https://rexai.top/en/tags/miscompilation/Recent content in Miscompilation on 梦兽编程Hugo -- 0.163.3en梦兽编程Fri, 07 Aug 2026 06:30:00 +0800https://rexai.top/en/languages/rust/2026-08-07-rust-1-97-1-miscompilation-fix/Fri, 07 Aug 2026 06:30:00 +0800https://rexai.top/en/languages/rust/2026-08-07-rust-1-97-1-miscompilation-fix/Rust 1.97.1 ships an emergency fix for a long-dormant LLVM miscompilation: 1.97.0 changed Option::None's stored tag from 2 to -1, which triggered a trunc nuw mis-optimization on x86/x64, crashing optimized builds with segfaults. Reproduced on Windows, upgrade guide inside