[Git][ghc/ghc][wip/T20749] 209 commits: EPA: Introduce HasAnnotation class
Sebastian Graf (@sgraf812)
gitlab at gitlab.haskell.org
Fri Dec 8 14:56:45 UTC 2023
Sebastian Graf pushed to branch wip/T20749 at Glasgow Haskell Compiler / GHC
Commits:
94066d58 by Alan Zimmerman at 2023-10-09T21:35:53-04:00
EPA: Introduce HasAnnotation class
The class is defined as
class HasAnnotation e where
noAnnSrcSpan :: SrcSpan -> e
This generalises noAnnSrcSpan, and allows
noLocA :: (HasAnnotation e) => a -> GenLocated e a
noLocA = L (noAnnSrcSpan noSrcSpan)
- - - - -
8792a1bc by Ben Gamari at 2023-10-09T21:36:29-04:00
Bump unix submodule to v2.8.3.0
- - - - -
e96c51cb by Andreas Klebinger at 2023-10-10T16:44:27+01:00
Add a flag -fkeep-auto-rules to optionally keep auto-generated rules around.
The motivation for the flag is given in #21917.
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3ed58cef by Matthew Pickering at 2023-10-10T19:01:22-04:00
hadrian: Add ghcToolchain to tool args list
This allows you to load ghc-toolchain and ghc-toolchain-bin into HLS.
- - - - -
476c02d4 by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Normalise triple via config.sub
We were not normalising the target triple anymore like we did with the
old make build system.
Fixes #23856
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303dd237 by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Add missing vendor normalisation
This is copied from m4/ghc_convert_vendor.m4
Towards #23868
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838026c9 by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Add loongarch64 to parseArch
Towards #23868
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1a5bc0b5 by Matthew Pickering at 2023-10-10T19:01:22-04:00
Add same LD hack to ghc-toolchain
In the ./configure script, if you pass the `LD` variable then this has
the effect of stopping use searching for a linker and hence passing
`-fuse-ld=...`.
We want to emulate this logic in ghc-toolchain, if a use explicilty
specifies `LD` variable then don't add `-fuse-ld=..` with the goal of
making ./configure and ghc-toolchain agree on which flags to use when
using the C compiler as a linker.
This is quite unsavoury as we don't bake the choice of LD into the
configuration anywhere but what's important for now is making
ghc-toolchain and ./configure agree as much as possible.
See #23857 for more discussion
- - - - -
42d50b5a by Ben Gamari at 2023-10-10T19:01:22-04:00
ghc-toolchain: Check for C99 support with -std=c99
Previously we failed to try enabling C99 support with `-std=c99`, as
`autoconf` attempts. This broke on older compilers (e.g. CentOS 7) which
don't enable C99 by default.
Fixes #23879.
- - - - -
da2961af by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Add endianess check using __BYTE_ORDER__ macro
In very old toolchains the BYTE_ORDER macro is not set but thankfully
the __BYTE_ORDER__ macro can be used instead.
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d8da73cd by Matthew Pickering at 2023-10-10T19:01:22-04:00
configure: AC_PATH_TARGET_TOOL for LD
We want to make sure that LD is set to an absolute path in order to be
consistent with the `LD=$(command -v ld)` call. The AC_PATH_TARGET_TOOL
macro uses the absolute path rather than AC_CHECK_TARGET_TOOL which
might use a relative path.
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171f93cc by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Check whether we need -std=gnu99 for CPP as well
In ./configure the C99 flag is passed to the C compiler when used as a C
preprocessor. So we also check the same thing in ghc-toolchain.
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89a0918d by Matthew Pickering at 2023-10-10T19:01:22-04:00
Check for --target linker flag separately to C compiler
There are situations where the C compiler doesn't accept `--target` but
when used as a linker it does (but doesn't do anything most likely)
In particular with old gcc toolchains, the C compiler doesn't support
--target but when used as a linker it does.
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37218329 by Matthew Pickering at 2023-10-10T19:01:22-04:00
Use Cc to compile test file in nopie check
We were attempting to use the C compiler, as a linker, to compile a file
in the nopie check, but that won't work in general as the flags we pass
to the linker might not be compatible with the ones we pass when using
the C compiler.
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9b2dfd21 by Matthew Pickering at 2023-10-10T19:01:22-04:00
configure: Error when ghc-toolchain fails to compile
This is a small QOL change as if you are working on ghc-toolchain and it
fails to compile then configure will continue and can give you outdated
results.
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1f0de49a by Matthew Pickering at 2023-10-10T19:01:22-04:00
configure: Check whether -no-pie works when the C compiler is used as a linker
`-no-pie` is a flag we pass when using the C compiler as a linker (see
pieCCLDOpts in GHC.Driver.Session) so we should test whether the C
compiler used as a linker supports the flag, rather than just the C
compiler.
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62cd2579 by Matthew Pickering at 2023-10-10T19:01:22-04:00
ghc-toolchain: Remove javascript special case for --target detection
emcc when used as a linker seems to ignore the --target flag, and for
consistency with configure which now tests for --target, we remove this
special case.
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0720fde7 by Ben Gamari at 2023-10-10T19:01:22-04:00
toolchain: Don't pass --target to emscripten toolchain
As noted in `Note [Don't pass --target to emscripten toolchain]`,
emscripten's `emcc` is rather inconsistent with respect to its treatment
of the `--target` flag. Avoid this by special-casing this toolchain
in the `configure` script and `ghc-toolchain`.
Fixes on aspect of #23744.
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6354e1da by Matthew Pickering at 2023-10-10T19:01:22-04:00
hadrian: Don't pass `--gcc-options` as a --configure-arg to cabal configure
Stop passing -gcc-options which mixed together linker flags and
non-linker flags. There's no guarantee the C compiler will accept both
of these in each mode.
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c00a4bd6 by Ben Gamari at 2023-10-10T19:01:22-04:00
configure: Probe stage0 link flags
For consistency with later stages and CC.
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1f11e7c4 by Sebastian Graf at 2023-10-10T19:01:58-04:00
Stricter Binary.get in GHC.Types.Unit (#23964)
I noticed some thunking while looking at Core.
This change has very modest, but throughout positive ghc/alloc effect:
```
hard_hole_fits(normal) ghc/alloc 283,057,664 281,620,872 -0.5%
geo. mean -0.1%
minimum -0.5%
maximum +0.0%
```
Fixes #23964.
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a4f1a181 by Bryan Richter at 2023-10-10T19:02:37-04:00
rel_eng/upload.sh cleanups
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80705335 by doyougnu at 2023-10-10T19:03:18-04:00
ci: add javascript label rule
This adds a rule which triggers the javascript job when the "javascript"
label is assigned to an MR.
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a2c0fff6 by Matthew Craven at 2023-10-10T19:03:54-04:00
Make 'wWarningFlagsDeps' include every WarningFlag
Fixes #24071.
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d055f099 by Jan Hrček at 2023-10-10T19:04:33-04:00
Fix pretty printing of overlap pragmas in TH splices (fixes #24074)
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0746b868 by Andreas Klebinger at 2023-10-10T19:05:09-04:00
Aarch64 NCG: Use encoded immediates for literals.
Try to generate
instr x2, <imm>
instead of
mov x1, lit
instr x2, x1
When possible. This get's rid if quite a few redundant
mov instructions.
I believe this causes a metric decrease for LargeRecords as
we reduce register pressure.
-------------------------
Metric Decrease:
LargeRecord
-------------------------
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739f4e6f by Andreas Klebinger at 2023-10-10T19:05:09-04:00
AArch NCG: Refactor getRegister'
Remove some special cases which can be handled just as well by the
generic case.
This increases code re-use while also fixing #23749. Since some of the
special case wasn't upholding Note [Signed arithmetic on AArch64].
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1b213d33 by Andreas Klebinger at 2023-10-10T19:05:09-04:00
Aarch ncg: Optimize immediate use for address calculations
When the offset doesn't fit into the immediate we now just reuse the
general getRegister' code path which is well optimized to compute the
offset into a register instead of a special case for CmmRegOff.
This means we generate a lot less code under certain conditions which is
why performance metrics for these improve.
-------------------------
Metric Decrease:
T4801
T5321FD
T5321Fun
-------------------------
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b7df0732 by John Ericson at 2023-10-11T16:02:11-04:00
RTS configure: Move over mem management checks
These are for heap allocation, a strictly RTS concern.
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
The RTS configure one has a new
```
AC_CHECK_SIZEOF([void *])
```
that the top-level configure version didn't have, so that
`ac_cv_sizeof_void_p` is defined. Once more code is moved over in latter
commits, that can go away.
Progress towards #17191
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41130a65 by John Ericson at 2023-10-11T16:02:11-04:00
RTS configure: Move over `__thread` check
This used by (@bgamari thinks) the `GCThread` abstraction in the RTS.
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
Progress towards #17191
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cc5ec2bd by John Ericson at 2023-10-11T16:02:11-04:00
RTS configure: Move over misc function checks
These are for general use in the RTS.
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
Progress towards #17191
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809e7c2d by John Ericson at 2023-10-11T16:02:11-04:00
RTS configure: Move over `eventfd` check
This check is for the RTS part of the event manager and has a
corresponding part in `base`.
