refactor: bgz17_bridge.rs fully rewired to crate::simd::I32x16 Zero raw _mm512_/_mm256_/_mm_ intrinsics remaining. All 5 kernels rewired (92 intrinsics → 0): L1 distance: from_i16_slice → sub → abs → reduce_sum L1 weighted: same + from_array(WEIGHT_VEC) → mul Sign agreement: from_i16_slice → xor → cmpge_zero_mask XOR bind: from_i16_slice → xor → to_i16_array Inject noise: from_i16_slice → add → simd_min/max → to_i16_array AVX2 2-pass patterns collapsed: polyfill I32x16 absorbs the split internally (array-backed [i32; 16] on AVX2, native __m512i on AVX-512). LazyLock runtime dispatch preserved. #[target_feature] preserved. Scalar fallbacks untouched. 19/19 bgz17_bridge tests pass. 1514/1515 full suite pass (1 pre-existing timing flake in vml.rs). https://claude.ai/code/session_01ChLvBfpJS8dQhHxRD4pYNp#78
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target-cpu=x86-64-v4: native AVX-512, all SIMD inlined, no LazyLock overhead. ~24% faster than portable build. ONLY for AVX-512 hardware. Select Dockerfile.avx512 in Railway dashboard for server deployment. Default Dockerfile stays portable (AVX2 CI, LazyLock dispatch). https://claude.ai/code/session_01ChLvBfpJS8dQhHxRD4pYNp
Zero raw _mm512_/_mm256_/_mm_ intrinsics remaining. All 5 kernels rewired (92 intrinsics → 0): L1 distance: from_i16_slice → sub → abs → reduce_sum L1 weighted: same + from_array(WEIGHT_VEC) → mul Sign agreement: from_i16_slice → xor → cmpge_zero_mask XOR bind: from_i16_slice → xor → to_i16_array Inject noise: from_i16_slice → add → simd_min/max → to_i16_array AVX2 2-pass patterns collapsed: polyfill I32x16 absorbs the split internally (array-backed [i32; 16] on AVX2, native __m512i on AVX-512). LazyLock runtime dispatch preserved. #[target_feature] preserved. Scalar fallbacks untouched. 19/19 bgz17_bridge tests pass. 1514/1515 full suite pass (1 pre-existing timing flake in vml.rs). https://claude.ai/code/session_01ChLvBfpJS8dQhHxRD4pYNp
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