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Use intrinsics for cvRound on x86 and x86_64 __GNUC__ (clang/gcc linux) too.

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We've measured a 7x improvement in speed for `cvRound` using the intrinsic.
This commit is contained in:
Clement Courbet 2023-07-17 14:40:57 +02:00 committed by Alexander Smorkalov
parent 0052d46b8e
commit 3cce299a78
1 changed files with 2 additions and 2 deletions
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4
modules/core/include/opencv2/core/fast_math.hpp
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@ -201,7 +201,7 @@ cvRound( double value )
{
#if defined CV_INLINE_ROUND_DBL
CV_INLINE_ROUND_DBL(value);
#elif (defined _MSC_VER && defined _M_X64) && !defined(__CUDACC__)
#elif ((defined _MSC_VER && defined _M_X64) || (defined __GNUC__ && defined __SSE2__)) && !defined(__CUDACC__)
__m128d t = _mm_set_sd( value );
return _mm_cvtsd_si32(t);
#elif defined _MSC_VER && defined _M_IX86
@ -323,7 +323,7 @@ CV_INLINE int cvRound(float value)
{
#if defined CV_INLINE_ROUND_FLT
CV_INLINE_ROUND_FLT(value);
#elif (defined _MSC_VER && defined _M_X64) && !defined(__CUDACC__)
#elif ((defined _MSC_VER && defined _M_X64) || (defined __GNUC__ && defined __SSE2__)) && !defined(__CUDACC__)
__m128 t = _mm_set_ss( value );
return _mm_cvtss_si32(t);
#elif defined _MSC_VER && defined _M_IX86