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
Progress towards #17191
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58f3babf by John Ericson at 2023-10-11T16:02:48-04:00
Split `FP_CHECK_PTHREADS` and move part to RTS configure
`NEED_PTHREAD_LIB` is unused since
3609340743c1b25fdfd0e18b1670dac54c8d8623 (part of the make build
system), and so is no longer defined.
Progress towards #17191
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e99cf237 by Moritz Angermann at 2023-10-11T16:03:24-04:00
nativeGen: section flags for .text$foo only
Commit 3ece9856d157c85511d59f9f862ab351bbd9b38b, was supposed to fix
#22834 in !9810.
It does however add "xr" indiscriminatly to .text sections
even if splitSections is disabled. This leads to the assembler saying:
ghc_1.s:7849:0: error:
Warning: Ignoring changed section attributes for .text
|
7849 | .section .text,"xr"
| ^
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f383a242 by Sylvain Henry at 2023-10-11T16:04:04-04:00
Modularity: pass TempDir instead of DynFlags (#17957)
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34fc28b0 by John Ericson at 2023-10-12T06:48:28-04:00
Test that functions from `mingwex` are available
Ryan wrote these two minimizations, but they never got added to the test
suite.
See #23309, #23378
Co-Authored-By: Ben Gamari <bgamari.foss at gmail.com>
Co-Authored-By: Ryan Scott <ryan.gl.scott at gmail.com>
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bdb54a0e by John Ericson at 2023-10-12T06:48:28-04:00
Do not check for the `mingwex` library in `/configure`
See the recent discussion in !10360 --- Cabal will itself check for the
library for the packages that need it, and while the autoconf check
additionally does some other things like define a `HAS_LIBMINGWEX` C
Preprocessor macro, those other things are also unused and unneeded.
Progress towards #17191, which aims to get rid of `/configure` entirely.
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43e814e1 by Ben Gamari at 2023-10-12T06:49:40-04:00
base: Introduce move modules into src
The only non-move changes here are whitespace changes to pass the
`whitespace` test and a few testsuite adaptations.
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df81536f by Moritz Angermann at 2023-10-12T06:50:16-04:00
[PEi386 linker] Bounds check and null-deref guard
We should resonably be able to expect that we won't exceed the number of
sections if we assume to be dealing with legal object files. We can however
not guarantee that we get some negative values, and while we try to
special case most, we should exclude negative indexing into the sections
array.
We also need to ensure that we do not try to derefences targetSection,
if it is NULL, due to the switch statement.
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c74c4f00 by John Ericson at 2023-10-12T10:31:13-04:00
Move apple compat check to RTS configure
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c80778ea by John Ericson at 2023-10-12T10:31:13-04:00
Move clock/timer fun checks to RTS configure
Actual library check (which will set the Cabal flag) is left in the
top-level configure for now.
Progress towards #17191
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7f9f2686 by John Ericson at 2023-10-12T10:31:13-04:00
Move visibility and "musttail" annotation checks to the RTS configure
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
Progress towards #17191
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ffb3efe6 by John Ericson at 2023-10-12T10:31:13-04:00
Move leading underscore checks to RTS configure
`CabalLeadingUnderscore` is done via Hadrian already, so we can stop
`AC_SUBST`ing it completely.
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25fa4b02 by John Ericson at 2023-10-12T10:31:13-04:00
Move alloca, fork, const, and big endian checks to RTS configure
All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
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5170f42a by John Ericson at 2023-10-12T10:31:13-04:00
Move libdl check to RTS configure
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ea7a1447 by John Ericson at 2023-10-12T10:31:13-04:00
Adjust `FP_FIND_LIBFFI`
Just set vars, and `AC_SUBST` in top-level configure.
Don't define `HAVE_SYSTEM_LIBFFI` because nothing is using it. It hasn't
be in used since 3609340743c1b25fdfd0e18b1670dac54c8d8623 (part of the
make build system).
- - - - -
f399812c by John Ericson at 2023-10-12T10:31:13-04:00
Split BFD support to RTS configure
The flag is still in the top-level configure, but the other checks
(which define various macros --- important) are in the RTS configure.
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f64f44e9 by John Ericson at 2023-10-12T10:31:13-04:00
Split libm check between top level and RTS
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dafc4709 by Moritz Angermann at 2023-10-12T10:31:49-04:00
CgUtils.fixStgRegStmt respect register width
This change ensure that the reg + offset computation is always of the
same size. Before this we could end up with a 64bit register, and then
add a 32bit offset (on 32bit platforms). This not only would fail type
sanity checking, but also incorrectly truncate 64bit values into 32bit
values silently on 32bit architectures.
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9e6ef7ba by Matthew Pickering at 2023-10-12T20:35:00-04:00
hadrian: Decrease verbosity of cabal commands
In Normal, most tools do not produce output to stdout unless there are
error conditions.
Reverts 7ed65f5a1bc8e040e318ccff395f53a9bbfd8217
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08fc27af by John Ericson at 2023-10-12T20:35:36-04:00
Do not substitute `@...@` for stage-specific values in cabal files
`rts` and `ghc-prim` now no longer have a `*.cabal.in` to set Cabal flag
defaults; instead manual choices are passed to configure in the usual
way.
The old way was fundamentally broken, because it meant we were baking
these Cabal files for a specific stage. Now we only do stage-agnostic
@...@ substitution in cabal files (the GHC version), and so all
stage-specific configuration is properly confined to `_build` and the
right stage dir.
Also `include-ghc-prim` is a flag that no longer exists for `ghc-prim`
(it was removed in 835d8ddbbfb11796ea8a03d1806b7cee38ba17a6) so I got
rid of it.
Co-Authored-By: Matthew Pickering <matthewtpickering at gmail.com>
- - - - -
a0ac8785 by Sebastian Graf at 2023-10-14T19:17:12-04:00
Fix restarts in .ghcid
Using the whole of `hadrian/` restarted in a loop for me.
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fea9ecdb by Sebastian Graf at 2023-10-14T19:17:12-04:00
CorePrep: Refactor FloatingBind (#23442)
A drastically improved architecture for local floating in CorePrep
that decouples the decision of whether a float is going to be let- or case-bound
from how far it can float (out of strict contexts, out of lazy contexts, to
top-level).
There are a couple of new Notes describing the effort:
* `Note [Floating in CorePrep]` for the overview
* `Note [BindInfo and FloatInfo]` for the new classification of floats
* `Note [Floats and FloatDecision]` for how FloatInfo is used to inform
floating decisions
This is necessary ground work for proper treatment of Strict fields and
unlifted values at top-level.
Fixes #23442.
NoFib results (omitted = 0.0%):
```
--------------------------------------------------------------------------------
Program Allocs Instrs
--------------------------------------------------------------------------------
pretty 0.0% -1.6%
scc 0.0% -1.7%
--------------------------------------------------------------------------------
Min 0.0% -1.7%
Max 0.0% -0.0%
Geometric Mean -0.0% -0.0%
```
- - - - -
32523713 by Matthew Pickering at 2023-10-14T19:17:49-04:00
hadrian: Move ghcBinDeps into ghcLibDeps
This completes a5227080b57cb51ac34d4c9de1accdf6360b818b, the
`ghc-usage.txt` and `ghci-usage.txt` file are also used by the `ghc`
library so need to make sure they are present in the libdir even if we
are not going to build `ghc-bin`.
This also fixes things for cross compilers because the stage2
cross-compiler requires the ghc-usage.txt file, but we are using
the stage2 lib folder but not building stage3:exe:ghc-bin so
ghc-usage.txt was not being generated.
- - - - -
ec3c4488 by sheaf at 2023-10-14T19:18:29-04:00
Combine GREs when combining in mkImportOccEnv
In `GHC.Rename.Names.mkImportOccEnv`, we sometimes discard one import
item in favour of another, as explained in Note [Dealing with imports]
in `GHC.Rename.Names`. However, this can cause us to lose track of
important parent information.
Consider for example #24084:
module M1 where { class C a where { type T a } }
module M2 ( module M1 ) where { import M1 }
module M3 where { import M2 ( C, T ); instance C () where T () = () }
When processing the import list of `M3`, we start off (for reasons that
are not relevant right now) with two `Avail`s attached to `T`, namely
`C(C, T)` and `T(T)`. We combine them in the `combine` function of
`mkImportOccEnv`; as described in Note [Dealing with imports] we discard
`C(C, T)` in favour of `T(T)`. However, in doing so, we **must not**
discard the information want that `C` is the parent of `T`. Indeed,
losing track of this information can cause errors when importing,
as we could get an error of the form
‘T’ is not a (visible) associated type of class ‘C’
We fix this by combining the two GREs for `T` using `plusGRE`.
