[ANNOUNCE] GHC 8.2.1 release candidate 2
George Colpitts
george.colpitts at gmail.com
Wed May 17 11:52:32 UTC 2017
Hi Ben
I built from source and ran the tests on my Mac and found some
problems. I'm not sure if the failing tests have been ran successfully
by others on this platform. I did "make slowtest". Maybe the problem
only happens on my machine.
I'm new to running the testsuite and not sure how the sleep settings on my
computer affect long running computations.
- If I want to run a long running test such as "make slowtest" overnight
will my computer go to sleep preventing the test from running? i.e. should
I invoke it with something like "caffeinate -i make slowtest" ?
I almost didn't run the tests assuming they had been run as part of the
release process but then I guessed that maybe slowtest had not been run. It
would be a pain but would it be worth documenting which tests had been run
on which platforms?
I assume I should file a bug for the following?
make TEST=dynamic-paper WAY=profasm
...
=====> dynamic-paper(profasm) 1 of 1 [0, 0, 0]
cd "./dependent/should_compile/dynamic-paper.run" &&
"/Users/gcolpitts/Downloads/ghc-8.2.0.20170507/inplace/bin/ghc-stage2" -c
dynamic-paper.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts
-fno-warn-missed-specialisations -fshow-warning-groups
-fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -O
-prof -static -fprof-auto
Compile failed (exit code 1) errors were:
ghc-stage2: panic! (the 'impossible' happened)
(GHC version 8.2.0.20170507 for x86_64-apple-darwin):
Simplifier ticks exhausted
When trying UnfoldingDone delta
To increase the limit, use -fsimpl-tick-factor=N (default 100)
If you need to do this, let GHC HQ know, and what factor you needed
To see detailed counts use -ddump-simpl-stats
Total ticks: 143842
Call stack:
CallStack (from HasCallStack):
prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1134:58 in
ghc:Outputable
callStackDoc, called at compiler/utils/Outputable.hs:1138:37 in
ghc:Outputable
pprPanic, called at compiler/simplCore/SimplMonad.hs:199:31 in
ghc:SimplMonad
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
*** unexpected failure for dynamic-paper(profasm)
Unexpected results from:
TEST="dynamic-paper"
SUMMARY for test run started at Wed May 17 08:19:59 2017 ADT
0:00:06 spent to go through
1 total tests, which gave rise to
5 test cases, of which
4 were skipped
0 had missing libraries
0 expected passes
0 expected failures
0 caused framework failures
0 caused framework warnings
0 unexpected passes
1 unexpected failures
0 unexpected stat failures
Unexpected failures:
dependent/should_compile/dynamic-paper.run dynamic-paper [exit code
non-0] (profasm)
It fails with -fsimpl-tick-factor=1000 also:
make TEST=dynamic-paper WAY=profasm EXTRA_HC_OPTS='-fsimpl-tick-factor=1000'
...
cd "./dependent/should_compile/dynamic-paper.run" &&
"/Users/gcolpitts/Downloads/ghc-8.2.0.20170507/inplace/bin/ghc-stage2" -c
dynamic-paper.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts
-fsimpl-tick-factor=1000 -fno-warn-missed-specialisations
-fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret
-dno-debug-output -O -prof -static -fprof-auto
Compile failed (exit code 1) errors were:
ghc-stage2: panic! (the 'impossible' happened)
(GHC version 8.2.0.20170507 for x86_64-apple-darwin):
Simplifier ticks exhausted
When trying UnfoldingDone delta
To increase the limit, use -fsimpl-tick-factor=N (default 100)
If you need to do this, let GHC HQ know, and what factor you needed
To see detailed counts use -ddump-simpl-stats
Total ticks: 1438402
Call stack:
CallStack (from HasCallStack):
prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1134:58 in
ghc:Outputable
callStackDoc, called at compiler/utils/Outputable.hs:1138:37 in
ghc:Outputable
pprPanic, called at compiler/simplCore/SimplMonad.hs:199:31 in
ghc:SimplMonad
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
*** unexpected failure for dynamic-paper(profasm)
Unexpected results from:
TEST="dynamic-paper"
SUMMARY for test run started at Wed May 17 08:29:43 2017 ADT
0:00:35 spent to go through
1 total tests, which gave rise to
5 test cases, of which
4 were skipped
0 had missing libraries
0 expected passes
0 expected failures
0 caused framework failures
0 caused framework warnings
0 unexpected passes
1 unexpected failures
0 unexpected stat failures
Unexpected failures:
dependent/should_compile/dynamic-paper.run dynamic-paper [exit code
non-0] (profasm)
Cheers
George
On Mon, May 15, 2017 at 11:48 PM Ben Gamari <ben at well-typed.com> wrote:
>
> Hello everyone,
>
> The GHC team is very pleased to announce the second candidate of the
> 8.2.1 release of the Glasgow Haskell Compiler. Source and binary
> distributions are available at
>
> https://downloads.haskell.org/~ghc/8.2.1-rc2/
>
> This is the second of what will likely be either two or three release
> candidates leading up the final 8.2.1 release. This release will
> feature,
>
> * A new type-indexed Typeable implementation
>
> * The long awaited Backpack
>
> * Deriving strategies for disambiguating DeriveAnyClass,
> GeneralizedNewtypeDeriving, and stock mechanisms
>
> * Overloaded record fields
>
> * Improved compiler performance
>
> * Better code generation through more robust tracking of join points
>
> * Compact regions for more efficient garbage collection and serialization
>
> * Better support for machines with non-uniform memory architectures
>
> * More robust support for levity (e.g. RuntimeRep) polymorphism
>
> * A simple interface for streaming eventlog data from live processes
>
> * Further refinement of DWARF support
>
> This candidate fixes most of the issues present in release candidate
> one including,
>
> * #13233: typePrimRep panic while compiling GHC with profiling enabled
> * #13509: type error involving unboxed tuples
> * #13426: compile-time memory-usage regression
> * #13560: Windows binary distributions carry absolute paths to toolchain
> * #13585: Control.Lens.Wrapped.ala causes compiler panic
> * #13623: Join points produce bad code for stream fusion
>
> As always, please let us know if you have difficulty. Thanks to everyone
> who has contributed!
>
> Happy testing,
>
> - Ben
> _______________________________________________
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> ghc-devs at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
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