.. that's why you compile without LTO during development and do a final 'compile... | Hacker News

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jorvi on April 25, 2025 | parent | context | favorite | on: Exploiting Undefined Behavior in C/C++ Programs: T...

.. that's why you compile without LTO during development and do a final 'compile with LTO > profile > fix / optimize > compile with LTO' pass.

Compilation happens once and then runs on hundreds of thousands up to billions of devices. Respect your users.

astrange on April 25, 2025 [–]

This assumes that LTO is strictly better than no-LTO, ie only gets faster, has the same optimization hotspots, and doesn't break anything.

I would recommend only doing things that fit within the 'build > text > fix' loop.

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