Fixes #24084
- - - - -
257c2807 by Ilias Tsitsimpis at 2023-10-14T19:19:07-04:00
hadrian: Pass -DNOSMP to C compiler when needed
Hadrian passes the -DNOSMP flag to GHC when the target doesn't support
SMP, but doesn't pass it to CC as well, leading to the following
compilation error on mips64el:
| Run Cc (FindCDependencies CDep) Stage1: rts/sm/NonMovingScav.c => _build/stage1/rts/build/c/sm/NonMovingScav.o.d
Command line: /usr/bin/mips64el-linux-gnuabi64-gcc -E -MM -MG -MF _build/stage1/rts/build/c/hooks/FlagDefaults.thr_debug_p_o.d -MT _build/stage1/rts/build/c/hooks/FlagDefaults.o -Irts/include -I_build/stage1/rts/build -I_build/stage1/rts/build/include -Irts/include -x c rts/hooks/FlagDefaults.c -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Winline -Wpointer-arith -Wmissing-noreturn -Wnested-externs -Wredundant-decls -Wundef -fno-strict-aliasing -DTHREADED_RTS -DDEBUG -fomit-frame-pointer -O2 -g -Irts -I_build/stage1/rts/build -DDEBUG -fno-omit-frame-pointer -g3 -O0
===> Command failed with error code: 1
In file included from rts/include/Stg.h:348,
from rts/include/Rts.h:38,
from rts/hooks/FlagDefaults.c:8:
rts/include/stg/SMP.h:416:2: error: #error memory barriers unimplemented on this architecture
416 | #error memory barriers unimplemented on this architecture
| ^~~~~
rts/include/stg/SMP.h:440:2: error: #error memory barriers unimplemented on this architecture
440 | #error memory barriers unimplemented on this architecture
| ^~~~~
rts/include/stg/SMP.h:464:2: error: #error memory barriers unimplemented on this architecture
464 | #error memory barriers unimplemented on this architecture
| ^~~~~
The old make system correctly passed this flag to both GHC and CC [1].
Fix this error by passing -DNOSMP to CC as well.
[1] https://gitlab.haskell.org/ghc/ghc/-/blob/00920f176b0235d5bb52a8e054d89a664f8938fe/rts/ghc.mk#L407
Closes #24082
- - - - -
13d3c613 by John Ericson at 2023-10-14T19:19:42-04:00
Users Guide: Drop dead code for Haddock refs to `parallel`
I noticed while working on !11451 that `@LIBRARY_parallel_UNIT_ID@` was
not substituted. It is dead code -- there is no `parallel-ref` usages
and it doesn't look like there ever was (going back to
3e5d0f188d6c8633e55e9ba6c8941c07e459fa4b), so let's delete it.
- - - - -
fe067577 by Sylvain Henry at 2023-10-18T19:40:25-04:00
Avoid out-of-bound array access in bigNatIsPowerOf2 (fix #24066)
bigNatIndex# in the `where` clause wasn't guarded by "bigNatIsZero a".
- - - - -
cc1625b1 by Sylvain Henry at 2023-10-18T19:40:25-04:00
Bignum: fix right shift of negative BigNat with native backend
- - - - -
cbe4400d by Sylvain Henry at 2023-10-18T19:40:25-04:00
Rts: expose rtsOutOfBoundsAccess symbol
- - - - -
72c7380c by Sylvain Henry at 2023-10-18T19:40:25-04:00
Hadrian: enable `-fcheck-prim-bounds` in validate flavour
This allows T24066 to fail when the bug is present.
Otherwise the out-of-bound access isn't detected as it happens in
ghc-bignum which wasn't compiled with the bounds check.
- - - - -
f9436990 by John Ericson at 2023-10-18T19:41:01-04:00
Make Hadrian solely responsible for substituting `docs/users_guide/ghc_config.py.in`
Fixes #24091
Progress on #23966
Issue #24091 reports that `@ProjectVersion@` is no longer being
substituted in the GHC user's guide. I assume this is a recent issue,
but I am not sure how it's worked since
c1a3ecde720b3bddc2c8616daaa06ee324e602ab; it looks like both Hadrian and
configure are trying to substitute the same `.in` file!
Now only Hadrian does. That is better anyways; already something that
issue #23966 requested.
It seems like we were missing some dependencies in Hadrian. (I really,
really hate that this is possible!) Hopefully it is fixed now.
- - - - -
b12df0bb by John Ericson at 2023-10-18T19:41:37-04:00
`ghcversion.h`: No need to cope with undefined `ProjectPatchLevel*`
Since 4e6c80197f1cc46dfdef0300de46847c7cfbdcb0, these are guaranteed to
be defined. (Guaranteed including a test in the testsuite.)
- - - - -
0295375a by John Ericson at 2023-10-18T19:41:37-04:00
Generate `ghcversion.h` from a `.in` file
Now that there are no conditional sections (see the previous commit), we
can just a do simple substitution rather than pasting it together line
by line.
Progress on #23966
- - - - -
740a1b85 by Krzysztof Gogolewski at 2023-10-19T11:37:20-04:00
Add a regression test for #24064
- - - - -
921fbf2f by Hécate Moonlight at 2023-10-19T11:37:59-04:00
CLC Proposal #182: Export List from Data.List
Proposal link: https://github.com/haskell/core-libraries-committee/issues/182
- - - - -
4f02d3c1 by Sylvain Henry at 2023-10-20T04:01:32-04:00
rts: fix small argument passing on big-endian arch (fix #23387)
- - - - -
b86243b4 by Sylvain Henry at 2023-10-20T04:02:13-04:00
Interpreter: fix literal alignment on big-endian architectures (fix #19261)
Literals weren't correctly aligned on big-endian, despite what the
comment said.
- - - - -
a4b2ec47 by Sylvain Henry at 2023-10-20T04:02:54-04:00
Testsuite: recomp011 and recomp015 are fixed on powerpc
These tests have been fixed but not tested and re-enabled on big-endian
powerpc (see comments in #11260 and #11323)
- - - - -
fded7dd4 by Sebastian Graf at 2023-10-20T04:03:30-04:00
CorePrep: Allow floating dictionary applications in -O0 into a Rec (#24102)
- - - - -
02efc181 by John Ericson at 2023-10-22T02:48:55-04:00
Move function checks to RTS configure
Some of these functions are used in `base` too, but we can copy the
checks over to its configure if that's an issue.
- - - - -
5f4bccab by John Ericson at 2023-10-22T02:48:55-04:00
Move over a number of C-style checks to RTS configure
- - - - -
5cf04f58 by John Ericson at 2023-10-22T02:48:55-04:00
Move/Copy more `AC_DEFINE` to RTS config
Only exception is the LLVM version macros, which are used for GHC
itself.
- - - - -
b8ce5dfe by John Ericson at 2023-10-22T02:48:55-04:00
Define `TABLES_NEXT_TO_CODE` in the RTS configure
We create a new cabal flag to facilitate this.
- - - - -
4a40271e by John Ericson at 2023-10-22T02:48:55-04:00
Configure scripts: `checkOS`: Make a bit more robust
`mingw64` and `mingw32` are now both accepted for `OSMinGW32`. This
allows us to cope with configs/triples that we haven't normalized extra
being what GNU `config.sub` does.
- - - - -
16bec0a0 by John Ericson at 2023-10-22T02:48:55-04:00
Generate `ghcplatform.h` from RTS configure
We create a new cabal flag to facilitate this.
- - - - -
7dfcab2f by John Ericson at 2023-10-22T02:48:55-04:00
Get rid of all mention of `mk/config.h`
The RTS configure script is now solely responsible for managing its
headers; the top level configure script does not help.
- - - - -
c1e3719c by Cheng Shao at 2023-10-22T02:49:33-04:00
rts: drop stale mentions of MIN_UPD_SIZE
We used to have MIN_UPD_SIZE macro that describes the minimum reserved
size for thunks, so that the thunk can be overwritten in place as
indirections or blackholes. However, this macro has not been actually
defined or used anywhere since a long time ago; StgThunkHeader already
reserves a padding word for this purpose. Hence this patch which drops
stale mentions of MIN_UPD_SIZE.
- - - - -
d24b0d85 by Andrew Lelechenko at 2023-10-22T02:50:11-04:00
base changelog: move non-backported entries from 4.19 section to 4.20
Neither !10933 (check https://hackage.haskell.org/package/base-4.19.0.0/docs/src/Text.Read.Lex.html#numberToRangedRational)
nor !10189 (check https://hackage.haskell.org/package/base-4.19.0.0/docs/src/Data.List.NonEmpty.html#unzip)
were backported to `base-4.19.0.0`. Moving them to `base-4.20.0.0` section.
Also minor stylistic changes to other entries, bringing them to a uniform form.
- - - - -
de78b32a by Alan Zimmerman at 2023-10-23T09:09:41-04:00
EPA Some tweaks to annotations
- Fix span for GRHS
- Move TrailingAnns from last match to FunBind
- Fix GADT 'where' clause span
- Capture full range for a CaseAlt Match
- - - - -
d5a8780d by Simon Hengel at 2023-10-23T09:10:23-04:00
Update primitives.rst
- - - - -
4d075924 by Josh Meredith at 2023-10-24T23:04:12+11:00
JS/userguide: add explanation of writing jsbits
- - - - -
07ab5cc1 by Cheng Shao at 2023-10-24T15:40:32-04:00
testsuite: increase timeout of ghc-api tests for wasm32
ghc-api tests for wasm32 are more likely to timeout due to the large
wasm module sizes, especially when testing with wasm native tail
calls, given wasmtime's handling of tail call opcodes are suboptimal
at the moment. It makes sense to increase timeout specifically for
these tests on wasm32. This doesn't affect other targets, and for
wasm32 we don't increase timeout for all tests, so not to risk letting
major performance regressions slip through the testsuite.
