3;
  27   int b3 = x3[0] >= y3;
  28   if (a3 != b3)
  29     abort ();
  30 #endif
  31   return 0;
  32 }