TFW you fight with distribution scripts and AppImage configuration for hours and finally discover that the reason why the built binaries are misbehaving is because the compiler produced invalid code with the default -O3 and everything works perfectly if manually forcing -O2.
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@jk
Nowadays problems with -O3 are way more rare than they used to be, but not completely out of the question.
-O3 is most often used by those who think architectures less common than x86_64 don't exist, in Void, which supports plenty of architectures, everything is built with -O2, which is a reasonable choice, I build stuff with -O3 when I do it myself, so I do notice when things start breaking 😅
