Add 128-bit vector support - #80
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September 17, 2026 21:50
Platforms such as Apple Silicon use 128-bit ByteVector as the preferred species; rejecting that width broke ./gradlew test and made forced 256-bit runs very slow. Implement index128 with four 16-byte lanes per 64-byte block, aligned with simdjson ARM64 stage-1 (simd8x64). Add test128 to CI and check, and wire species-specific test tasks to the test classpath so test128/test256/test512 run the suite with the correct JVM flag. Signed-off-by: The-Alchemist <kap4020@gmail.com>
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Summary
org.simdjson.species=128and accept 128-bitpreferredvectors so parsing works on Apple Silicon and similar hardware (tested on M4)StructuralIndexer.index128()using four 16-byte lanes per 64-byte block (same layout as simdjson ARM64simd8x64stage-1).test128to testsFeedback welcome!