[Git][ghc/ghc][wip/fix-checkClosure] 331 commits: template-haskell: Move wired-ins to ghc-internal
Andreas Klebinger (@AndreasK)
gitlab at gitlab.haskell.org
Tue Sep 3 13:47:38 UTC 2024
Andreas Klebinger pushed to branch wip/fix-checkClosure at Glasgow Haskell Compiler / GHC
Commits:
228dcae6 by Teo Camarasu at 2024-05-28T13:12:24+00:00
template-haskell: Move wired-ins to ghc-internal
Thus we make `template-haskell` reinstallable and keep it as the public
API for Template Haskell.
All of the wired-in identifiers are moved to `ghc-internal`.
This necessitates also moving much of `ghc-boot-th` into `ghc-internal`.
These modules are then re-exported from `ghc-boot-th` and
`template-haskell`.
To avoid a dependency on `template-haskell` from `lib:ghc`, we instead
depend on the TH ASTs via `ghc-boot-th`.
As `template-haskell` no longer has special status, we can drop the
logic adding an implicit dependency on `template-haskell` when using TH.
We can also drop the `template-haskell-next` package, which was
previously used when bootstrapping.
When bootstrapping, we need to vendor the TH AST modules from
`ghc-internal` into `ghc-boot-th`. This is controlled by the `bootstrap`
cabal flag as before. See Note [Bootstrapping Template Haskell].
We split out a GHC.Internal.TH.Lift module resolving #24752.
This module is only built when not bootstrapping.
Resolves #24703
-------------------------
Metric Increase:
ghc_boot_th_dir
ghc_boot_th_so
-------------------------
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62dded28 by Teo Camarasu at 2024-05-28T13:12:24+00:00
testsuite: mark tests broken by #24886
Now that `template-haskell` is no longer wired-in.
These tests are triggering #24886, and so need to be marked broken.
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3ca72ad9 by Cheng Shao at 2024-05-30T02:57:06-04:00
rts: fix missing function prototypes in ClosureMacros.h
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e0029e3d by Andreas Klebinger at 2024-05-30T02:57:43-04:00
UnliftedFFITypes: Allow `(# #)` as argument when it's the only argument.
This allows representing functions like:
int foo(void);
to be imported like this:
foreign import ccall "a_number_c"
c_number :: (# #) -> Int64#
Which can be useful when the imported function isn't implicitly
stateful.
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d0401335 by Matthew Pickering at 2024-05-30T02:58:19-04:00
ci: Update ci-images commit for fedora38 image
The fedora38 nightly job has been failing for quite a while because
`diff` was no longer installed. The ci-images bump explicitly installs
`diffutils` into these images so hopefully they now pass again.
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3c97c74a by Jan Hrček at 2024-05-30T02:58:58-04:00
Update exactprint docs
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77760cd7 by Jan Hrček at 2024-05-30T02:58:58-04:00
Incorporate review feedback
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87591368 by Jan Hrček at 2024-05-30T02:58:58-04:00
Remove no longer relevant reference to comments
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05f4f142 by Jan Hrček at 2024-05-30T02:58:59-04:00
Replace outdated code example
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45a4a5f3 by Andreas Klebinger at 2024-05-30T02:59:34-04:00
Reword error resulting from missing -XBangPatterns.
It can be the result of either a bang pattern or strict binding,
so now we say so instead of claiming it must be a bang pattern.
Fixes #21032
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e17f2df9 by Cheng Shao at 2024-05-30T03:00:10-04:00
testsuite: bump MultiLayerModulesDefsGhciReload timeout to 10x
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7a660042 by Cheng Shao at 2024-05-30T14:42:29-04:00
rts: ensure gc_thread/gen_workspace is allocated with proper alignment
gc_thread/gen_workspace are required to be aligned by 64 bytes.
However, this property has not been properly enforced before, and
numerous alignment violations at runtime has been caught by
UndefinedBehaviorSanitizer that look like:
```
rts/sm/GC.c:1167:8: runtime error: member access within misaligned address 0x0000027a3390 for type 'gc_thread' (aka 'struct gc_thread_'), which requires 64 byte alignment
0x0000027a3390: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior rts/sm/GC.c:1167:8
rts/sm/GC.c:1184:13: runtime error: member access within misaligned address 0x0000027a3450 for type 'gen_workspace' (aka 'struct gen_workspace_'), which requires 64 byte alignment
0x0000027a3450: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior rts/sm/GC.c:1184:13
```
This patch fixes the gc_thread/gen_workspace misalignment issue by
explicitly allocating them with alignment constraint.
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c77a48af by Cheng Shao at 2024-05-30T14:42:29-04:00
rts: fix an unaligned load in nonmoving gc
This patch fixes an unaligned load in nonmoving gc by ensuring the
closure address is properly untagged first before attempting to
prefetch its header. The unaligned load is reported by
UndefinedBehaviorSanitizer:
```
rts/sm/NonMovingMark.c:921:9: runtime error: member access within misaligned address 0x0042005f3a71 for type 'StgClosure' (aka 'struct StgClosure_'), which requires 8 byte alignment
0x0042005f3a71: note: pointer points here
00 00 00 98 43 13 8e 12 7f 00 00 50 3c 5f 00 42 00 00 00 58 17 b7 92 12 7f 00 00 89 cb 5e 00 42
^
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior rts/sm/NonMovingMark.c:921:9
```
This issue had previously gone unnoticed since it didn't really harm
runtime correctness, the invalid header address directly loaded from a
tagged pointer is only used as prefetch address and will not cause
segfaults. However, it still should be corrected because the prefetch
would be rendered useless by this issue, and untagging only involves a
single bitwise operation without memory access so it's cheap enough to
add.
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05c4fafb by Cheng Shao at 2024-05-30T14:42:29-04:00
rts: use __builtin_offsetof to implement STG_FIELD_OFFSET
This patch fixes the STG_FIELD_OFFSET macro definition by using
__builtin_offsetof, which is what gcc/clang uses to implement offsetof
in standard C. The previous definition that uses NULL pointer involves
subtle undefined behavior in C and thus reported by
UndefinedBehaviorSanitizer as well:
```
rts/Capability.h:243:58: runtime error: member access within null pointer of type 'Capability' (aka 'struct Capability_')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior rts/Capability.h:243:58
```
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5ff83bfc by Sylvain Henry at 2024-05-30T14:43:10-04:00
JS: remove useless h$CLOCK_REALTIME (#23202)
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95ef2d58 by Matthew Pickering at 2024-05-30T14:43:47-04:00
ghcup-metadata: Fix metadata generation
There were some syntax errors in the generation script which were
preventing it from running.
I have tested this with:
```
nix shell --extra-experimental-features nix-command -f .gitlab/rel_eng -c ghcup-metadata --metadata ghcup-0.0.7.yaml --date="2024-05-27" --pipeline-id=95534 --version=9.11.20240525
```
which completed successfully.
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1bc66ee4 by Jakob Bruenker at 2024-05-30T14:44:22-04:00
Add diagrams to Arrows documentation
This adds diagrams to the documentation of Arrows, similar to the ones found on
https://www.haskell.org/arrows/.
It does not add diagrams for ArrowChoice for the time being, mainly because it's
not clear to me how to visually distinguish them from the ones for Arrow. Ideally,
you might want to do something like highlight the arrows belonging to the same
tuple or same Either in common colors, but that's not really possible with unicode.
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d10a1c65 by Matthew Craven at 2024-05-30T23:35:48-04:00
Make UnsafeSNat et al. into pattern synonyms
...so that they do not cause coerce to bypass the nominal
role on the corresponding singleton types when they are imported.
See Note [Preventing unsafe coercions for singleton types] and
the discussion at #23478.
This also introduces unsafeWithSNatCo (and analogues for Char
and Symbol) so that users can still access the dangerous coercions
that importing the real constructors would allow, but only in a
very localized way.
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0958937e by Cheng Shao at 2024-05-30T23:36:25-04:00
hadrian: build C/C++ with split sections when enabled
When split sections is enabled, ensure -fsplit-sections is passed to
GHC as well when invoking GHC to compile C/C++; and pass
-ffunction-sections -fdata-sections to gcc/clang when compiling C/C++
with the hadrian Cc builder. Fixes #23381.
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02b1f91e by Cheng Shao at 2024-05-30T23:36:25-04:00
driver: build C/C++ with -ffunction-sections -fdata-sections when split sections is enabled
When -fsplit-sections is passed to GHC, pass -ffunction-sections
-fdata-sections to gcc/clang when building C/C++. Previously,
-fsplit-sections was only respected by the NCG/LLVM backends, but not
the unregisterised backend; the GHC driver did not pass
-fdata-sections and -ffunction-sections to the C compiler, which
resulted in excessive executable sizes.
Fixes #23381.
-------------------------
Metric Decrease:
size_hello_artifact
size_hello_unicode
-------------------------
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fd47e2e3 by Cheng Shao at 2024-05-30T23:37:00-04:00
testsuite: mark process005 as fragile on JS
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34a04ea1 by Matthew Pickering at 2024-05-31T06:08:36-04:00
Add -Wderiving-typeable to -Wall
Deriving `Typeable` does nothing, and it hasn't done for a long while.
There has also been a warning for a long while which warns you about
uselessly deriving it but it wasn't enabled in -Wall.
Fixes #24784
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75fa7b0b by Matthew Pickering at 2024-05-31T06:08:36-04:00
docs: Fix formatting of changelog entries
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303c4b33 by Preetham Gujjula at 2024-05-31T06:09:21-04:00
docs: Fix link to injective type families paper
Closes #24863
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df97e9a6 by Ben Gamari at 2024-05-31T06:09:57-04:00
ghc-internal: Fix package description
The previous description was inherited from `base` and was inappropriate
for `ghc-internal`. Also fix the maintainer and bug reporting fields.
Closes #24906.
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bf0737c0 by Cheng Shao at 2024-05-31T06:10:33-04:00
compiler: remove ArchWasm32 special case in cmmDoCmmSwitchPlans
This patch removes special consideration for ArchWasm32 in
cmmDoCmmSwitchPlans, which means the compiler will now disable
cmmImplementSwitchPlans for wasm unreg backend, just like unreg
backend of other targets. We enabled it in the past to workaround some
compile-time panic in older versions of LLVM, but those panics are no
longer present, hence no need to keep this workaround.
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7eda4bd2 by Cheng Shao at 2024-05-31T15:52:04-04:00
utils: add hie.yaml config file for ghc-config
Add hie.yaml to ghc-config project directory so it can be edited using
HLS.
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1e5752f6 by Cheng Shao at 2024-05-31T15:52:05-04:00
hadrian: handle findExecutable "" gracefully
hadrian may invoke findExecutable "" at run-time due to a certain
program is not found by configure script. Which is fine and
findExecutable is supposed to return Nothing in this case. However, on
Windows there's a directory bug that throws an exception (see
https://github.com/haskell/directory/issues/180), so we might as well
use a wrapper for findExecutable and handle exceptions gracefully.
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4eb5ad09 by Cheng Shao at 2024-05-31T15:52:05-04:00
configure: do not set LLC/OPT/LLVMAS fallback values when FIND_LLVM_PROG fails
When configure fails to find LLC/OPT/LLVMAS within supported version
range, it used to set "llc"/"opt"/"clang" as fallback values. This
behavior is particularly troublesome when the user has llc/opt/clang
with other versions in their PATH and run the testsuite, since hadrian
will incorrectly assume have_llvm=True and pass that to the testsuite
driver, resulting in annoying optllvm test failures (#23186). If
configure determines llc/opt/clang wouldn't work, then we shouldn't
pretend it'll work at all, and the bindist configure will invoke
FIND_LLVM_PROG check again at install time anyway.
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5f1afdf7 by Sylvain Henry at 2024-05-31T15:52:52-04:00
Introduce UniqueSet and use it to replace 'UniqSet Unique'
'UniqSet Unique' represents a set of uniques as a 'Map Unique Unique',
which is wasting space (associated key/value are always the same).
Fix #23572 and #23605
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e0aa42b9 by crumbtoo at 2024-05-31T15:53:33-04:00
Improve template-haskell haddocks
Closes #15822
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ae170155 by Olivier Benz at 2024-06-01T09:35:17-04:00
Bump max LLVM version to 19 (not inclusive)
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92aa65ea by Matthew Pickering at 2024-06-01T09:35:17-04:00
ci: Update CI images to test LLVM 18
The debian12 image in this commit has llvm 18 installed.
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adb1fe42 by Serge S. Gulin at 2024-06-01T09:35:53-04:00
Unicode: make ucd2haskell build-able again
ucd2haskell tool used streamly library which version in cabal was out of date. It is updated to the latest version at hackage with deprecated parts rewritten.
Also following fixes were applied to existing code in suppose that from its last run the code structure was changed and now it was required to be up to date with actual folder structures:
1. Ghc module path environment got a suffix with `src`.
2. Generated code got
2.1 `GHC.Internal` prefix for `Data.*`.
2.2 `GHC.Unicode.Internal` swapped on `GHC.Internal.Unicode` according to actual structure.
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ad56fd84 by Jade at 2024-06-01T09:36:29-04:00
Replace 'NB' with 'Note' in error messages
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6346c669 by Cheng Shao at 2024-06-01T09:37:04-04:00
compiler: fix -ddump-cmm-raw when compiling .cmm
This patch fixes missing -ddump-cmm-raw output when compiling .cmm,
which is useful for debugging cmm related codegen issues.
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1c834ad4 by Ryan Scott at 2024-06-01T09:37:40-04:00
Print namespace specifiers in FixitySig's Outputable instance
For whatever reason, the `Outputable` instance for `FixitySig` simply did not
print out namespace specifiers, leading to the confusing `-ddump-splices`
output seen in #24911. This patch corrects this oversight.
Fixes #24911.
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cf49fb5f by Sylvain Henry at 2024-06-01T09:38:19-04:00
Configure: display C++ compiler path
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f9c1ae12 by Cheng Shao at 2024-06-02T14:01:55-04:00
hadrian: disable PIC for in-tree GMP on wasm32
This patch disables PIC for in-tree GMP on wasm32 target. Enabling PIC
unconditionally adds undesired code size and runtime overhead for
wasm32.
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1a32f828 by Cheng Shao at 2024-06-02T14:01:55-04:00
hadrian: disable in-tree gmp fft code path for wasm32
This patch disables in-tree GMP FFT code paths for wasm32 target in
order to give up some performance of multiplying very large operands
in exchange for reduced code size.
