[Git][ghc/ghc][wip/or-pats] 27 commits: Refresh profiling docs
David (@knothed)
gitlab at gitlab.haskell.org
Thu Feb 16 13:33:12 UTC 2023
David pushed to branch wip/or-pats at Glasgow Haskell Compiler / GHC
Commits:
1e9eac1c by Matthew Pickering at 2023-02-13T11:36:41+01:00
Refresh profiling docs
I went through the whole of the profiling docs and tried to amend them
to reflect current best practices and tooling. In particular I removed
some old references to tools such as hp2any and replaced them with
references to eventlog2html.
- - - - -
da208b9a by Matthew Pickering at 2023-02-13T11:36:41+01:00
docs: Add section about profiling and foreign calls
Previously there was no documentation for how foreign calls interacted
with the profiler. This can be quite confusing for users so getting it
into the user guide is the first step to a potentially better solution.
See the ticket for more insightful discussion.
Fixes #21764
- - - - -
081640f1 by Bodigrim at 2023-02-13T12:51:52-05:00
Document that -fproc-alignment was introduced only in GHC 8.6
- - - - -
16adc349 by Sven Tennie at 2023-02-14T11:26:31-05:00
Add clangd flag to include generated header files
This enables clangd to correctly check C files that import Rts.h.
(The added include directory contains ghcautoconf.h et. al.)
- - - - -
c399ccd9 by amesgen at 2023-02-14T11:27:14-05:00
Mention new `Foreign.Marshal.Pool` implementation in User's Guide
- - - - -
b9282cf7 by Ben Gamari at 2023-02-14T11:27:50-05:00
upload_ghc_libs: More control over which packages to operate on
Here we add a `--skip` flag to `upload_ghc_libs`, making it easier to
limit which packages to upload. This is often necessary when one package
is not uploadable (e.g. see #22740).
- - - - -
aa3a262d by PHO at 2023-02-14T11:28:29-05:00
Assume platforms support rpaths if they use either ELF or Mach-O
Not only Linux, Darwin, and FreeBSD support rpaths. Determine the usability
of rpaths based on the object format, not on OS.
- - - - -
47716024 by PHO at 2023-02-14T11:29:09-05:00
RTS linker: Improve compatibility with NetBSD
1. Hint address to NetBSD mmap(2) has a different semantics from that of
Linux. When a hint address is provided, mmap(2) searches for a free
region at or below the hint but *never* above it. This means we can't
reliably search for free regions incrementally on the userland,
especially when ASLR is enabled. Let the kernel do it for us if we don't
care where the mapped address is going to be.
2. NetBSD not only hates to map pages as rwx, but also disallows to switch
pages from rw- to r-x unless the intention is declared when pages are
initially requested. This means we need a new MemoryAccess mode for
pages that are going to be changed to r-x.
- - - - -
11de324a by Li-yao Xia at 2023-02-14T11:29:49-05:00
base: Move changelog entry to its place
- - - - -
75930424 by Ben Gamari at 2023-02-14T11:30:27-05:00
nativeGen/AArch64: Emit Atomic{Read,Write} inline
Previously the AtomicRead and AtomicWrite operations were emitted as
out-of-line calls. However, these tend to be very important for
performance, especially the RELAXED case (which only exists for
ThreadSanitizer checking).
Fixes #22115.
- - - - -
d6411d6c by Andreas Klebinger at 2023-02-14T11:31:04-05:00
Fix some correctness issues around tag inference when targeting the bytecode generator.
* Let binders are now always assumed untagged for bytecode.
* Imported referenced are now always assumed to be untagged for bytecode.
Fixes #22840
- - - - -
9fb4ca89 by sheaf at 2023-02-14T11:31:49-05:00
Introduce warning for loopy superclass solve
Commit aed1974e completely re-engineered the treatment of loopy
superclass dictionaries in instance declarations. Unfortunately,
it has the potential to break (albeit in a rather minor way) user code.
To alleviate migration concerns, this commit re-introduces the old
behaviour. Any reliance on this old behaviour triggers a warning,
controlled by `-Wloopy-superclass-solve`. The warning text explains
that GHC might produce bottoming evidence, and provides a migration
strategy.
This allows us to provide a graceful migration period, alerting users
when they are relying on this unsound behaviour.
Fixes #22912 #22891 #20666 #22894 #22905
- - - - -
1928c7f3 by Cheng Shao at 2023-02-14T11:32:26-05:00
rts: make it possible to change mblock size on 32-bit targets
The MBLOCK_SHIFT macro must be the single source of truth for defining
the mblock size, and changing it should only affect performance, not
correctness. This patch makes it truly possible to reconfigure mblock
size, at least on 32-bit targets, by fixing places which implicitly
relied on the previous MBLOCK_SHIFT constant. Fixes #22901.
- - - - -
78aa3b39 by Simon Hengel at 2023-02-14T11:33:06-05:00
Update outdated references to notes
- - - - -
e8baecd2 by meooow25 at 2023-02-14T11:33:49-05:00
Documentation: Improve Foldable1 documentation
* Explain foldrMap1, foldlMap1, foldlMap1', and foldrMap1' in greater
detail, the text is mostly adapted from documentation of Foldable.
* Describe foldr1, foldl1, foldl1' and foldr1' in terms of the above
functions instead of redoing the full explanation.
