[Git][ghc/ghc][wip/fix-marge] 9 commits: Hadrian: fix binary-dir with --docs=none
Ben Gamari
gitlab at gitlab.haskell.org
Fri Apr 12 19:40:52 UTC 2019
Ben Gamari pushed to branch wip/fix-marge at Glasgow Haskell Compiler / GHC
Commits:
c401f8a4 by Sylvain Henry at 2019-04-11T23:51:24Z
Hadrian: fix binary-dir with --docs=none
Hadrian's "binary-dist" target must check that the "docs" directory
exists (it may not since we can disable docs generation).
- - - - -
091195a4 by Ömer Sinan Ağacan at 2019-04-11T23:57:38Z
Remove unused remilestoning script
- - - - -
fa0ccbb8 by Ömer Sinan Ağacan at 2019-04-11T23:57:38Z
Update a panic message
Point users to the right URL
- - - - -
beaa07d2 by Sylvain Henry at 2019-04-12T17:17:21Z
Hadrian: fix ghci wrapper script generation (#16508)
- - - - -
e05df3e1 by Ben Gamari at 2019-04-12T17:23:30Z
gitlab-ci: Ensure that version number has three components
- - - - -
885d2e04 by klebinger.andreas at gmx.at at 2019-04-12T18:40:04Z
Add -ddump-stg-final to dump stg as it is used for codegen.
Intermediate STG does not contain free variables which can be useful
sometimes. So adding a flag to dump that info.
- - - - -
3c759ced by Alp Mestanogullari at 2019-04-12T18:46:54Z
Hadrian: add a --test-accept/-a flag, to mimic 'make accept'
When -a or --test-accept is passed, and if one runs the 'test' target, then
any test failing because of mismatching output and which is not expected to
fail will have its expected output adjusted by the test driver, effectively
considering the new output correct from now on.
When this flag is passed, hadrian's 'test' target becomes sensitive to the
PLATFORM and OS environment variable, just like the Make build system:
- when the PLATFORM env var is set to "YES", when accepting a result, accept it
for the current platform;
- when the OS env var is set to "YES", when accepting a result, accept it
for all wordsizes of the current operating system.
This can all be combined with `--only="..."` and `TEST="..." to only accept
the new output of a subset of tests.
- - - - -
f4b5a6c0 by Alp Mestanogullari at 2019-04-12T18:46:54Z
Hadrian: document -a/--test-accept
- - - - -
7a3c27a7 by Ben Gamari at 2019-04-12T19:40:41Z
gitlab: Don't run lint-submods job on Marge branches
This broke Marge by creating a second pipeline (consisting of only the
`lint-submods` job). Marge then looked at this pipeline and concluded
that CI for her merge branch passed. However, this is ignores the fact
that the majority of the CI jobs are triggered on `merge_request` and
are therefore in another pipeline.
- - - - -
19 changed files:
- .gitlab-ci.yml
- + .gitlab/linters/check-version-number.sh
- compiler/ghci/ByteCodeLink.hs
- compiler/main/DynFlags.hs
- compiler/main/HscMain.hs
- configure.ac
- − distrib/remilestoning.pl
- docs/users_guide/debugging.rst
- hadrian/doc/make.md
- hadrian/doc/testsuite.md
- hadrian/src/CommandLine.hs
- hadrian/src/Rules/BinaryDist.hs
- hadrian/src/Settings/Builders/RunTest.hs
- testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr
- testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr-ws-32-mingw32
- testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr-ws-64-mingw32
- testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr
- testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr-ws-32-mingw32
- testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr-ws-64-mingw32
Changes:
=====================================
.gitlab-ci.yml
=====================================
@@ -59,6 +59,7 @@ ghc-linters:
- validate-whitespace .git $(git rev-list $base..$CI_COMMIT_SHA)
- .gitlab/linters/check-makefiles.py $base $CI_COMMIT_SHA
- .gitlab/linters/check-cpp.py $base $CI_COMMIT_SHA
+ - .gitlab/linters/check-version-number.sh
dependencies: []
tags:
- lint
@@ -84,7 +85,14 @@ lint-submods:
refs:
- master
- /ghc-[0-9]+\.[0-9]+/
- - wip/marge_bot_batch_merge_job
+
+lint-submods-marge:
+ extends: .lint-submods
+ only:
+ refs:
+ - merge_requests
+ variables:
+ - $CI_MERGE_REQUEST_LABELS =~ /.*wip/marge_bot_batch_merge_job.*/
lint-submods-mr:
extends: .lint-submods
=====================================
.gitlab/linters/check-version-number.sh
=====================================
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -e
+
+grep -e -q '\[[0-9]+\.[0-9]+\.[0-9]+\]' configure.ac ||
+ ( echo "error: configure.ac: GHC version number must have three components."; exit 1 )
=====================================
compiler/ghci/ByteCodeLink.hs
=====================================
@@ -154,8 +154,8 @@ linkFail who what
, "the missing library using the -L/path/to/object/dir and -lmissinglibname"
, "flags, or simply by naming the relevant files on the GHCi command line."