- - - - -
0d6acca5 by Greg Steuck at 2023-10-26T08:44:23-04:00
Explicitly require RLIMIT_AS before use in OSMem.c
This is done elsewhere in the source tree. It also suddenly is
required on OpenBSD.
- - - - -
9408b086 by Sylvain Henry at 2023-10-26T08:45:03-04:00
Modularity: modularize external linker
Decouple runLink from DynFlags to allow calling runLink more easily.
This is preliminary work for calling Emscripten's linker (emcc) from
our JavaScript linker.
- - - - -
e0f35030 by doyougnu at 2023-10-27T08:41:12-04:00
js: add JStg IR, remove unsaturated constructor
- Major step towards #22736 and adding the optimizer in #22261
- - - - -
35587eba by Simon Peyton Jones at 2023-10-27T08:41:48-04:00
Fix a bug in tail calls with ticks
See #24078 for the diagnosis. The change affects only
the Tick case of occurrence analysis.
It's a bit hard to test, so no regression test (yet anyway).
- - - - -
9bc5cb92 by Matthew Craven at 2023-10-28T07:06:17-04:00
Teach tag-inference about SeqOp/seq#
Fixes the STG/tag-inference analogue of #15226.
Co-Authored-By: Simon Peyton Jones <simon.peytonjones at gmail.com>
- - - - -
34f06334 by Moritz Angermann at 2023-10-28T07:06:53-04:00
[PEi386] Mask SYM_TYPE_DUP_DISCARD in makeSymbolExtra
48e391952c17ff7eab10b0b1456e3f2a2af28a9b
introduced `SYM_TYPE_DUP_DISCARD` to the bitfield.
The linker however, failed to mask the `SYM_TYPE_DUP_DISCARD` value.
Thus `== SYM_TYPE_CODE` comparisons easily failed. This lead to us
relocating DATA lookups (GOT) into E8 (call) and E9 (jump) instructions.
- - - - -
5b51b2a2 by Mario Blažević at 2023-10-28T07:07:33-04:00
Fix and test for issue #24111, TH.Ppr output of pattern synonyms
- - - - -
723bc352 by Alan Zimmerman at 2023-10-30T20:36:41-04:00
EPA: print doc comments as normal comments
And ignore the ones allocated in haddock processing.
It does not guarantee that every original haddock-like comment appears
in the output, as it discards ones that have no legal attachment point.
closes #23459
- - - - -
21b76843 by Simon Peyton Jones at 2023-10-30T20:37:17-04:00
Fix non-termination bug in equality solver
constraint left-to-right then right to left, forever.
Easily fixed.
- - - - -
270867ac by Sebastian Graf at 2023-10-30T20:37:52-04:00
ghc-toolchain: build with `-package-env=-` (#24131)
Otherwise globally installed libraries (via `cabal install --lib`)
break the build.
Fixes #24131.
- - - - -
7a90020f by Krzysztof Gogolewski at 2023-10-31T20:03:37-04:00
docs: fix ScopedTypeVariables example (#24101)
The previous example didn't compile.
Furthermore, it wasn't demonstrating the point properly.
I have changed it to an example which shows that 'a' in the signature
must be the same 'a' as in the instance head.
- - - - -
49f69f50 by Krzysztof Gogolewski at 2023-10-31T20:04:13-04:00
Fix pretty-printing of type family dependencies
"where" should be after the injectivity annotation.
- - - - -
73c191c0 by Ben Gamari at 2023-10-31T20:04:49-04:00
gitlab-ci: Bump LLVM bootstrap jobs to Debian 12
As the Debian 10 images have too old an LLVM.
Addresses #24056.
- - - - -
5b0392e0 by Matthew Pickering at 2023-10-31T20:04:49-04:00
ci: Run aarch64 llvm backend job with "LLVM backend" label
This brings it into line with the x86 LLVM backend job.
- - - - -
9f9c9227 by Ryan Scott at 2023-11-01T09:19:12-04:00
More robust checking for DataKinds
As observed in #22141, GHC was not doing its due diligence in catching code
that should require `DataKinds` in order to use. Most notably, it was allowing
the use of arbitrary data types in kind contexts without `DataKinds`, e.g.,
```hs
data Vector :: Nat -> Type -> Type where
```
This patch revamps how GHC tracks `DataKinds`. The full specification is
written out in the `DataKinds` section of the GHC User's Guide, and the
implementation thereof is described in `Note [Checking for DataKinds]` in
`GHC.Tc.Validity`. In brief:
* We catch _type_-level `DataKinds` violations in the renamer. See
`checkDataKinds` in `GHC.Rename.HsType` and `check_data_kinds` in
`GHC.Rename.Pat`.
* We catch _kind_-level `DataKinds` violations in the typechecker, as this
allows us to catch things that appear beneath type synonyms. (We do *not*
want to do this in type-level contexts, as it is perfectly fine for a type
synonym to mention something that requires DataKinds while still using the
type synonym in a module that doesn't enable DataKinds.) See `checkValidType`
in `GHC.Tc.Validity`.
* There is now a single `TcRnDataKindsError` that classifies all manner of
`DataKinds` violations, both in the renamer and the typechecker. The
`NoDataKindsDC` error has been removed, as it has been subsumed by
`TcRnDataKindsError`.
* I have added `CONSTRAINT` is `isKindTyCon`, which is what checks for illicit
uses of data types at the kind level without `DataKinds`. Previously,
`isKindTyCon` checked for `Constraint` but not `CONSTRAINT`. This is
inconsistent, given that both `Type` and `TYPE` were checked by `isKindTyCon`.
Moreover, it thwarted the implementation of the `DataKinds` check in
`checkValidType`, since we would expand `Constraint` (which was OK without
`DataKinds`) to `CONSTRAINT` (which was _not_ OK without `DataKinds`) and
reject it. Now both are allowed.
* I have added a flurry of additional test cases that test various corners of
`DataKinds` checking.
Fixes #22141.
- - - - -
575d7690 by Sylvain Henry at 2023-11-01T09:19:53-04:00
JS: fix FFI "wrapper" and "dynamic"
Fix codegen and helper functions for "wrapper" and "dynamic" foreign
imports.
Fix tests:
- ffi006
- ffi011
- T2469
- T4038
Related to #22363
- - - - -
81fb8885 by Alan Zimmerman at 2023-11-01T22:23:56-04:00
EPA: Use full range for Anchor
This change requires a series of related changes, which must all land
at the same time, otherwise all the EPA tests break.
* Use the current Anchor end as prior end
Use the original anchor location end as the source of truth for
calculating print deltas.
This allows original spacing to apply in most cases, only changed
AST items need initial delta positions.
* Add DArrow to TrailingAnn
* EPA Introduce HasTrailing in ExactPrint
Use [TrailingAnn] in enterAnn and remove it from
ExactPrint (LocatedN RdrName)
* In HsDo, put TrailingAnns at top of LastStmt
* EPA: do not convert comments to deltas when balancing.
* EPA: deal with fallout from getMonoBind
* EPA fix captureLineSpacing
* EPA print any comments in the span before exiting it
* EPA: Add comments to AnchorOperation
* EPA: remove AnnEofComment, it is no longer used
Updates Haddock submodule
- - - - -
03e82511 by Rodrigo Mesquita at 2023-11-01T22:24:32-04:00
Fix in docs regarding SSymbol, SNat, SChar (#24119)
- - - - -
362cc693 by Matthew Pickering at 2023-11-01T22:25:08-04:00
hadrian: Update bootstrap plans (9.4.6, 9.4.7, 9.6.2, 9.6.3, 9.8.1)
Updating the bootstrap plans with more recent GHC versions.
- - - - -
00b9b8d3 by Matthew Pickering at 2023-11-01T22:25:08-04:00
ci: Add 9.8.1 bootstrap testing job
- - - - -
ef3d20f8 by Matthew Pickering at 2023-11-01T22:25:08-04:00
Compatibility with 9.8.1 as boot compiler
This fixes several compatability issues when using 9.8.1 as the boot
compiler.
* An incorrect version guard on the stack decoding logic in ghc-heap
* Some ghc-prim bounds need relaxing
* ghc is no longer wired in, so we have to remove the -this-unit-id ghc
call.
Fixes #24077
- - - - -
6755d833 by Jaro Reinders at 2023-11-03T10:54:42+01:00
Add NCG support for common 64bit operations to the x86 backend.
These used to be implemented via C calls which was obviously quite bad
for performance for operations like simple addition.
Co-authored-by: Andreas Klebinger
- - - - -
0dfb1fa7 by Vladislav Zavialov at 2023-11-03T14:08:41-04:00
T2T in Expressions (#23738)
This patch implements the T2T (term-to-type) transformation in
expressions. Given a function with a required type argument
vfun :: forall a -> ...
the user can now call it as
vfun (Maybe Int)
instead of
vfun (type (Maybe Int))
The Maybe Int argument is parsed and renamed as a term (HsExpr), but then
undergoes a conversion to a type (HsType).
See the new function expr_to_type in compiler/GHC/Tc/Gen/App.hs
and Note [RequiredTypeArguments and the T2T mapping]
Left as future work: checking for puns.
- - - - -
cc1c7c54 by Duncan Coutts at 2023-11-05T00:23:44-04:00
Add a test for I/O managers
It tries to cover the cases of multiple threads waiting on the same
fd for reading and multiple threads waiting for writing, including
wait cancellation by async exceptions.
