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38 lines
915 B
38 lines
915 B
#include<simdconfig.h> |
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#include<simdfuncs.h> |
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#ifdef _MSC_VER |
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#include<intrin.h> |
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int sse3_available(void) { |
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return 1; |
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} |
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#else |
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#include<pmmintrin.h> |
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#include<cpuid.h> |
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#include<stdint.h> |
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#if defined(__APPLE__) |
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int sse3_available(void) { return 1; } |
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#else |
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int sse3_available(void) { |
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return __builtin_cpu_supports("sse3"); |
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} |
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#endif |
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#endif |
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void increment_sse3(float arr[4]) { |
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ALIGN_16 double darr[4]; |
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__m128d val1 = _mm_set_pd(arr[0], arr[1]); |
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__m128d val2 = _mm_set_pd(arr[2], arr[3]); |
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__m128d one = _mm_set_pd(1.0, 1.0); |
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__m128d result = _mm_add_pd(val1, one); |
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_mm_store_pd(darr, result); |
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result = _mm_add_pd(val2, one); |
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_mm_store_pd(&darr[2], result); |
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result = _mm_hadd_pd(val1, val2); /* This does nothing. Only here so we use an SSE3 instruction. */ |
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arr[0] = (float)darr[1]; |
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arr[1] = (float)darr[0]; |
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arr[2] = (float)darr[3]; |
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arr[3] = (float)darr[2]; |
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}
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