old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-cast-1.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 64
   7
   8 unsigned char uX[N] __attribute__ ((__aligned__(16)));
   9 unsigned short uresult[N];
  10 signed char X[N] __attribute__ ((__aligned__(16)));
  11 short result[N];
  12
  13 int
  14 foo1(int len) {
  15   int i;
  16
  17   for (i=0; i<len; i++) {
  18     uresult[i] = (unsigned short)uX[i];
  19   }
  20 }
  21
  22 int
  23 foo2(int len) {
  24   int i;
  25
  26   for (i=0; i<len; i++) {
  27     result[i] = (short)X[i];
  28   }
  29 }
  30
  31 int main (void)
  32 {
  33   int i;
  34
  35   check_vect ();
  36
  37   for (i=0; i<N; i++) {
  38     X[i] = 16-i;
  39     uX[i] = 16-i;
  40   }
  41
  42   foo1 (N);
  43
  44   for (i=0; i<N; i++) {
  45     if (uresult[i] != (unsigned short)uX[i])
  46       abort ();
  47   }
  48
  49   foo2 (N);
  50
  51   for (i=0; i<N; i++) {
  52     if (result[i] != (short)X[i])
  53       abort ();
  54   }
  55
  56   return 0;
  57 }
  58
  59 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target powerpc*-*-* } } } */
  60 /* { dg-final { cleanup-tree-dump "vect" } } */
  61