, "Alternatively, this link failure might indicate a bug in GHCi."
- , "If you suspect the latter, please send a bug report to:"
- , " glasgow-haskell-bugs at haskell.org"
+ , "If you suspect the latter, please report this as a GHC bug:"
+ , " https://www.haskell.org/ghc/reportabug"
])
=====================================
compiler/main/DynFlags.hs
=====================================
@@ -384,6 +384,7 @@ data DumpFlag
| Opt_D_dump_spec
| Opt_D_dump_prep
| Opt_D_dump_stg
+ | Opt_D_dump_stg_final
| Opt_D_dump_call_arity
| Opt_D_dump_exitify
| Opt_D_dump_stranal
@@ -3339,6 +3340,8 @@ dynamic_flags_deps = [
(setDumpFlag Opt_D_dump_prep)
, make_ord_flag defGhcFlag "ddump-stg"
(setDumpFlag Opt_D_dump_stg)
+ , make_ord_flag defGhcFlag "ddump-stg-final"
+ (setDumpFlag Opt_D_dump_stg_final)
, make_ord_flag defGhcFlag "ddump-call-arity"
(setDumpFlag Opt_D_dump_call_arity)
, make_ord_flag defGhcFlag "ddump-exitify"
=====================================
compiler/main/HscMain.hs
=====================================
@@ -1470,6 +1470,8 @@ doCodeGen hsc_env this_mod data_tycons
let dflags = hsc_dflags hsc_env
let stg_binds_w_fvs = annTopBindingsFreeVars stg_binds
+ dumpIfSet_dyn dflags Opt_D_dump_stg_final
+ "STG for code gen:" (pprGenStgTopBindings stg_binds_w_fvs)
let cmm_stream :: Stream IO CmmGroup ()
cmm_stream = {-# SCC "StgCmm" #-}
StgCmm.codeGen dflags this_mod data_tycons
=====================================
configure.ac
=====================================
@@ -13,7 +13,7 @@ dnl
# see what flags are available. (Better yet, read the documentation!)
#
-AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.9], [glasgow-haskell-bugs at haskell.org], [ghc-AC_PACKAGE_VERSION])
+AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.9.0], [glasgow-haskell-bugs at haskell.org], [ghc-AC_PACKAGE_VERSION])
# Set this to YES for a released version, otherwise NO
: ${RELEASE=NO}
=====================================
distrib/remilestoning.pl deleted
=====================================
@@ -1,119 +0,0 @@
-#!/usr/bin/env perl
-
-use warnings;
-use strict;
-
-use DBI;
-
-# ===== Config:
-
-my $dbfile = "trac.db";
-my $milestone = "7.4.1";
-my $test = 0;
-
-# ===== Code:
-
-my $dbh = DBI->connect("dbi:SQLite:dbname=$dbfile","","", {});
-
-my %emailof;
-my %ticketsfor;
-
-sub getUserAddress {
- my $sth = $dbh->prepare("SELECT sid, value FROM session_attribute WHERE name = 'email'");
- $sth->execute();
- while (my $result = $sth->fetchrow_hashref("NAME_lc")) {
- my $username = $result->{sid};
- my $email = $result->{value};
- if (defined($emailof{$username})) {
- die "Two e-mail addresses found for $username";
- }
- if ($email =~ /@/) {
- $emailof{$username} = $email;
- }
- else {
- # warn "The e-mail address $email for $username contains no @";
- }
- }
- $sth->finish;
-}
-
-sub doTickets {
- my $sth = $dbh->prepare("SELECT id, summary, reporter, cc FROM ticket WHERE milestone = ? AND status = 'new'");
- $sth->execute($milestone);
- while (my $result = $sth->fetchrow_hashref("NAME_lc")) {
- my $ticket = $result->{id};
- my $title = $result->{summary};
- my $reporter = $result->{reporter};
- my $cc = $result->{cc};
- my %addresses;
- my $address_added;
- for my $who ($reporter, split /[ ,]+/, $cc) {
- $address_added = 0;
- if ($who =~ /@/) {
- $addresses{$who} = 1;
- $address_added = 1;
- }
- if (defined($emailof{$who})) {
- $addresses{$emailof{$who}} = 1;
- $address_added = 1;
- }
- if ($who ne "nobody" && $address_added eq 0) {
- # warn "No address found for $who";
- }
- }
- for my $address (keys(%addresses)) {
- $ticketsfor{$address}{$ticket}{"title"} = $title;
- }
- }
- $sth->finish;
-}
-
-sub doEmails {
- for my $email (sort (keys %ticketsfor)) {
- if ($test ne 0) {