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06277d56 by Cheng Shao at 2024-06-02T14:01:55-04:00
hadrian: build in-tree GMP with malloc-notreentrant on wasm32
This patch makes hadrian build in-tree GMP with the
--enable-alloca=malloc-notreentrant configure option. We will only
need malloc-reentrant when we have threaded RTS and SMP support on
wasm32, which will take some time to happen, before which we should
use malloc-notreentrant to avoid undesired runtime overhead.
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9f614270 by ARATA Mizuki at 2024-06-02T14:02:35-04:00
Set package include paths when assembling .S files
Fixes #24839.
Co-authored-by: Sylvain Henry <hsyl20 at gmail.com>
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4998a6ed by Alex Mason at 2024-06-03T02:09:29-04:00
Improve performance of genericWordQuotRem2Op (#22966)
Implements the algorithm from compiler-rt's udiv128by64to64default. This
rewrite results in a roughly 24x improvement in runtime on AArch64 (and
likely any other arch that uses it).
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ae50a8eb by Cheng Shao at 2024-06-03T02:10:05-04:00
testsuite: mark T7773 as fragile on wasm
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c8ece0df by Fendor at 2024-06-03T19:43:22-04:00
Migrate `Finder` component to `OsPath`, fixed #24616
For each module in a GHCi session, we keep alive one `ModLocation`.
A `ModLocation` is fairly inefficiently packed, as `String`s are
expensive in memory usage.
While benchmarking the agda codebase, we concluded that we keep alive
around 11MB of `FilePath`'s, solely retained by `ModLocation`.
We provide a more densely packed encoding of `ModLocation`, by moving
from `FilePath` to `OsPath`. Further, we migrate the full `Finder`
component to `OsPath` to avoid unnecessary transformations.
As the `Finder` component is well-encapsulated, this requires only a
minimal amount of changes in other modules.
We introduce pattern synonym for 'ModLocation' which maintains backwards
compatibility and avoids breaking consumers of 'ModLocation'.
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0cff083a by Cheng Shao at 2024-06-03T19:43:58-04:00
compiler: emit NaturallyAligned when element type & index type are the same width
This commit fixes a subtle mistake in alignmentFromTypes that used to
generate Unaligned when element type & index type are the same width.
Fixes #24930.
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18f63970 by Sebastian Graf at 2024-06-04T05:05:27-04:00
Parser: Remove unused `apats` rule
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38757c30 by David Knothe at 2024-06-04T05:05:27-04:00
Implement Or Patterns (#22596)
This commit introduces a new language extension, `-XOrPatterns`, as described in
GHC Proposal 522.
An or-pattern `pat1; ...; patk` succeeds iff one of the patterns `pat1`, ...,
`patk` succeed, in this order.
See also the summary `Note [Implmentation of OrPatterns]`.
Co-Authored-By: Sebastian Graf <sgraf1337 at gmail.com>
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395412e8 by Cheng Shao at 2024-06-04T05:06:04-04:00
compiler/ghci/rts: remove stdcall support completely
We have formally dropped i386 windows support (#18487) a long time
ago. The stdcall foreign call convention is only used by i386 windows,
and the legacy logic around it is a significant maintenance burden for
future work that adds arm64 windows support (#24603). Therefore, this
patch removes stdcall support completely from the compiler as well as
the RTS (#24883):
- stdcall is still recognized as a FFI calling convention in Haskell
syntax. GHC will now unconditionally emit a warning
(-Wunsupported-calling-conventions) and treat it as ccall.
- Apart from minimum logic to support the parsing and warning logic,
all other code paths related to stdcall has been completely stripped
from the compiler.
- ghci only supports FFI_DEFAULT_ABI and ccall convention from now on.
- FFI foreign export adjustor code on all platforms no longer handles
the stdcall case and only handles ccall from now on.
- The Win32 specific parts of RTS no longer has special code paths for
stdcall.
This commit is the final nail on the coffin for i386 windows support.
Further commits will perform more housecleaning to strip the legacy
code paths and pave way for future arm64 windows support.
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d1fe9ab6 by Cheng Shao at 2024-06-04T05:06:04-04:00
rts: remove legacy i386 windows code paths
This commit removes some legacy i386 windows related code paths in the
RTS, given this target is no longer supported.
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a605e4b2 by Cheng Shao at 2024-06-04T05:06:04-04:00
autoconf: remove i386 windows related logic
This commit removes legacy i386 windows logic in autoconf scripts.
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91e5ac5e by Cheng Shao at 2024-06-04T05:06:04-04:00
llvm-targets: remove i386 windows support
This commit removes i386 windows from llvm-targets and the script to
generate it.
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65fe75a4 by Cheng Shao at 2024-06-04T05:06:04-04:00
libraries/utils: remove stdcall related legacy logic
This commit removes stdcall related legacy logic in libraries and
utils. ccall should be used uniformly for all supported windows hosts
from now on.
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d2a83302 by Cheng Shao at 2024-06-04T05:06:04-04:00
testsuite: adapt the testsuite for stdcall removal
This patch adjusts test cases to handle the stdcall removal:
- Some stdcall usages are replaced with ccall since stdcall doesn't
make sense anymore.
- We also preserve some stdcall usages, and check in the expected
warning messages to ensure GHC always warn about stdcall usages
(-Wunsupported-calling-conventions) as expected.
- Error code testsuite coverage is slightly improved,
-Wunsupported-calling-conventions is now tested.
- Obsolete code paths related to i386 windows are also removed.
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cef8f47a by Cheng Shao at 2024-06-04T05:06:04-04:00
docs: minor adjustments for stdcall removal
This commit include minor adjustments of documentation related to
stdcall removal.
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54332437 by Cheng Shao at 2024-06-04T05:06:04-04:00
docs: mention i386 Windows removal in 9.12 changelog
This commit mentions removal of i386 Windows support and stdcall
related change in the 9.12 changelog.
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2aaea8a1 by Cheng Shao at 2024-06-04T05:06:40-04:00
hadrian: improve user settings documentation
This patch adds minor improvements to hadrian user settings documentation:
- Add missing `ghc.cpp.opts` case
- Remove non-existent `cxx` case
- Clarify `cc.c.opts` also works for C++, while `cc.deps.opts` doesn't
- Add example of passing configure argument to autoconf packages
- - - - -
71010381 by Alex Mason at 2024-06-04T12:09:07-04:00
Add AArch64 CLZ, CTZ, RBIT primop implementations.
Adds support for emitting the clz and rbit instructions, which are
used by GHC.Prim.clz*#, GHC.Prim.ctz*# and GHC.Prim.bitReverse*#.
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44e2abfb by Cheng Shao at 2024-06-04T12:09:43-04:00
hadrian: add +text_simdutf flavour transformer to allow building text with simdutf
This patch adds a +text_simdutf flavour transformer to hadrian to
allow downstream packagers and users that build from source to opt-in
simdutf support for text, in order to benefit from SIMD speedup at
run-time. It's still disabled by default for the time being.
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077cb2e1 by Cheng Shao at 2024-06-04T12:09:43-04:00
ci: enable +text_simdutf flavour transformer for wasm jobs
This commit enables +text_simdutf flavour transformer for wasm jobs,
so text is now built with simdutf support for wasm.
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b23746ad by Teo Camarasu at 2024-06-04T22:50:50-04:00
base: Use TemplateHaskellQuotes in instance Lift ByteArray
Resolves #24852
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3fd25743 by Teo Camarasu at 2024-06-04T22:50:50-04:00
base: Mark addrToByteArray as NOINLINE
This function should never be inlined in order to keep code size small.
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98ad1ea5 by Cheng Shao at 2024-06-04T22:51:26-04:00
compiler: remove unused CompilerInfo/LinkerInfo types
This patch removes CompilerInfo/LinkerInfo types from the compiler
since they aren't actually used anywhere.
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11795244 by Cheng Shao at 2024-06-05T06:33:17-04:00
rts: remove unused PowerPC/IA64 native adjustor code
This commit removes unused PowerPC/IA64 native adjustor code which is
never actually enabled by autoconf/hadrian. Fixes #24920.
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5132754b by Sylvain Henry at 2024-06-05T06:33:57-04:00
RTS: fix warnings with doing*Profiling (#24918)
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accc8c33 by Cheng Shao at 2024-06-05T11:35:36-04:00
hadrian: don't depend on inplace/mingw when --enable-distro-toolchain on Windows
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6ffbd678 by Cheng Shao at 2024-06-05T11:35:37-04:00
autoconf: normalize paths of some build-time dependencies on Windows
This commit applies path normalization via cygpath -m to some
build-time dependencies on Windows. Without this logic, the
/clang64/bin prefixed msys2-style paths cause the build to fail with
--enable-distro-toolchain.
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075dc6d4 by Cheng Shao at 2024-06-05T11:36:12-04:00
hadrian: remove OSDarwin mention from speedHack
This commit removes mentioning of OSDarwin from speedHack, since
speedHack is purely for i386 and we no longer support i386 darwin
(#24921).
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83235c4c by Cheng Shao at 2024-06-05T11:36:12-04:00
compiler: remove 32-bit darwin logic
This commit removes all 32-bit darwin logic from the compiler, given
we no longer support 32-bit apple systems (#24921). Also contains a
bit more cleanup of obsolete i386 windows logic.
- - - - -
1eb99bc3 by Cheng Shao at 2024-06-05T11:36:12-04:00
rts: remove 32-bit darwin/ios logic
This commit removes 32-bit darwin/ios related logic from the rts,
given we no longer support them (#24921).
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24f65892 by Cheng Shao at 2024-06-05T11:36:12-04:00
llvm-targets: remove 32-bit darwin/ios targets
This commit removes 32-bit darwin/ios targets from llvm-targets given
we no longer support them (#24921).
- - - - -
ccdbd689 by Cheng Shao at 2024-06-05T11:36:12-04:00
testsuite: remove 32-bit darwin logic
This commit removes 32-bit darwin logic from the testsuite given it's
no longer supported (#24921). Also contains more cleanup of obsolete
i386 windows logic.
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11d661c4 by Cheng Shao at 2024-06-05T11:36:13-04:00
docs: mention 32-bit darwin/ios removal in 9.12 changelog
This commit mentions removal of 32-bit darwin/ios support (#24921) in
the 9.12 changelog.
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7c173310 by Georgi Lyubenov at 2024-06-05T15:17:22-04:00
Add firstA and secondA to Data.Bitraversable
Please see https://github.com/haskell/core-libraries-committee/issues/172
for related discussion
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3b6f9fd1 by Ben Gamari at 2024-06-05T15:17:59-04:00
base: Fix name of changelog
Fixes #24899. Also place it under `extra-doc-files` to better reflect
its nature and avoid triggering unnecessary recompilation if it
changes.
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1f4d2ef7 by Sebastian Graf at 2024-06-05T15:18:34-04:00
Announce Or-patterns in the release notes for GHC 9.12 (#22596)
Leftover from !9229.
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8650338d by Jan Hrček at 2024-06-06T10:39:24-04:00
Improve haddocks of Language.Haskell.Syntax.Pat.Pat
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2eee65e1 by Cheng Shao at 2024-06-06T10:40:00-04:00
testsuite: bump T7653 timeout for wasm
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990fed60 by Sylvain Henry at 2024-06-07T14:45:23-04:00
StgToCmm: refactor opTranslate and friends
- Change arguments order to avoid `\args -> ...` lambdas
- Fix documentation
- Rename StgToCmm options ("big" doesn't mean anything)
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1afad514 by Sylvain Henry at 2024-06-07T14:45:23-04:00
NCG x86: remove dead code (#5444)
Since 6755d833af8c21bbad6585144b10e20ac4a0a1ab this code is dead.
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595c0894 by Cheng Shao at 2024-06-07T14:45:58-04:00
testsuite: skip objc-hi/objcxx-hi when cross compiling
objc-hi/objcxx-hi should be skipped when cross compiling. The existing
opsys('darwin') predicate only asserts the host system is darwin but
tells us nothing about the target, hence the oversight.
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edfe6140 by qqwy at 2024-06-08T11:23:54-04:00
Replace '?callStack' implicit param with HasCallStack in GHC.Internal.Exception.throw
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35a64220 by Cheng Shao at 2024-06-08T11:24:30-04:00
rts: cleanup inlining logic
This patch removes pre-C11 legacy code paths related to
INLINE_HEADER/STATIC_INLINE/EXTERN_INLINE macros, ensure EXTERN_INLINE
is treated as static inline in most cases (fixes #24945), and also
corrects the comments accordingly.
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9ea90ed2 by Andrew Lelechenko at 2024-06-08T11:25:06-04:00
CODEOWNERS: add @core-libraries to track base interface changes
A low-tech tactical solution for #24919
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580fef7b by Ben Gamari at 2024-06-09T01:27:21-04:00
ghc-internal: Update CHANGELOG to reflect current version
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391ecff5 by Ben Gamari at 2024-06-09T01:27:21-04:00
ghc-internal: Update prologue.txt to reflect package description
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3dca3b7d by Ben Gamari at 2024-06-09T01:27:57-04:00
compiler: Clarify comment regarding need for MOVABS
The comment wasn't clear in stating that it was only applicable to
immediate source and memory target operands.
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6bd850e8 by doyougnu at 2024-06-09T21:02:14-04:00
JS: establish single source of truth for symbols
In pursuit of: #22736.
This MR moves ad-hoc symbols used throughout the js backend into a
single symbols file. Why? First, this cleans up the code by removing
ad-hoc strings created on the fly and therefore makes the code more
maintainable. Second, it makes it much easier to eventually type these
identifiers.
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f3017dd3 by Cheng Shao at 2024-06-09T21:02:49-04:00
rts: replace ad-hoc MYTASK_USE_TLV with proper CC_SUPPORTS_TLS
This patch replaces the ad-hoc `MYTASK_USE_TLV` with the
`CC_SUPPORTS_TLS` macro. If TLS support is detected by autoconf, then
we should use that for managing `myTask` in the threaded RTS.
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e17d7e8c by Ben Gamari at 2024-06-11T05:25:21-04:00
users-guide: Fix stylistic issues in 9.12 release notes
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8a8a982a by Hugo Peters at 2024-06-11T05:25:57-04:00
fix typo in the simplifier debug output:
baling -> bailing
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16475bb8 by Hécate Moonlight at 2024-06-12T03:07:55-04:00
haddock: Correct the Makefile to take into account Darwin systems
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a2f60da5 by Hécate Kleidukos at 2024-06-12T03:08:35-04:00
haddock: Remove obsolete links to github.com/haskell/haddock in the docs
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de4395cd by qqwy at 2024-06-12T03:09:12-04:00
Add `__GLASGOW_HASKELL_ASSERTS_IGNORED__` as CPP macro name if `-fasserts-ignored is set.
