pitrou commented on a change in pull request #8177:
URL: https://github.com/apache/arrow/pull/8177#discussion_r488807129
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File path: cpp/cmake_modules/SetupCxxFlags.cmake
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@@ -50,7 +50,7 @@ if(ARROW_CPU_FLAG STREQUAL "x86")
# skylake-avx512 consists of AVX512F,AVX512BW,AVX512VL,AVX512CD,AVX512DQ
set(ARROW_AVX512_FLAG "-march=skylake-avx512 -mbmi2")
# Append the avx2/avx512 subset option also, fix issue ARROW-9877 for
homebrew-cpp
- set(ARROW_AVX2_FLAG "${ARROW_AVX2_FLAG} -mavx2")
+ set(ARROW_AVX2_FLAG "${ARROW_AVX2_FLAG} -mavx2 -mbmi2")
Review comment:
What is your opinion on this @emkornfield ?
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