On 09/23/2017 11:46 PM, user1234 wrote:
"if (__ctfe) {}" is a test happening at runtime. Both the if and the else branches got compiled, this implies:
- more code to cache
- slower code
just to allow CTFE.

__ctfe is a constant, though. Any half-decent optimizer will throw away the path that's not taken. dmd does it even without the optimization flag -O.

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