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

   1 /* PR tree-optimization/66718 */
   2 /* { dg-do compile } */
   3 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   4
   5 int *a[1024], b[1024];
   6 struct S { int u, v, w, x; };
   7 struct S c[1024];
   8 int d[1024][10];
   9
  10 void
  11 f0 (void)
  12 {
  13   for (int i = 0; i < 1024; i++)
  14     a[i] = &b[0];
  15 }
  16
  17 void
  18 f1 (void)
  19 {
  20   for (int i = 0; i < 1024; i++)
  21     {
  22       int *p = &b[0];
  23       a[i] = p + i;
  24     }
  25 }
  26
  27 void
  28 f2 (int *p)
  29 {
  30   for (int i = 0; i < 1024; i++)
  31     a[i] = &p[i];
  32 }
  33
  34 void
  35 f3 (void)
  36 {
  37   for (int i = 0; i < 1024; i++)
  38     a[i] = &b[i];
  39 }
  40
  41 void
  42 f4 (void)
  43 {
  44   int *p = &c[0].v;
  45   for (int i = 0; i < 1024; i++)
  46     a[i] = &p[4 * i];
  47 }
  48
  49 void
  50 f5 (void)
  51 {
  52   for (int i = 0; i < 1024; i++)
  53     a[i] = &c[i].v;
  54 }
  55
  56 void
  57 f6 (void)
  58 {
  59   for (int i = 0; i < 1024; i++)
  60     for (unsigned int j = 0; j < 10; j++)
  61       a[i] = &d[i][j];
  62 }
  63
  64 /* { dg-final { scan-tree-dump-times "vectorized 1 loops in function" 7 "vect" { target { i?86-*-* x86_64-*-* } } } } */
  65 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */