gcc/testsuite/gcc.dg/vect/vect-70.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "--param vect-max-peeling-for-alignment=0 -fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #if VECTOR_BITS > 128
   8 #define NINTS (VECTOR_BITS / 32)
   9 #else
  10 #define NINTS 4
  11 #endif
  12
  13 #define N (NINTS * 6)
  14
  15 /* Keep execution time down.  */
  16 #if N <= 24
  17 #define OUTERN N
  18 #else
  19 #define OUTERN NINTS
  20 #endif
  21
  22 struct s{
  23   int m;
  24   int n[4][4][N];
  25 };
  26
  27 struct test1{
  28   struct s a; /* array a.n is unaligned */
  29   int b;
  30   int c;
  31   struct s e[N]; /* array e.n is aligned */
  32 };
  33
  34 /* Avoid big local temporaries.  */
  35 #if NINTS > 8
  36 struct test1 tmp1;
  37 #endif
  38
  39 __attribute__ ((noinline))
  40 int main1 ()
  41 {
  42   int i,j;
  43 #if NINTS <= 8
  44   struct test1 tmp1;
  45 #endif
  46
  47   for (i = 0; i < OUTERN; i++)
  48     for (j = NINTS - 1; j < N - NINTS + 1; j++)
  49       {
  50         tmp1.e[i].n[1][2][j] = 8;
  51       }
  52
  53   /* check results:  */
  54   for (i = 0; i < OUTERN; i++)
  55 #pragma GCC novector
  56     for (j = NINTS - 1; j < N - NINTS + 1; j++)
  57     {
  58       if (tmp1.e[i].n[1][2][j] != 8)
  59           abort ();
  60     }
  61
  62   /* not consecutive, will use strided stores */
  63   for (i = 0; i < OUTERN; i++)
  64     for (j = NINTS - 1; j < N - NINTS + 1; j++)
  65       {
  66         tmp1.e[j].n[1][2][j] = 8;
  67       }
  68
  69   /* check results:  */
  70   for (i = 0; i < OUTERN; i++)
  71 #pragma GCC novector
  72     for (j = NINTS - 1; j < N - NINTS + 1; j++)
  73     {
  74       if (tmp1.e[j].n[1][2][j] != 8)
  75           abort ();
  76     }
  77
  78   return 0;
  79 }
  80
  81 int main (void)
  82 {
  83   check_vect ();
  84
  85   return main1 ();
  86 }
  87
  88 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
  89 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" {target {{! vector_alignment_reachable} && {! vect_hw_misalign} } } } } */
  90 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */