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It's quite funny to hear somebody call for the reinvention of a field based on the quality of -O0 code.

Just get over yourself and pass -Os.

That'd be great but here is what Torvalds has to say about -Os

http://thread.gmane.org/gmane.linux.kernel/1927090/focus=192...

tl;dr - sometimes the smallest code being generated is slow and dumb

That's nothing compared to the -O0 crud that the GP was complaining about. It's also not a problem with the field of compiler design, but a (probably temporary) weakness in gcc.

(It is an interesting anecdote though.)

I think we should definitely reconsider how compilers are doing code generation, if by default they are generating far more code than necessary and need to use optimisation to make up for it.

The large volume of -O0 code is just a result of skipping register allocation to save compilation time. There's no problem here.

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