Commit 6beea836 authored by Committed by Marge Bot
Make dynflag argument for withTiming pure.
19 times out of 20 we already have dynflags in scope. We could just always use `return dflags`. But this is in fact not free. When looking at some STG code I noticed that we always allocate a closure for this expression in the heap. Clearly a waste in these cases. For the other cases we can either just modify the callsite to get dynflags or use the _D variants of withTiming I added which will use getDynFlags under the hood.
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