gcc/testsuite/gcc.target/riscv/pr95252.c

   1 /* PR target/95252 */
   2 /* { dg-options "-O3 -funroll-loops -msave-restore" } */
   3 /* { dg-do run } */
   4
   5 int a[6], b = 1, d, e;
   6 long long c;
   7 static int f = 1;
   8
   9 void
  10 fn1 (int p1)
  11 {
  12   b = (b >> 1) & (1 ^ a[(1 ^ p1) & 5]);
  13 }
  14
  15 void
  16 fn2 ()
  17 {
  18   b = (b >> 1) & (1 ^ a[(b ^ 1) & 1]);
  19   fn1 (c >> 1 & 5);
  20   fn1 (c >> 2 & 5);
  21   fn1 (c >> 4 & 5);
  22   fn1 (c >> 8 & 5);
  23 }
  24
  25 int
  26 main ()
  27 {
  28   int i, j;
  29   for (; d;)
  30     {
  31       for (; e;)
  32         fn2 ();
  33       f = 0;
  34     }
  35   for (i = 0; i < 8; i++)
  36     {
  37       if (f)
  38         i = 9;
  39       for (j = 0; j < 7; j++)
  40         fn2 ();
  41     }
  42
  43   if (b != 0)
  44     __builtin_abort ();
  45
  46   return 0;
  47 }