gcc/testsuite/gcc.target/i386/sse4_1-pmovsxwq.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O2 -msse4.1" } */
   4
   5 #include "sse4_1-check.h"
   6
   7 #include <smmintrin.h>
   8
   9 #define NUM 128
  10
  11 static void
  12 sse4_1_test (void)
  13 {
  14   union
  15     {
  16       __m128i x[NUM / 2];
  17       long long ll[NUM];
  18       short s[NUM * 4];
  19     } dst, src;
  20   int i, sign = 1;
  21
  22   for (i = 0; i < NUM; i++)
  23     {
  24       src.s[(i % 2) + (i / 2) * 8] = i * i * sign;
  25       sign = -sign;
  26     }
  27
  28   for (i = 0; i < NUM; i += 2)
  29     dst.x [i / 2] = _mm_cvtepi16_epi64 (src.x [i / 2]);
  30
  31   for (i = 0; i < NUM; i++)
  32     if (src.s[(i % 2) + (i / 2) * 8] != dst.ll[i])
  33       abort ();
  34 }