This allows users to create their own Control.Exception.assert-like functionality that
does something other than raising an `AssertFailed` exception.
Fixes #24967
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0e9c4dee by Ryan Hendrickson at 2024-06-12T03:09:53-04:00
compiler: add hint to TcRnBadlyStaged message
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2747cd34 by Simon Peyton Jones at 2024-06-12T12:51:37-04:00
Fix a QuickLook bug
This MR fixes the bug exposed by #24676. The problem was that
quickLookArg was trying to avoid calling tcInstFun unnecessarily; but
it was in fact necessary. But that in turn forced me into a
significant refactoring, putting more fields into EValArgQL.
Highlights: see Note [Quick Look overview] in GHC.Tc.Gen.App
* Instantiation variables are now distinguishable from ordinary
unification variables, by level number = QLInstVar. This is
treated like "level infinity". See Note [The QLInstVar TcLevel]
in GHC.Tc.Utils.TcType.
* In `tcApp`, we don't track the instantiation variables in a set Delta
any more; instead, we just tell them apart by their level number.
* EValArgQL now much more clearly captures the "half-done" state
of typechecking an argument, ready for later resumption.
See Note [Quick Look at value arguments] in GHC.Tc.Gen.App
* Elminated a bogus (never used) fast-path in
GHC.Tc.Utils.Instantiate.instCallConstraints
See Note [Possible fast path for equality constraints]
Many other small refactorings.
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1b1523b1 by George Thomas at 2024-06-12T12:52:18-04:00
Fix non-compiling extensible record `HasField` example
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97b141a3 by Zubin Duggal at 2024-06-12T12:52:55-04:00
haddock: Fix hyperlinker source urls (#24907)
This fixes a bug introduced by f56838c36235febb224107fa62334ebfe9941aba Links to
external modules in the hyperlinker are uniformly generated using splicing the
template given to us instead of attempting to construct the url in an ad-hoc manner.
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954f864c by Zubin Duggal at 2024-06-12T12:52:55-04:00
haddock: Add name anchor to external source urls from documentation page
URLs for external source links from documentation pages were missing a splice
location for the name.
Fixes #24912
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b0b64177 by Simon Peyton Jones at 2024-06-12T12:53:31-04:00
Prioritise nominal equalities
The main payload of this patch is
* Prioritise nominal equalities in the constraint solver. This
ameliorates the incompleteness of solving for representational
constraints over newtypes: see #24887.
See (EX2) in Note [Decomposing newtype equalities] in
GHC.Tc.Solver.Equality
In doing this patch I tripped over some other things that I refactored:
* Move `isCoVarType` from `GHC.Core.Type` to `GHC.Core.Predicate`
where it seems more at home.
* Clarify the "rewrite role" of a constraint. I was very puzzled
about what the role of, say `(Eq a)` might be, but see the new
Note [The rewrite-role of a constraint].
In doing so I made predTypeEqRel crash when given a non-equality.
Usually it expects an equality; but it was being mis-used for
the above rewrite-role stuff.
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cb7c1b83 by Liam Goodacre at 2024-06-12T12:54:09-04:00
compiler: missing-deriving-strategies suggested fix
Extends the missing-deriving-strategies warning with a suggested fix
that includes which deriving strategies were assumed.
For info about the warning, see comments for
`TcRnNoDerivStratSpecified`, `TcRnNoDerivingClauseStrategySpecified`, &
`TcRnNoStandaloneDerivingStrategySpecified`.
For info about the suggested fix, see
`SuggestExplicitDerivingClauseStrategies` &
`SuggestExplicitStandalanoDerivingStrategy`.
docs: Rewords missing-deriving-strategies to mention the suggested fix.
Resolves #24955
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4e36d3a3 by Jan Hrček at 2024-06-12T12:54:48-04:00
Further haddocks improvements in Language.Haskell.Syntax.Pat.Pat
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558353f4 by Cheng Shao at 2024-06-12T12:55:24-04:00
rts: use page sized mblocks on wasm
This patch changes mblock size to page size on wasm. It allows us to
simplify our wasi-libc fork, makes it much easier to test third party
libc allocators like emmalloc/mimalloc, as well as experimenting with
threaded RTS in wasm.
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b3cc5366 by Matthew Pickering at 2024-06-12T23:06:57-04:00
compiler: Make ghc-experimental not wired in
If you need to wire in definitions, then place them in ghc-internal and
reexport them from ghc-experimental.
Ticket #24903
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700eeab9 by Hécate Kleidukos at 2024-06-12T23:07:37-04:00
base: Use a more appropriate unicode arrow for the ByteArray diagram
This commit rectifies the usage of a unicode arrow in favour of one that
doesn't provoke mis-alignment.
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cca7de25 by Matthew Pickering at 2024-06-12T23:08:14-04:00
ghcup-metadata: Fix debian version ranges
This was caught by `ghcup-ci` failing and attempting to install a deb12
bindist on deb11.
```
configure: WARNING: m4/prep_target_file.m4: Expecting YES/NO but got in ArSupportsDashL_STAGE0. Defaulting to False.
bin/ghc-toolchain-bin: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by bin/ghc-toolchain-bin)
bin/ghc-toolchain-bin: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by /tmp/tmp.LBhwvFbVoy/foobarbaz/.ghcup/tmp/ghcup-708d9668d5d82287/ghc-9.11.20240609-x86_64-unknown-linux/bin/../lib/x86_64-linux-ghc-9.11.20240609/libHSunix-2.8.5.1-inplace-ghc9.11.20240609.so)
bin/ghc-toolchain-bin: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /tmp/tmp.LBhwvFbVoy/foobarbaz/.ghcup/tmp/ghcup-708d9668d5d82287/ghc-9.11.20240609-x86_64-unknown-linux/bin/../lib/x86_64-linux-ghc-9.11.20240609/libHSunix-2.8.5.1-inplace-ghc9.11.20240609.so)
```
Fixes #24974
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7b23ce8b by Pierre Le Marre at 2024-06-13T15:35:04-04:00
ucd2haskell: remove Streamly dependency + misc
- Remove dead code.
- Remove `streamly` dependency.
- Process files with `bytestring`.
- Replace Unicode files parsers with the corresponding ones from the
package `unicode-data-parser`.
- Simplify cabal file and rename module
- Regenerate `ghc-internal` Unicode files with new header
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4570319f by Jacco Krijnen at 2024-06-13T15:35:41-04:00
Document how to run haddocks tests (#24976)
Also remove ghc 9.7 requirement
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fb629e24 by amesgen at 2024-06-14T00:28:20-04:00
compiler: refactor lower_CmmExpr_Ptr
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def46c8c by amesgen at 2024-06-14T00:28:20-04:00
compiler: handle CmmRegOff in lower_CmmExpr_Ptr
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ce76bf78 by Simon Peyton Jones at 2024-06-14T00:28:56-04:00
Small documentation update in Quick Look
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19bcfc9b by Simon Peyton Jones at 2024-06-14T14:44:19-04:00
Add hack for #24623
..Th bug in #24623 is randomly triggered by this MR!..
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7a08a025 by Simon Peyton Jones at 2024-06-14T14:44:19-04:00
Various fixes to type-tidying
This MR was triggered by #24868, but I found a number of bugs
and infelicities in type-tidying as I went along. Highlights:
* Fix to #24868 is in GHC.Tc.Errors.report_unsolved: avoid
using the OccNames of /bound/ variables when tidying /free/
variables; see the call to `tidyAvoiding`. That avoid the
gratuitous renaming which was the cause of #24868. See
Note [tidyAvoiding] in GHC.Core.TyCo.Tidy
* Refactor and document the tidying of open types.
See GHC.Core.TyCo.Tidy
Note [Tidying open types]
Note [Tidying is idempotent]
* Tidy the coercion variable in HoleCo. That's important so
that tidied types have tidied kinds.
* Some small renaming to make things consistent. In particular
the "X" forms return a new TidyEnv. E.g.
tidyOpenType :: TidyEnv -> Type -> Type
tidyOpenTypeX :: TidyEnv -> Type -> (TidyEnv, Type)
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2eac0288 by Simon Peyton Jones at 2024-06-14T14:44:19-04:00
Wibble
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e5d24cc2 by Simon Peyton Jones at 2024-06-14T14:44:20-04:00
Wibbles
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246bc3a4 by Simon Peyton Jones at 2024-06-14T14:44:56-04:00
Localise a case-binder in SpecConstr.mkSeqs
This small change fixes #24944
See (SCF1) in Note [SpecConstr and strict fields]
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a5994380 by Sylvain Henry at 2024-06-15T03:20:29-04:00
PPC: display foreign label in panic message (cf #23969)
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bd95553a by Rodrigo Mesquita at 2024-06-15T03:21:06-04:00
cmm: Parse MO_BSwap primitive operation
Parsing this operation allows it to be tested using `test-primops` in a
subsequent MR.
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e0099721 by Andrew Lelechenko at 2024-06-16T17:57:38-04:00
Make flip representation polymorphic, similar to ($) and (&)
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/245
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118a1292 by Alan Zimmerman at 2024-06-16T17:58:15-04:00
EPA: Add location to Match Pats list
So we can freely modify the pats and the following item spacing will
still be valid when exact printing.
Closes #24862
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db343324 by Fabricio de Sousa Nascimento at 2024-06-17T10:01:51-04:00
compiler: Rejects RULES whose LHS immediately fails to type-check
Fixes GHC crashing on `decomposeRuleLhs` due to ignoring coercion values. This
happens when we have a RULE that does not type check, and enable
`-fdefer-type-errors`. We prevent this to happen by rejecting RULES with an
immediately LHS type error.
Fixes #24026
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e7a95662 by Dylan Thinnes at 2024-06-17T10:02:35-04:00
Add hscTypecheckRenameWithDiagnostics, for HLS (#24996)
Use runHsc' in runHsc so that both functions can't fall out of sync
We're currently copying parts of GHC code to get structured warnings
in HLS, so that we can recreate `hscTypecheckRenameWithDiagnostics`
locally. Once we get this function into GHC we can drop the copied code
in future versions of HLS.
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d70abb49 by sheaf at 2024-06-18T18:47:20-04:00
Clarify -XGADTs enables existential quantification
Even though -XGADTs does not turn on -XExistentialQuantification,
it does allow the user of existential quantification syntax, without
needing to use GADT-style syntax.
Fixes #20865
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13fdf788 by David Binder at 2024-06-18T18:48:02-04:00
Add RTS flag --read-tix-file (GHC Proposal 612)
This commit introduces the RTS flag `--read-tix-file=<yes|no>` which
controls whether a preexisting .tix file is read in at the beginning
of a program run. The default is currently `--read-tix-file=yes` but
will change to `--read-tix-file=no` in a future release of GHC. For
this reason, whenever a .tix file is read in a warning is emitted to
stderr. This warning can be silenced by explicitly passing the
`--read-tix-file=yes` option. Details can be found in the GHC proposal
cited below.
Users can query whether this flag has been used with the help of the
module `GHC.RTS.Flags`. A new field `readTixFile` was added to the
record `HpcFlags`.
These changes have been discussed and approved in
- GHC proposal 612: https://github.com/ghc-proposals/ghc-proposals/pull/612
- CLC proposal 276: https://github.com/haskell/core-libraries-committee/issues/276
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f0e3cb6a by Fendor at 2024-06-18T18:48:38-04:00
Improve sharing of duplicated values in `ModIface`, fixes #24723
As a `ModIface` often contains duplicated values that are not
necessarily shared, we improve sharing by serialising the `ModIface`
to an in-memory byte array. Serialisation uses deduplication tables, and
deserialisation implicitly shares duplicated values.
This helps reducing the peak memory usage while compiling in
`--make` mode. The peak memory usage is especially smaller when
generating interface files with core expressions
(`-fwrite-if-simplified-core`).
On agda, this reduces the peak memory usage:
* `2.2 GB` to `1.9 GB` for a ghci session.
On `lib:Cabal`, we report:
* `570 MB` to `500 MB` for a ghci session
* `790 MB` to `667 MB` for compiling `lib:Cabal` with ghc
There is a small impact on execution time, around 2% on the agda code
base.
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1bab7dde by Fendor at 2024-06-18T18:48:38-04:00
Avoid unneccessarily re-serialising the `ModIface`
To reduce memory usage of `ModIface`, we serialise `ModIface` to an
in-memory byte array, which implicitly shares duplicated values.
This serialised byte array can be reused to avoid work when we actually
write the `ModIface` to disk.
We introduce a new field to `ModIface` which allows us to save the byte
array, and write it direclty to disk if the `ModIface` wasn't changed
after the initial serialisation.
This requires us to change absolute offsets, for example to jump to the
deduplication table for `Name` or `FastString` with relative offsets, as
the deduplication byte array doesn't contain header information, such as
fingerprints.
To allow us to dump the binary blob to disk, we need to replace all
absolute offsets with relative ones.
We introduce additional helpers for `ModIface` binary serialisation, which
construct relocatable binary blobs. We say the binary blob is relocatable,
if the binary representation can be moved and does not contain any
absolute offsets.
Further, we introduce new primitives for `Binary` that allow to create
relocatable binaries, such as `forwardGetRel` and `forwardPutRel`.
-------------------------
Metric Decrease:
MultiLayerModulesDefsGhcWithCore
Metric Increase:
MultiComponentModules
MultiLayerModules
T10421
T12150
T12234
T12425
T13035
T13253-spj
T13701
T13719
T14697
T15703
T16875
T18698b
T18140
T18304
T18698a
T18730
T18923
T20049
T24582
T5837
T6048
T9198
T9961
mhu-perf
-------------------------
These metric increases may look bad, but they are all completely benign,
we simply allocate 1 MB per module for `shareIface`. As this allocation
is quite quick, it has a negligible impact on run-time performance.
In fact, the performance difference wasn't measurable on my local
machine. Reducing the size of the pre-allocated 1 MB buffer avoids these
test failures, but also requires us to reallocate the buffer if the
interface file is too big. These reallocations *did* have an impact on
performance, which is why I have opted to accept all these metric
increases, as the number of allocated bytes is merely a guidance.