It should work for any I/O manager, in-RTS or in-Haskell.
Unfortunately it will not currently work for Windows because it relies
on anonymous unix sockets. It could in principle be ported to use
Windows named pipes.
- - - - -
2e448f98 by Cheng Shao at 2023-11-05T00:23:44-04:00
Skip the IOManager test on wasm32 arch.
The test relies on the sockets API which are not (yet) available.
- - - - -
fe50eb35 by Cheng Shao at 2023-11-05T00:24:20-04:00
compiler: fix eager blackhole symbol in wasm32 NCG
- - - - -
af771148 by Cheng Shao at 2023-11-05T00:24:20-04:00
testsuite: fix optasm tests for wasm32
- - - - -
1b90735c by Matthew Pickering at 2023-11-05T00:24:20-04:00
testsuite: Add wasm32 to testsuite arches with NCG
The compiler --info reports that wasm32 compilers have a NCG, so we
should agree with that here.
- - - - -
db9a6496 by Alan Zimmerman at 2023-11-05T00:24:55-04:00
EPA: make locA a function, not a field name
And use it to generalise reLoc
The following for the windows pipeline one. 5.5%
Metric Increase:
T5205
- - - - -
833e250c by Simon Peyton Jones at 2023-11-05T00:25:31-04:00
Update the unification count in wrapUnifierX
Omitting this caused type inference to fail in #24146.
This was an accidental omision in my refactoring of the
equality solver.
- - - - -
e451139f by Andreas Klebinger at 2023-11-05T00:26:07-04:00
Remove an accidental git conflict marker from a comment.
- - - - -
30baac7a by Tobias Haslop at 2023-11-06T10:50:32+00:00
Add laws relating between Foldable/Traversable with their Bi- superclasses
See https://github.com/haskell/core-libraries-committee/issues/205 for
discussion.
This commit also documents that the tuple instances only satisfy the
laws up to lazyness, similar to the documentation added in !9512.
- - - - -
df626f00 by Tobias Haslop at 2023-11-07T02:20:37-05:00
Elaborate on the quantified superclass of Bifunctor
This was requested in the comment
https://github.com/haskell/core-libraries-committee/issues/93#issuecomment-1597271700
for when Traversable becomes a superclass of Bitraversable, but similarly
applies to Functor/Bifunctor, which already are in a superclass relationship.
- - - - -
8217acb8 by Alan Zimmerman at 2023-11-07T02:21:12-05:00
EPA: get rid of l2l and friends
Replace them with
l2l to convert the location
la2la to convert a GenLocated thing
Updates haddock submodule
- - - - -
dd88a260 by Luite Stegeman at 2023-11-07T02:21:53-05:00
JS: remove broken newIdents from JStg Monad
GHC.JS.JStg.Monad.newIdents was broken, resulting in duplicate
identifiers being generated in h$c1, h$c2, ... .
This change removes the broken newIdents.
- - - - -
455524a2 by Matthew Craven at 2023-11-09T08:41:59-05:00
Create specially-solved DataToTag class
Closes #20532. This implements CLC proposal 104:
https://github.com/haskell/core-libraries-committee/issues/104
The design is explained in Note [DataToTag overview]
in GHC.Tc.Instance.Class. This replaces the existing
`dataToTag#` primop.
These metric changes are not "real"; they represent Unique-related
flukes triggering on a different set of jobs than they did previously.
See also #19414.
Metric Decrease:
T13386
T8095
Metric Increase:
T13386
T8095
Co-authored-by: Simon Peyton Jones <simon.peytonjones at gmail.com>
- - - - -
a05f4554 by Alan Zimmerman at 2023-11-09T08:42:35-05:00
EPA: get rid of glRR and friends in GHC/Parser.y
With the HasLoc and HasAnnotation classes, we can replace a
number of type-specific helper functions in the parser with
polymorphic ones instead
Metric Decrease:
MultiLayerModulesTH_Make
- - - - -
18498538 by Cheng Shao at 2023-11-09T16:58:12+00:00
ci: bump ci-images for wasi-sdk upgrade
- - - - -
52c0fc69 by PHO at 2023-11-09T19:16:22-05:00
Don't assume the current locale is *.UTF-8, set the encoding explicitly
primops.txt contains Unicode characters:
> LC_ALL=C ./genprimopcode --data-decl < ./primops.txt
> genprimopcode: <stdin>: hGetContents: invalid argument (cannot decode byte sequence starting from 226)
Hadrian must also avoid using readFile' to read primops.txt because it
tries to decode the file with a locale-specific encoding.
- - - - -
7233b3b1 by PHO at 2023-11-09T19:17:01-05:00
Use '[' instead of '[[' because the latter is a Bash-ism
It doesn't work on platforms where /bin/sh is something other than Bash.
- - - - -
6dbab180 by Simon Peyton Jones at 2023-11-09T19:17:36-05:00
Add an extra check in kcCheckDeclHeader_sig
Fix #24083 by checking for a implicitly-scoped type variable that is not
actually bound. See Note [Disconnected type variables] in GHC.Tc.Gen.HsType
For some reason, on aarch64-darwin we saw a 2.8% decrease in compiler
allocations for MultiLayerModulesTH_Make; but 0.0% on other architectures.
Metric Decrease:
MultiLayerModulesTH_Make
- - - - -
22551364 by Sven Tennie at 2023-11-11T06:35:22-05:00
AArch64: Delete unused LDATA pseudo-instruction
Though there were consuming functions for LDATA, there were no
producers. Thus, the removed code was "dead".
- - - - -
2a0ec8eb by Alan Zimmerman at 2023-11-11T06:35:59-05:00
EPA: harmonise acsa and acsA in GHC/Parser.y
With the HasLoc class, we can remove the acsa helper function,
using acsA instead.
- - - - -
7ae517a0 by Teo Camarasu at 2023-11-12T08:04:12-05:00
nofib: bump submodule
This includes changes that:
- fix building a benchmark with HEAD
- remove a Makefile-ism that causes errors in bash scripts
Resolves #24178
- - - - -
3f0036ec by Alan Zimmerman at 2023-11-12T08:04:47-05:00
EPA: Replace Anchor with EpaLocation
An Anchor has a location and an operation, which is either that it is
unchanged or that it has moved with a DeltaPos
data Anchor = Anchor { anchor :: RealSrcSpan
, anchor_op :: AnchorOperation }
An EpaLocation also has either a location or a DeltaPos
data EpaLocation = EpaSpan !RealSrcSpan !(Strict.Maybe BufSpan)
| EpaDelta !DeltaPos ![LEpaComment]
Now that we do not care about always having a location in the anchor,
we remove Anchor and replace it with EpaLocation
We do this with a type alias initially, to ease the transition.
The alias will be removed in time.
We also have helpers to reconstruct the AnchorOperation from an
EpaLocation. This is also temporary.
Updates Haddock submodule
- - - - -
a7492048 by Alan Zimmerman at 2023-11-12T13:43:07+00:00
EPA: get rid of AnchorOperation
Now that the Anchor type is an alias for EpaLocation, remove
AnchorOperation.
Updates haddock submodule
- - - - -
0745c34d by Andrew Lelechenko at 2023-11-13T16:25:07-05:00
Add since annotation for showHFloat
- - - - -
e98051a5 by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
Suppress duplicate librares linker warning of new macOS linker
Fixes #24167
XCode 15 introduced a new linker which warns on duplicate libraries being
linked. To disable this warning, we pass -Wl,-no_warn_duplicate_libraries as
suggested by Brad King in CMake issue #25297.
This flag isn't necessarily available to other linkers on darwin, so we must
only configure it into the CC linker arguments if valid.
- - - - -
c411c431 by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
testsuite: Encoding test witnesses recent iconv bug is fragile
A regression in the new iconv() distributed with XCode 15 and MacOS
Sonoma causes the test 'encoding004' to fail in the CP936 roundrip.
We mark this test as fragile until this is fixed upstream (rather than
broken, since previous versions of iconv pass the test)
See #24161
- - - - -
ce7fe5a9 by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
testsuite: Update to LC_ALL=C no longer being ignored in darwin
MacOS seems to have fixed an issue where it used to ignore the variable
`LC_ALL` in program invocations and default to using Unicode.
Since the behaviour seems to be fixed to account for the locale
variable, we mark tests that were previously broken in spite of it as
fragile (since they now pass in recent macOS distributions)
See #24161
- - - - -
e6c803f7 by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
darwin: Fix single_module is obsolete warning
In XCode 15's linker, -single_module is the default and otherwise
passing it as a flag results in a warning being raised:
ld: warning: -single_module is obsolete
This patch fixes this warning by, at configure time, determining whether
the linker supports -single_module (which is likely false for all
non-darwin linkers, and true for darwin linkers in previous versions of
macOS), and using that information at runtime to decide to pass or not
the flag in the invocation.
Fixes #24168
- - - - -
929ba2f9 by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
testsuite: Skip MultiLayerModulesTH_Make on darwin
The recent toolchain upgrade on darwin machines resulted in the
MultiLayerModulesTH_Make test metrics varying too much from the
baseline, ultimately blocking the CI pipelines.
