gcc/testsuite/gcc.dg/vect/section-anchors-vect-69.c

   1 /* { dg-require-effective-target section_anchors } */
   2 /* { dg-additional-options "--param vect-max-peeling-for-alignment=0" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 32
   8
   9 struct s{
  10   int m;
  11   int n[N][N][N];
  12 };
  13
  14 struct s2{
  15   int m;
  16   int n[N-1][N-1][N-1];
  17 };
  18
  19 struct test1{
  20   struct s a; /* array a.n is unaligned */
  21   int b;
  22   int c;
  23   struct s e; /* array e.n is aligned */
  24 };
  25
  26 struct test2{
  27   struct s2 a; /* array a.n is unaligned */
  28   int b;
  29   int c;
  30   struct s2 e; /* array e.n is aligned */
  31 };
  32
  33
  34 struct test1 tmp1[4];
  35 struct test2 tmp2[4];
  36
  37 int main1 ()
  38 {
  39   int i,j;
  40
  41   /* 1. unaligned */
  42   for (i = 0; i < N; i++)
  43     {
  44       tmp1[2].a.n[1][2][i] = 5;
  45     }
  46
  47   /* check results:  */
  48   for (i = 0; i <N; i++)
  49     {
  50       if (tmp1[2].a.n[1][2][i] != 5)
  51         abort ();
  52     }
  53
  54   /* 2. aligned */
  55   for (i = 3; i < N-1; i++)
  56     {
  57       tmp1[2].a.n[1][2][i] = 6;
  58     }
  59
  60   /* check results:  */
  61   for (i = 3; i < N-1; i++)
  62     {
  63       if (tmp1[2].a.n[1][2][i] != 6)
  64         abort ();
  65     }
  66
  67   /* 3. aligned */
  68   for (i = 0; i < N; i++)
  69     {
  70       for (j = 0; j < N; j++)
  71         {
  72           tmp1[2].e.n[1][i][j] = 8;
  73         }
  74     }
  75
  76   /* check results:  */
  77   for (i = 0; i < N; i++)
  78     {
  79       for (j = 0; j < N; j++)
  80         {
  81           if (tmp1[2].e.n[1][i][j] != 8)
  82             abort ();
  83         }
  84     }
  85
  86   /* 4. unaligned */
  87   for (i = 0; i < N-4; i++)
  88     {
  89       for (j = 0; j < N-4; j++)
  90         {
  91           tmp2[2].e.n[1][i][j] = 8;
  92         }
  93     }
  94
  95   /* check results:  */
  96   for (i = 0; i < N-4; i++)
  97     {
  98       for (j = 0; j < N-4; j++)
  99         {
 100           if (tmp2[2].e.n[1][i][j] != 8)
 101             abort ();
 102         }
 103     }
 104
 105   return 0;
 106 }
 107
 108 int main (void)
 109 {
 110   check_vect ();
 111
 112   return main1 ();
 113 }
 114
 115 /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" { target vect_int } } } */
 116 /* Alignment forced using versioning until the pass that increases alignment
 117   is extended to handle structs.  */
 118 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 4 "vect" { target {vect_int && {! vector_alignment_reachable} } } } } */