gcc/testsuite/gcc.dg/vect/slp-cond-2-big-array.c

   1 /* { dg-require-effective-target vect_cond_mixed } */
   2 /* { dg-require-effective-target vect_float } */
   3
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7 int d[N], e[N], f[N];
   8 unsigned char k[N];
   9 float a[N], b[N];
  10
  11 __attribute__((noinline, noclone)) void
  12 f1 (void)
  13 {
  14   int i;
  15   for (i = 0; i < N/4; i++)
  16     {
  17       k[4*i] = a[4*i] < b[4*i] ? 17 : 0;
  18       k[4*i+1] = a[4*i+1] < b[4*i+1] ? 17 : 0;
  19       k[4*i+2] = a[4*i+2] < b[4*i+2] ? 17 : 0;
  20       k[4*i+3] = a[4*i+3] < b[4*i+3] ? 17 : 0;
  21     }
  22 }
  23
  24 __attribute__((noinline, noclone)) void
  25 f2 (void)
  26 {
  27   int i;
  28   for (i = 0; i < N/2; ++i)
  29     {
  30       k[2*i] = a[2*i] < b[2*i] ? 0 : 24;
  31       k[2*i+1] = a[2*i+1] < b[2*i+1] ? 7 : 4;
  32     }
  33 }
  34
  35 __attribute__((noinline, noclone)) void
  36 f3 (void)
  37 {
  38   int i;
  39   for (i = 0; i < N/2; ++i)
  40     {
  41       k[2*i] = a[2*i] < b[2*i] ? 51 : 12;
  42       k[2*i+1] = a[2*i+1] > b[2*i+1] ? 51 : 12;
  43     }
  44 }
  45
  46 __attribute__((noinline, noclone)) void
  47 f4 (void)
  48 {
  49   int i;
  50   for (i = 0; i < N/2; ++i)
  51     {
  52       int d0 = d[2*i], e0 = e[2*i];
  53       int d1 = d[2*i+1], e1 = e[2*i+1];
  54       f[2*i] = a[2*i] >= b[2*i] ? d0 : e0;
  55       f[2*i+1] = a[2*i+1] >= b[2*i+1] ? d1 : e1;
  56     }
  57 }
  58
  59 int
  60 main ()
  61 {
  62   int i;
  63
  64   check_vect ();
  65
  66   for (i = 0; i < N; i++)
  67     {
  68       switch (i % 9)
  69         {
  70         case 0: asm (""); a[i] = - i - 1; b[i] = i + 1; break;
  71         case 1: a[i] = 0; b[i] = 0; break;
  72         case 2: a[i] = i + 1; b[i] = - i - 1; break;
  73         case 3: a[i] = i; b[i] = i + 7; break;
  74         case 4: a[i] = i; b[i] = i; break;
  75         case 5: a[i] = i + 16; b[i] = i + 3; break;
  76         case 6: a[i] = - i - 5; b[i] = - i; break;
  77         case 7: a[i] = - i; b[i] = - i; break;
  78         case 8: a[i] = - i; b[i] = - i - 7; break;
  79         }
  80       d[i] = i;
  81       e[i] = 2 * i;
  82     }
  83
  84   f1 ();
  85   for (i = 0; i < N; i++)
  86     if (k[i] != ((i % 3) == 0 ? 17 : 0))
  87       abort ();
  88
  89   f2 ();
  90   for (i = 0; i < N; i++)
  91     {
  92       switch (i % 9)
  93         {
  94         case 0:
  95         case 6:
  96           if (k[i] != ((i/9 % 2) == 0 ? 0 : 7))
  97             abort ();
  98           break;
  99         case 1:
 100         case 5:
 101         case 7:
 102           if (k[i] != ((i/9 % 2) == 0 ? 4 : 24))
 103             abort ();
 104           break;
 105         case 2:
 106         case 4:
 107         case 8:
 108           if (k[i] != ((i/9 % 2) == 0 ? 24 : 4))
 109             abort ();
 110           break;
 111         case 3:
 112           if (k[i] != ((i/9 % 2) == 0 ? 7 : 0))
 113             abort ();
 114           break;
 115         }
 116     }
 117
 118   f3 ();
 119
 120   f4 ();
 121   for (i = 0; i < N; i++)
 122     if (f[i] != ((i % 3) == 0 ? e[i] : d[i]))
 123       abort ();
 124
 125   return 0;
 126 }
 127
 128 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "vect" } } */