Issues · Glasgow Haskell Compiler / GHC

New issue

nofib-analyze doesn’t provide per-benchmark compile time/alloc numbers

#9319 · opened Jul 16, 2014 by Joachim Breitner 5 Pnormal Trac import feature request nofib
- 1
updated Jul 07, 2019
Inlining regression/strangeness in 7.8

#9320 · opened Jul 16, 2014 by dolio 5 Pnormal Trac import bug runtime perf
- 4
updated Oct 07, 2020
Support for waiting on multiple MVars

#9321 · opened Jul 16, 2014 by schyler 5 Pnormal RTS Trac import feature request
- 11
updated Jul 07, 2019
MINIMAL pragma should supprt negation

#9328 · opened Jul 18, 2014 by lennart@augustsson.net 5 Pnormal Trac import feature request
- 2
updated Jul 07, 2019
Implement "instance chains"

#9334 · opened Jul 19, 2014 by Iavor S. Diatchki 5 Pnormal Trac import feature request typechecker
- 19
updated Jul 07, 2019
Branchless arithmetic operations

#9342 · opened Jul 21, 2014 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import code generation feature request
- 19
updated Oct 27, 2020
forkProcess does not acquire global handle locks

#9347 · opened Jul 22, 2014 by edsko@edsko.net 5 Pnormal RTS Trac import bug incorrect runtime result
- 3
updated Jul 07, 2019
excessive inlining due to state hack

#9349 · opened Jul 23, 2014 by rwbarton 5 Pnormal The state hack Trac import bug runtime perf
- 10
updated Jun 02, 2020
Consider using xchg instead of mfence for CS stores

#9350 · opened Jul 23, 2014 by tibbe 5 Pnormal Trac import feature request
- 3
updated Jul 07, 2019
add ability to version symbols .c for packages with C code

#9351 · opened Jul 23, 2014 by Sergei Trofimovich 5 Pnormal Trac import backpack feature request
- 5
updated Jul 07, 2019
Allow `State# s` argument/result types in `ccall` FFI imports

#9352 · opened Jul 23, 2014 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import feature request typechecker
- 12
updated Jul 07, 2019
prefetch primops are not currently useful

#9353 · opened Jul 23, 2014 by MikeIzbicki 8.0.1 5 Pnormal Trac import bug
- 18
updated Jan 14, 2020
Improve flag description in the user guide

#9358 · opened Jul 24, 2014 by Jan Stolarek 8.0.1 5 Pnormal Trac import bug documentation
- 23
updated Aug 31, 2020
GHCi (or haskeline?) confused by non-single-width characters

#9364 · opened Jul 25, 2014 by cheater 5 GHCi Pnormal Trac import bug
- 8
updated Jul 07, 2019
Make command key in GHCi configurable

#9365 · opened Jul 25, 2014 by cheater 5 GHCi Pnormal Trac import feature request
- 0
updated Jul 07, 2019
unfolding info as seen when building a module depends on flags in a previously-compiled module

#9370 · opened Jul 27, 2014 by Carter Schonwald 9.2.1 7 Phigh Trac import bug compiler perf
- 1
- 52
updated Jan 23, 2021
Investigate Static Argument Transformation

#9374 · opened Jul 28, 2014 by Jan Stolarek 0 Plow Trac import late lambda lifting task
- 39
updated Dec 20, 2020
More informative error messages when closed type families fail to simplify

#9376 · opened Jul 29, 2014 by MikeIzbicki 5 Pnormal Trac import bug feature request typechecker
- 7
updated Jul 07, 2019
GHCi cannot load .so in ./

#9386 · opened Jul 30, 2014 by Eric Crockett 5 GHCi Pnormal Trac import bug
- 12
updated Jul 07, 2019
Narrow the scope of the notorious "state hack"

#9388 · opened Jul 31, 2014 by Simon Peyton Jones 5 Pnormal Trac import bug
- 7
updated Jun 01, 2020
"\n" is displayed weirdly in error messages

