modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr34808.c (about)

     1  /* PR 34808 */
     2  /* { dg-do compile }
     3  /* { dg-options "-fno-tree-dominator-opts" } */
     4  
     5  extern int flags;
     6  
     7  struct r { int code; int val;};
     8  
     9  void bar (void);
    10  void baz (void);
    11  
    12  int
    13  foo (struct r *home)
    14  {
    15    int n = 0;
    16    int regno = -1;
    17  
    18    if (home->code == 0)
    19      regno = home->val;
    20  
    21    if (home->code == 1)
    22        bar ();
    23    else if (regno >= 0)
    24      n = (regno == 16
    25  	 ? 16
    26  	 : (regno - (unsigned long long) (flags != 0 ? 63 : 15)
    27  	    ? regno - 128
    28  	    : -1));
    29  
    30    baz ();
    31    return n;
    32  }