modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/20020304-2.c (about)

     1  /* This testcase ICEd because a SUBREG of MEM/v was never
     2     simplified.  */
     3  volatile unsigned long long *a;
     4  
     5  unsigned char
     6  foo (void)
     7  {
     8    unsigned char b = (*a != 0);
     9    return b;
    10  }