Issues · Glasgow Haskell Compiler / GHC · GitLab

semantics of concurrent program depends on -O level, -f[no-]omit-yields

#15975 · opened Nov 29, 2018 by waldmann@imn.htwk-leipzig.de Research needed P::normal RTS Trac import bug incorrect runtime result 5
- 2
updated Nov 14, 2019
conversion from Integer to Double rounds differently depending on the value

#15926 · opened Nov 21, 2018 by drvirgilio Research needed P::normal Trac import bug 5
- 0
updated Jul 07, 2019
Ideas for a better GHCi editing experience

#15887 · opened Nov 11, 2018 by Anchpop Research needed P::high Trac import feature request 7
- CLOSED
- 5
updated Jul 07, 2019
GHCi: Segmentation fault Data.List.sum large number

#15634 · opened Sep 12, 2018 by ksallberg Research needed GHCi P::normal Trac import bug runtime crash 5
- 10
updated Jul 07, 2019
Investigate Haskell rewrite of testsuite driver

#15575 · opened Aug 29, 2018 by Tobias Dammers Research needed P::normal Trac import task testsuite 5
- 2
updated Mar 19, 2020
Implement minimumOn, maximumOn to mirror sortOn

#15566 · opened Aug 25, 2018 by Gabriel Garcia Research needed P::normal Trac import core libraries feature request 5
- 6
updated Jul 07, 2019
Binary crashes under dtrace

#15543 · opened Aug 20, 2018 by Last G Research needed P::normal Trac import bug runtime crash 5
- 2
updated Dec 25, 2019
Fix unknown symbols/addresses in perf output

#15501 · opened Aug 10, 2018 by Last G Research needed P::normal Trac import bug code generation debug information 5
- 1
updated Jul 07, 2019
Data type with phantoms using TypeInType isn't coercible

#15441 · opened Jul 26, 2018 by glittershark Research needed P::normal Trac import bug roles 5
- 5
updated Jul 07, 2019
Weak pointers to static objects are sometimes not detected as unreachable

#15417 · opened Jul 19, 2018 by Ömer Sinan Ağacan Research needed P::normal RTS Trac import bug 5
- 1
updated Jul 07, 2019
Nursery size adulterates cachegrind metrics in nofib

#15333 · opened Jul 02, 2018 by Sebastian Graf Research needed P::normal Trac import bug info needed nofib 5
- CLOSED
- 9
updated Jan 14, 2020
Better Interaction Between Specialization and GND

#15151 · opened May 14, 2018 by Andrew Martin Research needed P::normal Trac import deriving feature request 5
- 4
updated Jul 07, 2019
Type synonyms with hidden, determined type variables

#15008 · opened Apr 06, 2018 by Joachim Breitner Research needed P::normal Trac import feature request 5
- CLOSED
- 7
updated Jul 07, 2019
ghc-8.2.1 installation fails on OpenBSD 6.0

#14044 · opened Jul 27, 2017 by romanzolotarev Research needed P::normal Trac import bug 5
- 4
updated Jul 07, 2019
ghc-8.2.1 installation fails on OpenBSD 6.1

#14041 · opened Jul 27, 2017 by romanzolotarev Research needed P::normal Trac import bug 5
- CLOSED
- 9
updated Jul 07, 2019
test dynamic-paper for way profasm fails with Simplifier ticks exhausted

#13715 · opened May 17, 2017 by george.colpitts Research needed P::normal Trac import bug compiler crash simplifier 5
- 8
updated Jul 07, 2019
Giving Backpack a Promotion

#13149 · opened Jan 18, 2017 by Edward Z. Yang Research needed P::low Trac import backpack broken test task typechecker 3
- 4
updated Nov 27, 2019
internal error: evacuate: strange closure type

#12043 · opened May 11, 2016 by mattchan Research needed P::normal Trac import bug 5
- CLOSED
- 6
updated Jul 07, 2019
Representation of value set abstractions as trees causes performance issues

#11528 · opened Feb 02, 2016 by Georgios Karachalias Research needed P::low Trac import compiler perf pattern match warnings task 0
- CLOSED
- 3
- 2
updated Sep 16, 2019
large performance regression in type checker speed in 7.8

#9198 · opened Jun 12, 2014 by Carter Schonwald Research needed P::normal Trac import bug compiler perf typechecker 5
- 12
updated Jul 07, 2019