gcc/testsuite/gcc.target/i386/sse5-hsubX.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse5 } */
   3 /* { dg-options "-O2 -msse5" } */
   4
   5 #include "sse5-check.h"
   6
   7 #include <bmmintrin.h>
   8 #include <string.h>
   9
  10 #define NUM 10
  11
  12 union
  13 {
  14   __m128i x[NUM];
  15   int8_t ssi[NUM * 16];
  16   int16_t si[NUM * 8];
  17   int32_t li[NUM * 4];
  18   int64_t lli[NUM * 2];
  19 } dst, res, src1;
  20
  21 static void
  22 init_sbyte ()
  23 {
  24   int i;
  25   for (i=0; i < NUM * 16; i++)
  26     src1.ssi[i] = i;
  27 }
  28
  29 static void
  30 init_sword ()
  31 {
  32   int i;
  33   for (i=0; i < NUM * 8; i++)
  34     src1.si[i] = i;
  35 }
  36
  37
  38 static void
  39 init_sdword ()
  40 {
  41   int i;
  42   for (i=0; i < NUM * 4; i++)
  43     src1.li[i] = i;
  44 }
  45
  46 static int
  47 check_sbyte2word ()
  48 {
  49   int i, j, s, t, check_fails = 0;
  50   for (i = 0; i < NUM * 16; i = i + 16)
  51     {
  52       for (j = 0; j < 8; j++)
  53         {
  54           t = i + (2 * j);
  55           s = (i / 2) + j;
  56           res.si[s] = src1.ssi[t] - src1.ssi[t + 1] ;
  57           if (res.si[s] != dst.si[s])
  58             check_fails++;
  59         }
  60     }
  61 }
  62
  63 static int
  64 check_sword2dword ()
  65 {
  66   int i, j, s, t, check_fails = 0;
  67   for (i = 0; i < (NUM * 8); i = i + 8)
  68     {
  69       for (j = 0; j < 4; j++)
  70         {
  71           t = i + (2 * j);
  72           s = (i / 2) + j;
  73           res.li[s] = src1.si[t] - src1.si[t + 1] ;
  74           if (res.li[s] != dst.li[s])
  75             check_fails++;
  76         }
  77     }
  78 }
  79
  80 static int
  81 check_dword2qword ()
  82 {
  83   int i, j, s, t, check_fails = 0;
  84   for (i = 0; i < (NUM * 4); i = i + 4)
  85     {
  86       for (j = 0; j < 2; j++)
  87         {
  88           t = i + (2 * j);
  89           s = (i / 2) + j;
  90           res.lli[s] = src1.li[t] - src1.li[t + 1] ;
  91           if (res.lli[s] != dst.lli[s])
  92             check_fails++;
  93         }
  94     }
  95 }
  96
  97 static void
  98 sse5_test (void)
  99 {
 100   int i;
 101
 102   /* Check hsubbw */
 103   init_sbyte ();
 104
 105   for (i = 0; i < NUM; i++)
 106     dst.x[i] = _mm_hsubw_epi8 (src1.x[i]);
 107
 108   if (check_sbyte2word())
 109   abort ();
 110
 111
 112   /* Check hsubwd */
 113   init_sword ();
 114
 115   for (i = 0; i < (NUM ); i++)
 116     dst.x[i] = _mm_hsubd_epi16 (src1.x[i]);
 117
 118   if (check_sword2dword())
 119     abort ();
 120
 121    /* Check hsubdq */
 122   init_sdword ();
 123     for (i = 0; i < NUM; i++)
 124     dst.x[i] = _mm_hsubq_epi32 (src1.x[i]);
 125
 126   if (check_dword2qword())
 127     abort ();
 128 }