gcc/testsuite/gcc.target/i386/sse2-maskmovdqu.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse2 } */
   3 /* { dg-options "-O2 -msse2" } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse2-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse2_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 #include <emmintrin.h>
  16
  17 #ifndef MASK
  18 #define MASK 0x7986
  19 #endif
  20
  21 #define mask_v(pos) (((MASK & (0x1 << (pos))) >> (pos)) << 7)
  22
  23 void static
  24 TEST (void)
  25 {
  26   __m128i src, mask;
  27   char s[16] = { 1,-2,3,-4,5,-6,7,-8,9,-10,11,-12,13,-14,15,-16 };
  28   char m[16];
  29
  30   char u[20] = { 0 };
  31   int i;
  32
  33   for (i = 0; i < 16; i++)
  34     m[i] = mask_v (i);
  35
  36   src = _mm_loadu_si128 ((__m128i *)s);
  37   mask = _mm_loadu_si128 ((__m128i *)m);
  38
  39   _mm_maskmoveu_si128 (src, mask, u+3);
  40
  41   for (i = 0; i < 16; i++)
  42     if (u[i+3] != (m[i] ? s[i] : 0))
  43       abort ();
  44 }