* Small updates to documentation of fold1, foldMap1 and toNonEmpty,
again adapting from Foldable.
* Update the foldMap1 example to lists instead of Sum since this is
recommended for lazy right-associative folds.
Fixes #22847
- - - - -
85a1a575 by romes at 2023-02-14T11:34:25-05:00
fix: Mark ghci Prelude import as implicit
Fixes #22829
In GHCi, we were creating an import declaration for Prelude but we were
not setting it as an implicit declaration. Therefore, ghci's import of
Prelude triggered -Wmissing-import-lists.
Adds regression test T22829 to testsuite
- - - - -
3b019a7a by Cheng Shao at 2023-02-14T11:35:03-05:00
compiler: fix generateCgIPEStub for no-tables-next-to-code builds
generateCgIPEStub already correctly implements the CmmTick finding
logic for when tables-next-to-code is on/off, but it used the wrong
predicate to decide when to switch between the two. Previously it
switches based on whether the codegen is unregisterised, but there do
exist registerised builds that disable tables-next-to-code! This patch
corrects that problem. Fixes #22896.
- - - - -
08c0822c by doyougnu at 2023-02-15T00:16:39-05:00
docs: release notes, user guide: add js backend
Follow up from #21078
- - - - -
79d8fd65 by Bryan Richter at 2023-02-15T00:17:15-05:00
Allow failure in nightly-x86_64-linux-deb10-no_tntc-validate
See #22343
- - - - -
9ca51f9e by Cheng Shao at 2023-02-15T00:17:53-05:00
rts: add the rts_clearMemory function
This patch adds the rts_clearMemory function that does its best to
zero out unused RTS memory for a wasm backend use case. See the
comment above rts_clearMemory() prototype declaration for more
detailed explanation. Closes #22920.
- - - - -
26df73fb by Oleg Grenrus at 2023-02-15T22:20:57-05:00
Add -single-threaded flag to force single threaded rts
This is the small part of implementing
https://github.com/ghc-proposals/ghc-proposals/pull/240
- - - - -
631c6c72 by Cheng Shao at 2023-02-16T06:43:09-05:00
docs: add a section for the wasm backend
Fixes #22658
- - - - -
1878e0bd by Bryan Richter at 2023-02-16T06:43:47-05:00
tests: Mark T12903 fragile everywhere
See #21184
- - - - -
b9420eac by Bryan Richter at 2023-02-16T06:43:47-05:00
Mark all T5435 variants as fragile
See #22970.
- - - - -
df3d94bd by Sylvain Henry at 2023-02-16T06:44:33-05:00
Testsuite: mark T13167 as fragile for JS (#22921)
- - - - -
324e925b by Sylvain Henry at 2023-02-16T06:45:15-05:00
JS: disable debugging info for heap objects
- - - - -
62a670d8 by David Knothe at 2023-02-16T14:32:54+01:00
Implement Or Patterns (Proposal 0522)
This commit introduces a language extension, `OrPatterns`, as described in proposal 0522.
It extends the syntax by the production
`pat -> (one of pat1, ..., patk)`.
The or-pattern `pat` succeeds iff one of the patterns `pat1`, ..., `patk` succeed, in this order.
Currently, or-patterns cannot bind variables. They are still of great use as they discourage the use of wildcard patterns in favour of writing out all "default" cases explicitly:
```
isIrrefutableHsPat pat = case pat of
...
(one of WildPat{}, VarPat{}, LazyPat{})
= True
(one of PArrPat{}, ConPatIn{}, LitPat{}, NPat{}, NPlusKPat{}, ListPat{})
= False
```
This makes code safer where data types are extended now and then - just like GHC's `Pat` in the example when adding the new `OrPat` constructor. This would be catched by `-fwarn-incomplete-patterns`, but not when a wildcard pattern was used.
- - - - -
30 changed files:
- .gitlab/gen_ci.hs
- .gitlab/jobs.yaml
- .gitlab/rel_eng/upload_ghc_libs.py
- compile_flags.txt
- compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
- compiler/GHC/CmmToAsm/AArch64/Instr.hs
- compiler/GHC/CmmToAsm/AArch64/Ppr.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Driver/Config/Stg/Pipeline.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/GenerateCgIPEStub.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Binds.hs
- compiler/GHC/Hs/ImpExp.hs
- compiler/GHC/Hs/Pat.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Pmc/Check.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Pmc/Types.hs
- compiler/GHC/HsToCore/Utils.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Parser.y
- compiler/GHC/Parser/Annotation.hs
- compiler/GHC/Parser/Errors/Ppr.hs
- compiler/GHC/Parser/Errors/Types.hs
- compiler/GHC/Parser/Lexer.x
- compiler/GHC/Parser/PostProcess.hs
- compiler/GHC/Rename/Bind.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/5c5a93f59ab960b65d4b38af233d426309868af2...62a670d8c4ce5e3fdd1c4c3abc066493689dd20a
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/5c5a93f59ab960b65d4b38af233d426309868af2...62a670d8c4ce5e3fdd1c4c3abc066493689dd20a
You're receiving this email because of your account on gitlab.haskell.org.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-commits/attachments/20230216/31ce2108/attachment-0001.html>
More information about the ghc-commits
mailing list