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GH-50503: [Parquet] Remove SVE128 unpack #50611

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GH-50503: [Parquet] Remove SVE128 unpack #50611

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a6e5065
Remove SVE128 path
AntoinePrv Jul 23, 2026
3458a70
Run CI
AntoinePrv Jul 23, 2026
e84d38f
Rerun
AntoinePrv Jul 24, 2026
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1 change: 0 additions & 1 deletion cpp/src/arrow/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -588,7 +588,6 @@ append_runtime_avx2_src(ARROW_UTIL_SRCS util/byte_stream_split_internal_avx2.cc)
append_runtime_avx2_src(ARROW_UTIL_SRCS util/bpacking_simd_256.cc)
append_runtime_avx512_src(ARROW_UTIL_SRCS util/bpacking_simd_avx512.cc)

append_runtime_sve128_src(ARROW_UTIL_SRCS util/bpacking_simd_128_alt.cc)
append_runtime_sve256_src(ARROW_UTIL_SRCS util/bpacking_simd_256.cc)

if(ARROW_WITH_BROTLI)
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1 change: 0 additions & 1 deletion cpp/src/arrow/util/bpacking.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,6 @@ struct UnpackDynamicFunction {
return std::array{
ARROW_DISPATCH_TARGET_NONE(&bpacking::unpack_scalar<Uint>) //
ARROW_DISPATCH_TARGET_NEON(&bpacking::unpack_neon<Uint>) //
ARROW_DISPATCH_TARGET_SVE128(&bpacking::unpack_sve128<Uint>) //
ARROW_DISPATCH_TARGET_SVE256(&bpacking::unpack_sve256<Uint>) //
ARROW_DISPATCH_TARGET_SSE4_2(&bpacking::unpack_sse4_2<Uint>) //
ARROW_DISPATCH_TARGET_AVX2(&bpacking::unpack_avx2<Uint>) //
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5 changes: 0 additions & 5 deletions cpp/src/arrow/util/bpacking_benchmark.cc
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Expand Up @@ -206,11 +206,6 @@ BENCHMARK_UNPACK_ALL_TYPES_RUNTIME(Avx512Unaligned, false, bpacking::unpack_avx5
BENCHMARK_UNPACK_ALL_TYPES(NeonUnaligned, false, bpacking::unpack_neon);
#endif

#if defined(ARROW_HAVE_RUNTIME_SVE128)
BENCHMARK_UNPACK_ALL_TYPES_RUNTIME(Sve128Unaligned, false, bpacking::unpack_sve128,
SVE128, "Sve128 not available");
#endif

#if defined(ARROW_HAVE_RUNTIME_SVE256)
BENCHMARK_UNPACK_ALL_TYPES_RUNTIME(Sve256Unaligned, false, bpacking::unpack_sve256,
SVE256, "Sve256 not available");
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51 changes: 0 additions & 51 deletions cpp/src/arrow/util/bpacking_simd_128_alt.cc
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This file was deleted.

28 changes: 0 additions & 28 deletions cpp/src/arrow/util/bpacking_simd_internal.h
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Expand Up @@ -53,34 +53,6 @@ extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128<uint64_t>(
#endif // UNPACK_ARCH128
#undef UNPACK_ARCH128

#if defined(ARROW_HAVE_RUNTIME_SVE128)
# define UNPACK_ARCH128_ALT unpack_sve128
#endif

#if defined(UNPACK_ARCH128_ALT)

template <typename Uint>
ARROW_EXPORT void UNPACK_ARCH128_ALT(const uint8_t* in, Uint* out,
const UnpackOptions& opts);

extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128_ALT<bool>( //
const uint8_t* in, bool* out, const UnpackOptions& opts);

extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128_ALT<uint8_t>(
const uint8_t* in, uint8_t* out, const UnpackOptions& opts);

extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128_ALT<uint16_t>(
const uint8_t* in, uint16_t* out, const UnpackOptions& opts);

extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128_ALT<uint32_t>(
const uint8_t* in, uint32_t* out, const UnpackOptions& opts);

extern template ARROW_TEMPLATE_EXPORT void UNPACK_ARCH128_ALT<uint64_t>(
const uint8_t* in, uint64_t* out, const UnpackOptions& opts);

#endif // UNPACK_ARCH128_ALT
#undef UNPACK_ARCH128_ALT

#if defined(ARROW_HAVE_SVE256) || defined(ARROW_HAVE_RUNTIME_SVE256)
# define UNPACK_ARCH256 unpack_sve256
#elif defined(UNPACK_ARCH256) || defined(ARROW_HAVE_RUNTIME_AVX2)
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9 changes: 0 additions & 9 deletions cpp/src/arrow/util/bpacking_test.cc
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Expand Up @@ -301,15 +301,6 @@ TYPED_TEST(TestUnpack, UnpackAvx512) {
TYPED_TEST(TestUnpack, UnpackNeon) { this->TestAll(&bpacking::unpack_neon<TypeParam>); }
#endif

#if defined(ARROW_HAVE_RUNTIME_SVE128)
TYPED_TEST(TestUnpack, UnpackSve128) {
if (!CpuInfo::GetInstance()->IsSupported(CpuInfo::SVE128)) {
GTEST_SKIP() << "Test requires SVE128";
}
this->TestAll(&bpacking::unpack_sve128<TypeParam>);
}
#endif

#if defined(ARROW_HAVE_RUNTIME_SVE256)
TYPED_TEST(TestUnpack, UnpackSve256) {
if (!CpuInfo::GetInstance()->IsSupported(CpuInfo::SVE256)) {
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