Issues · Glasgow Haskell Compiler / GHC · GitLab

Misfeature of Cmm optimiser: no way to extract a branch of expression into a separate statement

#5171 · opened May 06, 2011 by rtvd 8.0.1 3 Plow Trac import feature request runtime perf
- 5
updated Jul 07, 2019
Allow unicode sub/superscript symbols in operators

#5108 · opened Apr 12, 2011 by mikhail.vorozhtsov 8.0.1 5 Pnormal Trac import Unicode feature request parser
- 17
updated Jul 07, 2019
CPR optimisation for sum types if only one constructor is used

#5075 · opened Apr 01, 2011 by batterseapower 8.0.1 5 CPR analysis Pnormal Trac import feature request
- 1
- 34
updated Jan 21, 2021
Pragma to SPECIALISE on value arguments

#5059 · opened Mar 29, 2011 by batterseapower 8.0.1 3 Plow Trac import feature request static argument transformation
- 1
- 18
updated Jul 07, 2019
Warning about module abbreviation clashes

#4980 · opened Feb 24, 2011 by Lemming 8.0.1 3 Plow Trac import feature request
- 8
updated Jul 07, 2019
Warning about variables with leading underscore that are used anyway

#4959 · opened Feb 14, 2011 by Lemming 8.0.1 3 Plow Trac import error messages feature request parser
- 8
updated Jul 07, 2019
Remove indirections caused by sum types, such as Maybe

#4937 · opened Jan 31, 2011 by tibbe 8.0.1 5 Pnormal Trac import feature request
- 20
updated Jul 07, 2019
Make event tracing conditional on an RTS flag only

#4913 · opened Jan 21, 2011 by tibbe 8.0.1 3 Plow RTS Trac import feature request
- 6
updated Jul 07, 2019
Consider usage files in the GHCi recompilation check

#4900 · opened Jan 18, 2011 by cdsmith@twu.net 8.0.1 5 Pnormal Trac import feature request
- 82
updated Jul 07, 2019
Deprecate exports

#4879 · opened Jan 05, 2011 by basvandijk 8.6.1 5 Pnormal Trac import error messages feature request
- 31
updated Jul 07, 2019
Loop strength reduction for array indexing

#4823 · opened Dec 07, 2010 by tibbe 8.0.1 3 Plow Trac import feature request
- 6
updated Jul 07, 2019
Loop optimization: identical counters

#4470 · opened Nov 04, 2010 by choenerzs 8.0.1 5 Pnormal Trac import feature request
- 14
updated Jul 07, 2019
Polymorphic Data.Dynamic

#4459 · opened Oct 31, 2010 by vivian 8.0.1 3 GHC API Plow Trac import feature request linking
- 31
updated Jul 07, 2019
Allow specifying .hi files of imports on command line in batch mode

#4453 · opened Oct 29, 2010 by duncan 8.0.1 3 Plow Trac import feature request
- 4
updated Jul 07, 2019
GHC.Conc modifyTVar primitive

#4329 · opened Sep 21, 2010 by dmbarbour 8.0.1 3 Plow STM Trac import concurrency core libraries feature request
- 6
updated Jul 07, 2019
Interactive "do" notation in GHCi

#4316 · opened Sep 15, 2010 by mitar 8.0.1 3 GHCi Plow Trac import feature request
- 43
updated Jul 07, 2019
Relax restrictions on type family instance overlap

#4259 · opened Aug 16, 2010 by lilac 8.0.1 5 Pnormal Trac import feature request injective type families typechecker
- 32
updated Jul 07, 2019
Template Haskell lets you reify supposedly-abstract data types

#4222 · opened Jul 26, 2010 by Simon Peyton Jones 8.0.1 3 Plow Trac import feature request
- 7
updated Jul 07, 2019
New primops for indexing: index*OffAddrUsing# etc

#4096 · opened May 25, 2010 by Simon Peyton Jones 8.0.1 3 Plow Trac import feature request
- 8
updated Oct 20, 2020
Two sided sections

#4052 · opened May 07, 2010 by aavogt 8.0.1 3 Plow Trac import feature request
- 8
updated Jul 07, 2019