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--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -252,15 +252,6 @@ set(AVX2_OPT OFF)
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set(FMA_OPT OFF)
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set(SSE41_OPT OFF)
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set(MARCH_NATIVE_OPT OFF)
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-foreach(flag ${_enable_vector_unit_list}) # from OptimizeForArchitecture()
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- string(TOUPPER "${flag}" flag)
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- string(REPLACE "\." "_" flag "${flag}")
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- set(simd_flags "${simd_flags} -D${flag}")
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- string(REPLACE "_" "" flag "${flag}")
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- if("${flag}" MATCHES "AVX|AVX2|FMA|SSE41")
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- set("${flag}_OPT" ON)
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- endif()
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-endforeach(flag)
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if (NOT MSVC)
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set(MARCH_NATIVE_FLAGS "${MARCH_NATIVE_FLAGS} -O3 -ffast-math")
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endif()
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