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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| include(CheckCSourceRuns) | ||
|
|
||
| set(AVX_CODE " | ||
| #include <immintrin.h> | ||
| int main() | ||
| { | ||
| __m256 a; | ||
| a = _mm256_set1_ps(0); | ||
| return 0; | ||
| } | ||
| ") | ||
|
|
||
| set(AVX512_CODE " | ||
| #include <immintrin.h> | ||
| int main() | ||
| { | ||
| __m512i a = _mm512_set_epi8(0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 0, 0, 0, 0, 0, 0, 0, 0); | ||
| __m512i b = a; | ||
| __mmask64 equality_mask = _mm512_cmp_epi8_mask(a, b, _MM_CMPINT_EQ); | ||
| return 0; | ||
| } | ||
| ") | ||
|
|
||
| set(AVX2_CODE " | ||
| #include <immintrin.h> | ||
| int main() | ||
| { | ||
| __m256i a = {0}; | ||
| a = _mm256_abs_epi16(a); | ||
| __m256i x; | ||
| _mm256_extract_epi64(x, 0); // we rely on this in our AVX2 code | ||
| return 0; | ||
| } | ||
| ") | ||
|
|
||
| set(FMA_CODE " | ||
| #include <immintrin.h> | ||
| int main() | ||
| { | ||
| __m256 acc = _mm256_setzero_ps(); | ||
| const __m256 d = _mm256_setzero_ps(); | ||
| const __m256 p = _mm256_setzero_ps(); | ||
| acc = _mm256_fmadd_ps( d, p, acc ); | ||
| return 0; | ||
| } | ||
| ") | ||
|
|
||
| macro(check_sse type flags) | ||
| set(__FLAG_I 1) | ||
| set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS}) | ||
| foreach (__FLAG ${flags}) | ||
| if (NOT ${type}_FOUND) | ||
| set(CMAKE_REQUIRED_FLAGS ${__FLAG}) | ||
| check_c_source_runs("${${type}_CODE}" HAS_${type}_${__FLAG_I}) | ||
| if (HAS_${type}_${__FLAG_I}) | ||
| set(${type}_FOUND TRUE CACHE BOOL "${type} support") | ||
| set(${type}_FLAGS "${__FLAG}" CACHE STRING "${type} flags") | ||
| endif() | ||
| math(EXPR __FLAG_I "${__FLAG_I}+1") | ||
| endif() | ||
| endforeach() | ||
| set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE}) | ||
|
|
||
| if (NOT ${type}_FOUND) | ||
| set(${type}_FOUND FALSE CACHE BOOL "${type} support") | ||
| set(${type}_FLAGS "" CACHE STRING "${type} flags") | ||
| endif() | ||
|
|
||
| mark_as_advanced(${type}_FOUND ${type}_FLAGS) | ||
| endmacro() | ||
|
|
||
| # flags are for MSVC only! | ||
| check_sse("AVX" " ;/arch:AVX") | ||
| if (NOT ${AVX_FOUND}) | ||
| set(LLAMA_AVX OFF) | ||
| else() | ||
| set(LLAMA_AVX ON) | ||
| endif() | ||
|
|
||
| check_sse("AVX2" " ;/arch:AVX2") | ||
| check_sse("FMA" " ;/arch:AVX2") | ||
| if ((NOT ${AVX2_FOUND}) OR (NOT ${FMA_FOUND})) | ||
| set(LLAMA_AVX2 OFF) | ||
| else() | ||
| set(LLAMA_AVX2 ON) | ||
| endif() | ||
|
|
||
| check_sse("AVX512" " ;/arch:AVX512") | ||
| if (NOT ${AVX512_FOUND}) | ||
| set(LLAMA_AVX512 OFF) | ||
| else() | ||
| set(LLAMA_AVX512 ON) | ||
| endif() |
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