nested-calls-1.c

用于进行gcc测试

/* PR middle-end/24003 */
/* Contributed by Eric Botcazou <[e-mail]> */

/* { dg-do run } */
/* { dg-options "-std=c99 -O -fno-inline" } */
/* { dg-options "-std=c99 -O -fno-inline -mtune=i686" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */

#include <limits.h>

typedef unsigned long uns32_t;
typedef unsigned long long uns64_t;

extern void abort(void);

uns32_t lo (uns64_t p)
{
  return (uns32_t)p;
}

uns64_t concat (uns32_t p1, uns32_t p2)
{
#if LLONG_MAX > 2147483647L
  return ((uns64_t)p1 << 32) | p2;
#else
  return 0;
#endif
}

uns64_t lshift32 (uns64_t p1, uns32_t p2)
{
  return concat (lo (p1), p2);
}

int main(void)
{
#if LLONG_MAX > 2147483647L
  if (lshift32 (0xFFFFFFFF12345678ULL, 0x90ABCDEFUL) != 0x1234567890ABCDEFULL)
    abort ();
#endif

  return 0;
}