Shanon Jackson ShanonJackson
ShanonJackson
/ lexer.c
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July 22, 2026 23:40
x86_64 AMD ZEN 3 Lexing JS at 5-7GB/S (Just boundary finding + tokenization) - Purposely excludes some things for demonstration purposes.
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| /* | |
| * SIMD JavaScript/TypeScript lexer for x86-64 AVX2, tuned for AMD Zen 3 <<< IMPORTANT | |
| * | |
| * CccLex L = {0}; | |
| * uint8_t *buf = ccc_source_alloc(n); // 64-byte aligned, 64B zero-padded | |
| * memcpy(buf, bytes, n); | |
| * size_t ntok = ccc_lex(&L, buf, n); // tokens: L.starts[i], L.kinds[i] | |
| * ccc_source_free(buf); | |
| * ccc_free(&L); | |
| * |
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