modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/20070517-1.c (about)

     1  /* PR rtl-optimization/31691 */
     2  /* Origin: Chi-Hua Chen <stephaniechc-gccbug@yahoo.com> */
     3  
     4  extern void abort (void);
     5  
     6  static int get_kind(int) __attribute__ ((noinline));
     7  
     8  static int get_kind(int v)
     9  {
    10    volatile int k = v;
    11    return k;
    12  }
    13  
    14  static int some_call(void) __attribute__ ((noinline));
    15  
    16  static int some_call(void)
    17  {
    18    return 0;
    19  }
    20  
    21  static void example (int arg)
    22  {
    23    int tmp, kind = get_kind (arg);
    24  
    25    if (kind == 9 || kind == 10 || kind == 5)
    26      {
    27        if (some_call() == 0)
    28          {
    29            if (kind == 9 || kind == 10)
    30              tmp = arg;
    31            else
    32              abort();
    33          }
    34      }
    35  } 
    36  
    37  int main(void)
    38  {
    39    example(10);
    40    return 0;
    41  }