gcc/testsuite/gcc.target/i386/sse4_1-dppd-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O2 -msse4.1" } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse4_1-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse4_1_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 #include <smmintrin.h>
  16
  17 #define lmskN  0x00
  18 #define lmsk0  0x01
  19 #define lmsk1  0x02
  20 #define lmsk01 0x03
  21
  22 #define hmskA  0x30
  23 #define hmsk0  0x10
  24 #define hmsk1  0x20
  25 #define hmsk01 0x30
  26 #define hmskN  0x00
  27
  28 #ifndef HIMASK
  29 #define HIMASK hmskA
  30 #endif
  31
  32 static void
  33 TEST (void)
  34 {
  35   union
  36     {
  37       __m128d x;
  38       double d[2];
  39     } val1, val2, res[4];
  40   int masks[4];
  41   int i, j;
  42
  43   val1.d[0] = 2.;
  44   val1.d[1] = 3.;
  45
  46   val2.d[0] = 10.;
  47   val2.d[1] = 100.;
  48
  49   res[0].x = _mm_dp_pd (val1.x, val2.x, HIMASK | lmskN);
  50   res[1].x = _mm_dp_pd (val1.x, val2.x, HIMASK | lmsk0);
  51   res[2].x = _mm_dp_pd (val1.x, val2.x, HIMASK | lmsk1);
  52   res[3].x = _mm_dp_pd (val1.x, val2.x, HIMASK | lmsk01);
  53
  54   masks[0] = HIMASK | lmskN;
  55   masks[1] = HIMASK | lmsk0;
  56   masks[2] = HIMASK | lmsk1;
  57   masks[3] = HIMASK | lmsk01;
  58
  59   for (i = 0; i < 4; i++)
  60     {
  61       double tmp = 0.;
  62
  63       for (j = 0; j < 2; j++)
  64         if (HIMASK & (0x10 << j))
  65           tmp = tmp + (val1.d[j] * val2.d[j]);
  66
  67       for (j = 0; j < 2; j++)
  68         if ((masks[i] & (1 << j)) && res[i].d[j] != tmp)
  69           abort ();
  70    }
  71 }