gcc/testsuite/gcc.target/arm/pr48252.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target arm_neon_hw } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-add-options arm_neon } */
   5
   6 #include "arm_neon.h"
   7 #include <stdlib.h>
   8
   9 int main(void)
  10 {
  11     uint8_t v1_init[8] = {1, 1, 1, 1, 1, 1, 1, 1};
  12     uint8_t v2_init[8] = {2, 2, 2, 2, 2, 2, 2, 2};
  13     uint8x8_t v1 = vld1_u8 (v1_init);
  14     uint8x8_t v2 = vld1_u8 (v2_init);
  15     uint8x8x2_t vd1, vd2;
  16     union {uint8x8_t v; uint8_t buf[8];} d1, d2, d3, d4;
  17     int i;
  18
  19     vd1 = vzip_u8(v1, vdup_n_u8(0));
  20     vd2 = vzip_u8(v2, vdup_n_u8(0));
  21
  22     vst1_u8(d1.buf, vd1.val[0]);
  23     vst1_u8(d2.buf, vd1.val[1]);
  24     vst1_u8(d3.buf, vd2.val[0]);
  25     vst1_u8(d4.buf, vd2.val[1]);
  26
  27     for (i = 0; i < 8; i++)
  28       if ((i % 2 == 0 && d4.buf[i] != 2)
  29           || (i % 2 == 1 && d4.buf[i] != 0))
  30          abort ();
  31
  32     return 0;
  33 }