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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 20
  • Closed 18
  • All 38
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight
  • Premature Evalutation when using -O
    #148 · opened Jun 10, 2003 by remit   5   Pnormal Trac import bug demand analysis
    • CLOSED
    • 1
    updated Mar 26, 2020
  • Inconsistency in demand analysis
    #5775 · opened Jan 14, 2012 by rl@cse.unsw.edu.au   8.4.1   7   Phigh Trac import bug demand analysis
    • CLOSED
    • 18
    updated Mar 06, 2020
  • Mechanism for checking that we only enter single-entry thunks once
    #10613 · opened Jul 08, 2015 by Ben Gamari   5   Pnormal Trac import demand analysis feature request
    • 22
    updated Nov 23, 2020
  • Entered absent arg in a Repa program
    #11126 · opened Nov 23, 2015 by tuplanolla   9.2.1   7   Phigh Trac import bug demand analysis incorrect runtime result
    • 20
    updated Jan 23, 2021
  • DmdAnal punishes free variables compared to static argument encoding
    #14816 · opened Feb 16, 2018 by David Feuer   5   Pnormal Trac import bug demand analysis runtime perf
    • 16
    updated Dec 07, 2020
  • Abortion of fixed-point iteration in Demand Analyser discards sound results
    #16284 · opened Feb 04, 2019 by Sebastian Graf   ⊥   5   Pnormal Trac import demand analysis runtime perf task
    • 0
    updated Jul 24, 2019
  • Don't trim sum CPR information
    #16570 · opened Apr 11, 2019 by Sebastian Graf   CPR analysis demand analysis task
    • 1
    • 7
    updated Jan 21, 2021
  • Investigate encoding recursive demand types
    #17128 · opened Aug 28, 2019 by Sebastian Graf   ⊥   5   CPR analysis Plow demand analysis runtime perf task
    • 2
    updated Jun 07, 2020
  • Performance regression in base64-bytestring caused by dmd-anal regression.
    #17653 · opened Jan 10, 2020 by Andreas Klebinger   8.10.1   10   Phigh bug demand analysis runtime perf
    • CLOSED
    • 5
    • 24
    updated Feb 02, 2021
  • IO hack in demand analysis should apply in more situations
    #17676 · opened Jan 13, 2020 by Sebastian Graf   demand analysis feature request
    • CLOSED
    • 3
    • 7
    updated Feb 02, 2021
  • Silly worker/wrapper split
    #17932 · opened Mar 19, 2020 by Simon Peyton Jones   Pnormal bug demand analysis simplifier
    • CLOSED
    • 2
    • 4
    updated Jan 18, 2021
  • Some places in the compiler assume arity of an `Id` is the same as the depth of its `StrictSig`
    #17999 · opened Apr 02, 2020 by Sebastian Graf   Arity and eta expansion demand analysis
    • 1
    updated Apr 03, 2020
  • unsafePerformIO makes bottoming actions appear non-bottoming
    #18086 · opened Apr 22, 2020 by Ben Gamari   demand analysis task
    • CLOSED
    • 7
    • 19
    updated Feb 18, 2021
  • Seemingly inconsistent divergence results from CPR and demand analyses
    #18095 · opened Apr 24, 2020 by Ben Gamari   CPR analysis Pnormal bug demand analysis runtime perf
    • CLOSED
    • 1
    • 14
    updated Feb 18, 2021
  • Allow a wrapper with up to more than `-fmax-worker-args` parameters when the number of parameters wouldn't change
    #18122 · opened Apr 30, 2020 by Sebastian Graf   demand analysis feature request
    • CLOSED
    • 3
    • 1
    • 12
    updated May 26, 2020
  • UnsatFun test case fails on HEAD with quick build flavour
    #18192 · opened May 15, 2020 by Ryan Scott   broken test demand analysis
    • CLOSED
    • 7
    updated May 19, 2020
  • Explore alternatives to the state hack
    #18238 · opened May 26, 2020 by Sebastian Graf   The state hack demand analysis task
    • 11
    updated Feb 16, 2021
  • Do Cast (and strictness?) WW for functions with stable unfoldings
    #18242 · opened May 27, 2020 by Sebastian Graf   demand analysis simplifier task
    • 0
    updated Dec 01, 2020
  • Improve trimming of DmdAnal results using findTypeShape.
