IIRC one of the authors of llvm claimed an overall 5%-10% speed increase in the generated code when compiling using llvm (which I personally think sounds almost too good) as compared to gcc. And yes, I’ve seen claims of better optimized code generation but I’ve yet to confirm it for myself (actually if anyone has some benchmarks or some such it would be very interesting). – “Anybody had any better luck? There has been claims that llvm-gcc produces code faster than vanilla gcc.”ĪFAIK llvm-gcc just uses gcc as a front end, the code optimization is all done by llvm.
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