This 1MB allocation increase causes a lot of tests to fail that
generally have a low allocation number. E.g., increasing from 40MB to
41MB is a 2.5% increase.
In particular, the tests T12150, T13253-spj, T18140, T18304, T18698a,
T18923, T20049, T24582, T5837, T6048, and T9961 only fail on i386-darwin
job, where the number of allocated bytes seems to be lower than in other
jobs.
The tests T16875 and T18698b fail on i386-linux for the same reason.
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099992df by Andreas Klebinger at 2024-06-18T18:49:14-04:00
Improve documentation of @Any@ type.
In particular mention possible uses for non-lifted types.
Fixes #23100.
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5e75412b by Jakob Bruenker at 2024-06-18T18:49:51-04:00
Update user guide to indicate support for 64-tuples
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4f5da595 by Andreas Klebinger at 2024-06-18T18:50:28-04:00
lint notes: Add more info to notes.stdout
When fixing a note reference CI fails with a somewhat confusing diff.
See #21123. This commit adds a line to the output file being compared
which hopefully makes it clear this is the list of broken refs, not all
refs.
Fixes #21123
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1eb15c61 by Jakob Bruenker at 2024-06-18T18:51:04-04:00
docs: Update mention of ($) type in user guide
Fixes #24909
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1d66c9e3 by Jan Hrček at 2024-06-18T18:51:47-04:00
Remove duplicate Anno instances
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8ea0ba95 by Sven Tennie at 2024-06-18T18:52:23-04:00
AArch64: Delete unused RegNos
This has the additional benefit of getting rid of the -1 encoding (real
registers start at 0.)
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325422e0 by Sjoerd Visscher at 2024-06-18T18:53:04-04:00
Bump stm submodule to current master
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64fba310 by Cheng Shao at 2024-06-18T18:53:40-04:00
testsuite: bump T17572 timeout on wasm32
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eb612fbc by Sven Tennie at 2024-06-19T06:46:00-04:00
AArch64: Simplify BL instruction
The BL constructor carried unused data in its third argument.
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b0300503 by Alan Zimmerman at 2024-06-19T06:46:36-04:00
TTG: Move SourceText from `Fixity` to `FixitySig`
It is only used there, simplifies the use of `Fixity` in the rest of
the code, and is moved into a TTG extension point.
Precedes !12842, to simplify it
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842e119b by Rodrigo Mesquita at 2024-06-19T06:47:13-04:00
base: Deprecate some .Internal modules
Deprecates the following modules according to clc-proposal #217:
https://github.com/haskell/core-libraries-committee/issues/217
* GHC.TypeNats.Internal
* GHC.TypeLits.Internal
* GHC.ExecutionStack.Internal
Closes #24998
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24e89c40 by Jacco Krijnen at 2024-06-20T07:21:27-04:00
ttg: Use List instead of Bag in AST for LHsBindsLR
Considering that the parser used to create a Bag of binds using a
cons-based approach, it can be also done using lists. The operations in
the compiler don't really require Bag.
By using lists, there is no dependency on GHC.Data.Bag anymore from the
AST.
Progress towards #21592
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04f5bb85 by Simon Peyton Jones at 2024-06-20T07:22:03-04:00
Fix untouchability test
This MR fixes #24938. The underlying problem was tha the test for
"does this implication bring in scope any equalities" was plain wrong.
See
Note [Tracking Given equalities] and
Note [Let-bound skolems]
both in GHC.Tc.Solver.InertSet.
Then
* Test LocalGivenEqs succeeds for a different reason than before;
see (LBS2) in Note [Let-bound skolems]
* New test T24938a succeeds because of (LBS2), whereas it failed
before.
* Test LocalGivenEqs2 now fails, as it should.
* Test T224938, the repro from the ticket, fails, as it should.
- - - - -
9a757a27 by Simon Peyton Jones at 2024-06-20T07:22:40-04:00
Fix demand signatures for join points
This MR tackles #24623 and #23113
The main change is to give a clearer notion of "worker/wrapper arity", esp
for join points. See GHC.Core.Opt.DmdAnal
Note [Worker/wrapper arity and join points]
This Note is a good summary of what this MR does:
(1) The "worker/wrapper arity" of an Id is
* For non-join-points: idArity
* The join points: the join arity (Id part only of course)
This is the number of args we will use in worker/wrapper.
See `ww_arity` in `dmdAnalRhsSig`, and the function `workWrapArity`.
(2) A join point's demand-signature arity may exceed the Id's worker/wrapper
arity. See the `arity_ok` assertion in `mkWwBodies`.
(3) In `finaliseArgBoxities`, do trimBoxity on any argument demands beyond
the worker/wrapper arity.
(4) In WorkWrap.splitFun, make sure we split based on the worker/wrapper
arity (re)-computed by workWrapArity.
- - - - -
5e8faaf1 by Jan Hrček at 2024-06-20T07:23:20-04:00
Update haddocks of Import/Export AST types
- - - - -
cd512234 by Hécate Kleidukos at 2024-06-20T07:24:02-04:00
haddock: Update bounds in cabal files and remove allow-newer stanza in cabal.project
- - - - -
8a8ff8f2 by Rodrigo Mesquita at 2024-06-20T07:24:38-04:00
cmm: Don't parse MO_BSwap for W8
Don't support parsing bswap8, since bswap8 is not really an operation
and would have to be implemented as a no-op (and currently is not
implemented at all).
Fixes #25002
- - - - -
5cc472f5 by sheaf at 2024-06-20T07:25:14-04:00
Delete unused testsuite files
These files were committed by mistake in !11902.
This commit simply removes them.
- - - - -
7b079378 by Matthew Pickering at 2024-06-20T07:25:50-04:00
Remove left over debugging pragma from 2016
This pragma was accidentally introduced in 648fd73a7b8fbb7955edc83330e2910428e76147
The top-level cost centres lead to a lack of optimisation when compiling
with profiling.
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c872e09b by Hécate Kleidukos at 2024-06-20T19:28:36-04:00
haddock: Remove unused pragmata, qualify usages of Data.List functions, add more sanity checking flags by default
This commit enables some extensions and GHC flags in the cabal file in a way
that allows us to reduce the amount of prologuing on top of each file.
We also prefix the usage of some List functions that removes ambiguity
when they are also exported from the Prelude, like foldl'.
In general, this has the effect of pointing out more explicitly
that a linked list is used.
Metric Increase:
haddock.Cabal
haddock.base
haddock.compiler
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8c87d4e1 by Arnaud Spiwack at 2024-06-20T19:29:12-04:00
Add test case for #23586
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568de8a5 by Arnaud Spiwack at 2024-06-20T19:29:12-04:00
When matching functions in rewrite rules: ignore multiplicity
When matching a template variable to an expression, we check that it
has the same type as the matched expression. But if the variable `f` has
type `A -> B` while the expression `e` has type `A %1 -> B`, the match was
previously rejected.
A principled solution would have `f` substituted by `\(%Many x) -> e
x` or some other appropriate coercion. But since linearity is not
properly checked in Core, we can be cheeky and simply ignore
multiplicity while matching. Much easier.
This has forced a change in the linter which, when `-dlinear-core-lint`
is off, must consider that `a -> b` and `a %1 -> b` are equal. This is
achieved by adding an argument to configure the behaviour of
`nonDetCmpTypeX` and modify `ensureEqTys` to call to the new behaviour
which ignores multiplicities when comparing two `FunTy`.
Fixes #24725.
- - - - -
c8a8727e by Simon Peyton Jones at 2024-06-20T19:29:12-04:00
Faster type equality
This MR speeds up type equality, triggered by perf regressions that
showed up when fixing #24725 by parameterising type equality over
whether to ignore multiplicity.
The changes are:
* Do not use `nonDetCmpType` for type /equality/. Instead use a specialised
type-equality function, which we have always had!
`nonDetCmpType` remains, but I did not invest effort in refactoring
or optimising it.
* Type equality is parameterised by
- whether to expand synonyms
- whether to respect multiplicities
- whether it has a RnEnv2 environment
In this MR I systematically specialise it for static values of these
parameters. Much more direct and predictable than before. See
Note [Specialising type equality]
* We want to avoid comparing kinds if possible. I refactored how this
happens, at least for `eqType`.
See Note [Casts and coercions in type comparison]
* To make Lint fast, we want to avoid allocating a thunk for <msg> in
ensureEqTypes ty1 ty2 <msg>
because the test almost always succeeds, and <msg> isn't needed.
See Note [INLINE ensureEqTys]
Metric Decrease:
T13386
T5030
- - - - -
21fc180b by Ryan Hendrickson at 2024-06-22T10:40:55-04:00
base: Add inits1 and tails1 to Data.List
- - - - -
d640a3b6 by Sebastian Graf at 2024-06-22T10:41:32-04:00
Derive previously hand-written `Lift` instances (#14030)
This is possible now that #22229 is fixed.
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33fee6a2 by Sebastian Graf at 2024-06-22T10:41:32-04:00
Implement the "Derive Lift instances for data types in template-haskell" proposal (#14030)
After #22229 had been fixed, we can finally derive the `Lift` instance for the
TH AST, as proposed by Ryan Scott in
https://mail.haskell.org/pipermail/libraries/2015-September/026117.html.
Fixes #14030, #14296, #21759 and #24560.
The residency of T24471 increases by 13% because we now load `AnnLookup`
from its interface file, which transitively loads the whole TH AST.
Unavoidable and not terrible, I think.
Metric Increase:
T24471
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383c01a8 by Matthew Pickering at 2024-06-22T10:42:08-04:00
bindist: Use complete relative paths when cding to directories
If a user has configured CDPATH on their system then `cd lib` may change
into an unexpected directory during the installation process.
If you write `cd ./lib` then it will not consult `CDPATH` to determine
what you mean.
I have added a check on ghcup-ci to verify that the bindist installation
works in this situation.
Fixes #24951
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5759133f by Hécate Kleidukos at 2024-06-22T10:42:49-04:00
haddock: Use the more precise SDocContext instead of DynFlags
The pervasive usage of DynFlags (the parsed command-line options passed
to ghc) blurs the border between different components of Haddock, and
especially those that focus solely on printing text on the screen.
In order to improve the understanding of the real dependencies of a
function, the pretty-printer options are made concrete earlier in the
pipeline instead of late when pretty-printing happens.
This also has the advantage of clarifying which functions actually
require DynFlags for purposes other than pretty-printing, thus making
the interactions between Haddock and GHC more understandable when
exploring the code base.
See Henry, Ericson, Young. "Modularizing GHC".
https://hsyl20.fr/home/files/papers/2022-ghc-modularity.pdf. 2022
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749e089b by Alexander McKenna at 2024-06-22T10:43:24-04:00
Add INLINE [1] pragma to compareInt / compareWord
To allow rules to be written on the concrete implementation of
`compare` for `Int` and `Word`, we need to have an `INLINE [1]`
pragma on these functions, following the
`matching_overloaded_methods_in_rules` note in `GHC.Classes`.
CLC proposal https://github.com/haskell/core-libraries-committee/issues/179
Fixes https://gitlab.haskell.org/ghc/ghc/-/issues/22643
- - - - -
db033639 by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
ci: Enable strict ghc-toolchain setting for bindists
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14308a8f by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
ghc-toolchain: Improve parse failure error
Improves the error message for when `ghc-toolchain` fails to read a
valid `Target` value from a file (in doFormat mode).
- - - - -
6e7cfff1 by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
bindist: ghc-toolchain related options in configure
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958d6931 by Matthew Pickering at 2024-06-24T17:21:15-04:00
ci: Fail when bindist configure fails when installing bindist
It is better to fail earlier if the configure step fails rather than
carrying on for a more obscure error message.
- - - - -
f48d157d by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
ghc-toolchain: Fix error logging indentation
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f1397104 by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
bindist: Correct default.target substitution
The substitution on `default.target.in` must be done after
`PREP_TARGET_FILE` is called -- that macro is responsible for
setting the variables that will be effectively substituted in the target
file. Otherwise, the target file is invalid.
Fixes #24792 #24574
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665e653e by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
configure: Prefer tool name over tool path
It is non-obvious whether the toolchain configuration should use
full-paths to tools or simply their names. In addressing #24574, we've
decided to prefer executable names over paths, ultimately, because the
bindist configure script already does this, thus is the default in ghcs
out there.
Updates the in-tree configure script to prefer tool names
(`AC_CHECK_TOOL` rather than `AC_PATH_TOOL`) and `ghc-toolchain` to
ignore the full-path-result of `findExecutable`, which it previously
used over the program name.
This change doesn't undo the fix in bd92182cd56140ffb2f68ec01492e5aa6333a8fc
because `AC_CHECK_TOOL` still takes into account the target triples,
unlike `AC_CHECK_PROG/AC_PATH_PROG`.
- - - - -
463716c2 by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
dist: Don't forget to configure JavascriptCPP
We introduced a configuration step for the javascript preprocessor, but
only did so for the in-tree configure script.
This commit makes it so that we also configure the javascript
preprocessor in the configure shipped in the compiler bindist.
- - - - -
e99cd73d by Rodrigo Mesquita at 2024-06-24T17:21:15-04:00
distrib: LlvmTarget in distrib/configure
LlvmTarget was being set and substituted in the in-tree configure, but
not in the configure shipped in the bindist.
We want to set the LlvmTarget to the canonical LLVM name of the platform
that GHC is targetting.
Currently, that is going to be the boostrapped llvm target (hence the
code which sets LlvmTarget=bootstrap_llvm_target).
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4199aafe by Matthew Pickering at 2024-06-24T17:21:51-04:00
Update bootstrap plans for recent GHC versions (9.6.5, 9.8.2, 9.10.10)
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f599d816 by Matthew Pickering at 2024-06-24T17:21:51-04:00
ci: Add 9_10 bootstrap testing job
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8f4b799d by Hécate Kleidukos at 2024-06-24T17:22:30-04:00
haddock: Move the usage of mkParserOpts directly to ppHyperlinkedModuleSource in order to avoid passing a whole DynFlags
Follow up to !12931
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210cf1cd by Hécate Kleidukos at 2024-06-24T17:22:30-04:00
haddock: Remove cabal file linting rule
This will be reintroduced with a properly ignored commit
when the cabal files are themselves formatted for good.
- - - - -
7fe85b13 by Peter Trommler at 2024-06-24T22:03:41-04:00
PPC NCG: Fix sign hints in C calls
Sign hints for parameters are in the second component of the pair.
