cpp-compiler-flags
C++ compiler/linker flag guidance for Serial Studio's build (GCC, Clang, AppleClang, MSVC cl.exe, clang-cl, MinGW, IntelLLVM). Use when reading, changing, or reasoning about the cmake flag modules (Optimization/Hardening/Sanitizers/MiMalloc), tuning -O/-march/LTO/PGO, adding a per-toolchain branch, debugging a flag that one compiler rejects, or explaining what a flag does. Encodes this repo's actual flag layout and its non-negotiable invariants (IEEE-stable math, Lua unwind tables, x86-64-v2 baseline, the two-stage PGO flow). It does NOT build, configure, or run cmake -- the developer does that.
SKILL.md
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