#9392 · opened Aug 01, 2014 by Artyom.Kazak 3 Plow Trac import bug feature request
- 3
updated Jul 07, 2019
Make --show-iface more human readable

#9403 · opened Aug 03, 2014 by Edward Z. Yang 3 Plow Trac import task
- 1
updated Jul 07, 2019
unexpected failure for T7837(profasm)

#9406 · opened Aug 04, 2014 by jrp2014 5 Pnormal Trac import broken test bug incorrect runtime result profiling testsuite
- 5
updated Jul 07, 2019
Warnings about "INLINE binder is (non-rule) loop breaker"

#9418 · opened Aug 07, 2014 by Simon Peyton Jones 5 Pnormal Trac import bug error messages
- 5
updated Jul 07, 2019
Problems and workarounds when installing and using a 32bit GHC on 64bit Linux machine

#9421 · opened Aug 07, 2014 by Mikolaj Konarski 5 Pnormal Trac import bug
- 1
- 21
updated Jul 07, 2019
Do finer-grained dependency analysis to infer more general kinds on type/class declarations

#9427 · opened Aug 08, 2014 by Richard Eisenberg 5 CUSKs Pnormal Trac import bug
- 2
updated Mar 13, 2020
Alternative to type family Any

#9429 · opened Aug 10, 2014 by Mathieu Boespflug 5 Pnormal Trac import feature request
- 33
updated Jul 07, 2019
IncoherentInstances are too restricted

#9432 · opened Aug 11, 2014 by danilo2 7 Phigh Trac import feature request typechecker
- 8
updated Jul 07, 2019
GHC.List.reverse does not fuse

#9434 · opened Aug 12, 2014 by David Feuer 5 Pnormal Trac import bug core libraries runtime perf
- 22
updated Jul 07, 2019
Dynamic GHCi doesn't support static libraries

#9438 · opened Aug 14, 2014 by egl 5 Pnormal Trac import bug feature request
- 11
updated Jul 07, 2019
GHC Panic: Tick Exhausted with high factor

#9445 · opened Aug 14, 2014 by Alfredo Di Napoli 5 Pnormal Trac import bug
- 8
updated Jul 07, 2019
Add support for resizing `MutableByteArray#`s

#9447 · opened Aug 16, 2014 by Herbert Valerio Riedel 5 Pnormal Trac import bug
- 4
updated Apr 24, 2020
GHC instantiates Data instances before checking hs-boot files

#9450 · opened Aug 17, 2014 by Alan Zimmerman 5 Pnormal Trac import bug compiler crash deriving hs-boot
- 7
updated Jul 07, 2019
Weird behavior with polymorphic function involving existential quantification and GADTs

#9456 · opened Aug 18, 2014 by haasn 5 Pnormal Trac import bug error messages typechecker
- 9
updated Jul 07, 2019
hsc2hs breaks with `--cflag=-Werror` in cross-compilation mode

#9457 · opened Aug 19, 2014 by rwbarton 5 Pnormal Trac import bug external-hsc2hs
- 2
updated Jul 07, 2019
Internal error: resurrectThreads: thread blocked in a strange way: 10

#9468 · opened Aug 19, 2014 by Niklas Hambüchen 5 Pnormal RTS Trac import bug runtime crash
- 2
updated Jul 07, 2019
forkProcess breaks in multiple ways with GHC 7.6

#9470 · opened Aug 19, 2014 by Niklas Hambüchen 5 Pnormal RTS Trac import bug runtime crash
- 5
updated Jul 07, 2019
Linker does not correctly resolve symbols in previously loaded objects

#9481 · opened Aug 20, 2014 by edsko@edsko.net 5 Pnormal Trac import bug
- 10
updated Jul 07, 2019
Simplify primitives for short cut fusion

#9496 · opened Aug 21, 2014 by David Feuer ⊥ 0 Plow Trac import core libraries fusion task
- 4
updated Jul 07, 2019
GHC links against unversioned .so files

#9498 · opened Aug 21, 2014 by Sven Bartscher 5 FFI Pnormal Trac import feature request
- 28
updated Dec 02, 2019
Cross compiling with mingw uses wrong gcc

