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Message: [QUOTE="blmblm, post: 4214989"] Hesitant though I am to argue with someone who generally seems far more expert than I am .... I don't get the impression at all that the OP wants a, b, and c evaluated in parallel. As I understand it, he just wants to be sure that there is no branching involved in the evaluation of the condition (a && b && c). I admit I don't have a clear understanding of the platform he's targeting, but it sounds like it somehow involves multiple processing elements [*] executing the same compiled code, and under those circumstances I can vaguely imagine that performance might be better if all these processing elements execute exactly the same instructions (i.e., no branches). [*] The ones that put the "MD" in "SIMD" is what I'm thinking here, though admittedly not with as much clarity as I might like. [/QUOTE]