Fixes #23034
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949a0e0b by Andrew Lelechenko at 2024-06-24T22:04:17-04:00
base: fix missing changelog entries
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1bfa9111 by Andreas Klebinger at 2024-06-26T21:49:53-04:00
GHCi interpreter: Tag constructor closures when possible.
When evaluating PUSH_G try to tag the reference we are pushing if it's a
constructor. This is potentially helpful for performance and required to
fix #24870.
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caf44a2d by Andrew Lelechenko at 2024-06-26T21:50:30-04:00
Implement Data.List.compareLength and Data.List.NonEmpty.compareLength
`compareLength xs n` is a safer and faster alternative to `compare (length xs) n`.
The latter would force and traverse the entire spine (potentially diverging),
while the former traverses as few elements as possible.
The implementation is carefully designed to maintain as much laziness as possible.
As per https://github.com/haskell/core-libraries-committee/issues/257
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f4606ae0 by Serge S. Gulin at 2024-06-26T21:51:05-04:00
Unicode: adding compact version of GeneralCategory (resolves #24789)
The following features are applied:
1. Lookup code like Cmm-switches (draft implementation proposed by Sylvain Henry @hsyl20)
2. Nested ifs (logarithmic search vs linear search) (the idea proposed by Sylvain Henry @hsyl20)
-------------------------
Metric Decrease:
size_hello_artifact
size_hello_unicode
-------------------------
- - - - -
0e424304 by Hécate Kleidukos at 2024-06-26T21:51:44-04:00
haddock: Restructure import statements
This commit removes idiosyncrasies that have accumulated with the years
in how import statements were laid out, and defines clear but simple
guidelines in the CONTRIBUTING.md file.
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9b8ddaaf by Arnaud Spiwack at 2024-06-26T21:52:23-04:00
Rename test for #24725
I must have fumbled my tabs when I copy/pasted the issue number in
8c87d4e1136ae6d28e92b8af31d78ed66224ee16.
- - - - -
b0944623 by Arnaud Spiwack at 2024-06-26T21:52:23-04:00
Add original reproducer for #24725
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77ce65a5 by Matthew Pickering at 2024-06-27T07:57:14-04:00
Expand LLVM version matching regex for compability with bsd systems
sed on BSD systems (such as darwin) does not support the + operation.
Therefore we take the simple minded approach of manually expanding
group+ to groupgroup*.
Fixes #24999
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bdfe4a9e by Matthew Pickering at 2024-06-27T07:57:14-04:00
ci: On darwin configure LLVMAS linker to match LLC and OPT toolchain
The version check was previously broken so the toolchain was not
detected at all.
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07e03a69 by Matthew Pickering at 2024-06-27T07:57:15-04:00
Update nixpkgs commit for darwin toolchain
One dependency (c-ares) changed where it hosted the releases which
breaks the build with the old nixpkgs commit.
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144afed7 by Rodrigo Mesquita at 2024-06-27T07:57:50-04:00
base: Add changelog entry for #24998
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eebe1658 by Sylvain Henry at 2024-06-28T07:13:26-04:00
X86/DWARF: support no tables-next-to-code and asm-shortcutting (#22792)
- Without TNTC (tables-next-to-code), we must be careful to not
duplicate labels in pprNatCmmDecl. Especially, as a CmmProc is
identified by the label of its entry block (and not of its info
table), we can't reuse the same label to delimit the block end and the
proc end.
- We generate debug infos from Cmm blocks. However, when
asm-shortcutting is enabled, some blocks are dropped at the asm
codegen stage and some labels in the DebugBlocks become missing.
We fix this by filtering the generated debug-info after the asm
codegen to only keep valid infos.
Also add some related documentation.
- - - - -
6e86d82b by Sylvain Henry at 2024-06-28T07:14:06-04:00
PPC NCG: handle JMP to ForeignLabels (#23969)
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9e4b4b0a by Sylvain Henry at 2024-06-28T07:14:06-04:00
PPC NCG: support loading 64-bit value on 32-bit arch (#23969)
- - - - -
50caef3e by Sylvain Henry at 2024-06-28T07:14:46-04:00
Fix warnings in genapply
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37139b17 by Matthew Pickering at 2024-06-28T07:15:21-04:00
libraries: Update os-string to 2.0.4
This updates the os-string submodule to 2.0.4 which removes the usage of
`TemplateHaskell` pragma.
- - - - -
0f3d3bd6 by Sylvain Henry at 2024-06-30T00:47:40-04:00
Bump array submodule
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354c350c by Sylvain Henry at 2024-06-30T00:47:40-04:00
GHCi: Don't use deprecated sizeofMutableByteArray#
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35d65098 by Ben Gamari at 2024-06-30T00:47:40-04:00
primops: Undeprecate addr2Int# and int2Addr#
addr2Int# and int2Addr# were marked as deprecated with the introduction
of the OCaml code generator (1dfaee318171836b32f6b33a14231c69adfdef2f)
due to its use of tagged integers. However, this backend has long
vanished and `base` has all along been using `addr2Int#` in the Show
instance for Ptr.
While it's unlikely that we will have another backend which has tagged
integers, we may indeed support platforms which have tagged pointers.
Consequently we undeprecate the operations but warn the user that the
operations may not be portable.
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3157d817 by Sylvain Henry at 2024-06-30T00:47:41-04:00
primops: Undeprecate par#
par# is still used in base and it's not clear how to replace it with
spark# (see #24825)
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c8d5b959 by Ben Gamari at 2024-06-30T00:47:41-04:00
Primops: Make documentation generation more efficient
Previously we would do a linear search through all primop names, doing a
String comparison on the name of each when preparing the HsDocStringMap.
Fix this.
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65165fe4 by Ben Gamari at 2024-06-30T00:47:41-04:00
primops: Ensure that deprecations are properly tracked
We previously failed to insert DEPRECATION pragmas into GHC.Prim's
ModIface, meaning that they would appear in the Haddock documentation
but not issue warnings. Fix this.
See #19629. Haddock also needs to be fixed: https://github.com/haskell/haddock/issues/223
Co-authored-by: Sylvain Henry <sylvain at haskus.fr>
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bc1d435e by Mario Blažević at 2024-06-30T00:48:20-04:00
Improved pretty-printing of unboxed TH sums and tuples, fixes #24997
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0d170eaf by Zubin Duggal at 2024-07-04T11:08:41-04:00
compiler: Turn `FinderCache` into a record of operations so that GHC API clients can
have full control over how its state is managed by overriding `hsc_FC`.
Also removes the `uncacheModule` function as this wasn't being used by anything
since 1893ba12fe1fa2ade35a62c336594afcd569736e
Fixes #23604
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4664997d by Teo Camarasu at 2024-07-04T11:09:18-04:00
Add HasCallStack to T23221
This makes the test a bit easier to debug
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66919dcc by Teo Camarasu at 2024-07-04T11:09:18-04:00
rts: use live words to estimate heap size
We use live words rather than live blocks to determine the size of the
heap for determining memory retention.
Most of the time these two metrics align, but they can come apart in
normal usage when using the nonmoving collector.
The nonmoving collector leads to a lot of partially occupied blocks. So,
using live words is more accurate.
They can also come apart when the heap is suffering from high levels
fragmentation caused by small pinned objects, but in this case, the
block size is the more accurate metric. Since this case is best avoided
anyway. It is ok to accept the trade-off that we might try (and
probably) fail to return more memory in this case.
See also the Note [Statistics for retaining memory]
Resolves #23397
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8dfca66a by Oleg Grenrus at 2024-07-04T11:09:55-04:00
Add reflections of GHC.TypeLits/Nats type families
-------------------------
Metric Increase:
ghc_experimental_dir
ghc_experimental_so
-------------------------
- - - - -
6c469bd2 by Adam Gundry at 2024-07-04T11:10:33-04:00
Correct -Wpartial-fields warning to say "Definition" rather than "Use"
Fixes #24710. The message and documentation for `-Wpartial-fields` were
misleading as (a) the warning occurs at definition sites rather than use
sites, and (b) the warning relates to the definition of a field independently
of the selector function (e.g. because record updates are also partial).
- - - - -
977b6b64 by Max Ulidtko at 2024-07-04T11:11:11-04:00
GHCi: Support local Prelude
Fixes #10920, an issue where GHCi bails out when started alongside a
file named Prelude.hs or Prelude.lhs (even empty file suffices).
The in-source Note [GHCi and local Preludes] documents core reasoning.
Supplementary changes:
* add debug traces for module lookups under -ddump-if-trace;
* drop stale comment in GHC.Iface.Load;
* reduce noise in -v3 traces from GHC.Utils.TmpFs;
* new test, which also exercizes HomeModError.
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87cf4111 by Ryan Scott at 2024-07-04T11:11:47-04:00
Add missing gParPat in cvtp's ViewP case
When converting a `ViewP` using `cvtp`, we need to ensure that the view pattern
is parenthesized so that the resulting code will parse correctly when
roundtripped back through GHC's parser.
Fixes #24894.
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b05613c5 by Adam Gundry at 2024-07-04T11:12:23-04:00
Use structured error representation for module cycle errors (see #18516)
This removes the re-export of cyclicModuleErr from the top-level GHC module.
- - - - -
70389749 by Adam Gundry at 2024-07-04T11:12:23-04:00
Use structured error representation when reloading a nonexistent module
- - - - -
680ade3d by sheaf at 2024-07-04T11:12:23-04:00
Use structured errors for a Backpack instantiation error
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97c6d6de by sheaf at 2024-07-04T11:12:23-04:00
Move mkFileSrcSpan to GHC.Unit.Module.Location
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f9e7bd9b by Adriaan Leijnse at 2024-07-04T11:12:59-04:00
ttg: Remove SourceText from OverloadedLabel
Progress towards #21592
- - - - -
00d63245 by Alexander Foremny at 2024-07-04T11:12:59-04:00
AST: GHC.Prelude -> Prelude
Refactor occurrences to GHC.Prelude with Prelude within
Language/Haskell.
Progress towards #21592
- - - - -
cc846ea5 by Alexander Foremny at 2024-07-04T11:12:59-04:00
AST: remove occurrences of GHC.Unit.Module.ModuleName
`GHC.Unit.Module` re-exports `ModuleName` from
`Language.Haskell.Syntax.Module.Name`.
Progress towards #21592
- - - - -
24c7d287 by Fabian Kirchner at 2024-07-04T11:12:59-04:00
AST: move Data instance definition for ModuleName to GHC.Unit.Types
To remove the dependency on GHC.Utils.Misc inside
Language.Haskell.Syntax.Module.Name, the instance definition is moved
from there into GHC.Unit.Types.
Progress towards #21592
- - - - -
6cbba381 by Fabian Kirchner at 2024-07-04T11:12:59-04:00
AST: move negateOverLitVal into GHC.Hs.Lit
The function negateOverLitVal is not used within Language.Haskell and
therefore can be moved to the respective module inside GHC.Hs.
Progress towards #21592
- - - - -
611aa7c6 by Fabian Kirchner at 2024-07-04T11:12:59-04:00
AST: move conDetailsArity into GHC.Rename.Module
The function conDetailsArity is only used inside GHC.Rename.Module. We
therefore move it there from Language.Haskell.Syntax.Lit.
Progress towards #21592
- - - - -
1b968d16 by Mauricio at 2024-07-04T11:12:59-04:00
AST: Remove GHC.Utils.Assert from GHC
Simple cleanup.
Progress towards #21592
- - - - -
3d192e5d by Fabian Kirchner at 2024-07-04T11:12:59-04:00
ttg: extract Specificity, ForAllTyFlag and helper functions from GHC.Types.Var
Progress towards #21592
Specificity, ForAllTyFlag and its' helper functions are extracted from
GHC.Types.Var and moved into a new module Language.Haskell.Syntax.Specificity.
Note: Eventually (i.e. after Language.Haskell.Syntax.Decls does not depend on
GHC.* anymore) these should be moved into Language.Haskell.Syntax.Decls.
At this point, this would cause cyclic dependencies.
- - - - -
257d1adc by Adowrath at 2024-07-04T11:12:59-04:00
ttg: Split HsSrcBang, remove ref to DataCon from Syntax.Type
Progress towards #21592
This splits HsSrcBang up, creating the new HsBang within
`Language.Haskell.Syntax.Basic`. `HsBang` holds the unpackedness
and strictness information, while `HsSrcBang` only adds the SourceText
for usage within the compiler directly.
Inside the AST, to preserve the SourceText, it is hidden behind the
pre-existing extension point `XBindTy`. All other occurrences of
`HsSrcBang` were adapted to deconstruct the inner `HsBang`, and when
interacting with the `BindTy` constructor, the hidden `SourceText` is
extracted/inserted into the `XBindTy` extension point.
`GHC.Core.DataCon` exports both `HsSrcBang` and `HsBang` for
convenience. A constructor function `mkHsSrcBang` that takes all
individual components has been added.
Two exceptions has been made though:
- The `Outputable HsSrcBang` instance is replaced by
`Outputable HsBang`. While being only GHC-internal, the only place
it's used is in outputting `HsBangTy` constructors -- which already
have `HsBang`. It wouldn't make sense to reconstruct a `HsSrcBang` just
to ignore the `SourceText` anyway.
- The error `TcRnUnexpectedAnnotation` did not use the `SourceText`,
so it too now only holds a `HsBang`.
- - - - -
24757fec by Mauricio at 2024-07-04T11:12:59-04:00
AST: Moved definitions that use GHC.Utils.Panic to GHC namespace
Progress towards #21592
- - - - -
9be49379 by Mike Pilgrem at 2024-07-04T11:13:41-04:00
Fix #25032 Refer to Cabal's `includes` field, not `include-files`
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9e2ecf14 by Andrew Lelechenko at 2024-07-04T11:14:17-04:00
base: fix more missing changelog entries
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a82121b3 by Peter Trommler at 2024-07-04T11:14:53-04:00
X86 NCG: Fix argument promotion in foreign C calls
Promote 8 bit and 16 bit signed arguments by sign extension.
Fixes #25018
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fab13100 by Bryan Richter at 2024-07-04T11:15:29-04:00
Add .gitlab/README.md with creds instructions
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564981bd by Matthew Pickering at 2024-07-05T07:35:29-04:00
configure: Set LD_STAGE0 appropiately when 9.10.1 is used as a boot compiler
In 9.10.1 the "ld command" has been removed, so we fall back to using
the more precise "merge objects command" when it's available as
LD_STAGE0 is only used to set the object merging command in hadrian.
