gcc/testsuite/gcc.target/i386/sse2-psraw-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   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 #define N 0xb
  14
  15 #include CHECK_H
  16
  17 #include <emmintrin.h>
  18
  19 static __m128i
  20 __attribute__((noinline, unused))
  21 test (__m128i s1)
  22 {
  23   return _mm_srai_epi16 (s1, N);
  24 }
  25
  26 static void
  27 TEST (void)
  28 {
  29   union128i_w u, s;
  30   short e[8] = {0};
  31   int i;
  32
  33   s.x = _mm_set_epi16 (1, -2, 3, 4, -5, 6, 0x7000, 0x9000);
  34
  35   u.x = test (s.x);
  36
  37   if (N < 16)
  38     for (i = 0; i < 8; i++)
  39       e[i] = s.a[i] >> N;
  40
  41   if (check_union128i_w (u, e))
  42     abort ();
  43 }