gcc/testsuite/gcc.dg/pr48774.c

   1 /* PR target/48774 */
   2 /* { dg-do run } */
   3 /* { dg-skip-if "PR 52125" { mips_rel } { "*" } { "" } } */
   4 /* { dg-options "-O2 -funroll-loops" } */
   5
   6 extern void abort (void);
   7 unsigned long int s[24]
   8   = { 12, ~1, 12, ~2, 12, ~4, 12, ~8, 12, ~16, 12, ~32,
   9       12, ~64, 12, ~128, 12, ~256, 12, ~512, 12, ~1024, 12, ~2048 };
  10 struct { int n; unsigned long *e[12]; } g
  11   = { 12, { &s[0], &s[2], &s[4], &s[6], &s[8], &s[10], &s[12], &s[14],
  12             &s[16], &s[18], &s[20], &s[22] } };
  13 int c[12];
  14
  15 __attribute__((noinline, noclone)) void
  16 foo (void)
  17 {
  18   int i, j;
  19   for (i = 0; i < g.n; i++)
  20     for (j = 0; j < g.n; j++)
  21       {
  22         if (i == j && j < g.e[0][0] && (g.e[i][1] & (1UL << j)))
  23           abort ();
  24         if (j < g.e[0][0] && (g.e[i][1] & (1UL << j)))
  25           c[i]++;
  26       }
  27 }
  28
  29 int
  30 main ()
  31 {
  32   int i;
  33   asm volatile ("" : "+m" (s), "+m" (g), "+m" (c));
  34   foo ();
  35   for (i = 0; i < 12; i++)
  36     if (c[i] != 11)
  37       abort ();
  38   return 0;
  39 }