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Simon Peyton Jones authored
* Undoes Max's very aggressive function-inlining change (see comments with Trac #6048) * Resticts function application discount to functions that occur just once in the body. It was the multiple occurrences that led to the exponential behavour in Trac #6048. See Note [Function application discount] in CoreUnfold. Module binary sizes are down 2% on average, which is good. Allocations wobble about a bit, but only on a few benchmarks and not by much, so it seems a price worth paying to avoid exponential behaviour! Allocs Min -1.2% Max +2.8% Geometric Mean +0.0%
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