MinReg.h

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// MinReg.h:
// -------------------
//

#ifndef __IPSDKUTIL_INSTRUCTIONSET_REDUCTION_DETAIL_SSE2_MINREG_H__
#define __IPSDKUTIL_INSTRUCTIONSET_REDUCTION_DETAIL_SSE2_MINREG_H__

#include <IPSDKUtil/IPSDKUtilExports.h>
#include <IPSDKUtil/InstructionSet/cast.h>
#include <IPSDKUtil/InstructionSet/unload.h>
#include <IPSDKUtil/Tools/ForceInline.h>

namespace ipsdk {
namespace simd {
namespace detail {
namespace reduction {


template <typename T>
struct MinReg<eInstructionSet::eIS_Sse2, T>
{
    static IPSDK_FORCEINLINE
    T
    act(const typename Sse2Type<T>::Type& in)
    {
        const int nbElts = 16 / sizeof(T);
        T unloaded[nbElts];
        UnloadReg<eInstructionSet::eIS_Sse2, T>::act(in, unloaded);
        T tmin = unloaded[0];
        for(int i=1; i<nbElts; ++i) {
            tmin = (unloaded[i] < tmin ? unloaded[i] : tmin);
        }
        return tmin;
    }
};


} // end of namespace reduction
} // end of namespace detail
} // end of namespace simd
} // end of namespace ipsdk

#endif // __IPSDKUTIL_INSTRUCTIONSET_REDUCTION_DETAIL_SSE2_MINREG_H__