#9503 · opened Aug 22, 2014 by Sven Bartscher 5 Pnormal Trac import bug cross-compilation ghc build failure
- 3
updated Jul 07, 2019
Bounded instance for Word (and possibly others) uses explicitly unboxed literals

#9505 · opened Aug 23, 2014 by schyler ⊥ 0 Plow Trac import bug core libraries task
- 5
updated Jul 07, 2019
Remove deprecated -fglasgow-exts from NoFib suite

#9511 · opened Aug 24, 2014 by David Feuer 3 Plow Trac import nofib task
- 1
updated Jul 07, 2019
T9329 fails test on unregisterised i386, amd64

#9512 · opened Aug 24, 2014 by Sergei Trofimovich 5 Pnormal Trac import bug
- 1
updated Jul 07, 2019
Improve error message for unacceptable role annotations

#9518 · opened Aug 28, 2014 by dmcclean 3 Plow Trac import feature request newcomer typechecker
- 5
updated Jul 07, 2019
SPECIALISE pragmas for derived instances

#9522 · opened Aug 29, 2014 by Simon Peyton Jones 5 Pnormal Trac import bug deriving
- 3
updated Jul 07, 2019
IEEE Standard 754 for Binary Floating-Point Arithmetic by Prof. W. Kahan, UCB

#9534 · opened Aug 31, 2014 by jrp2014 5 Pnormal Trac import incorrect runtime result numerics task testsuite
- 8
updated Jul 07, 2019
TQueue can lead to thread starvation

#9539 · opened Sep 01, 2014 by jwlato 5 Pnormal STM Trac import bug core libraries
- 23
updated Jul 07, 2019
GHC-IO-Handle-Text.hPutStr' and writeBlocks look like they need refactoring

#9542 · opened Sep 02, 2014 by David Feuer 5 Pnormal Trac import core libraries task
- 5
updated Jul 07, 2019
Empty constraint tuples are mis-kinded

#9547 · opened Sep 03, 2014 by Simon Peyton Jones 5 Pnormal Trac import bug
- 2
updated Jul 07, 2019
Deriving instances is slow

#9557 · opened Sep 06, 2014 by Feuerbach 5 Pnormal Trac import bug compiler perf deriving
- 23
updated Jan 30, 2021
Type families + hs-boot files = unsafeCoerce

#9562 · opened Sep 06, 2014 by Richard Eisenberg 7 Phigh Safe Haskell Trac import broken test bug hs-boot
- 14
updated Jan 16, 2021
cryptarithm1 (normal) has bimodal runtime

#9570 · opened Sep 10, 2014 by Edward Z. Yang 5 Pnormal Trac import bug nofib
- 0
updated Jul 07, 2019
nofib should use criterion-style bootstrapping/sampling

#9571 · opened Sep 10, 2014 by Edward Z. Yang 5 Pnormal Trac import feature request nofib
- 3
updated Jul 07, 2019
nofib target for just building should be part of validate

#9572 · opened Sep 10, 2014 by Edward Z. Yang 5 Pnormal Trac import bug nofib
- 2
updated Jul 07, 2019
Add warning for invalid digits in integer literals

#9573 · opened Sep 10, 2014 by vlopez 8.0.1 5 Pnormal Trac import bug parser report impact
- 9
updated Jul 07, 2019
Type checking with type functions introduces many type variables, which remain ambiguous. The code no longer type checks.

#9587 · opened Sep 13, 2014 by oleg 5 Pnormal Trac import TypeFamilies bug typechecker
- 12
updated Jul 07, 2019
Add `MonadPlus (Either e)` and `Alternative (Either e)` instances

#9588 · opened Sep 13, 2014 by Herbert Valerio Riedel ⊥ 5 Pnormal Trac import core libraries report impact task
- 13
updated Jul 07, 2019
Make the rewrite rule system more powerful

#9601 · opened Sep 17, 2014 by Sophie Taylor 8.2.1 5 Pnormal Trac import feature request
- 8
updated Jul 07, 2019
Programs that require AllowAmbiguousTypes in 7.8

