gcc/testsuite/gcc.dg/vect/vect-126.c

   1 /* PR tree-optimization/66718 */
   2 /* { dg-do compile } */
   3
   4 int *a[1024], b[1024];
   5 struct S { int u, v, w, x; };
   6 struct S c[1024];
   7 int d[1024][10];
   8
   9 void
  10 f0 (void)
  11 {
  12   for (int i = 0; i < 1024; i++)
  13     a[i] = &b[0];
  14 }
  15
  16 void
  17 f1 (void)
  18 {
  19   for (int i = 0; i < 1024; i++)
  20     {
  21       int *p = &b[0];
  22       a[i] = p + i;
  23     }
  24 }
  25
  26 void
  27 f2 (int *p)
  28 {
  29   for (int i = 0; i < 1024; i++)
  30     a[i] = &p[i];
  31 }
  32
  33 void
  34 f3 (void)
  35 {
  36   for (int i = 0; i < 1024; i++)
  37     a[i] = &b[i];
  38 }
  39
  40 void
  41 f4 (void)
  42 {
  43   int *p = &c[0].v;
  44   for (int i = 0; i < 1024; i++)
  45     a[i] = &p[4 * i];
  46 }
  47
  48 void
  49 f5 (void)
  50 {
  51   for (int i = 0; i < 1024; i++)
  52     a[i] = &c[i].v;
  53 }
  54
  55 void
  56 f6 (void)
  57 {
  58   for (int i = 0; i < 1024; i++)
  59     for (unsigned int j = 0; j < 10; j++)
  60       a[i] = &d[i][j];
  61 }
  62
  63 /* { dg-final { scan-tree-dump-times "vectorized 1 loops in function" 7 "vect" { target { i?86-*-* x86_64-*-* } } } } */