- open FH, ">&STDOUT";
- }
- else {
- open(FH, '|-', 'mail', '-s', 'GHC bugs', '-a', 'From: glasgow-haskell-bugs at haskell.org', $email) or die "Running mail failed: $!";
- }
- print FH <<'EOF';
-
-Hello,
-
-You are receiving this mail because you are the reporter, or on the CC
-list, for one or more GHC tickets that are automatically having their
-priority reduced due to our post-release ticket handling policy:
- https://gitlab.haskell.org/ghc/ghc/wikis/working-conventions/bug-tracker#re-milestoning-tickets-after-a-release
-
-The list of tickets for which you are the reporter or on the CC list is
-given below. If any of these are causing problems for you, please let us
-know on glasgow-haskell-bugs at haskell.org and we'll look at raising the
-priority.
-
-Better still, if you are able to make any progress on any of the tickets
-yourself (whether that be actually fixing the bug, or just making it
-easier for someone else to - for example, by making a small,
-self-contained test-case), then that would be a great help. We at GHC HQ
-have limited resources, so if anything is waiting for us to make
-progress then it can be waiting a long time!
-EOF
- for my $ticket (sort {$a <=> $b} (keys %{$ticketsfor{$email}})) {
- my $title = $ticketsfor{$email}{$ticket}{"title"};
- print FH "\n";
- print FH "#$ticket $title:\n";
- print FH " https://gitlab.haskell.org/ghc/ghc/issues/$ticket\n";
- }
- print FH <<'EOF';
-
---
-The GHC Team
-http://www.haskell.org/ghc/
-EOF
- close FH or die "Close failed: $!";
- }
-}
-
-&getUserAddress();
-&doTickets();
-&doEmails();
-
=====================================
docs/users_guide/debugging.rst
=====================================
@@ -380,6 +380,11 @@ These flags dump various phases of GHC's STG pipeline.
Show the output of the intermediate STG-to-STG pass. (*lots* of output!)
+.. ghc-flag:: -ddump-stg-final
+ :shortdesc: Show output of last STG pass.
+ :type: dynamic
+
+ Show the output of the last STG pass before we generate Cmm.
C-\\- representation
~~~~~~~~~~~~~~~~~~~~
=====================================
hadrian/doc/make.md
=====================================
@@ -123,6 +123,8 @@ time you fire up a build. This is not possible with the Make build system.
make test # (1)
make test TEST=plugins01 # (2)
make test TEST="plugins01 plugins02" # (3)
+ make accept # (4)
+ PLATFORM=YES OS=YES make accept # (5)
# Hadrian
@@ -134,6 +136,12 @@ time you fire up a build. This is not possible with the Make build system.
build test --only="plugins01 plugins02" # equivalent to (3)
TEST="plugins01 plugins02" build test # equivalent to (3)
TEST=plugins01 build test --only=plugins02 # equivalent to (3)
+
+ build test -a # equivalent to (4)
+ build test --test-accept # equivalent to (4)
+
+ PLATFORM=YES OS=YES build test -a # equivalent to (5)
+ PLATFORM=YES OS=YES build test --test-accept # equivalent to (5)
```
As illustrated in the examples above, you can use the `TEST` environment
=====================================
hadrian/doc/testsuite.md
=====================================
@@ -40,6 +40,31 @@ TEST="test1 test2" build test
TEST="test1 test2" build test --only="test3 test4"
```
+## Accepting new output
+
+You can use the `-a` or `--test-accept` flag to "accept" the new
+output of your tests. This has the effect of updating the expected
+output of all the tests that fail due to mismatching output, so as to
+consider the new output the correct one.
+
+When the `PLATFORM` environment variable is set to `YES`, passing this flag has
+the effect of accepting the new output for the current platform.
+
+When the `OS` environment variable is set to `YES`, passing this flag has the
+effect of accepting the new output for all word sizes on the current OS.
