gcc/testsuite/gcc.c-torture/execute/20021024-1.c

   1 /* Origin: PR target/6981 from Mattias Engdegaard <mattias@virtutech.se>.  */
   2 /* { dg-require-effective-target int32plus } */
   3
   4 void exit (int);
   5 void abort (void);
   6
   7 unsigned long long *cp, m;
   8
   9 void foo (void)
  10 {
  11 }
  12
  13 void bar (unsigned rop, unsigned long long *r)
  14 {
  15   unsigned rs1, rs2, rd;
  16
  17 top:
  18   rs2 = (rop >> 23) & 0x1ff;
  19   rs1 = (rop >> 9) & 0x1ff;
  20   rd = rop & 0x1ff;
  21
  22   *cp = 1;
  23   m = r[rs1] + r[rs2];
  24   *cp = 2;
  25   foo();
  26   if (!rd)
  27     goto top;
  28   r[rd] = 1;
  29 }
  30
  31 int main(void)
  32 {
  33   static unsigned long long r[64];
  34   unsigned long long cr;
  35   cp = &cr;
  36
  37   r[4] = 47;
  38   r[8] = 11;
  39   bar((8 << 23) | (4 << 9) | 15, r);
  40
  41   if (m != 47 + 11)
  42     abort ();
  43   exit (0);
  44 }