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

     1  /* { dg-require-effective-target int32plus } */
     2  
     3  /* Failed on sparc with -mv8plus because sparc.c:set_extends() thought
     4     erroneously that SImode ASHIFT chops the upper bits, it does not.  */
     5  
     6  typedef unsigned long long uint64;
     7  
     8  void g(uint64 x, int y, int z, uint64 *p)
     9  {
    10  	unsigned w = ((x >> y) & 0xffffffffULL) << (z & 0x1f);
    11  	*p |= (w & 0xffffffffULL) << z;
    12  }
    13  
    14  int main(void)
    15  {
    16  	uint64 a = 0;
    17  	g(0xdeadbeef01234567ULL, 0, 0, &a);
    18  	return (a == 0x01234567) ? 0 : 1;
    19  }
    20  
    21  
    22