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Hi all, I'm not sure whether this can really help the middle-end and optimizers, and couldn't measure any performance gain on some generated executables, but I think it's worth doing nonetheless.
I doubt it will middle-end as most of time (at least on x86), the short-circuiting ones are converted back to the non short-circuiting ones if there is no side effects on both sides. So really you might end up slowing down the compiler :).
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