[Speex-dev] SSE2 code won't compile in VC

[John Ridges]

Jean-Marc,

At least VS2005 (what I'm using) won't compile resample_sse.h with 
_USE_SSE2 defined because it refuses to cast __m128 to __m128d and vice 
versa. While there are intrinsics to do the casts, I thought it would be 
simpler to just use an intrinsic that accomplishes the same thing 
without all the casting. Thanks,

--John


@@ -91,7 +91,7 @@ static inline double inner_product_double(const float 
*a, const float *b, unsign
       sum = _mm_add_pd(sum, _mm_cvtps_pd(t));
       sum = _mm_add_pd(sum, _mm_cvtps_pd(_mm_movehl_ps(t, t)));
    }
-   sum = _mm_add_sd(sum, (__m128d) _mm_movehl_ps((__m128) sum, (__m128) 
sum));
+   sum = _mm_add_sd(sum, _mm_unpackhi_pd(sum, sum));
    _mm_store_sd(&ret, sum);
    return ret;
 }
@@ -120,7 +120,7 @@ static inline double 
interpolate_product_double(const float *a, const float *b,
   sum1 = _mm_mul_pd(f1, sum1);
   sum2 = _mm_mul_pd(f2, sum2);
   sum = _mm_add_pd(sum1, sum2);
-  sum = _mm_add_sd(sum, (__m128d) _mm_movehl_ps((__m128) sum, (__m128) 
sum));
+  sum = _mm_add_sd(sum, _mm_unpackhi_pd(sum, sum));
   _mm_store_sd(&ret, sum);
   return ret;
 }