#9607 · opened Sep 18, 2014 by Jan Stolarek 5 Pnormal Trac import bug typechecker
- 8
updated Jul 07, 2019
ghc --print-(gcc|ld)-linker-flags broken

#9614 · opened Sep 19, 2014 by rwbarton 8.0.1 5 Pnormal Trac import bug
- 10
updated Jul 07, 2019
Implement `quot` and `rem` using `quotRem`; implement `div` and `mod` using `divMod`

#9617 · opened Sep 19, 2014 by David Feuer 5 Pnormal Trac import feature request
- 4
updated Jul 07, 2019
GHCi command to solve a constraint

#9622 · opened Sep 21, 2014 by Krzysztof Gogolewski 5 Pnormal Trac import feature request typechecker
- 2
updated Jul 07, 2019
"Unlikely constraint" recognition

#9624 · opened Sep 22, 2014 by David Feuer 5 Pnormal Trac import feature request typechecker
- 1
updated Jul 07, 2019
Type error with functional dependencies

#9627 · opened Sep 23, 2014 by lennart@augustsson.net 5 Pnormal Trac import bug
- 7
updated Jul 07, 2019
Comment in GHC.Base about GHC.Prim does not appear to be correct

#9631 · opened Sep 25, 2014 by David Feuer 8.0.1 3 Plow Trac import bug core libraries documentation
- 5
updated Jul 07, 2019
Function with type error accepted

#9636 · opened Sep 26, 2014 by lennart@augustsson.net 5 Pnormal Trac import bug
- 29
updated Jul 07, 2019
LANGUAGE pragma synonyms

#9642 · opened Sep 28, 2014 by dreixel 5 Pnormal Trac import feature request
- 11
updated Jul 07, 2019
ghci must be restarted to use break point more than once?

#9643 · opened Sep 28, 2014 by dsamperi 5 GHCi Pnormal Trac import bug debugger
- 2
updated Jul 07, 2019
Optimize range checks for primitive types

#9645 · opened Sep 29, 2014 by David Feuer 5 Pnormal Trac import feature request
- 1
updated Jul 07, 2019
Simplifer non-determinism leading to 8 fold difference in run time performance

#9646 · opened Sep 29, 2014 by erikd 8.0.1 5 Pnormal Trac import broken test bug runtime perf
- 25
updated Jul 07, 2019
symbols should/might be type level lists of chars

#9649 · opened Sep 29, 2014 by ibotty 8.0.1 5 Pnormal Trac import feature request
- 4
updated Jul 07, 2019
Do not UNPACK strict fields that are very wide

#9655 · opened Oct 01, 2014 by Simon Peyton Jones 5 Pnormal Trac import bug
- 6
updated Jul 07, 2019
Offer branchless conditional (CMOV) primop

#9659 · opened Oct 02, 2014 by David Feuer 5 Pnormal Trac import feature request
- 2
updated Jul 07, 2019
unnecessary indirect jump when returning a case scrutinee

#9660 · opened Oct 03, 2014 by rwbarton 5 Pnormal Trac import bug code generation pointer tagging runtime perf
- 8
updated Jul 29, 2019
Branchless ==# is compiled to branchy code

#9661 · opened Oct 03, 2014 by David Feuer 5 Pnormal Trac import bug runtime perf
- 27
updated Jul 07, 2019
Type inference is weaker for GADT than analogous Data Family

#9667 · opened Oct 05, 2014 by Carter Schonwald 5 GADTs Pnormal Trac import feature request typechecker
- 17
updated Jul 07, 2019
Long compile time/high memory usage for modules with many deriving clauses

#9669 · opened Oct 06, 2014 by Michael Snoyman 5 Pnormal Trac import bug compiler perf deriving
- 22
updated Jul 07, 2019
Allow expressions in patterns

#9671 · opened Oct 08, 2014 by Icelandjack 8.0.1 5 Pnormal PatternSynonyms Trac import feature request
- 1
- 21
updated May 30, 2020
Error message too long (full case statement printed)