    #18349 · opened Jun 17, 2020 by Andreas Klebinger   9.2.1   Pnormal bug demand analysis runtime perf
    • 5
    updated Jan 23, 2021
  • Give (some) known-key Ids like `noinline` a special demand transformer
    #18396 · opened Jun 26, 2020 by Sebastian Graf   demand analysis task
    • 1
    updated Jul 05, 2020
  • Remove "-fdmd-tx-dict-sel" flag.
    #18429 · opened Jul 06, 2020 by Andreas Klebinger   8.14.1   Pnormal demand analysis task
    • CLOSED
    • 2
    • 2
    updated Jul 23, 2020
  • Error 'Oops! Entered absent arg' when building code with -O2
    #18638 · opened Sep 02, 2020 by Dmitrii Kovanikov   demand analysis needs triage
    • CLOSED
    • 7
    updated Feb 12, 2021
  • Join point wrapper not inlined
    #18815 · opened Oct 07, 2020 by Sebastian Graf   demand analysis needs triage simplifier
    • CLOSED
    • 3
    updated Oct 19, 2020
  • DmdAnal: Cardinalitites in nested product demands should apply relatively
    #18885 · opened Oct 25, 2020 by Sebastian Graf   demand analysis task
    • 1
    • 11
    updated Dec 10, 2020
  • DmdAnal: Speed up the first demand analysis run by not recording used-once information
    #18886 · opened Oct 25, 2020 by Sebastian Graf   demand analysis task
    • 2
    updated Nov 08, 2020
  • DmdAnal: Annotate top-level bindings
    #18894 · opened Oct 27, 2020 by Sebastian Graf   Arity and eta expansion demand analysis task
    • CLOSED
    • 2
    • 5
    updated Jan 25, 2021
  • DmdAnal: Interleaved demand representation for expressive strictness information
    #18903 · opened Oct 29, 2020 by Sebastian Graf   demand analysis needs triage
    • CLOSED
    • 3
    • 22
    updated Dec 14, 2020
  • DmdAnal: Don't reduce trivial product demands to polymorphic counterparts
    #18907 · opened Oct 30, 2020 by Sebastian Graf   demand analysis task
    • 1
    • 12
    updated Feb 10, 2021
  • Demand analysis: `seq`'s strictness signature says its first argument is not head-used
    #18957 · opened Nov 16, 2020 by Sebastian Graf   Pnormal bug demand analysis
    • CLOSED
    • 2
    • 8
    updated Nov 20, 2020
  • DmdAnal: LetUp doesn't `keepAliveDmdEnv` RULE FVs
    #18971 · opened Nov 20, 2020 by Sebastian Graf   demand analysis task
    • CLOSED
    • 1
    • 1
    updated Jan 15, 2021
  • DmdAnal and WorkWrap should support unboxing constructors with existentials (or even GADTs)
    #18982 · opened Nov 24, 2020 by Sebastian Graf   demand analysis
    • CLOSED
    • 2
    • 2
    updated Dec 23, 2020
  • WorkWrap should eliminate unlifted absent coercions
    #18983 · opened Nov 24, 2020 by Sebastian Graf   demand analysis
    • 5
    updated Feb 25, 2021
  • Always simplify call demands
    #19005 · opened Nov 27, 2020 by Sebastian Graf   demand analysis feature request
    • CLOSED
    • 1
    updated Dec 15, 2020
  • Demand: "Better" syntax for demand signatures
    #19016 · opened Dec 01, 2020 by Sebastian Graf   demand analysis task
    • 2
    • 7
    updated Feb 23, 2021
  • Refactor Demand lattice so that it has less semantic equalities
    #19050 · opened Dec 10, 2020 by Sebastian Graf   Pnormal bug demand analysis
    • 3
    updated Dec 14, 2020
  • Lack of sharing in `GHC.Types.Demand`
    #19190 · opened Jan 08, 2021 by Matthew Pickering   Pnormal bug compiler perf demand analysis
    • 1
    • 1
    • 5
    updated Feb 03, 2021
  • GHC.Core.Opt.WorkWrap.Utils.mkWWargs should transfer one-shot-ness to wrapper args
    #19306 · opened Feb 03, 2021 by Sebastian Graf   demand analysis runtime perf task
    • 1
    updated Feb 16, 2021
  • DynFlags is reboxed in $wwarnAboutOverflowedOverLit
    #19407 · opened Feb 20, 2021 by Matthew Pickering   Pnormal bug compiler perf demand analysis
    • 11
    updated Feb 22, 2021