An optimizing compiler for C. https://git.richardqin.org/rcc-project/atom?h=master 2026-08-11T09:37:42Z 2026-08-11T09:37:42Z Richard-Qin-X richard.qin.001@gmail.com 2026-08-11T09:37:42Z urn:sha1:6a7b083f322f4ac47e58cbf9d4d5fd4d1f6fecd0 2026-08-01T19:37:46Z Richard-Qin-X richard.qin.001@gmail.com 2026-08-01T19:37:46Z urn:sha1:a8a9d7d926202450645deae872d4d9dc11d63215 Replace marker-based metadata operands with scoped references and inline DIExpression values. Add structured DILocation chains, instruction debug attachments, stack variable records, and entry values with unified verification, builder support, and deterministic cloning. 2026-08-01T10:17:33Z Richard-Qin-X richard.qin.001@gmail.com 2026-08-01T10:17:33Z urn:sha1:e0c77d80585428818c32886eb8c26755ea8ed159 Add monotonic MIR debug instruction numbers and structured value substitutions. Verify live number uniqueness, meta-instruction exclusion, substitution graph integrity, and target subregister references while preserving debug identities during cloning.