gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/20021024-1.c

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