gcc/testsuite/gcc.target/i386/pr57275.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -march=native" } */
   3
   4 extern void abort (void);
   5
   6 #define N 1024
   7
   8 float a[N], b[N], c[N];
   9 int k[N];
  10
  11 __attribute__((noinline, noclone)) void
  12 f (void)
  13 {
  14   int i;
  15   for (i = 0; i < N; i++)
  16     {
  17       a[i] = b[k[i]];
  18       b[i] = c[i];
  19     }
  20 }
  21
  22 int main ()
  23 {
  24   int i;
  25
  26   for (i = 0; i < N; i++)
  27   {
  28     k[i] = i%2;
  29     b[i] = i;
  30     c[i] = 179;
  31   }
  32
  33   f ();
  34
  35   if (a[2] != 179 || a[3] != 179)
  36     abort ();
  37
  38   return 0;
  39 }