gcc/testsuite/gcc.target/powerpc/sse4_1-pblendvb.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -mvsx -Wno-psabi" } */
   3 /* { dg-additional-options "-mdejagnu-cpu=power8" { target { ! has_arch_pwr8 } } } */
   4 /* { dg-require-effective-target p8vector_hw } */
   5
   6 #define NO_WARN_X86_INTRINSICS 1
   7 #ifndef CHECK_H
   8 #define CHECK_H "sse4_1-check.h"
   9 #endif
  10
  11 #ifndef TEST
  12 #define TEST sse4_1_test
  13 #endif
  14
  15 #include CHECK_H
  16
  17 #include <smmintrin.h>
  18 #include <string.h>
  19
  20 #define NUM 20
  21
  22 static void
  23 init_pblendvb (unsigned char *src1, unsigned char *src2,
  24                unsigned char *mask)
  25 {
  26   int i, sign = 1;
  27
  28   for (i = 0; i < NUM * 16; i++)
  29     {
  30       src1[i] = i* i * sign;
  31       src2[i] = (i + 20) * sign;
  32       mask[i] = (i % 3) + ((i * (14 + sign))
  33                            ^ (src1[i] | src2[i] | (i*3)));
  34       sign = -sign;
  35     }
  36 }
  37
  38 static int
  39 check_pblendvb (__m128i *dst, unsigned char *src1,
  40                 unsigned char *src2, unsigned char *mask)
  41 {
  42   unsigned char tmp[16];
  43   int j;
  44
  45   memcpy (&tmp[0], src1, sizeof (tmp));
  46   for (j = 0; j < 16; j++)
  47     if (mask [j] & 0x80)
  48       tmp[j] = src2[j];
  49
  50   return memcmp (dst, &tmp[0], sizeof (tmp));
  51 }
  52
  53 static void
  54 TEST (void)
  55 {
  56   union
  57     {
  58       __m128i x[NUM];
  59       unsigned char c[NUM * 16];
  60     } dst, src1, src2, mask;
  61   int i;
  62
  63   init_pblendvb (src1.c, src2.c, mask.c);
  64
  65   for (i = 0; i < NUM; i++)
  66     {
  67       dst.x[i] = _mm_blendv_epi8 (src1.x[i], src2.x[i], mask.x[i]);
  68       if (check_pblendvb (&dst.x[i], &src1.c[i * 16], &src2.c[i * 16],
  69                           &mask.c[i * 16]))
  70         abort ();
  71     }
  72 }