gcc/testsuite/gcc.dg/vect/slp-18.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_float } */
   3 /* { dg-require-effective-target vect_intfloat_cvt } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 8
   9
  10 int
  11 main1 ()
  12 {
  13   int i;
  14   unsigned int out[N*8], a0, a1, a2, a3, a4, a5, a6, a7, b1, b0, b2, b3, b4, b5, b6, b7;
  15   unsigned int in[N*8] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
  16   float out2[N*8];
  17
  18   for (i = 0; i < N; i++)
  19     {
  20
  21       a0 = in[i*8] + 5;
  22       a1 = in[i*8 + 1] + 6;
  23       a2 = in[i*8 + 2] + 7;
  24       a3 = in[i*8 + 3] + 8;
  25       a4 = in[i*8 + 4] + 9;
  26       a5 = in[i*8 + 5] + 10;
  27       a6 = in[i*8 + 6] + 11;
  28       a7 = in[i*8 + 7] + 12;
  29
  30       b0 = a0 * 3;
  31       b1 = a1 * 2;
  32       b2 = a2 * 12;
  33       b3 = a3 * 5;
  34       b4 = a4 * 8;
  35       b5 = a5 * 4;
  36       b6 = a6 * 3;
  37       b7 = a7 * 2;
  38
  39       out[i*8] = b0 - 2;
  40       out[i*8 + 1] = b1 - 3;
  41       out[i*8 + 2] = b2 - 2;
  42       out[i*8 + 3] = b3 - 1;
  43       out[i*8 + 4] = b4 - 8;
  44       out[i*8 + 5] = b5 - 7;
  45       out[i*8 + 6] = b6 - 3;
  46       out[i*8 + 7] = b7 - 7;
  47
  48
  49       out2[i*8] = (float) b0;
  50       out2[i*8 + 1] = (float) b1;
  51       out2[i*8 + 2] = (float) b2;
  52       out2[i*8 + 3] = (float) b3;
  53       out2[i*8 + 4] = (float) b4;
  54       out2[i*8 + 5] = (float) b5;
  55       out2[i*8 + 6] = (float) b6;
  56       out2[i*8 + 7] = (float) b7;
  57   }
  58
  59   /* check results:  */
  60   for (i = 0; i < N; i++)
  61     {
  62       if (out[i*8] !=  (in[i*8] + 5) * 3 - 2
  63          || out[i*8 + 1] != (in[i*8 + 1] + 6) * 2 - 3
  64          || out[i*8 + 2] != (in[i*8 + 2] + 7) * 12 - 2
  65          || out[i*8 + 3] != (in[i*8 + 3] + 8) * 5 - 1
  66          || out[i*8 + 4] != (in[i*8 + 4] + 9) * 8 - 8
  67          || out[i*8 + 5] != (in[i*8 + 5] + 10) * 4 - 7
  68          || out[i*8 + 6] != (in[i*8 + 6] + 11) * 3 - 3
  69          || out[i*8 + 7] != (in[i*8 + 7] + 12) * 2 - 7)
  70         abort ();
  71
  72       if (out2[i*8] != (float) ((in[i*8] + 5) * 3)
  73          || out2[i*8 + 1] != (float) ((in[i*8 + 1] + 6) * 2)
  74          || out2[i*8 + 2] != (float) ((in[i*8 + 2] + 7) * 12)
  75          || out2[i*8 + 3] != (float) ((in[i*8 + 3] + 8) * 5)
  76          || out2[i*8 + 4] != (float) ((in[i*8 + 4] + 9) * 8)
  77          || out2[i*8 + 5] != (float) ((in[i*8 + 5] + 10) * 4)
  78          || out2[i*8 + 6] != (float) ((in[i*8 + 6] + 11) * 3)
  79          || out2[i*8 + 7] != (float) ((in[i*8 + 7] + 12) * 2))
  80         abort ();
  81     }
  82
  83   return 0;
  84 }
  85
  86 int main (void)
  87 {
  88   check_vect ();
  89
  90   main1 ();
  91
  92   return 0;
  93 }
  94
  95 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_strided8 } } } */
  96 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target vect_strided8 } } } */
  97