JohanMabille commented on code in PR #46963:
URL: https://github.com/apache/arrow/pull/46963#discussion_r2182950867
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cpp/cmake_modules/SetupCxxFlags.cmake:
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@@ -49,7 +49,7 @@ endif()
if(ARROW_CPU_FLAG STREQUAL "x86")
# x86/amd64 compiler flags, msvc/gcc/clang
if(MSVC)
- set(ARROW_SSE4_2_FLAG "")
+ set(ARROW_SSE4_2_FLAG "/arch:SSE4.2")
Review Comment:
```suggestion
set(ARROW_SSE4_2_FLAG "/d2archSSE42")
```
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