gcc/testsuite/gcc.target/powerpc/sse4_1-pblendw-2.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 #include "sse4_1-check.h"
   8
   9 #include <smmintrin.h>
  10 #include <string.h>
  11
  12 #define NUM 20
  13
  14 #undef MASK
  15 #define MASK 0xfe
  16
  17 static void
  18 init_pblendw (short *src1, short *src2)
  19 {
  20   int i, sign = 1;
  21
  22   for (i = 0; i < NUM * 8; i++)
  23     {
  24       src1[i] = i * i * sign;
  25       src2[i] = (i + 20) * sign;
  26       sign = -sign;
  27     }
  28 }
  29
  30 static int
  31 check_pblendw (__m128i *dst, short *src1, short *src2)
  32 {
  33   short tmp[8];
  34   int j;
  35
  36   memcpy (&tmp[0], src1, sizeof (tmp));
  37   for (j = 0; j < 8; j++)
  38     if ((MASK & (1 << j)))
  39       tmp[j] = src2[j];
  40
  41   return memcmp (dst, &tmp[0], sizeof (tmp));
  42 }
  43
  44 static void
  45 sse4_1_test (void)
  46 {
  47   __m128i x, y;
  48   union
  49     {
  50       __m128i x[NUM];
  51       short s[NUM * 8];
  52     } dst, src1, src2;
  53   union
  54     {
  55       __m128i x;
  56       short s[8];
  57     } src3;
  58   int i;
  59
  60   init_pblendw (src1.s, src2.s);
  61
  62   /* Check pblendw imm8, m128, xmm */
  63   for (i = 0; i < NUM; i++)
  64     {
  65       dst.x[i] = _mm_blend_epi16 (src1.x[i], src2.x[i], MASK);
  66       if (check_pblendw (&dst.x[i], &src1.s[i * 8], &src2.s[i * 8]))
  67         abort ();
  68     }
  69
  70    /* Check pblendw imm8, xmm, xmm */
  71   src3.x = _mm_setzero_si128 ();
  72
  73   x = _mm_blend_epi16 (dst.x[2], src3.x, MASK);
  74   y = _mm_blend_epi16 (src3.x, dst.x[2], MASK);
  75
  76   if (check_pblendw (&x, &dst.s[16], &src3.s[0]))
  77     abort ();
  78
  79   if (check_pblendw (&y, &src3.s[0], &dst.s[16]))
  80     abort ();
  81 }