1 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
2 /* { dg-options "-O1 -msse2" } */
3 /* { dg-require-effective-target sse2 } */
7 void ConvertFloatSSE (void *inBuff, void *outBuff, int len)
9 unsigned char *inByteBuffer = reinterpret_cast < unsigned char *>(inBuff);
10 float *outFloatBuffer = reinterpret_cast < float *>(outBuff);
12 for (int i = 0; i < len / 4; i++)
15 _mm_set_epi8 (*inByteBuffer, *(inByteBuffer + 1),
16 *(inByteBuffer + 2), 0,
17 *(inByteBuffer + 3), *(inByteBuffer + 4),
18 *(inByteBuffer + 5), 0,
19 *(inByteBuffer + 6), *(inByteBuffer + 7),
20 *(inByteBuffer + 8), 0,
21 *(inByteBuffer + 9), *(inByteBuffer + 10),
22 *(inByteBuffer + 11), 0);
23 __m128i register2 = _mm_srai_epi32 (register1, 8);
24 __m128 register3 = _mm_cvtepi32_ps (register2);
26 _mm_store_ps (outFloatBuffer, register3);