Issues · Glasgow Haskell Compiler / GHC · GitLab

ghc-8.10.2 uses a lot of memory

#18859 · opened Oct 17, 2020 by John Ky Phigh bug compiler perf
- 5
updated Oct 22, 2020
VarSet/NameSet/UniqSet/... are not great for use cases where we only add elements and check for membership.

#18818 · opened Oct 07, 2020 by Andreas Klebinger compiler perf needs triage task
- 1
updated Oct 07, 2020
CmmSink takes 30% of compile-time in T3294

#18814 · opened Oct 07, 2020 by Ben Gamari Pnormal bug code generation compiler perf
- 4
updated Oct 07, 2020
Called-arity analysis can be quite slow

#18789 · opened Oct 01, 2020 by Ben Gamari Phigh bug compiler perf
- 5
updated Oct 08, 2020
Extremely high memory usage in linking of cubix package with optimisation

#18787 · opened Oct 01, 2020 by Ben Gamari Phigh bug compiler perf
- 1
- 6
updated Oct 01, 2020
Simplifier ticks exhausted on mapM/traverse

#18730 · opened Sep 21, 2020 by Akshay Mankar 9.0.1 Phigh compiler perf ghc build failure simplifier
- 8
updated Oct 13, 2020
Compile time regression with StrictData on GHC 8.10.2

#18698 · opened Sep 16, 2020 by dbeacham Phigh bug compiler perf
- 6
updated Oct 26, 2020
Low-hanging(?) optimization fruit

#18541 · opened Aug 05, 2020 by Richard Eisenberg compiler perf task
- 4
- 21
updated Sep 11, 2020
Improve perf in substitution

#18535 · opened Aug 04, 2020 by Simon Peyton Jones compiler perf task
- 5
updated Sep 17, 2020
Orphan specializations are pruned much too aggressively

#18532 · opened Aug 04, 2020 by Alexis King Pnormal bug compiler perf specialisation
- 3
updated Sep 30, 2020
The flattener is very slow

#18502 · opened Jul 27, 2020 by Simon Peyton Jones compiler perf constraint solver
- 0
updated Aug 13, 2020
ghc 8.8.3 with llvm 9, instead of 8.6.5 with llvm 6 sometimes OOM on arm

#18475 · opened Jul 18, 2020 by Dimitri John Ledkov ARM LLVM backend Pnormal bug compiler crash compiler perf
- 1
updated Jul 22, 2020
Investigate inlining sweetspot for Generics with `-fdicts-strict`

#18450 · opened Jul 14, 2020 by Andreas Klebinger compiler perf runtime perf
- 6
updated Oct 12, 2020
Try -XMonoLocalBinds in GHC for compile-time performance improvements

#18430 · opened Jul 07, 2020 by Sebastian Graf compiler perf task
- 1
- 3
updated Sep 03, 2020
Suboptimal constraint solving

#18413 · opened Jul 02, 2020 by Simon Peyton Jones compiler perf constraint solver task typechecker
- 4
updated Oct 27, 2020
Follow-up from "WIP: Make UniqFM typed on it's key" 0 of 1 task completed

#18387 · opened Jun 24, 2020 by Andreas Klebinger 8.14.1 compiler perf task
- 2
updated Jul 05, 2020
Improve compiler performance

#18354 · opened Jun 18, 2020 by Simon Peyton Jones compiler perf task
- 0
updated Jul 31, 2020
Compiling tagsoup with optimizations loops infinitely on HEAD

#18304 · opened Jun 06, 2020 by Ryan Scott Phighest bug compiler perf
- 1
- 16
updated Jun 27, 2020
Check eta-expansion in the compiler

#18202 · opened May 19, 2020 by Sylvain Henry Arity and eta expansion The state hack compiler perf
- 2
- 13
updated Aug 24, 2020
ghc 8.8.3 uses 25-30% more time and memory to derive instances with -XDerivingVia

#18077 · opened Apr 20, 2020 by chris.parks DerivingVia Pnormal bug compiler perf
- 5
updated Apr 26, 2020

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