Enable link time optimization #53
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Changes: - CMakeLists.txt: Add LUA_ENABLE_LTO option with safety flags - Uses -fno-strict-aliasing to handle type punning - Uses -ffat-lto-objects to reduce LTO aggressiveness - Default: OFF (LTO currently doesn't work) - GC code fixes for LTO: - gc_core.cpp: Handle VUPVAL, strings in getgclist() - gc_weak.cpp: Remove duplicate getgclist(), use GCCore version - Documentation: - docs/LTO_STATUS.md: Comprehensive LTO status report - Details issues found, root cause analysis, path forward Status: LTO exposes undefined behavior in the codebase - Corrupted type values (0xab) - Memory corruption in GC - Tests fail immediately with LTO enabled - Tests pass normally without LTO Recommendation: Do not enable LTO until UB is fixed
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Changes:
CMakeLists.txt: Add LUA_ENABLE_LTO option with safety flags
GC code fixes for LTO:
Documentation:
Status: LTO exposes undefined behavior in the codebase
Recommendation: Do not enable LTO until UB is fixed