gcc/testsuite/gcc.dg/vect/pr52298.c

   1 /* { dg-additional-options "-O1 -fno-tree-pre -fno-tree-loop-im" } */
   2
   3 #include "tree-vect.h"
   4
   5 extern void abort (void);
   6 int c[80];
   7
   8 __attribute__((noinline)) int
   9 foo (void)
  10 {
  11   int l = 0;
  12   int a, b;
  13
  14   for (a = 3; a >= 0; a--)
  15     for (b = 7; b >= 0; b--)
  16       l |= c[a+60];
  17   return l;
  18 }
  19
  20 int
  21 main ()
  22 {
  23   int i;
  24   check_vect ();
  25   for (i = 0; i < 60; i++)
  26     c[i] = 1;
  27   for (; i < 64; i++)
  28     c[i] = 1 << (i - 59);
  29   if (foo () != 30)
  30     abort ();
  31   return 0;
  32 }
  33