Fixes #24949
- - - - -
a949c792 by Matthew Pickering at 2024-07-05T07:35:29-04:00
hadrian: Don't build ghci object files for ./hadrian/ghci target
There is some convoluted logic which determines whether we build ghci
object files are not. In any case, if you set `ghcDynPrograms = pure
False` then it forces them to be built.
Given we aren't ever building executables with this flavour it's fine
to leave `ghcDynPrograms` as the default and it should be a bit faster
to build less.
Also fixes #24949
- - - - -
48bd8f8e by Matthew Pickering at 2024-07-05T07:36:06-04:00
hadrian: Remove STG dump from ticky_ghc flavour transformer
This adds 10-15 minutes to build time, it is a better strategy to
precisely enable dumps for the modules which show up prominently in a
ticky profile.
Given I am one of the only people regularly building ticky compilers I
think it's worthwhile to remove these.
Fixes #23635
- - - - -
5b1aefb7 by Matthew Pickering at 2024-07-05T07:36:06-04:00
hadrian: Add dump_stg flavour transformer
This allows you to write `--flavour=default+ticky_ghc+dump_stg` if you
really want STG for all modules.
- - - - -
ab2b60b6 by Sven Tennie at 2024-07-08T15:03:41-04:00
AArch64: Simplify stmtToInstrs type
There's no need to hand `Nothing`s around... (there was no case with a
`BlockId`.)
- - - - -
71a7fa8c by Sven Tennie at 2024-07-08T15:03:41-04:00
AArch64: Simplify stmtsToInstrs type
The `BlockId` parameter (`bid`) is never used, only handed around.
Deleting it simplifies the surrounding code.
- - - - -
8bf6fd68 by Simon Peyton Jones at 2024-07-08T15:04:17-04:00
Fix eta-expansion in Prep
As #25033 showed, we were eta-expanding in a way that broke a join point,
which messed up Note [CorePrep invariants].
The fix is rather easy. See Wrinkle (EA1) of
Note [Eta expansion of arguments in CorePrep]
- - - - -
96acf823 by Sjoerd Visscher at 2024-07-09T06:16:14-04:00
One-shot Haddock
- - - - -
74ec4c06 by Sjoerd Visscher at 2024-07-09T06:16:14-04:00
Remove haddock-stdout test option
Superseded by output handling of Hadrian
- - - - -
ed8a8f0b by Rodrigo Mesquita at 2024-07-09T06:16:51-04:00
ghc-boot: Relax Cabal bound
Fixes #25013
- - - - -
3f9548fe by Matthew Pickering at 2024-07-09T06:17:36-04:00
ci: Unset ALEX/HAPPY variables when testing bootstrap jobs
Ticket #24826 reports a regression in 9.10.1 when building from a source
distribution. This patch is an attempt to reproduce the issue on CI by
more aggressively removing `alex` and `happy` from the environment.
- - - - -
aba2c9d4 by Andrea Bedini at 2024-07-09T06:17:36-04:00
hadrian: Ignore build-tool-depends fields in cabal files
hadrian does not utilise the build-tool-depends fields in cabal files
and their presence can cause issues when building source distribution
(see #24826)
Ideally Cabal would support building "full" source distributions which
would remove the need for workarounds in hadrian but for now we can
patch the build-tool-depends out of the cabal files.
Fixes #24826
- - - - -
12bb9e7b by Matthew Pickering at 2024-07-09T06:18:12-04:00
testsuite: Don't attempt to link when checking whether a way is supported
It is sufficient to check that the simple test file compiles as it will
fail if there are not the relevant library files for the requested way.
If you break a way so badly that even a simple executable fails to link
(as I did for profiled dynamic way), it will just mean the tests for
that way are skipped on CI rather than displayed.
- - - - -
46ec0a8e by Torsten Schmits at 2024-07-09T13:37:02+02:00
Improve docs for NondecreasingIndentation
The text stated that this affects indentation of layouts nested in do
expressions, while it actually affects that of do layouts nested in any
other.
- - - - -
dddc9dff by Zubin Duggal at 2024-07-12T11:41:24-04:00
compiler: Fingerprint -fwrite-if-simplified-core
We need to recompile if this flag is changed because later modules might depend on the
simplified core for this module if -fprefer-bytecode is enabled.
Fixes #24656
- - - - -
145a6477 by Matthew Pickering at 2024-07-12T11:42:00-04:00
Add support for building profiled dynamic way
The main payload of this change is to hadrian.
* Default settings will produced dynamic profiled objects
* `-fexternal-interpreter` is turned on in some situations when there is
an incompatibility between host GHC and the way attempting to be
built.
* Very few changes actually needed to GHC
There are also necessary changes to the bootstrap plans to work with the
vendored Cabal dependency. These changes should ideally be reverted by
the next GHC release.
In hadrian support is added for building profiled dynamic libraries
(nothing too exciting to see there)
Updates hadrian to use a vendored Cabal submodule, it is important that
we replace this usage with a released version of Cabal library before
the 9.12 release.
Fixes #21594
-------------------------
Metric Increase:
libdir
-------------------------
- - - - -
414a6950 by Matthew Pickering at 2024-07-12T11:42:00-04:00
testsuite: Make find_so regex more precise
The hash contains lowercase [a-z0-9] and crucially not _p which meant we
sometimes matched on `libHS.._p` profiled shared libraries rather than
the normal shared library.
- - - - -
dee035bf by Alex Mason at 2024-07-12T11:42:41-04:00
ncg(aarch64): Add fsqrt instruction, byteSwap primitives [#24956]
Implements the FSQRT machop using native assembly rather than a C call.
Implements MO_BSwap by producing assembly to do the byte swapping
instead of producing a foreign call a C function.
In `tar`, the hot loop for `deserialise` got almost 4x faster by
avoiding the foreign call which caused spilling live variables to the
stack -- this means the loop did 4x more memory read/writing than
necessary in that particular case!
- - - - -
5104ee61 by Sylvain Henry at 2024-07-12T11:43:23-04:00
Linker: use m32 allocator for sections when NEED_PLT (#24432)
Use M32 allocator to avoid fragmentation when allocating ELF sections.
We already did this when NEED_PLT was undefined. Failing to do this led
to relocations impossible to fulfil (#24432).
- - - - -
52d66984 by Sylvain Henry at 2024-07-12T11:43:23-04:00
RTS: allow M32 allocation outside of 4GB range when assuming -fPIC
- - - - -
c34fef56 by Sylvain Henry at 2024-07-12T11:43:23-04:00
Linker: fix stub offset
Remove unjustified +8 offset that leads to memory corruption (cf
discussion in #24432).
- - - - -
280e4bf5 by Simon Peyton Jones at 2024-07-12T11:43:59-04:00
Make type-equality on synonyms a bit faster
This MR make equality fast for (S tys1 `eqType` S tys2),
where S is a non-forgetful type synonym.
It doesn't affect compile-time allocation much, but then comparison doesn't
allocate anyway. But it seems like a Good Thing anyway.
See Note [Comparing type synonyms] in GHC.Core.TyCo.Compare
and Note [Forgetful type synonyms] in GHC.Core.TyCon
Addresses #25009.
- - - - -
cb83c347 by Alan Zimmerman at 2024-07-12T11:44:35-04:00
EPA: Bring back SrcSpan in EpaDelta
When processing files in ghc-exactprint, the usual workflow is to
first normalise it with makeDeltaAst, and then operate on it.
But we need the original locations to operate on it, in terms of
finding things.
So restore the original SrcSpan for reference in EpaDelta
- - - - -
7bcda869 by Matthew Pickering at 2024-07-12T11:45:11-04:00
Update alpine release job to 3.20
alpine 3.20 was recently released and uses a new python and sphinx
toolchain which could be useful to test.
- - - - -
43aa99b8 by Matthew Pickering at 2024-07-12T11:45:11-04:00
testsuite: workaround bug in python-3.12
There is some unexplained change to binding behaviour in python-3.12
which requires moving this import from the top-level into the scope of
the function.
I didn't feel any particular desire to do a deep investigation as to why
this changed as the code works when modified like this. No one in the
python IRC channel seemed to know what the problem was.
- - - - -
e3914028 by Adam Sandberg Ericsson at 2024-07-12T11:45:47-04:00
initialise mmap_32bit_base during RTS startup #24847
- - - - -
86b8ecee by Hécate Kleidukos at 2024-07-12T11:46:27-04:00
haddock: Only fetch supported languages and extensions once per Interface list
This reduces the number of operations done on each Interface, because
supported languages and extensions are determined from architecture and
operating system of the build host. This information remains stable
across Interfaces, and as such doesn not need to be recovered for each
Interface.
- - - - -
4f85366f by sheaf at 2024-07-13T05:58:14-04:00
Testsuite: use py-cpuinfo to compute CPU features
This replaces the rather hacky logic we had in place for checking
CPU features. In particular, this means that feature availability now
works properly on Windows.
- - - - -
41f1354d by Matthew Pickering at 2024-07-13T05:58:51-04:00
testsuite: Replace $CC with $TEST_CC
The TEST_CC variable should be set based on the test compiler, which may
be different to the compiler which is set to CC on your system (for
example when cross compiling).
Fixes #24946
- - - - -
572fbc44 by sheaf at 2024-07-15T08:30:32-04:00
isIrrefutableHsPat: consider COMPLETE pragmas
This patch ensures we taken into account COMPLETE pragmas when we
compute whether a pattern is irrefutable. In particular, if a pattern
synonym is the sole member of a COMPLETE pragma (without a result TyCon),
then we consider a pattern match on that pattern synonym to be irrefutable.
This affects the desugaring of do blocks, as it ensures we don't use
a "fail" operation.
Fixes #15681 #16618 #22004
- - - - -
84dadea9 by Zubin Duggal at 2024-07-15T08:31:09-04:00
haddock: Handle non-hs files, so that haddock can generate documentation for modules with
foreign imports and template haskell.
Fixes #24964
- - - - -
0b4ff9fa by Zubin Duggal at 2024-07-15T12:12:30-04:00
haddock: Keep track of warnings/deprecations from dependent packages in `InstalledInterface`
and use this to propagate these on items re-exported from dependent packages.
Fixes #25037
- - - - -
b8b4b212 by Zubin Duggal at 2024-07-15T12:12:30-04:00
haddock: Keep track of instance source locations in `InstalledInterface` and use this to add
source locations on out of package instances
Fixes #24929
- - - - -
559a7a7c by Matthew Pickering at 2024-07-15T12:13:05-04:00
ci: Refactor job_groups definition, split up by platform
The groups are now split up so it's easier to see which jobs are
generated for each platform
No change in behaviour, just refactoring.
- - - - -
20383006 by Matthew Pickering at 2024-07-16T11:48:25+01:00
ci: Replace debian 10 with debian 12 on validation jobs
Since debian 10 is now EOL we migrate onwards to debian 12 as the basis
for most platform independent validation jobs.
- - - - -
12d3b66c by Matthew Pickering at 2024-07-17T13:22:37-04:00
ghcup-metadata: Fix use of arch argument
The arch argument was ignored when making the jobname, which lead to
failures when generating metadata for the alpine_3_18-aarch64 bindist.
Fixes #25089
- - - - -
bace981e by Matthew Pickering at 2024-07-19T10:14:02-04:00
testsuite: Delay querying ghc-pkg to find .so dirs until test is run
The tests which relied on find_so would fail when `test` was run
before the tree was built. This was because `find_so` was evaluated too
eagerly.
We can fix this by waiting to query the location of the libraries until
after the compiler has built them.
- - - - -
478de1ab by Torsten Schmits at 2024-07-19T10:14:37-04:00
Add `complete` pragmas for backwards compat patsyns `ModLocation` and `ModIface`
!12347 and !12582 introduced breaking changes to these two constructors
and mitigated that with pattern synonyms.
- - - - -
b57792a8 by Matthew Pickering at 2024-07-19T10:15:13-04:00
ci: Fix ghcup-metadata generation (again)
I made some mistakes in 203830065b81fe29003c1640a354f11661ffc604
* Syntax error
* The aarch-deb11 bindist doesn't exist
I tested against the latest nightly pipeline locally:
```
nix run .gitlab/generate-ci#generate-job-metadata
nix shell -f .gitlab/rel_eng/ -c ghcup-metadata --pipeline-id 98286 --version 9.11.20240715 --fragment --date 2024-07-17 --metadata=/tmp/meta
```
- - - - -
1fa35b64 by Andreas Klebinger at 2024-07-19T17:35:20+02:00
Revert "Allow non-absolute values for bootstrap GHC variable"
This broke configure in subtle ways resulting in #25076 where hadrian
didn't end up the boot compiler it was configured to use.
This reverts commit 209d09f52363b261b900cf042934ae1e81e2caa7.
- - - - -
55117e13 by Simon Peyton Jones at 2024-07-24T02:41:12-04:00
Fix bad bug in mkSynonymTyCon, re forgetfulness
As #25094 showed, the previous tests for forgetfulness was
plain wrong, when there was a forgetful synonym in the RHS
of a synonym.
- - - - -
a8362630 by Sergey Vinokurov at 2024-07-24T12:22:45-04:00
Define Eq1, Ord1, Show1 and Read1 instances for basic Generic representation types
This way the Generically1 newtype could be used to derive Eq1 and Ord1
for user types with DerivingVia.
The CLC proposal is https://github.com/haskell/core-libraries-committee/issues/273.
The GHC issue is https://gitlab.haskell.org/ghc/ghc/-/issues/24312.
- - - - -
de5d9852 by Simon Peyton Jones at 2024-07-24T12:23:22-04:00
Address #25055, by disabling case-of-runRW# in Gentle phase
See Note [Case-of-case and full laziness]
in GHC.Driver.Config.Core.Opt.Simplify
- - - - -
3f89ab92 by Andreas Klebinger at 2024-07-25T14:12:54+02:00
Fix -freg-graphs for FP and AARch64 NCG (#24941).
It seems we reserve 8 registers instead of four for global regs
based on the layout in Note [AArch64 Register assignments].
I'm not sure it's neccesary, but for now we just accept this state of
affairs and simple update -fregs-graph to account for this.
- - - - -
f6b4c1c9 by Simon Peyton Jones at 2024-07-27T09:45:44-04:00
Fix nasty bug in occurrence analyser
As #25096 showed, the occurrence analyser was getting one-shot info
flat out wrong.
