gcc/testsuite/gcc.dg/20020415-1.c

   1 /* PR target/6303
   2    This testcase ICEd because s390 did not define
   3    ASM_SIMPLIFY_DWARF_ADDR hook.  */
   4 /* { dg-do compile { target fpic } } */
   5 /* { dg-options "-O2 -fpic -g" } */
   6 /* { dg-require-effective-target alloca } */
   7
   8 static inline char *
   9 bar (unsigned long x, char *y)
  10 {
  11   extern const char ext[];
  12   const char *a = ext;
  13   char *b = y;
  14
  15   do *--b = a[x % 10]; while ((x /= 10) != 0);
  16   return b;
  17 }
  18
  19 struct A { char *p, *q; };
  20 struct B { int r, s; };
  21
  22 int
  23 foo (struct A *a, const struct B *b)
  24 {
  25   char c[(b->r > b->s) ? b->r : b->s];
  26   char *d = &c[sizeof c];
  27   register char *e;
  28
  29   e = bar (b->r, d);
  30   while (e < d)
  31     {
  32       register const int f = *e++;
  33       if (((a->p >= a->q) ? 1 : (unsigned char) (*a->p++ = f)) == -1)
  34         break;
  35     }
  36 }