modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/pr66757.c (about)

     1  /* PR tree-optimization/66757 */
     2  /* Testcase by Zhendong Su <su@cs.ucdavis.edu> */
     3  
     4  int a, b;
     5  
     6  int
     7  main (void)
     8  {
     9    unsigned int t = (unsigned char) (~b); 
    10  
    11    if ((t ^ 1) / 255)
    12      __builtin_abort (); 
    13  
    14    return 0;
    15  }