gcc/testsuite/gcc.dg/vect/vect-66.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 __attribute__ ((noinline))
  10 void main1 ()
  11 {
  12   int i, j;
  13   int ia[8][5][N+2];
  14
  15   /* Multidimensional array. Aligned. */
  16   for (i = 0; i < 16; i++)
  17     {
  18       for (j = 0; j < N; j++)
  19         {
  20            ia[2][6][j] = 5;
  21         }
  22     }
  23
  24   /* check results: */
  25   for (i = 0; i < 16; i++)
  26     {
  27 #pragma GCC novector
  28       for (j = 0; j < N; j++)
  29         {
  30            if (ia[2][6][j] != 5)
  31                 abort();
  32         }
  33     }
  34 }
  35
  36 __attribute__ ((noinline))
  37 void main2 ()
  38 {
  39   int i, j;
  40   int ia[8][5][N+2];
  41
  42   /* Multidimensional array. Aligned. */
  43   for (i = 0; i < 16; i++)
  44     {
  45       for (j = 0; j < N; j++)
  46            ia[3][6][j+2] = 5;
  47     }
  48
  49   /* check results: */
  50   for (i = 0; i < 16; i++)
  51     {
  52 #pragma GCC novector
  53       for (j = 2; j < N+2; j++)
  54         {
  55            if (ia[3][6][j] != 5)
  56                 abort();
  57         }
  58     }
  59 }
  60
  61 __attribute__ ((noinline))
  62 void main3 ()
  63 {
  64   int i, j;
  65   int ic[16][16][5][N+2];
  66
  67   /* Multidimensional array. Not aligned. */
  68   for (i = 0; i < 16; i++)
  69     {
  70       for (j = 0; j < N; j++)
  71         {
  72            ic[2][1][6][j+1] = 5;
  73         }
  74     }
  75
  76   /* check results: */
  77   for (i = 0; i < 16; i++)
  78     {
  79 #pragma GCC novector
  80       for (j = 0; j < N; j++)
  81         {
  82            if (ic[2][1][6][j+1] != 5)
  83                 abort();
  84         }
  85     }
  86 }
  87
  88 int main (void)
  89 {
  90   check_vect ();
  91
  92   main1 ();
  93   main2 ();
  94   main3 ();
  95
  96   return 0;
  97 }
  98
  99 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 3 "vect" } } */
 100 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */