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Henrik RydgårdandClaude Opus 5
5d703b014e
CrossSIMD has four independent implementations and only one is compiled per machine, so each architecture has to check its own copy against hand-worked results. Running this under qemu gives us coverage of the targets we have no hardware for - it's already caught two LSX bugs. Covers Vec4S32 and Vec4F32 arithmetic, comparisons and the mask helpers, the lane accessors and shuffles, transpose, the various loads (including the 24-bit and normalizing ones), NaN/Inf handling, and the matrix routines the old test already had. Verified on three of the four implementations: NEON natively, the scalar fallback via TEST_FALLBACK, and LSX under qemu-loongarch64. SSE2 is left to CI. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>