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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-O1 -msse2" } */
/* { dg-require-effective-target sse2 } */
#include <xmmintrin.h>
void ConvertFloatSSE (void *inBuff, void *outBuff, int len)
{
unsigned char *inByteBuffer = reinterpret_cast < unsigned char *>(inBuff);
float *outFloatBuffer = reinterpret_cast < float *>(outBuff);
for (int i = 0; i < len / 4; i++)
{
__m128i register1 =
_mm_set_epi8 (*inByteBuffer, *(inByteBuffer + 1),
*(inByteBuffer + 2), 0,
*(inByteBuffer + 3), *(inByteBuffer + 4),
*(inByteBuffer + 5), 0,
*(inByteBuffer + 6), *(inByteBuffer + 7),
*(inByteBuffer + 8), 0,
*(inByteBuffer + 9), *(inByteBuffer + 10),
*(inByteBuffer + 11), 0);
__m128i register2 = _mm_srai_epi32 (register1, 8);
__m128 register3 = _mm_cvtepi32_ps (register2);
_mm_store_ps (outFloatBuffer, register3);
outFloatBuffer += 4;
inByteBuffer += 12;
}
}
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