This commit skips the test on darwin to temporarily avoid failures due
to the environment change in the runners. However, the metrics
divergence is being investigated still (tracked in #24177)
- - - - -
af261ccd by Rodrigo Mesquita at 2023-11-15T13:18:58-05:00
configure: check target (not build) understands -no_compact_unwind
Previously, we were branching on whether the build system was darwin to
shortcut this check, but we really want to branch on whether the target
system (which is what we are configuring ld_prog for) is darwin.
- - - - -
2125c176 by Luite Stegeman at 2023-11-15T13:19:38-05:00
JS: Fix missing variable declarations
The JStg IR update was missing some local variable declarations
that were present earlier, causing global variables to be used
implicitly (or an error in JavaScript strict mode).
This adds the local variable declarations again.
- - - - -
99ced73b by Krzysztof Gogolewski at 2023-11-15T13:20:14-05:00
Remove loopy superclass solve mechanism
Programs with a -Wloopy-superclass-solve warning will now fail with an error.
Fixes #23017
- - - - -
2aff2361 by Zubin Duggal at 2023-11-15T13:20:50-05:00
users-guide: Fix links to libraries from the users-guide.
The unit-ids generated in c1a3ecde720b3bddc2c8616daaa06ee324e602ab include the
package name, so we don't need to explicitly add it to the links.
Fixes #24151
- - - - -
27981fac by Alan Zimmerman at 2023-11-15T13:21:25-05:00
EPA: splitLHsForAllTyInvis does not return ann
We did not use the annotations returned from splitLHsForAllTyInvis, so
do not return them.
- - - - -
a6467834 by Krzysztof Gogolewski at 2023-11-15T22:22:59-05:00
Document defaulting of RuntimeReps
Fixes #24099
- - - - -
2776920e by Simon Peyton Jones at 2023-11-15T22:23:35-05:00
Second fix to #24083
My earlier fix turns out to be too aggressive for data/type families
See wrinkle (DTV1) in Note [Disconnected type variables]
- - - - -
cee81370 by Sylvain Henry at 2023-11-16T09:57:46-05:00
Fix unusable units and module reexport interaction (#21097)
This commit fixes an issue with ModUnusable introduced in df0f148feae.
In mkUnusableModuleNameProvidersMap we traverse the list of unusable
units and generate ModUnusable origin for all the modules they contain:
exposed modules, hidden modules, and also re-exported modules. To do
this we have a two-level map:
ModuleName -> Unit:ModuleName (aka Module) -> ModuleOrigin
So for each module name "M" in broken unit "u" we have:
"M" -> u:M -> ModUnusable reason
However in the case of module reexports we were using the *target*
module as a key. E.g. if "u:M" is a reexport for "X" from unit "o":
"M" -> o:X -> ModUnusable reason
Case 1: suppose a reexport without module renaming (u:M -> o:M) from
unusable unit u:
"M" -> o:M -> ModUnusable reason
Here it's claiming that the import of M is unusable because a reexport
from u is unusable. But if unit o isn't unusable we could also have in
the map:
"M" -> o:M -> ModOrigin ...
Issue: the Semigroup instance of ModuleOrigin doesn't handle the case
(ModUnusable <> ModOrigin)
Case 2: similarly we could have 2 unusable units reexporting the same module
without renaming, say (u:M -> o:M) and (v:M -> o:M) with u and v
unusable. It gives:
"M" -> o:M -> ModUnusable ... (for u)
"M" -> o:M -> ModUnusable ... (for v)
Issue: the Semigroup instance of ModuleOrigin doesn't handle the case
(ModUnusable <> ModUnusable).
This led to #21097, #16996, #11050.
To fix this, in this commit we make ModUnusable track whether the module
used as key is a reexport or not (for better error messages) and we use
the re-export module as key. E.g. if "u:M" is a reexport for "o:X" and u
is unusable, we now record:
"M" -> u:M -> ModUnusable reason reexported=True
So now, we have two cases for a reexport u:M -> o:X:
- u unusable: "M" -> u:M -> ModUnusable ... reexported=True
- u usable: "M" -> o:X -> ModOrigin ... reexportedFrom=u:M
The second case is indexed with o:X because in this case the Semigroup
instance of ModOrigin is used to combine valid expositions of a module
(directly or via reexports).
Note that module lookup functions select usable modules first (those who
have a ModOrigin value), so it doesn't matter if we add new ModUnusable
entries in the map like this:
"M" -> {
u:M -> ModUnusable ... reexported=True
o:M -> ModOrigin ...
}
The ModOrigin one will be used. Only if there is no ModOrigin or
ModHidden entry will the ModUnusable error be printed. See T21097 for an
example printing several reasons why an import is unusable.
- - - - -
3e606230 by Krzysztof Gogolewski at 2023-11-16T09:58:22-05:00
Fix IPE test
A helper function was defined in a different module than used.
To reproduce: ./hadrian/build test --test-root-dirs=testsuite/tests/rts/ipe
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49f5264b by Andreas Klebinger at 2023-11-16T20:52:11-05:00
Properly compute unpacked sizes for -funpack-small-strict-fields.
Use rep size rather than rep count to compute the size.
Fixes #22309
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b4f84e4b by James Henri Haydon at 2023-11-16T20:52:53-05:00
Explicit methods for Alternative Compose
Explicitly define some and many in Alternative instance for
Data.Functor.Compose
Implementation of https://github.com/haskell/core-libraries-committee/issues/181
- - - - -
9bc0dd1f by Ignat Insarov at 2023-11-16T20:53:34-05:00
Add permutations for non-empty lists.
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/68#issuecomment-1221409837
- - - - -
5643ecf9 by Andrew Lelechenko at 2023-11-16T20:53:34-05:00
Update changelog and since annotations for Data.List.NonEmpty.permutations
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/68#issuecomment-1221409837
- - - - -
94ff2134 by Oleg Alexander at 2023-11-16T20:54:15-05:00
Update doc string for traceShow
Updated doc string for traceShow.
- - - - -
faff671a by Luite Stegeman at 2023-11-17T14:12:51+01:00
JS: clean up some foreign imports
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856e0a4e by Sven Tennie at 2023-11-18T06:54:11-05:00
AArch64: Remove unused instructions
As these aren't ever emitted, we don't even know if they work or will
ever be used. If one of them is needed in future, we may easily re-add
it.
Deleted instructions are:
- CMN
- ANDS
- BIC
- BICS
- EON
- ORN
- ROR
- TST
- STP
- LDP
- DMBSY
- - - - -
615441ef by Alan Zimmerman at 2023-11-18T06:54:46-05:00
EPA: Replace Monoid with NoAnn
Remove the final Monoid instances in the exact print infrastructure.
For Windows CI
Metric Decrease:
T5205
- - - - -
5a6c49d4 by David Feuer at 2023-11-20T18:53:18-05:00
Speed up stimes in instance Semigroup Endo
As discussed at
https://github.com/haskell/core-libraries-committee/issues/4
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cf9da4b3 by Andrew Lelechenko at 2023-11-20T18:53:18-05:00
base: reflect latest changes in the changelog
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48bf364e by Alan Zimmerman at 2023-11-20T18:53:54-05:00
EPA: Use SrcSpan in EpaSpan
This is more natural, since we already need to deal with invalid
RealSrcSpans, and that is exactly what SrcSpan.UnhelpfulSpan is for.
Updates haddock submodule.
- - - - -
97ec37cc by Sebastian Graf at 2023-11-20T18:54:31-05:00
Add regression test for #6070
Fixes #6070.
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e9d5ae41 by Owen Shepherd at 2023-11-21T18:32:23-05:00
chore: Correct typo in the gitlab MR template
[skip ci]
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f158a8d0 by Rodrigo Mesquita at 2023-11-21T18:32:59-05:00
Improve error message when reading invalid `.target` files
A `.target` file generated by ghc-toolchain or by configure can become
invalid if the target representation (`Toolchain.Target`) is changed
while the files are not re-generated by calling `./configure` or
`ghc-toolchain` again. There is also the issue of hadrian caching the
dependencies on `.target` files, which makes parsing fail when reading
reading the cached value if the representation has been updated.
This patch provides a better error message in both situations, moving
away from a terrible `Prelude.read: no parse` error that you would get
otherwise.
Fixes #24199
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955520c6 by Ben Gamari at 2023-11-21T18:33:34-05:00
users guide: Note that QuantifiedConstraints implies ExplicitForAll
Fixes #24025.
- - - - -
17ec3e97 by Owen Shepherd at 2023-11-22T09:37:28+01:00
fix: Change type signatures in NonEmpty export comments to reflect reality
This fixes several typos in the comments of
Data.List.NonEmpty export list items.
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2fd78f9f by Samuel Thibault at 2023-11-22T11:49:13-05:00
Fix the platform string for GNU/Hurd
As commited in Cargo
https://github.com/haskell/cabal/pull/9434
there is confusion between "gnu" and "hurd". This got fixed in Cargo, we
need the converse in Hadrian.
Fixes #24180
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a79960fe by Alan Zimmerman at 2023-11-22T11:49:48-05:00
EPA: Tuple Present no longer has annotation
The Present constructor for a Tuple argument will never have an exact
print annotation. So make this impossible.
