This blog post is specifically talking about 32-bit x86 C++ ABI, which was notoriously not zero-cost wrt exceptions even on success-only code paths. Lessons learned from that went into the Itanium C++ exceptions ABI based on static unwind maps, which has been adopted by basically every other architecture except for Windows, which has its own take (that is still zero-cost).
Huh? It’s for skylake which works imply x64 no? I doubt Daniel Lenore is running 32 but code given his background of focusing on applying AVX everywhere which requires x64. X64 uses itanium exception handling.
OP was ambiguous, he means that the article "The Cost of Enabling Exception Handling" that was linked only applies to Windows x86, not to Windows AMD64 or the Itanium ABI.
The Itanium ABI and 64-bit Windows have near-zero cost when exceptions aren't thrown.
