modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr24930.c (about)

     1  /* PR 24930 */
     2  extern int foo(int u) __attribute__((noinline));
     3  int foo(int u) {return 0;}
     4  int
     5  main(int argc, char** argv)
     6  {
     7    const char *buf = argv[1];
     8    
     9    unsigned int data = (((unsigned int) buf[0]) << 8) + (unsigned int) buf[1];
    10    if (data & 0x8000) {
    11      data &= 0x7fff ;
    12      data ^= 0x7fff ;
    13      data += 1 ;
    14      data *= -1 ;
    15    }
    16    return foo((int)data);
    17  }