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121c9ab7 by David Binder at 2023-11-22T21:12:29-05:00
Unify the hpc testsuites
The hpc testsuite was split between testsuite/tests/hpc
and the submodule libraries/hpc/test. This commit unifies
the two testsuites in the GHC repository in the directory
testsuite/tests/hpc.
- - - - -
d2733a05 by Alan Zimmerman at 2023-11-22T21:13:05-05:00
EPA: empty tup_tail has noAnn
In Parser.y, the tup_tail rule had the following option
| {- empty -} %shift { return [Left noAnn] }
Once this works through PostProcess.hs, it means we add an extra
Missing constructor if the last item was a comma.
Change the annotation type to a Bool to indicate this, and use the
EpAnn Anchor for the print location for the others.
- - - - -
fa576eb8 by Andreas Klebinger at 2023-11-24T08:29:13-05:00
Fix FMA primops generating broken assembly on x86.
`genFMA3Code` assumed that we had to take extra precations to avoid overwriting
the result of `getNonClobberedReg`. One of these special cases caused a bug resulting
in broken assembly.
I believe we don't need to hadle these cases specially at all, which means this MR simply
deletes the special cases to fix the bug.
Fixes #24160
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34d86315 by Alan Zimmerman at 2023-11-24T08:29:49-05:00
EPA: Remove parenthesizeHsType
This is called from PostProcess.hs, and adds spurious parens.
With the looser version of exact printing we had before we could
tolerate this, as they would be swallowed by the original at the same
place.
But with the next change (remove EpAnnNotUsed) they result in
duplicates in the output.
For Darwin build:
Metric Increase:
MultiLayerModulesTH_OneShot
- - - - -
3ede659d by Vladislav Zavialov at 2023-11-26T06:43:32-05:00
Add name for -Wdeprecated-type-abstractions (#24154)
This warning had no name or flag and was triggered unconditionally.
Now it is part of -Wcompat.
- - - - -
7902ebf8 by Alan Zimmerman at 2023-11-26T06:44:08-05:00
EPA: Remove EpAnnNotUsed
We no longer need the EpAnnNotUsed constructor for EpAnn, as we can
represent an unused annotation with an anchor having a EpaDelta of
zero, and empty comments and annotations.
This simplifies code handling annotations considerably.
Updates haddock submodule
Metric Increase:
parsing001
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471b2672 by Mario Blažević at 2023-11-26T06:44:48-05:00
Bumped the upper bound of text to <2.2
- - - - -
d1bf25c7 by Vladislav Zavialov at 2023-11-26T11:45:49-05:00
Term variable capture (#23740)
This patch changes type variable lookup rules (lookupTypeOccRn) and
implicit quantification rules (filterInScope) so that variables bound
in the term namespace can be captured at the type level
{-# LANGUAGE RequiredTypeArguments #-}
f1 x = g1 @x -- `x` used in a type application
f2 x = g2 (undefined :: x) -- `x` used in a type annotation
f3 x = g3 (type x) -- `x` used in an embedded type
f4 x = ...
where g4 :: x -> x -- `x` used in a type signature
g4 = ...
This change alone does not allow us to accept examples shown above,
but at least it gets them past the renamer.
- - - - -
da863d15 by Vladislav Zavialov at 2023-11-26T11:46:26-05:00
Update Note [hsScopedTvs and visible foralls]
The Note was written before GHC gained support for visible forall in
types of terms. Rewrite a few sentences and use a better example.
- - - - -
b5213542 by Matthew Pickering at 2023-11-27T12:53:59-05:00
testsuite: Add mechanism to collect generic metrics
* Generalise the metric logic by adding an additional field which
allows you to specify how to query for the actual value. Previously
the method of querying the baseline value was abstracted (but always
set to the same thing).
* This requires rejigging how the stat collection works slightly but now
it's more uniform and hopefully simpler.
* Introduce some new "generic" helper functions for writing generic
stats tests.
- collect_size ( deviation, path )
Record the size of the file as a metric
- stat_from_file ( metric, deviation, path )
Read a value from the given path, and store that as a metric
- collect_generic_stat ( metric, deviation, get_stat)
Provide your own `get_stat` function, `lambda way: <Int>`, which
can be used to establish the current value of the metric.
- collect_generic_stats ( metric_info ):
Like collect_generic_stat but provide the whole dictionary of metric
definitions.
{ metric: {
deviation: <Int>
current: lambda way: <Int>
} }
* Introduce two new "size" metrics for keeping track of build products.
- `size_hello_obj` - The size of `hello.o` from compiling hello.hs
- `libdir` - The total size of the `libdir` folder.
* Track the number of modules in the AST tests
- CountDepsAst
- CountDepsParser
This lays the infrastructure for #24191 #22256 #17129
- - - - -
7d9a2e44 by ARATA Mizuki at 2023-11-27T12:54:39-05:00
x86: Don't require -mavx2 when using 256-bit floating-point SIMD primitives
Fixes #24222
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4e5ff6a4 by Alan Zimmerman at 2023-11-27T12:55:15-05:00
EPA: Remove SrcSpanAnn
Now that we only have a single constructor for EpAnn, And it uses a
SrcSpan for its location, we can do away with SrcSpanAnn completely.
It only existed to wrap the original SrcSpan in a location, and
provide a place for the exact print annotation.
For darwin only:
Metric Increase:
MultiLayerModulesTH_OneShot
Updates haddock submodule
- - - - -
e05bca39 by Krzysztof Gogolewski at 2023-11-28T08:00:55-05:00
testsuite: don't initialize testdir to '.'
The test directory is removed during cleanup, if there's an interrupt
that could remove the entire repository.
Fixes #24219
- - - - -
af881674 by Alan Zimmerman at 2023-11-28T08:01:30-05:00
EPA: Clean up mkScope in Ast.hs
Now that we have HasLoc we can get rid of all the custom variants of
mkScope
For deb10-numa
Metric Increase:
libdir
- - - - -
292983c8 by Ben Gamari at 2023-11-28T22:44:28-05:00
distrib: Rediscover otool and install_name_tool on Darwin
In the bindist configure script we must rediscover the `otool` and
`install_name_tool`s since they may be different from the build
environment.
Fixes #24211.
- - - - -
dfe1c354 by Stefan Schulze Frielinghaus at 2023-11-28T22:45:04-05:00
llvmGen: Align objects in the data section
Objects in the data section may be referenced via tagged pointers.
Thus, align those objects to a 4- or 8-byte boundary for 32- or 64-bit
platforms, respectively. Note, this may need to be reconsidered if
objects with a greater natural alignment requirement are emitted as e.g.
128-bit atomics.
Fixes #24163.
- - - - -
f6c486c3 by Matthew Pickering at 2023-11-29T11:08:13-05:00
metrics: Widen libdir and size_hello_obj acceptance window
af8816740d9b8759be1a22af8adcb5f13edeb61d shows that the libdir size can
fluctuate quite significantly even when the change is quite small.
Therefore we widen the acceptance window to 10%.
- - - - -
99a6a49c by Alan Zimmerman at 2023-11-29T11:08:49-05:00
EPA: Clean up TC Monad Utils
We no longer need the alternative variant of addLocM (addLocMA)
nor wrapLocAM, wrapLocSndMA.
aarch64-darwin
Metric Increase:
MultiLayerModulesTH_OneShot
deb10-numa-slow
Metric Decrease:
libdir
- - - - -
cbc03fa0 by Sebastian Graf at 2023-11-30T12:37:21-05:00
perf tests: Move comments into new `Note [Sensitivity to unique increment]` (#19414)
And additionally to T12545, link from T8095, T13386 to this new Note.
- - - - -
c7623b22 by Alan Zimmerman at 2023-11-30T12:37:56-05:00
EPA: EpaDelta for comment has no comments
EpaLocation is used to position things. It has two constructors,
EpaSpan holding a SrcSpan, and EpaDelta with a delta position and a
possible list of comments. The comment list is needed because the
location in EpaDelta has no absolute information to decide which
comments should be emitted before them when printing.
But it is also used for specifying the position of a comment. To
prevent the absurdity of a comment position having a list of comments
in it, we make EpaLocation parameterisable, using comments for the
normal case and a constant for within comments.
Updates haddock submodule.
aarch64-darwin
Metric Decrease:
MultiLayerModulesTH_OneShot
- - - - -
bd8acc0c by Krzysztof Gogolewski at 2023-11-30T12:38:32-05:00
Kind-check body of a required forall
We now require that in 'forall a -> ty', ty has kind TYPE r for some r.
Fixes #24176
- - - - -
010fb784 by Owen Shepherd at 2023-12-03T00:10:09-05:00
docs(NonEmpty/group): Remove incorrect haddock link quotes in code block
- - - - -
cda9c12d by Owen Shepherd at 2023-12-03T00:10:09-05:00
docs(NonEmpty/group): Remove cycle from group haddock example
- - - - -
495265b9 by Owen Shepherd at 2023-12-03T00:10:09-05:00
docs(NonEmpty/group): Use repl haddock syntax in group docs
- - - - -
d134d1de by Owen Shepherd at 2023-12-03T00:10:09-05:00
docs(NonEmpty/group): Use list [] notation in group haddock
- - - - -
dfcf629c by Owen Shepherd at 2023-12-03T00:10:10-05:00
docs(NonEmpty/group): Specify final property of group function in haddock
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cad3b734 by Owen Shepherd at 2023-12-03T00:10:10-05:00
fix: Add missing property of List.group
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bad37656 by Matthew Pickering at 2023-12-03T00:10:46-05:00
testsuite: Fix T21097b test with make 4.1 (deb9)
cee81370cd6ef256f66035e3116878d4cb82e28b recently added a test which
failed on deb9 because the version of make was emitting the recipe
failure to stdout rather than stderr.