This commit does two things:
* It fixes the bug and actually makes the code a bit tidier too.
The work is done in the new function
GHC.Core.Opt.OccurAnal.mkRhsOccEnv,
especially the bit that prepares the `occ_one_shots` for the RHS.
See Note [The OccEnv for a right hand side]
* When floating out a binding we must be conservative about one-shot
info. But we were zapping the entire demand info, whereas we only
really need zap the /top level/ cardinality.
See Note [Floatifying demand info when floating]
in GHC.Core.Opt.SetLevels
For some reason there is a 2.2% improvement in compile-time allocation
for CoOpt_Read. Otherwise nickels and dimes.
Metric Decrease:
CoOpt_Read
- - - - -
646ee207 by Torsten Schmits at 2024-07-27T09:46:20-04:00
add missing cell in flavours table
- - - - -
ec2eafdb by Ben Gamari at 2024-07-28T20:51:12+02:00
users-guide: Drop mention of dead __PARALLEL_HASKELL__ macro
This has not existed for over a decade.
- - - - -
e2f2a56e by Arnaud Spiwack at 2024-07-28T22:21:07-04:00
Add tests for 25081
- - - - -
23f50640 by Arnaud Spiwack at 2024-07-28T22:21:07-04:00
Scale multiplicity in list comprehension
Fixes #25081
- - - - -
d2648289 by romes at 2024-07-30T01:38:12-04:00
TTG HsCmdArrForm: use Fixity via extension point
Also migrate Fixity from GHC.Hs to Language.Haskell.Syntax
since it no longer uses any GHC-specific data types.
Fixed arrow desugaring bug. (This was dead code before.)
Remove mkOpFormRn, it is also dead code, only used in the arrow
desugaring now removed.
Co-authored-by: Fabian Kirchner <kirchner at posteo.de>
Co-authored-by: Alan Zimmerman <alan.zimm at gmail.com>
- - - - -
e258ad54 by Matthew Pickering at 2024-07-30T01:38:48-04:00
ghcup-metadata: More metadata fixes
* Incorrect version range on the alpine bindists
* Missing underscore in "unknown_versioning"
Fixes #25119
- - - - -
72b54c07 by Rodrigo Mesquita at 2024-08-01T00:47:29-04:00
Deriving-via one-shot strict state Monad instances
A small refactor to use deriving via GHC.Utils.Monad.State.Strict
Monad instances for state Monads with unboxed/strict results which all
re-implemented the one-shot trick in the instance and used unboxed
tuples:
* CmmOptM in GHC.Cmm.GenericOpt
* RegM in GHC.CmmToAsm.Reg.Linear.State
* UniqSM in GHC.Types.Unique.Supply
- - - - -
bfe4b3d3 by doyougnu at 2024-08-01T00:48:06-04:00
Rts linker: add case for pc-rel 64 relocation
part of the upstream haskell.nix patches
- - - - -
5843c7e3 by doyougnu at 2024-08-01T00:48:42-04:00
RTS linker: aarch64: better debug information
Dump better debugging information when a symbol address is null.
Part of the haskell.nix patches upstream project
Co-authored-by: Sylvain Henry <sylvain at haskus.fr>
- - - - -
c2e9c581 by Rodrigo Mesquita at 2024-08-01T00:49:18-04:00
base: Add haddocks to HasExceptionContext
Fixes #25091
- - - - -
f954f428 by Sylvain Henry at 2024-08-01T00:49:59-04:00
Only lookup ghcversion.h file in the RTS include-dirs by default.
The code was introduced in 3549c952b535803270872adaf87262f2df0295a4.
It used `getPackageIncludePath` which name doesn't convey that it looks
into all include paths of the preload units too. So this behavior is
probably unintentional and it should be ok to change it.
Fix #25106
- - - - -
951ce3d5 by Matthew Pickering at 2024-08-01T00:50:35-04:00
driver: Fix -Wmissing-home-modules when multiple units have the same module name
It was assumed that module names were unique but that isn't true with
multiple units.
The fix is quite simple, maintain a set of `(ModuleName, UnitId)` and
query that to see whether the module has been specified.
Fixes #25122
- - - - -
bae1fea4 by sheaf at 2024-08-01T00:51:15-04:00
PMC: suggest in-scope COMPLETE sets when possible
This commit modifies GHC.HsToCore.Pmc.Solver.generateInhabitingPatterns
to prioritise reporting COMPLETE sets in which all of the ConLikes
are in scope. This avoids suggesting out of scope constructors
when displaying an incomplete pattern match warning, e.g. in
baz :: Ordering -> Int
baz = \case
EQ -> 5
we prefer:
Patterns of type 'Ordering' not matched:
LT
GT
over:
Patterns of type 'Ordering' not matched:
OutOfScope
Fixes #25115
- - - - -
ff158fcd by Tommy Bidne at 2024-08-02T01:14:32+12:00
Print exception metadata in default handler
CLC proposals 231 and 261:
- Add exception type metadata to SomeException's displayException.
- Add "Exception" header to default exception handler.
See:
https://github.com/haskell/core-libraries-committee/issues/231
https://github.com/haskell/core-libraries-committee/issues/261
Update stm submodule for test fixes.
- - - - -
8b2f70a2 by Andrei Borzenkov at 2024-08-01T23:00:46-04:00
Type syntax in expressions (#24159, #24572, #24226)
This patch extends the grammar of expressions with syntax that is
typically found only in types:
* function types (a -> b), (a ->. b), (a %m -> b)
* constrained types (ctx => t)
* forall-quantification (forall tvs. t)
The new forms are guarded behind the RequiredTypeArguments extension,
as specified in GHC Proposal #281. Examples:
{-# LANGUAGE RequiredTypeArguments #-}
e1 = f (Int -> String) -- function type
e2 = f (Int %1 -> String) -- linear function type
e3 = f (forall a. Bounded a => a) -- forall type, constraint
The GHC AST and the TH AST have been extended as follows:
syntax | HsExpr | TH.Exp
---------------+----------+--------------
a -> b | HsFunArr | ConE (->)
a %m -> b | HsFunArr | ConE FUN
ctx => t | HsQual | ConstrainedE
forall a. t | HsForAll | ForallE
forall a -> t | HsForAll | ForallVisE
Additionally, a new warning flag -Wview-pattern-signatures has been
introduced to aid with migration to the new precedence of (e -> p :: t).
Co-authored-by: Vladislav Zavialov <vlad.z.4096 at gmail.com>
- - - - -
66e7f57d by Brandon Chinn at 2024-08-01T21:50:58-07:00
Implement MultilineStrings (#24390)
This commit adds support for multiline strings, proposed at
https://github.com/ghc-proposals/ghc-proposals/pull/569.
Multiline strings can now be written as:
myString =
"""
this is a
multiline string
"""
The multiline string will have leading indentation stripped away.
Full details of this post-processing may be found at the new
GHC.Parser.String module.
In order to cleanly implement this and maximize reusability, I
broke out the lexing logic for strings out of Lexer.x into a
new GHC.Parser.String module, which lexes strings with any
provided "get next character" function. This also gave us the
opportunity to clean up this logic, and even optimize it a bit.
With this change, parsing string literals now takes 25% less
time and 25% less space.
- - - - -
cf47b96f by Rodrigo Mesquita at 2024-08-03T05:59:40-04:00
hi: Stable sort avails
Sorting the Avails in DocStructures is required to produce fully
deterministic interface files in presence of re-exported modules.
Fixes #25104
- - - - -
af2ae742 by M. Taimoor Zaeem at 2024-08-03T18:52:50+05:00
haddock: decrease margin on top of small headings
- - - - -
a1e42e7a by Rodrigo Mesquita at 2024-08-05T21:03:04-04:00
hi: Deterministic ImportedMods in Usages
The `mi_usages` field of the interface files must use a deterministic
list of `Usage`s to guarantee a deterministic interface. However, this
list was, in its origins, constructed from a `ModuleEnv` which uses a
non-deterministic ordering that was leaking into the interface.
Specifically, ImportedMods = ModuleEnv ... would get converted to a list and
then passed to `mkUsageInfo` to construct the Usages.
The solution is simple. Back `ImportedMods` with a deterministic map.
`Map Module ...` is enough, since the Ord instance for `Module` already
uses a stable, deterministic, comparison.
Fixes #25131
- - - - -
eb1cb536 by Serge S. Gulin at 2024-08-06T08:54:55+00:00
testsuite: extend size performance tests with gzip (fixes #25046)
The main purpose is to create tests for minimal app (hello world and its variations, i.e. unicode used) distribution size metric.
Many platforms support distribution in compressed form via gzip. It would be nice to collect information on how much size is taken by the executional bundle for each platform at minimal edge case.
2 groups of tests are added:
1. We extend javascript backend size tests with gzip-enabled versions for all cases where an optimizing compiler is used (for now it is google closure compiler).
2. We add trivial hello world tests with gzip-enabled versions for all other platforms at CI pipeline where no external optimizing compiler is used.
- - - - -
d94410f8 by Rodrigo Mesquita at 2024-08-07T11:49:19-04:00
ghc-internal: @since for backtraceDesired
Fixes point 1 in #25052
- - - - -
bfe600f5 by Rodrigo Mesquita at 2024-08-07T11:49:19-04:00
ghc-internal: No trailing whitespace in exceptions
Fixes #25052
- - - - -
62650d9f by Andreas Klebinger at 2024-08-07T11:49:54-04:00
Add since annotation for -fkeep-auto-rules.
This partially addresses #25082.
- - - - -
5f0e23fd by Andreas Klebinger at 2024-08-07T11:49:54-04:00
Mention `-fkeep-auto-rules` in release notes.
It was added earlier but hadn't appeared in any release notes yet.
Partially addresses #25082.
- - - - -
7446a09a by Sylvain Henry at 2024-08-07T11:50:35-04:00
Cmm: don't perform unsound optimizations on 32-bit compiler hosts
- beef61351b240967b49169d27a9a19565cf3c4af enabled the use of
MO_Add/MO_Sub for 64-bit operations in the C and LLVM backends
- 6755d833af8c21bbad6585144b10e20ac4a0a1ab did the same for the x86 NCG
backend
However we store some literal values as `Int` in the compiler. As a
result, some Cmm optimizations transformed target 64-bit literals into
compiler `Int`. If the compiler is 32-bit, this leads to computing with
wrong literals (see #24893 and #24700).
This patch disables these Cmm optimizations for 32-bit compilers. This
is unsatisfying (optimizations shouldn't be compiler-word-size
dependent) but it fixes the bug and it makes the patch easy to backport.
A proper fix would be much more invasive but it shall be implemented in
the future.
Co-authored-by: amesgen <amesgen at amesgen.de>
- - - - -
d59faaf2 by Vladislav Zavialov at 2024-08-07T11:51:11-04:00
docs: Update info on RequiredTypeArguments
Add a section on "types in terms" that were implemented in 8b2f70a202
and remove the now outdated suggestion of using `type` for them.
- - - - -
39fd6714 by Sylvain Henry at 2024-08-07T11:51:52-04:00
JS: fix minor typo in base's jsbits
- - - - -
e7764575 by Sylvain Henry at 2024-08-07T11:51:52-04:00
RTS: remove hack to force old cabal to build a library with only JS sources
Need to extend JSC externs with Emscripten RTS definitions to avoid
JSC_UNDEFINED_VARIABLE errors when linking without the emcc rts.
Fix #25138
Some recompilation avoidance tests now fail. This is tracked with the
other instances of this failure in #23013. My hunch is that they were
working by chance when we used the emcc linker.
Metric Decrease:
T24602_perf_size
- - - - -
d1a40233 by Brandon Chinn at 2024-08-07T11:53:08-04:00
Support multiline strings in type literals (#25132)
- - - - -
610840eb by Sylvain Henry at 2024-08-07T11:53:50-04:00
JS: fix callback documentation (#24377)
Fix #24377
- - - - -
6ae4b76a by Zubin Duggal at 2024-08-13T13:36:57-04:00
haddock: Build haddock-api and haddock-library using hadrian
We build these two packages as regular boot library dependencies rather
than using the `in-ghc-tree` flag to include the source files into the haddock
executable.
The `in-ghc-tree` flag is moved into haddock-api to ensure that haddock built
from hackage can still find the location of the GHC bindist using `ghc-paths`.
Addresses #24834
This causes a metric decrease under non-release flavours because under these
flavours libraries are compiled with optimisation but executables are not.
Since we move the bulk of the code from the haddock executable to the
haddock-api library, we see a metric decrease on the validate flavours.
Metric Decrease:
haddock.Cabal
haddock.base
haddock.compiler
- - - - -
51ffba5d by Arnaud Spiwack at 2024-08-13T13:37:50-04:00
Add an extension field to HsRecFields
This is the Right Thing to Do™. And it prepares for storing a
multiplicity coercion there.
First step of the plan outlined here and below
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/12947#note_573091
- - - - -
4d2faeeb by Arnaud Spiwack at 2024-08-13T13:37:50-04:00
Add test for #24961
- - - - -
623b4337 by Arnaud Spiwack at 2024-08-13T13:37:50-04:00
Ensures that omitted record fields in pattern have multiplicity Many
Omitted fields were simply ignored in the type checker and produced
incorrect Core code.
Fixes #24961
Metric Increase:
RecordUpdPerf
- - - - -
c749bdfd by Sylvain Henry at 2024-08-13T13:38:41-04:00
AARCH64 linker: skip NONE relocations
This patch is part of the patches upstreamed from haskell.nix.
See https://github.com/input-output-hk/haskell.nix/pull/1960 for the
original report/patch.
- - - - -
682a6a41 by Brandon Chinn at 2024-08-13T13:39:17-04:00
Support multiline strings in TH
- - - - -
ee0a9c18 by Matthew Pickering at 2024-08-14T14:27:39-04:00
Extend -reexported-module flag to support module renaming
The -reexported-module flag now supports renaming -rexported-modules.
```
-rexported-module "A as B"
```
This feature is only relevant to multi-component sessions.
Fixes #25139
- - - - -
e9496000 by Arnaud Spiwack at 2024-08-14T14:28:20-04:00
Don't restrict eta-reduction of linear functions
This commit simply removes code. All the supporting implementation has
been done as part of !12883.
Closes #25129
- - - - -
2bb4156e by sheaf at 2024-08-14T14:28:56-04:00
Allow @ character in C labels
Generated symbol names can include the '@' character, for example when using
`__attribute__((vectorcall))`.