#9672 · opened Oct 09, 2014 by andreas.abel 5 Pnormal Trac import bug typechecker
- 8
updated Jul 07, 2019
Foldable doesn't have any laws

#9674 · opened Oct 10, 2014 by David Feuer 8.0.1 5 Pnormal Trac import bug core libraries documentation task
- 12
updated Jul 07, 2019
Unreasonable memory usage on large data structures

#9675 · opened Oct 10, 2014 by Polarina 5 Pnormal Trac import bug compiler perf
- 20
updated Jul 07, 2019
GHC fails to build with mingw32-make on Windows

#9685 · opened Oct 12, 2014 by gintas 3 Plow Trac import Windows feature request
- 7
updated Jul 07, 2019
Link option detection does not work for incremental builds on Windows

#9686 · opened Oct 12, 2014 by gintas 5 Pnormal Trac import Windows bug
- 1
updated Jul 07, 2019
Improve the interaction between CSE and the join point transformation

#9688 · opened Oct 13, 2014 by David Feuer 5 CSE Pnormal Trac import feature request join points runtime perf
- 3
updated Jul 07, 2019
in GHCi map `:editNNN` to $EDITOR +NNN

#9690 · opened Oct 13, 2014 by Gabor Greif 5 GHCi Pnormal Trac import feature request
- 1
updated Jul 07, 2019
Reloading GHCi with Template Haskell names can panic GHC

#9693 · opened Oct 15, 2014 by maxs 5 Pnormal TemplateHaskell Trac import broken test bug
- 10
updated Jul 07, 2019
TH function to list names in scope

#9699 · opened Oct 16, 2014 by MikeIzbicki 5 Pnormal TemplateHaskell Trac import feature request
- 1
- 6
updated Jul 07, 2019
Support C structures in Haskell FFI

#9700 · opened Oct 16, 2014 by Yuras 5 Pnormal Trac import feature request
- 1
- 6
updated Jul 07, 2019
GADTs not specialized properly

#9701 · opened Oct 17, 2014 by David Feuer 5 Pnormal Trac import bug runtime perf
- 13
updated Jul 07, 2019
Offer a weaker name shadowing warning

#9702 · opened Oct 18, 2014 by David Feuer 5 Pnormal Trac import error messages feature request
- 3
updated Jul 07, 2019
GHC fails with "Loading temp shared object failed"

#9704 · opened Oct 18, 2014 by MaxGabriel 5 Pnormal Trac import bug compiler crash
- 2
updated Jul 07, 2019
Type inference non-determinism due to improvement

#9708 · opened Oct 21, 2014 by Simon Peyton Jones 5 Pnormal Trac import broken test bug
- 4
updated Jul 07, 2019
Make restarts itself sometimes, and that's OK

#9709 · opened Oct 21, 2014 by Richard Eisenberg 5 Pnormal Trac import bug
- 3
updated Jul 07, 2019
The list modules need a bit of post-BBP shaking

#9716 · opened Oct 23, 2014 by David Feuer 8.0.1 5 Pnormal Trac import core libraries task
- 4
updated Jul 07, 2019
More lazy orphan module loading

#9717 · opened Oct 24, 2014 by Edward Z. Yang 8.0.1 5 Pnormal Trac import backpack bug typechecker
- 4
updated Jul 07, 2019
Improve `mkInteger` interface

#9719 · opened Oct 24, 2014 by Herbert Valerio Riedel 8.0.1 3 Plow Trac import task
- 3
updated Jul 07, 2019
reexport IsList class from a trustworthy module

#9724 · opened Oct 25, 2014 by Bertram Felgenhauer 5 Pnormal Safe Haskell Trac import core libraries feature request
- 5
updated Feb 22, 2021
GHCi accepts invalid programs when recompiling

#9729 · opened Oct 26, 2014 by Eric Crockett 5 GHCi Pnormal Trac import bug
- 7
updated Jul 07, 2019
Inductive type definitions on Nat

#9731 · opened Oct 27, 2014 by b.hilken@ntlworld.com 5 Pnormal Trac import feature request
- 1
updated Jul 07, 2019