gcc/testsuite/gcc.target/i386/fma-fnmsubXX.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target fma } */
   3 /* { dg-options "-O2 -mfma" } */
   4
   5 #include "fma-check.h"
   6
   7 #include <x86intrin.h>
   8 #include "m256-check.h"
   9
  10 void
  11 check_mm_fnmsub_sd (__m128d __A, __m128d __B, __m128d __C)
  12 {
  13   union128d a, b, c, e;
  14   a.x = __A;
  15   b.x = __B;
  16   c.x = __C;
  17   double d[2];
  18   int i;
  19   e.x = _mm_fnmsub_sd (__A, __B, __C);
  20   for (i = 1; i < 2; i++)
  21     {
  22       d[i] = a.a[i];
  23     }
  24   d[0] = -a.a[0] * b.a[0] - c.a[0];
  25   if (check_union128d (e, d))
  26     abort ();
  27 }
  28
  29 void
  30 check_mm_fnmsub_ss (__m128 __A, __m128 __B, __m128 __C)
  31 {
  32   union128 a, b, c, e;
  33   a.x = __A;
  34   b.x = __B;
  35   c.x = __C;
  36   float d[4];
  37   int i;
  38   e.x = _mm_fnmsub_ss (__A, __B, __C);
  39   for (i = 1; i < 4; i++)
  40     {
  41       d[i] = a.a[i];
  42     }
  43   d[0] = -a.a[0] * b.a[0] - c.a[0];
  44   if (check_union128 (e, d))
  45     abort ();
  46 }
  47
  48 void
  49 check_mm_fnmsub_ps (__m128 __A, __m128 __B, __m128 __C)
  50 {
  51   union128 a, b, c, e;
  52   a.x = __A;
  53   b.x = __B;
  54   c.x = __C;
  55   float d[4];
  56   int i;
  57   e.x = _mm_fnmsub_ps (__A, __B, __C);
  58   for (i = 0; i < 4; i++)
  59     {
  60       d[i] = -a.a[i] * b.a[i] - c.a[i];
  61     }
  62   if (check_union128 (e, d))
  63     abort ();
  64 }
  65
  66 void
  67 check_mm_fnmsub_pd (__m128d __A, __m128d __B, __m128d __C)
  68 {
  69   union128d a, b, c, e;
  70   a.x = __A;
  71   b.x = __B;
  72   c.x = __C;
  73   double d[2];
  74   int i;
  75   e.x = _mm_fnmsub_pd (__A, __B, __C);
  76   for (i = 0; i < 2; i++)
  77     {
  78       d[i] = -a.a[i] * b.a[i] - c.a[i];
  79     }
  80   if (check_union128d (e, d))
  81     abort ();
  82 }
  83
  84 static void
  85 fma_test (void)
  86 {
  87   union128 a[3];
  88   union128d b[3];
  89   int i, j;
  90   for (i = 0; i < 3; i++)
  91     {
  92       for (j = 0; j < 4; j++)
  93         a[i].a[j] = i * j + 3.5;
  94       for (j = 0; j < 2; j++)
  95         b[i].a[j] = i * j + 3.5;
  96     }
  97   check_mm_fnmsub_pd (b[0].x, b[1].x, b[2].x);
  98   check_mm_fnmsub_sd (b[0].x, b[1].x, b[2].x);
  99   check_mm_fnmsub_ps (a[0].x, a[1].x, a[2].x);
 100   check_mm_fnmsub_ss (a[0].x, a[1].x, a[2].x);
 101 }