- - - - -
7602ca23 by Sylvain Henry at 2024-08-14T14:29:36-04:00
Linker: replace blind tuple with a datatype + docs
- - - - -
bdd77b9e by sheaf at 2024-08-16T12:47:11-04:00
isIrrefutableHsPat: look up ConLikes in the HscEnv
At GhcRn stage, in isIrrefutableHsPat we only looked up data constructors
in the RdrEnv, which meant that we lacked fallibility information for
out-of-scope constructors (which can arise from Template Haskell splices).
Instead, we use 'lookupGREInfo', which looks up the information in
the type environment. This was the correct function to call all along,
but was not used in 572fbc44 due to import cycle reasons. The appropriate
functions, 'irrefutableConLike{Rn,Tc}' have been moved to 'GHC.Rename.Env',
which avoids import cycles.
Fixes #25164
- - - - -
4bee377c by Sylvain Henry at 2024-08-16T12:47:53-04:00
Linker: some refactoring to prepare for #24886
- Rename LoadedBCOs into LazyBCOs
- Bundle SptEntries with CompiledByteCode and removed [SptEntry] field
from the BCOs constructor
- Rename Linkable's LM constructor into Linkable: in the past we had LM
and LP for Module and Package, now we only have the former.
- Rename Unlinked into LinkablePart (and linkableUnlinked into
linkableParts)
- Use NonEmpty to encode invariant in Linkable's linkableParts type
- Add helpers: linkableLibs, linkableBCOs, etc.
- Add documentation
- Remove partial nameOfObject
- Rename nameOfObject_maybe into linkablePartPath
- Rename byteCodeOfObject into linkablePartAllBCOs.
- Refactor linkablePartAllBCOs to avoid a panic if a LazyBCO has a C
stub. Document the fact that LazyBCOs are returned in this case
(contrary to linkableBCOs which only returns non-lazy ones)
Refactoring done while trying to understand how to adapt the linker code
to support the JS backend too (cf #24886).
- - - - -
fa0dbaca by Mario Blažević at 2024-08-17T03:31:32+00:00
Implements the Exportable Named Default proposal (#24305)
This squashed commit adds support for exportable named defaults, the accepted
GHC proposal at https://github.com/ghc-proposals/ghc-proposals/pull/409
The proposal extends the Haskell '98 declarations
default (Int, Double)
which were implicitly always applying to Num class alone, to allow specifying
an arbitrary single-parameter class:
default IsString (Text, String)
The effect of this declaration would be to eliminate the ambiguous type errors
around string literals when OverloadedStrings extension is active. The
declaration by itself has effect only in its module, so the proposal also adds
the ability to export class defaults:
module MyModule (default IsIstring)
Once the language extension is published and established, we can consider using
it in base and other libraries.
See Note [Named default declarations] in GHC.Tc.Gen.Default
for implementation details.
- - - - -
1deba6b2 by Simon Peyton Jones at 2024-08-17T13:58:13-04:00
Make kick-out more selective
This MR revised the crucial kick-out criteria in the constraint solver.
Ticket #24984 showed an example in which
* We were kicking out unnecessarily
* That gave rise to extra work, of course
* But it /also/ led to exponentially-sized coercions due to lack
of sharing in coercions (something we want to fix separately #20264)
This MR sharpens up the kick-out criteria; specifially in (KK2) we look
only under type family applications if (fs>=fw).
This forced me to understand the existing kick-out story, and I ended
up rewriting many of the careful Notes in GHC.Tc.Solver.InertSet.
Especially look at the new `Note [The KickOut Criteria]`
The proof of termination is not air-tight, but it is better than before,
and both Richard and I think it's correct :-).
- - - - -
88488847 by Cheng Shao at 2024-08-18T04:44:01+02:00
testsuite: remove undesired -fasm flag from test ways
This patch removes the -fasm flag from test ways, except ways like
optasm that explicitly state they are meant to be compiled with NCG
backend. Most test ways should use the default codegen backend, and
the precense of -fasm can cause stderr mismatches like this when GHC
is configured with the unregisterised backend:
```
--- /dev/null
+++ /tmp/ghctest-3hydwldj/test spaces/testsuite/tests/profiling/should_compile/prof-late-cc.run/prof-late-cc.comp.stderr.normalised
@@ -0,0 +1,2 @@
+when making flags consistent: warning: [GHC-74335] [-Winconsistent-flags (in -Wdefault)]
+ Target platform uses unregisterised ABI, so compiling via C
*** unexpected failure for prof-late-cc(prof_no_auto)
```
This has been breaking the wasm unreg nightly job since !12595 landed.
- - - - -
3a145315 by Cheng Shao at 2024-08-18T13:05:45-04:00
ghci: fix isMinTTY.h casing for Windows targets
This commit fixes isMinTTY.h casing in isMinTTY.c that's compiled for
Windows targets. While this looks harmless given Windows filesystems
are case-insensitive by default, it does cause a compilation warning
with recent versions of clang, so we might as well fix the casing:
```
driver\ghci\isMinTTY.c:10:10: error:
warning: non-portable path to file '"isMinTTY.h"'; specified path differs in case from file name on disk [-Wnonportable-include-path]
|
10 | #include "isMINTTY.h"
| ^
#include "isMINTTY.h"
^~~~~~~~~~~~
"isMinTTY.h"
1 warning generated.
```
- - - - -
5f972bfb by Zubin Duggal at 2024-08-21T03:18:15-04:00
compiler: Fix pretty printing of ticked prefix constructors (#24237)
- - - - -
ef0a08e7 by Mike Pilgrem at 2024-08-21T03:18:57-04:00
Fix #15773 Clarify further -rtsopts 'defaults' in docs
- - - - -
05a4be58 by Sebastian Graf at 2024-08-21T03:19:33-04:00
Improve efficiency of `assertError` (#24625)
... by moving `lazy` to the exception-throwing branch.
It's all documented in `Note [Strictness of assertError]`.
- - - - -
c29b2b5a by sheaf at 2024-08-21T13:11:30-04:00
GHCi debugger: drop record name spaces for Ids
When binding new local variables at a breakpoint, we should create
Ids with variable namespace, and not record field namespace. Otherwise
the rest of the compiler falls over because the IdDetails are wrong.
Fixes #25109
- - - - -
bd82ac9f by Hécate Kleidukos at 2024-08-21T13:12:12-04:00
base: Final deprecation of GHC.Pack
The timeline mandated by #21461 has come to its term and after two years
and four minor releases, we are finally removing GHC.Pack from base.
Closes #21536
- - - - -
5092dbff by Sylvain Henry at 2024-08-21T13:12:54-04:00
JS: support rubbish static literals (#25177)
Support for rubbish dynamic literals was added in #24664. This patch
does the same for static literals.
Fix #25177
- - - - -
b5a2c061 by Phil de Joux at 2024-08-21T13:13:33-04:00
haddock docs: prefix comes before, postfix comes after
- - - - -
6fde3685 by Marcin Szamotulski at 2024-08-21T23:15:39-04:00
haddock: include package info with --show-interface
- - - - -
7e02111b by Andreas Klebinger at 2024-08-21T23:16:15-04:00
Document the (x86) SIMD macros.
Fixes #25021.
- - - - -
05116c83 by Rodrigo Mesquita at 2024-08-22T10:37:44-04:00
ghc-internal: Derive version from ghc's version
Fixes #25005
- - - - -
73f5897d by Ben Gamari at 2024-08-22T10:37:44-04:00
base: Deprecate GHC.Desugar
See https://github.com/haskell/core-libraries-committee/issues/216.
This will be removed in GHC 9.14.
- - - - -
821d0a9a by Cheng Shao at 2024-08-22T10:38:22-04:00
compiler: Store ForeignStubs and foreign C files in interfaces
This data is used alongside Core bindings to reconstruct intermediate
build products when linking Template Haskell splices with bytecode.
Since foreign stubs and files are generated in the pipeline, they were
lost with only Core bindings stored in interfaces.
The interface codec type `IfaceForeign` contains a simplified
representation of `ForeignStubs` and the set of foreign sources that
were manually added by the user.
When the backend phase writes an interface, `mkFullIface` calls
`encodeIfaceForeign` to read foreign source file contents and assemble
`IfaceForeign`.
After the recompilation status check of an upstream module,
`initWholeCoreBindings` calls `decodeIfaceForeign` to restore
`ForeignStubs` and write the contents of foreign sources to the file
system as temporary files.
The restored foreign inputs are then processed by `hscInteractive` in
the same manner as in a regular pipeline.
When linking the stub objects for splices, they are excluded from suffix
adjustment for the interpreter way through a new flag in `Unlinked`.
For details about these processes, please consult Note [Foreign stubs
and TH bytecode linking].
Metric Decrease:
T13701
- - - - -
f0408eeb by Cheng Shao at 2024-08-23T10:37:10-04:00
git: remove a.out and include it in .gitignore
a.out is a configure script byproduct. It was mistakenly checked into
the tree in !13118. This patch removes it, and include it in
.gitignore to prevent a similar error in the future.
- - - - -
1f95c5e4 by Matthew Pickering at 2024-08-23T10:37:46-04:00
docs: Fix code-block syntax on old sphinx version
This code-block directive breaks the deb9 sphinx build.
Fixes #25201
- - - - -
27dceb42 by Sylvain Henry at 2024-08-26T11:05:11-04:00
JS: add basic support for POSIX *at functions (#25190)
openat/fstatat/unlinkat/dup are now used in the recent release of the
`directory` and `file-io` packages.
As such, these functions are (indirectly) used in the following tests
one we'll bump the `directory` submodule (see !13122):
- openFile008
- jsOptimizer
- T20509
- bkpcabal02
- bkpcabal03
- bkpcabal04
- - - - -
c68be356 by Matthew Pickering at 2024-08-26T11:05:11-04:00
Update directory submodule to latest master
The primary reason for this bump is to fix the warning from `ghc-pkg
check`:
```
Warning: include-dirs: /data/home/ubuntu/.ghcup/ghc/9.6.2/lib/ghc-9.6.2/lib/../lib/aarch64-linux-ghc-9.6.2/directory-1.3.8.1/include doesn't exist or isn't a directory
```
This also requires adding the `file-io` package as a boot library (which
is discussed in #25145)
Fixes #23594 #25145
- - - - -
4ee094d4 by Matthew Pickering at 2024-08-26T11:05:47-04:00
Fix aarch64-alpine target platform description
We are producing bindists where the target triple is
aarch64-alpine-linux
when it should be
aarch64-unknown-linux
This is because the bootstrapped compiler originally set the target
triple to `aarch64-alpine-linux` which is when propagated forwards by
setting `bootstrap_target` from the bootstrap compiler target.
In order to break this chain we explicitly specify build/host/target for
aarch64-alpine.
This requires a new configure flag `--enable-ignore-` which just
switches off a validation check that the target platform of the
bootstrap compiler is the same as the build platform. It is the same,
but the name is just wrong.
These commits can be removed when the bootstrap compiler has the correct
target triple (I looked into patching this on ci-images, but it looked
hard to do correctly as the build/host platform is not in the settings
file).
Fixes #25200
- - - - -
e0e0f2b2 by Matthew Pickering at 2024-08-26T11:05:47-04:00
Bump nixpkgs commit for gen_ci script
- - - - -
63a27091 by doyougnu at 2024-08-26T20:39:30-04:00
rts: win32: emit additional debugging information
-- migration from haskell.nix
- - - - -
aaab3d10 by Vladislav Zavialov at 2024-08-26T20:40:06-04:00
Only export defaults when NamedDefaults are enabled (#25206)
This is a reinterpretation of GHC Proposal #409 that avoids a breaking
change introduced in fa0dbaca6c "Implements the Exportable Named Default proposal"
Consider a module M that has no explicit export list:
module M where
default (Rational)
Should it export the default (Rational)?
The proposal says "yes", and there's a test case for that:
default/DefaultImport04.hs
However, as it turns out, this change in behavior breaks existing
programs, e.g. the colour-2.3.6 package can no longer be compiled,
as reported in #25206.
In this patch, we make implicit exports of defaults conditional on
the NamedDefaults extension. This fix is unintrusive and compliant
with the existing proposal text (i.e. it does not require a proposal
amendment). Should the proposal be amended, we can go for a simpler
solution, such as requiring all defaults to be exported explicitly.
Test case: testsuite/tests/default/T25206.hs
- - - - -
3a5bebf8 by Matthew Pickering at 2024-08-28T14:16:42-04:00
simplifier: Fix space leak during demand analysis
The lazy structure (a list) in a strict field in `DmdType` is not fully
forced which leads to a very large thunk build-up.
It seems there is likely still more work to be done here as it seems we
may be trading space usage for work done. For now, this is the right
choice as rather than using all the memory on my computer, compilation
just takes a little bit longer.
See #25196
- - - - -
c2525e9e by Ryan Scott at 2024-08-28T14:17:17-04:00
Add missing parenthesizeHsType in cvtp's InvisP case
We need to ensure that when we convert an `InvisP` (invisible type pattern) to
a `Pat`, we parenthesize it (at precedence `appPrec`) so that patterns such as
`@(a :: k)` will parse correctly when roundtripped back through the parser.
Fixes #25209.
- - - - -
e31963ae by Cheng Shao at 2024-09-03T13:47:28+00:00
rts: fix checkClosure error message
This patch fixes an error message in checkClosure() when the closure
has already been evacuated. The previous logic was meant to print the
evacuated closure's type in the error message, but it was completely
wrong, given info was not really an info table, but a tagged pointer
that points to the closure's new address.
- - - - -
23 changed files:
- .gitignore
- .gitlab-ci.yml
- + .gitlab/README.md
- .gitlab/ci.sh
- .gitlab/darwin/nix/sources.json
- .gitlab/darwin/toolchain.nix
- .gitlab/generate-ci/flake.lock
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
- .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
- .gitmodules
- CODEOWNERS
- compiler/GHC.hs
- compiler/GHC/Builtin/Names.hs
- compiler/GHC/Builtin/Names/TH.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/Utils.hs
- compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/ByteCode/Instr.hs
- compiler/GHC/ByteCode/Types.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/639aa02898fe4c135ea98f987bc8912aa37c1994...e31963ae797633a47fee69f2e17bdf79562959c9
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/639aa02898fe4c135ea98f987bc8912aa37c1994...e31963ae797633a47fee69f2e17bdf79562959c9
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