One way to fix this is to be more precise in the test about which part
of the output we care about inspecting.
- - - - -
5efdf421 by Matthew Pickering at 2023-12-03T00:11:21-05:00
testsuite: Track size of libdir in bytes
For consistency it's better if we track all size metrics in bytes.
Metric Increase:
libdir
- - - - -
f5eb0f29 by Matthew Pickering at 2023-12-03T00:11:22-05:00
testsuite: Remove rogue trace in testsuite
I accidentally left a trace in the generics metric patch.
- - - - -
d5610737 by Claudio Bley at 2023-12-06T16:13:33-05:00
Only exit ghci in -e mode when :add command fails
Previously, when running `ghci -e ':add Sample.hs'` the process would
exit with exit code 1 if the file exists and could be loaded.
Fixes #24115
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0f0c53a5 by Vladislav Zavialov at 2023-12-06T16:14:09-05:00
T2T in Patterns (#23739)
This patch implements the T2T (term-to-type) transformation in patterns.
Patterns that are checked against a visible forall can now be written
without the `type` keyword:
\(type t) (x :: t) -> ... -- old
\t (x :: t) -> ... -- new
The `t` binder is parsed and renamed as a term pattern (Pat), but
then undergoes a conversion to a type pattern (HsTyPat).
See the new function pat_to_type_pat in compiler/GHC/Tc/Gen/Pat.hs
- - - - -
10a1a6c6 by Sebastian Graf at 2023-12-06T16:14:45-05:00
Pmc: Fix SrcLoc and warning for incomplete irrefutable pats (#24234)
Before, the source location would point at the surrounding function definition,
causing the confusion in #24234.
I also took the opportunity to introduce a new `LazyPatCtx :: HsMatchContext _`
to make the warning message say "irrefutable pattern" instead of "pattern
binding".
- - - - -
36b9a38c by Matthew Pickering at 2023-12-06T16:15:21-05:00
libraries: Bump filepath to 1.4.200.1 and unix to 2.8.4.0
Updates filepath submodule
Updates unix submodule
Fixes #24240
- - - - -
91ff0971 by Matthew Pickering at 2023-12-06T16:15:21-05:00
Submodule linter: Allow references to tags
We modify the submodule linter so that if the bumped commit is a
specific tag then the commit is accepted.
Fixes #24241
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86f652dc by Zubin Duggal at 2023-12-06T16:15:21-05:00
hadrian: set -Wno-deprecations for directory and Win32
The filepath bump to 1.4.200.1 introduces a deprecation warning.
See https://gitlab.haskell.org/ghc/ghc/-/issues/24240
https://github.com/haskell/filepath/pull/206
- - - - -
7ac6006e by Sylvain Henry at 2023-12-06T16:16:02-05:00
Zap OccInfo on case binders during StgCse #14895 #24233
StgCse can revive dead binders:
case foo of dead { Foo x y -> Foo x y; ... }
===>
case foo of dead { Foo x y -> dead; ... } -- dead is no longer dead
So we must zap occurrence information on case binders.
Fix #14895 and #24233
- - - - -
57c391c4 by Sebastian Graf at 2023-12-06T16:16:37-05:00
Cpr: Turn an assertion into a check to deal with some dead code (#23862)
See the new `Note [Dead code may contain type confusions]`.
Fixes #23862.
- - - - -
c1c8abf8 by Zubin Duggal at 2023-12-08T02:25:07-05:00
testsuite: add test for #23944
- - - - -
6329d308 by Zubin Duggal at 2023-12-08T02:25:07-05:00
driver: Only run a dynamic-too pipeline if object files are going to be generated
Otherwise we run into a panic in hscMaybeWriteIface: "Unexpected DT_Dyn state
when writing simple interface" when dynamic-too is enabled
We could remove the panic and just write the interface even if the state is `DT_Dyn`,
but it seems pointless to run the pipeline twice when `hscMaybeWriteIface` is already
designed to write both `hi` and `dyn_hi` files if dynamic-too is enabled.
Fixes #23944.
- - - - -
28811f88 by Simon Peyton Jones at 2023-12-08T05:47:18-05:00
Improve duplicate elimination in SpecConstr
This partially fixes #24229.
See the new Note [Pattern duplicate elimination] in SpecConstr
- - - - -
fec7894f by Simon Peyton Jones at 2023-12-08T05:47:18-05:00
Make SpecConstr deal with casts better
This patch does two things, to fix #23209:
* It improves SpecConstr so that it no longer quantifies over
coercion variables. See Note [SpecConstr and casts]
* It improves the rule matcher to deal nicely with the case where
the rule does not quantify over coercion variables, but the the
template has a cast in it. See Note [Casts in the template]
- - - - -
8db8d2fd by Zubin Duggal at 2023-12-08T05:47:54-05:00
driver: Don't lose track of nodes when we fail to resolve cycles
The nodes that take part in a cycle should include both hs-boot and hs files,
but when we fail to resolve a cycle, we were only counting the nodes from the
graph without boot files.
Fixes #24196
- - - - -
c5b4efd3 by Zubin Duggal at 2023-12-08T05:48:30-05:00
testsuite: Skip MultiLayerModulesTH_OneShot on darwin
See #24177
- - - - -
fae472a9 by Wendao Lee at 2023-12-08T05:49:12-05:00
docs(Data.Char):Add more detailed descriptions for some functions
Related changed function's docs:
-GHC.Unicode.isAlpha
-GHC.Unicode.isPrint
-GHC.Unicode.isAlphaNum
Add more details for what the function will return.
Co-authored-by: Bodigrim <andrew.lelechenko at gmail.com>
- - - - -
ca7510e4 by Malik Ammar Faisal at 2023-12-08T05:49:55-05:00
Fix float parsing in GHC Cmm Lexer
Add test case for bug #24224
- - - - -
645de464 by Sebastian Graf at 2023-12-08T15:54:12+01:00
Make DataCon workers strict in strict fields (#20749)
This patch tweaks `exprIsConApp_maybe`, `exprIsHNF` and friends, and Demand
Analysis so that they exploit and maintain strictness of DataCon workers. See
`Note [Strict fields in Core]` for details.
Very little needed to change, and it puts field seq insertion done by Tag
Inference into a new perspective: That of *implementing* strict field semantics.
Before Tag Inference, DataCon workers are strict. Afterwards they are
effectively lazy and field seqs happen around use sites. History has shown
that there is no other way to guarantee taggedness and thus the STG Strict Field
Invariant.
Knock-on changes:
* `exprIsHNF` previously used `exprOkForSpeculation` on unlifted arguments
instead of recursing into `exprIsHNF`. That regressed the termination
analysis in CPR analysis (which simply calls out to `exprIsHNF`), so I made
it call `exprOkForSpeculation`, too.
* There's a small regression in Demand Analysis, visible in the changed test
output of T16859: Previously, a field seq on a variable would give that
variable a "used exactly once" demand, now it's "used at least once",
because `dmdTransformDataConSig` accounts for future uses of the field
that actually all go through the case binder (and hence won't re-enter the
potential thunk). The difference should hardly be observable.
* The Simplifier's fast path for data constructors only applies to lazy
data constructors now. I observed regressions involving Data.Binary.Put's
`Pair` data type.
* Unfortunately, T21392 does no longer reproduce after this patch, so I marked
it as "not broken" in order to track whether we regress again in the future.
Fixes #20749, the satisfying conclusion of an annoying saga (cf. the ideas
in #21497 and #22475).
Co-authored-by: Jaro Reinders <jaro.reinders at gmail.com>
- - - - -
30 changed files:
- .ghcid
- .gitignore
- .gitlab-ci.yml
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- .gitlab/merge_request_templates/Default.md
- .gitlab/rel_eng/upload.sh
- compiler/GHC/Builtin/Names.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/Cmm/Lexer.x
- compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
- compiler/GHC/CmmToAsm/AArch64/Instr.hs
- compiler/GHC/CmmToAsm/AArch64/Ppr.hs
- compiler/GHC/CmmToAsm/AArch64/Regs.hs
- compiler/GHC/CmmToAsm/Ppr.hs
- compiler/GHC/CmmToAsm/Wasm/FromCmm.hs
- compiler/GHC/CmmToAsm/X86/CodeGen.hs
- compiler/GHC/CmmToAsm/X86/Instr.hs
- compiler/GHC/CmmToAsm/X86/Ppr.hs
- compiler/GHC/CmmToLlvm/Data.hs
- compiler/GHC/Core.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Core/FamInstEnv.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/ConstantFold.hs
- compiler/GHC/Core/Opt/CprAnal.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/7febfe8f1790eb79e325529bc23763bd47d6a2a1...645de46464656e99bec956b720b23e26e2d6fbed
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/7febfe8f1790eb79e325529bc23763bd47d6a2a1...645de46464656e99bec956b720b23e26e2d6fbed
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