Phase out hardening flags hurting startup; add three perf wins#2

Merged

Sam Gammon (sgammon) merged 6 commits intomainfrom

claude/improve-compiler-flags-2sKV8

May 6, 2026

Commits on May 6, 2026

chore: phase out hardening flags hurting startup; add three perf wins
Claude (claude)
committed
ci: add probe + cross-platform clang-22 workflow; address Copilot review
Claude (claude)
committed
ci: harden toolchain install for arm64 runners
Claude (claude)
committed
ci+arm64: drop strict BTI/PAC link flags; harden darwin install assertions
Claude (claude)
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ci(darwin): install brew lld separately; symlink ld64.lld next to clang
Claude (claude)
committed
ci(darwin): tighten Apple-clang detector; was false-positive on triple
Claude (claude)
committed