gcc/testsuite/gcc.dg/vect/vect-multitypes-14.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__(__BIGGEST_ALIGNMENT__)));
   9 unsigned char uresultX[N];
  10 unsigned int uY[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  11 unsigned char uresultY[N];
  12
  13 /* Unsigned type demotion (si->qi) */
  14
  15 __attribute__ ((noinline)) int
  16 foo1(int len) {
  17   int i;
  18
  19   for (i=0; i<len; i++) {
  20     uresultX[i] = uX[i];
  21     uresultY[i] = (unsigned char)uY[i];
  22   }
  23 }
  24
  25 int main (void)
  26 {
  27   int i;
  28
  29   check_vect ();
  30
  31   for (i=0; i<N; i++) {
  32     uX[i] = 16-i;
  33     uY[i] = 16-i;
  34     __asm__ volatile ("");
  35   }
  36
  37   foo1 (N);
  38
  39 #pragma GCC novector
  40   for (i=0; i<N; i++) {
  41     if (uresultX[i] != uX[i])
  42       abort ();
  43     if (uresultY[i] != (unsigned char)uY[i])
  44       abort ();
  45   }
  46
  47   return 0;
  48 }
  49
  50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_pack_trunc } } } */
  51