+
+``` sh
+# accept new output for all tests
+build test -a
+
+# just run and accept new output for 'test123' and 'test456'
+build test -a --only="test123 test456"
+
+# accept new output for current platform and all word sizes for
+# the current OS, for all tests
+PLATFORM=YES OS=YES build test -a
+```
+
## Performance tests
You can use the `--only-perf` and `--skip-perf` flags to
=====================================
hadrian/src/CommandLine.hs
=====================================
@@ -56,7 +56,8 @@ data TestArgs = TestArgs
, testSpeed :: TestSpeed
, testSummary :: Maybe FilePath
, testVerbosity :: Maybe String
- , testWays :: [String] }
+ , testWays :: [String]
+ , testAccept :: Bool}
deriving (Eq, Show)
-- | Default value for `TestArgs`.
@@ -73,7 +74,8 @@ defaultTestArgs = TestArgs
, testSpeed = TestNormal
, testSummary = Nothing
, testVerbosity = Nothing
- , testWays = [] }
+ , testWays = []
+ , testAccept = False }
readConfigure :: Either String (CommandLineArgs -> CommandLineArgs)
readConfigure = Right $ \flags -> flags { configure = True }
@@ -124,6 +126,9 @@ readProgressInfo ms =
readTestKeepFiles :: Either String (CommandLineArgs -> CommandLineArgs)
readTestKeepFiles = Right $ \flags -> flags { testArgs = (testArgs flags) { testKeepFiles = True } }
+readTestAccept :: Either String (CommandLineArgs -> CommandLineArgs)
+readTestAccept = Right $ \flags -> flags { testArgs = (testArgs flags) { testAccept = True } }
+
readTestCompiler :: Maybe String -> Either String (CommandLineArgs -> CommandLineArgs)
readTestCompiler compiler = maybe (Left "Cannot parse compiler") (Right . set) compiler
where
@@ -245,7 +250,8 @@ optDescrs =
, Option [] ["test-verbose"] (OptArg readTestVerbose "TEST_VERBOSE")
"A verbosity value between 0 and 5. 0 is silent, 4 and higher activates extra output."
, Option [] ["test-way"] (OptArg readTestWay "TEST_WAY")
- "only run these ways" ]
+ "only run these ways"
+ , Option ['a'] ["test-accept"] (NoArg readTestAccept) "Accept new output of tests" ]
-- | A type-indexed map containing Hadrian command line arguments to be passed
-- to Shake via 'shakeExtra'.
=====================================
hadrian/src/Rules/BinaryDist.hs
=====================================
@@ -121,7 +121,13 @@ bindistRules = do
copyDirectory (ghcBuildDir -/- "lib") bindistFilesDir
copyDirectory (rtsIncludeDir) bindistFilesDir
need ["docs"]
- copyDirectory (root -/- "docs") bindistFilesDir
+ -- TODO: we should only embed the docs that have been generated
+ -- depending on the current settings (flavours' "ghcDocs" field and
+ -- "--docs=.." command-line flag)
+ -- Currently we embed the "docs" directory if it exists but it may
+ -- contain outdated or even invalid data.
+ whenM (doesDirectoryExist (root -/- "docs")) $ do
+ copyDirectory (root -/- "docs") bindistFilesDir
when windows $ do
copyDirectory (root -/- "mingw") bindistFilesDir
-- we use that opportunity to delete the .stamp file that we use
@@ -141,7 +147,7 @@ bindistRules = do
(["configure", "Makefile"] ++ bindistInstallFiles)
need $ map ((bindistFilesDir -/- "wrappers") -/-) ["check-api-annotations"
, "check-ppr", "ghc", "ghc-iserv", "ghc-pkg"
- , "ghci-script", "ghci", "haddock", "hpc", "hp2ps", "hsc2hs"
+ , "ghci-script", "haddock", "hpc", "hp2ps", "hsc2hs"
, "runghc"]
-- Finally, we create the archive <root>/bindist/ghc-X.Y.Z-platform.tar.xz
@@ -287,9 +293,8 @@ bindistMakefile = unlines
, "\tdone"
, ""
, "install_ghci:"
- , "\t at echo \"Copying and installing ghci\""
- , "\t$(CREATE_SCRIPT) '$(WrapperBinsDir)/ghci'"
- , "\t at echo \"#!$(SHELL)\" >> '$(WrapperBinsDir)/ghci'"
+ , "\t at echo \"Installing ghci wrapper\""
+ , "\t at echo \"#!$(SHELL)\" > '$(WrapperBinsDir)/ghci'"
, "\tcat wrappers/ghci-script >> '$(WrapperBinsDir)/ghci'"
, "\t$(EXECUTABLE_FILE) '$(WrapperBinsDir)/ghci'"
, ""
@@ -325,6 +330,7 @@ bindistMakefile = unlines
