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Barinzaya
9d40f371be
This uses compile-time features to decide how large of a SIMD vector to use. It currently has checks for amd64/i386 to size its vectors for SSE2/AVX2/AVX512 as necessary. The generalized SIMD functions could also be useful for multiversioning of the hash procs, to allow for run-time dispatch based on available CPU features.
14 lines
421 B
Odin
14 lines
421 B
Odin
#+build amd64, i386
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package xxhash
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import "base:intrinsics"
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@(private="file") SSE2_FEATURES :: "sse2"
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@(private="file") AVX2_FEATURES :: "avx2"
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@(private="file") AVX512_FEATURES :: "avx512dq,evex512"
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XXH_NATIVE_WIDTH :: min(XXH_MAX_WIDTH,
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8 when intrinsics.has_target_feature(AVX512_FEATURES) else
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4 when intrinsics.has_target_feature(AVX2_FEATURES) else
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2 when intrinsics.has_target_feature(SSE2_FEATURES) else 1)
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