(arrow) branch main updated: GH-49327: [Python][Packaging] Use ARROW_SIMD_LEVEL=NEON for macOS arm64 (#50181)

[kou]

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kou pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/arrow.git


The following commit(s) were added to refs/heads/main by this push:
     new c0dc6c5d4e GH-49327: [Python][Packaging] Use ARROW_SIMD_LEVEL=NEON for 
macOS arm64 (#50181)
c0dc6c5d4e is described below

commit c0dc6c5d4e96466f85b387ef0803b21da96fb413
Author: Raúl Cumplido <raulcumpl...@gmail.com>
AuthorDate: Tue Jun 16 02:31:04 2026 +0200

    GH-49327: [Python][Packaging] Use ARROW_SIMD_LEVEL=NEON for macOS arm64 
(#50181)
    
    ### Rationale for this change
    
    Currently macOS arm64 wheels are trying to set `ARROW_SIMD_LEVEL=SSE4_2`
    
    ### What changes are included in this PR?
    
    Set `ARROW_SIMD_LEVEL` to `SSE4_2` or `NEON` based on architecture
    
    ### Are these changes tested?
    
    Via archery
    
    ### Are there any user-facing changes?
    
    No but macOS wheels will use the SIMD optimizations.
    
    * GitHub Issue: #49327
    
    Authored-by: Raúl Cumplido <raulcumpl...@gmail.com>
    Signed-off-by: Sutou Kouhei <k...@clear-code.com>
---
 ci/scripts/python_wheel_macos_build.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ci/scripts/python_wheel_macos_build.sh 
b/ci/scripts/python_wheel_macos_build.sh
index 31395e26c2..e5a13b3757 100755
--- a/ci/scripts/python_wheel_macos_build.sh
+++ b/ci/scripts/python_wheel_macos_build.sh
@@ -39,8 +39,10 @@ export SDKROOT=${SDKROOT:-$(xcrun --sdk macosx 
--show-sdk-path)}
 
 if [ $arch = "arm64" ]; then
   export CMAKE_OSX_ARCHITECTURES="arm64"
+  : ${ARROW_SIMD_LEVEL:="NEON"}
 elif [ $arch = "x86_64" ]; then
   export CMAKE_OSX_ARCHITECTURES="x86_64"
+  : ${ARROW_SIMD_LEVEL:="SSE4_2"}
 else
   echo "Unexpected architecture: $arch"
   exit 1
@@ -68,7 +70,6 @@ echo "=== (${PYTHON_VERSION}) Building Arrow C++ libraries 
==="
 : ${PARQUET_REQUIRE_ENCRYPTION:=ON}
 : ${ARROW_SUBSTRAIT:=ON}
 : ${ARROW_S3:=ON}
-: ${ARROW_SIMD_LEVEL:="SSE4_2"}
 : ${ARROW_TENSORFLOW:=ON}
 : ${ARROW_WITH_BROTLI:=ON}
 : ${ARROW_WITH_BZ2:=ON}