[Git][ghc/ghc][wip/romes/ncg-perf] 33 commits: compiler: Turn `FinderCache` into a record of operations so that GHC API clients can
Rodrigo Mesquita (@alt-romes)
gitlab at gitlab.haskell.org
Wed Jul 10 10:27:27 UTC 2024
Rodrigo Mesquita pushed to branch wip/romes/ncg-perf at Glasgow Haskell Compiler / GHC
Commits:
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
-------------------------
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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).
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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.
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70389749 by Adam Gundry at 2024-07-04T11:12:23-04:00
Use structured error representation when reloading a nonexistent module
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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
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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
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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
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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
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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
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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
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1b968d16 by Mauricio at 2024-07-04T11:12:59-04:00
AST: Remove GHC.Utils.Assert from GHC
Simple cleanup.
Progress towards #21592
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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.
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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`.
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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
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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
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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
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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
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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.
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a1a27312 by Rodrigo Mesquita at 2024-07-10T11:26:58+01:00
ngc: Workaround WW vs SPEC bug in pprinting
Adds INLINABLE to `pprName` and `pprCLabelStyle` which turned up in a
profile as unspecialised at types where it should have been specialised.
The INLINABLE pragma works around a bug which causes specialisation
to be missed due to Worker Wrapper (#25060).
See also #25060 and #21851
Specialising these functions improves compile time allocations:
geo. mean -0.5%
minimum -3.2%
maximum +0.2%
-------------------------
Metric Decrease:
ManyAlternatives
ManyConstructors
T12707
T13035
T13379
T1969
T9961
-------------------------
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02c0738e by Rodrigo Mesquita at 2024-07-10T11:26:58+01:00
ncg: Don't execute dwarfGen for SDoc unnecessarily
`dwarfGen @SDoc` is only needed if -ddump-asm is enabled (see emitNativeCode).
Matching on the tuple forced unnecessary execution since the unique supply
is threaded through -- use a lazy pattern instead.
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7bf06120 by Rodrigo Mesquita at 2024-07-10T11:26:58+01:00
ncg: INLINEABLE regAlloc
regAlloc showed up in a time profile unspecialised, and making sure it
is specialised is noticeable in the profile.
Enabling it shaved off some 15ms compiling Cabal on my machine.
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b444aec8 by Rodrigo Mesquita at 2024-07-10T11:26:58+01:00
ncg perf: WIP SPECIALISE Line SDoc #25060
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30 changed files:
- + .gitlab/README.md
- compiler/GHC.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Cmm/CLabel.hs
- compiler/GHC/Cmm/DebugBlock.hs
- compiler/GHC/Cmm/Reg.hs
- compiler/GHC/CmmToAsm.hs
- compiler/GHC/CmmToAsm/AArch64/Ppr.hs
- compiler/GHC/CmmToAsm/Dwarf/Constants.hs
- compiler/GHC/CmmToAsm/Dwarf/Types.hs
- compiler/GHC/CmmToAsm/PPC/Ppr.hs
- compiler/GHC/CmmToAsm/Ppr.hs
- compiler/GHC/CmmToAsm/Reg/Linear.hs
- compiler/GHC/CmmToAsm/X86/CodeGen.hs
- compiler/GHC/CmmToAsm/X86/Ppr.hs
- compiler/GHC/CmmToLlvm.hs
- compiler/GHC/CmmToLlvm/Ppr.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Core/TyCo/Rep.hs-boot
- compiler/GHC/CoreToIface.hs
- compiler/GHC/Driver/Errors/Ppr.hs
- compiler/GHC/Driver/Errors/Types.hs
- compiler/GHC/Driver/Make.hs
- compiler/GHC/Driver/MakeFile.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Lit.hs
- + compiler/GHC/Hs/Specificity.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Type.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/7babce16cce00444dbc417d3dd2e94fc5d21d816...b444aec86bf87af66d36677cb5b86c40607c522c
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