2.3. Version 9.8.3¶
The LLVM backend of this release is to be used with LLVM
11, 12, 13, 14 or 15.
2.3.1. Significant Changes¶
Issues fixed in this release include:
2.3.1.1. Compiler¶
Fixed a bug that caused GHC to panic when using the AArch64 ncg and
-fregs-graphon certain programs (#24941).Fix invalid optimisation of Cmm programs on 32-bit platforms when targetting 64-bit targets (#24893 and #24700)
Improve float-out surrounding applications of
runRW#(#25055)Fix
-fregs-graphcrash when targetting AArch64 (#24941)Fix native code generator miscompilation of signed sub-word arguments of FFI calls on x86 (#25018)
Fix code generation of foreign exports with more than 6 arguments when some are subword-width (#24314)
Fix recompilation avoidance behavior of
-fwrite-if-simplified-core(#24656)Fix linking error when
TypeDataandStrictDataare in use (#24620)Fix miscompilation by x86 native code generator due to shortcutting (#24507)
Fix uses of
(~)and(@)being rejected inTemplateHaskellsplices (#23748)
2.3.1.2. Runtime system¶
Significantly improve performance of code loading via dynamic linking (#23415)
Internal fragmentation incurred by the non-moving garbage collector’s allocator has been reduced for small objects. In one real-world application, this has reduced resident set size by about 20% and modestly improved run-time. See #23340.
--nonmoving-dense-allocator-count=⟨count⟩has been added to fine-tune this behaviour.Fix runtime crash of the
nonmoving garbage collectordue to weak pointers with static key (#24492)Allow heap profiling when the
--nonmoving-gcis in use
2.3.1.3. GHCi¶
Fix a crash involving use of field selectors in GHCi (#25109)
2.3.1.4. JavaScript backend¶
2.3.1.5. base¶
Bump version to 4.19.2.0
Fix spurious closing of file descriptors after
forkon platforms using the KQueue event manager backend (#24672)
2.3.1.6. Haddock¶
Fix source links to hyperlinked sources output (#24086)
2.3.1.7. Other Core Libraries¶
Bump
stmto 2.5.3.1Bump
deepseqto 1.5.1.0Bump
arrayto 0.5.8.0Bump
Cabalto 3.10.3.0Bump
directoryto 1.3.8.5Bump
processto 1.6.25.0
2.3.1.8. Included libraries¶
The package database provided with this distribution also contains a number of packages other than GHC itself. See the changelogs provided with these packages for further change information.
| Package | Version | Reason for inclusion |
|---|---|---|
ghc |
9.8.4 | The compiler itself |
Cabal-syntax |
3.10.3.0 | Dependency of |
Cabal |
3.10.3.0 | Dependency of |
Win32 |
2.13.4.0 | Dependency of |
array |
0.5.8.0 | Dependency of |
base |
4.19.2.0 | Core library |
binary |
0.8.9.1 | Dependency of |
bytestring |
0.12.1.0 | Dependency of |
containers |
0.6.8 | Dependency of |
deepseq |
1.5.1.0 | Dependency of |
directory |
1.3.8.5 | Dependency of |
exceptions |
0.10.7 | Dependency of |
filepath |
1.4.301.0 | Dependency of |
ghc-boot-th |
9.8.4 | Internal compiler library |
ghc-boot |
9.8.4 | Internal compiler library |
ghc-compact |
0.1.0.0 | Core library |
ghc-heap |
9.8.4 | GHC heap-walking library |
ghc-prim |
0.11.0 | Core library |
ghci |
9.8.4 | The REPL interface |
haskeline |
0.8.2.1 | Dependency of |
hpc |
0.7.0.0 | Dependency of |
integer-gmp |
1.1 | Core library |
mtl |
2.3.1 | Dependency of |
parsec |
3.1.17.0 | Dependency of |
pretty |
1.1.3.6 | Dependency of |
process |
1.6.25.0 | Dependency of |
semaphore-compat |
1.0.0 | Dependency of |
stm |
2.5.3.1 | Dependency of |
template-haskell |
2.21.0.0 | Core library |
terminfo |
0.4.1.6 | Dependency of |
text |
2.1.1 | Dependency of |
time |
1.12.2 | Dependency of |
transformers |
0.6.1.0 | Dependency of |
unix |
2.8.6.0 | Dependency of |
xhtml |
3000.2.2.1 | Dependency of |