gcc/testsuite/gcc.dg/vect/vect-multitypes-9.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 short uresult[N];
  10 signed char X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  11 short result[N];
  12
  13 /* Unsigned type promotion (qi->hi) */
  14 __attribute__ ((noinline)) int
  15 foo1(int len) {
  16   int i;
  17
  18   for (i=0; i<len; i++) {
  19     uresult[i] = (unsigned short)uX[i];
  20   }
  21 }
  22
  23 /* Signed type promotion (qi->hi) */
  24 __attribute__ ((noinline)) int
  25 foo2(int len) {
  26   int i;
  27
  28   for (i=0; i<len; i++) {
  29     result[i] = (short)X[i];
  30   }
  31 }
  32
  33 int main (void)
  34 {
  35   int i;
  36
  37   check_vect ();
  38
  39   for (i=0; i<N; i++) {
  40     X[i] = 16-i;
  41     uX[i] = 16-i;
  42     __asm__ volatile ("");
  43   }
  44
  45   foo1 (N);
  46
  47   for (i=0; i<N; i++) {
  48     if (uresult[i] != (unsigned short)uX[i])
  49       abort ();
  50   }
  51
  52   foo2 (N);
  53
  54   for (i=0; i<N; i++) {
  55     if (result[i] != (short)X[i])
  56       abort ();
  57   }
  58
  59   return 0;
  60 }
  61
  62 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target vect_unpack } } } */
  63