, "\t\t$(call installscript,$p,$(WrapperBinsDir)/$p," ++
"$(WrapperBinsDir),$(ActualBinsDir),$(ActualBinsDir)/$p," ++
"$(ActualLibsDir),$(docdir),$(includedir)))"
+ , "\trm -f '$(WrapperBinsDir)/ghci-script'" -- FIXME: we shouldn't generate it in the first place
, ""
, "PKG_CONFS = $(wildcard $(ActualLibsDir)/package.conf.d/*)"
, "update_package_db:"
@@ -350,7 +356,6 @@ bindistMakefile = unlines
wrapper :: FilePath -> String
wrapper "ghc" = ghcWrapper
wrapper "ghc-pkg" = ghcPkgWrapper
-wrapper "ghci" = ghciWrapper
wrapper "ghci-script" = ghciScriptWrapper
wrapper "haddock" = haddockWrapper
wrapper "hsc2hs" = hsc2hsWrapper
@@ -367,9 +372,6 @@ ghcPkgWrapper = unlines
[ "PKGCONF=\"$libdir/package.conf.d\""
, "exec \"$executablename\" --global-package-db \"$PKGCONF\" ${1+\"$@\"}" ]
-ghciWrapper :: String
-ghciWrapper = "exec \"$executablename\" --interactive \"$@\"\n"
-
haddockWrapper :: String
haddockWrapper = "exec \"$executablename\" -B\"$libdir\" -l\"$libdir\" ${1+\"$@\"}\n"
=====================================
hadrian/src/Settings/Builders/RunTest.hs
=====================================
@@ -71,6 +71,11 @@ runTestBuilderArgs = builder RunTest ? do
debugged <- read <$> getTestSetting TestGhcDebugged
keepFiles <- expr (testKeepFiles <$> userSetting defaultTestArgs)
+ accept <- expr (testAccept <$> userSetting defaultTestArgs)
+ (acceptPlatform, acceptOS) <- expr . liftIO $
+ (,) <$> (maybe False (=="YES") <$> lookupEnv "PLATFORM")
+ <*> (maybe False (=="YES") <$> lookupEnv "OS")
+
windows <- expr windowsHost
darwin <- expr osxHost
threads <- shakeThreads <$> expr getShakeOptions
@@ -95,6 +100,9 @@ runTestBuilderArgs = builder RunTest ? do
, arg "-e", arg $ "darwin=" ++ show darwin
, arg "-e", arg $ "config.local=False"
, arg "-e", arg $ "config.cleanup=" ++ show (not keepFiles)
+ , arg "-e", arg $ "config.accept=" ++ show accept
+ , arg "-e", arg $ "config.accept_platform=" ++ show acceptPlatform
+ , arg "-e", arg $ "config.accept_os=" ++ show acceptOS
, arg "-e", arg $ "config.exeext=" ++ quote exe
, arg "-e", arg $ "config.compiler_debugged=" ++ quote (yesNo debugged)
, arg "-e", arg $ "ghc_debugged=" ++ quote (yesNo debugged)
=====================================
testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
=====================================
testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr-ws-32-mingw32
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
=====================================
testsuite/tests/rts/T11223/T11223_link_order_a_b_2_fail.stderr-ws-64-mingw32
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
=====================================
testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
=====================================
testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr-ws-32-mingw32
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
=====================================
testsuite/tests/rts/T11223/T11223_simple_duplicate_lib.stderr-ws-64-mingw32
=====================================
@@ -20,6 +20,6 @@ archives or DLLs needed by your current session. Restart GHCi, specifying
the missing library using the -L/path/to/object/dir and -lmissinglibname
flags, or simply by naming the relevant files on the GHCi command line.
Alternatively, this link failure might indicate a bug in GHCi.
-If you suspect the latter, please send a bug report to:
- glasgow-haskell-bugs at haskell.org
+If you suspect the latter, please report this as a GHC bug:
+ https://www.haskell.org/ghc/reportabug
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/43274e796fd909adfca42e32e18f62c8e7854af9...7a3c27a7bc8f6530fc16f2556c9292fe67ca0da1
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/43274e796fd909adfca42e32e18f62c8e7854af9...7a3c27a7bc8f6530fc16f2556c9292fe67ca0da1
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