gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr56051.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

/* PR tree-optimization/56051 */

extern void abort (void);

int
main ()
{
  unsigned char x1[1] = { 0 };
  unsigned int s1 = __CHAR_BIT__;
  int a1 = x1[0] < (unsigned char) (1 << s1);
  unsigned char y1 = (unsigned char) (1 << s1);
  int b1 = x1[0] < y1;
  if (a1 != b1)
    abort ();
#if __SIZEOF_LONG_LONG__ > __SIZEOF_INT__
  unsigned long long x2[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
  unsigned int s2 = sizeof (int) * __CHAR_BIT__ - 1;
  int a2 = x2[0] >= (unsigned long long) (1 << s2);
  unsigned long long y2 = 1 << s2;
  int b2 = x2[0] >= y2;
  if (a2 != b2)
    abort ();
  unsigned long long x3[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
  unsigned int s3 = sizeof (int) * __CHAR_BIT__ - 1;
  int a3 = x3[0] >= (unsigned long long) (1U << s3);
  unsigned long long y3 = 1U << s3;
  int b3 = x3[0] >= y3;
  if (a3 != b3)
    abort ();
#endif
  return 0;
}