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  • #14687
Closed
Open
Created Jan 19, 2018 by Andreas Klebinger@AndreasKDeveloper

Investigate differences in Int-In/Outlining

In one case the numbers get floated out and in the others they stay in the alternative.

This results in one being compiled as a CAF while the other gets recreated on the heap.

{-# LANGUAGE MagicHash, BangPatterns, ScopedTypeVariables #-}

import GHC.Prim
import GHC.Exts

func :: Int# -> Int# -> Int
func 1# 1# = 10
func 1# 2# = 20

foo :: Int# -> Int# -> Int
foo 1# 1# = 30
foo 2# 1# = 40
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Version 8.2.2
Type Task
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
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