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Consider adding new stg_ap_* functions

Currently, the RTS has a fixed set of stg_ap_* functions. There are two problems with this:

  1. All programs pay for these functions, even programs that don’t use them. Furthermore, it is not possible for new ones to be generated by GHC for certain cases.
  2. The set included in the RTS may not be optimal.

(1) is a lot of work, but dealing with (2) should be “just” a matter of hunting down which functions would be useful. I would start with ByteString, Text, and other highly optimized libraries, some of which (such as ByteString) are very widely used.

Trac metadata
Trac field Value
Version 8.2.1
Type Task
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Runtime System
Test case
Differential revisions
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