gnu/dist/gcc4/gcc/testsuite/gcc.dg/vect/vect-68.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 32
   7
   8 struct s{
   9   int m;
  10   int n[N][N][N];
  11 };
  12
  13 struct test1{
  14   struct s a; /* array a.n is unaligned */
  15   int b;
  16   int c;
  17   struct s e; /* array e.n is aligned */
  18 };
  19
  20 int main1 ()
  21 {
  22   int i,j;
  23   struct test1 tmp1;
  24
  25   /* 1. unaligned */
  26   for (i = 0; i < N; i++)
  27     {
  28       tmp1.a.n[1][2][i] = 5;
  29     }
  30
  31   /* check results:  */
  32   for (i = 0; i <N; i++)
  33     {
  34       if (tmp1.a.n[1][2][i] != 5)
  35         abort ();
  36     }
  37
  38   /* 2. aligned */
  39   for (i = 3; i < N-1; i++)
  40     {
  41       tmp1.a.n[1][2][i] = 6;
  42     }
  43
  44   /* check results:  */
  45   for (i = 3; i < N-1; i++)
  46     {
  47       if (tmp1.a.n[1][2][i] != 6)
  48         abort ();
  49     }
  50
  51   /* 3. aligned */
  52   for (i = 0; i < N; i++)
  53     {
  54       tmp1.e.n[1][2][i] = 7;
  55     }
  56
  57   /* check results:  */
  58   for (i = 0; i < N; i++)
  59     {
  60       if (tmp1.e.n[1][2][i] != 7)
  61         abort ();
  62     }
  63
  64   /* 4. unaligned */
  65   for (i = 3; i < N-3; i++)
  66     {
  67       tmp1.e.n[1][2][i] = 8;
  68     }
  69
  70   /* check results:  */
  71   for (i = 3; i <N-3; i++)
  72     {
  73       if (tmp1.e.n[1][2][i] != 8)
  74         abort ();
  75     }
  76
  77   return 0;
  78 }
  79
  80 int main (void)
  81 {
  82   check_vect ();
  83
  84   return main1 ();
  85 }
  86
  87 /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" } } */
  88 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  89 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 2 "vect" } } */
  90 /* { dg-final { cleanup-tree-dump "vect" } } */