Timeline


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Jan 19, 2013:

12:26 PM Ticket #2900 (Confusing error message for monadic function with wrong number of ...) closed by monoidal
fixed: GHC 7.6 gives […]
10:09 AM Ticket #1702 (type operator precedences don't work in contexts) closed by monoidal
fixed: The code works fine in 7.6, with a minor change (type operators now do not …
10:01 AM Ticket #7609 (Backticks in an an error message) created by monoidal
[…] gives an error message: […] which should be a `X` a. …
4:21 AM NewtypeWrappers edited by shelarcy
fix typo (diff)
3:58 AM Ticket #7608 (LLVM only handles a hard-coded list of triples.) created by singpolyma
LLVM simply has a hard-coded list of triples for supported platforms in …
1:22 AM Changeset in ghc [fb93d791]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by David Terei <davidterei@…>
Up supported LLVM version to 3.3. Actual support is in progress but we will accept bugs against these version. LLVM 3.2 seems in good shape at this point anyway.
1:02 AM Ticket #7607 (getSymtabName:unknown known-key unique) created by sheblar
On a freshly updated install of Archlinux x86_64, I ran makepkg -s on the …

Jan 18, 2013:

10:06 PM BugSweep edited by morabbin
Reviewed #693; recently added to milestone 7.8.1, so looks to be in good … (diff)
6:38 PM Ticket #7605 (HscStats.lhs is not used in the build process) closed by igloo
fixed: Thanks for the report; .lhs removed.
6:17 PM Changeset in ghc [2c12b912]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//ghc
5:30 PM Changeset in ghc [2120d4e]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Test Trac #7594
5:30 PM Changeset in testsuite [311f560]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Test Trac #7594
5:23 PM Commentary/Compiler/NewCodeGen edited by simonpj
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5:16 PM Changeset in ghc [858888e]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Remove unused HscStats.lhs; fixes #7605
5:07 PM Changeset in ghc [ea53d9c2]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Document overlapping instances more clearly
4:43 PM Changeset in base [169eb37]data-proxydbcsghc-7.8type-reasoning by Ian Lynagh <ian@…>
num010(ghci) is broken on OS X 32 (#7043)
4:43 PM Changeset in ghc [c0d723ec]wip/T8959wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/orfwip/pattern-synonyms by Ian Lynagh <ian@…>
num010(ghci) is broken on OS X 32 (#7043)
4:42 PM Changeset in directory [24d1444]ghc-7.8 by Ian Lynagh <ian@…>
T4113 is broken in OS X (#7604)
4:15 PM Building/CrossCompiling edited by simonmar
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4:02 PM Building/CrossCompiling edited by simonmar
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2:49 PM Changeset in ghc [611105b7]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Output wibble
2:49 PM Changeset in testsuite [0e5e3b9]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Output wibble
2:34 PM Ticket #4258 (Finish new codegen) closed by simonmar
fixed: The new codegen has been the default for a while now. Closing this to …
2:34 PM Ticket #7192 (Bug in -fregs-graph with -fnew-codegen) closed by simonmar
fixed: We think this is fixed after the patch above.
2:31 PM Changeset in ghc [04abb49]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of darcs.haskell.org:/home/darcs/ghc
2:31 PM Changeset in ghc [e39539d]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Add missing case in eqHsBang; makes rnfail055 pass again
10:10 AM Ticket #7606 (Stride scheduling for Haskell threads with priorities) created by ezyang
Currently, GHC uses a round-robin scheduler for Haskell threads, with some …
9:54 AM Ticket #7605 (HscStats.lhs is not used in the build process) created by jstolarek
The file [[GhcFile(...)]] is not used in the build …
9:46 AM Changeset in ghc [f61fbf39]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
Restore the primitive and vector submodules I accidentally deleted them in 109a1e53287f50103e8a5b592275940b6e3dbb53
9:22 AM Building edited by simonmar
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9:21 AM Building/CrossCompiling edited by simonmar
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9:20 AM Building/CrossCompiling edited by simonmar
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9:17 AM CrossCompilation edited by simonmar
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9:08 AM Building/CrossCompiling edited by simonmar
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9:06 AM Building/CrossCompiling edited by simonmar
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9:01 AM Building/CrossCompiling edited by simonmar
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8:58 AM Building/CrossCompiling edited by simonmar
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8:56 AM Building/CrossCompiling created by simonmar
1:31 AM Changeset in directory [e14d113]ghc-7.6 by Ian Lynagh <ian@…>
T4113 is broken in OS X (#7604)
1:30 AM Ticket #7604 (System.Directory.canonicalizePath "" behaviour differs between platforms) created by igloo
On Linux, System.Directory.canonicalizePath "" gives an exception. On …
1:05 AM Changeset in base [ff6c868]ghc-7.6 by Ian Lynagh <ian@…>
num010(ghci) is broken on OS X 32 (#7043)
12:45 AM Ticket #7603 (Bad magic in static (FFI) object (7.6.1 for x86_64-apple-darwin)) closed by morabbin
invalid: Not a GHC bug; closing as invalid.
12:25 AM Ticket #7603 (Bad magic in static (FFI) object (7.6.1 for x86_64-apple-darwin)) created by morabbin
When spraying HOC (Haskell to Objective-C) …

Jan 17, 2013:

11:39 PM Changeset in ghc [b14ddb2f]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Expose genericRaise; fixes signals004(dyn) no OS X 32
11:22 PM Changeset in ghc [0dc9f1c]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//ghc
9:55 PM Changeset in ghc [571ecdd]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Johan Tibell <johan.tibell@…>
If -msse is specified, pass it to the LLVM backend
9:54 PM Changeset in ghc [56d0328]ghc-7.6th-new-7.6 by Ian Lynagh <ian@…>
Expose genericRaise; fixes signals004(dyn) no OS X 32
9:43 PM Changeset in unix [cd2a071]ghc-7.6 by Ian Lynagh <ian@…>
Fix signals004 on OS X 32
9:10 PM Changeset in ghc [b7189de]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Johan Tibell <johan.tibell@…>
Clean up -msse flag handling We know have a single flag that takes a version number, instead of one flag per SSE version.
8:30 PM Changeset in ghc [0dcccf0]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
Hopefully fix breakage on OS X w/ LLVM Reordering of includes in GC.c broke on OS X because gctKey is declared in Task.h and is needed in the storage manager. This is really the wrong place for it anyway, so I've moved the gctKey pieces to where they should be.
7:29 PM Changeset in testsuite [460ecad]ghc-7.6 by Ian Lynagh <ian@…>
Fix the safeHaskell tests
7:26 PM Changeset in ghc [80263822]ghc-7.6th-new-7.6 by Ian Lynagh <ian@…>
Use pthread_kill on OS X too Fixes signals004(threaded1,threaded2) on OS X 32.
7:25 PM Changeset in unix [ef1604f]ghc-7.6 by Ian Lynagh <ian@…>
Use pthread_kill on OS X too Fixes signals004(threaded1,threaded2) on OS X 32.
7:25 PM Changeset in unix [4eb45c8]ghc-7.6 by Ian Lynagh <ian@…>
Fix some parentheses I assume that this is what was intended.
7:23 PM Changeset in ghc [3f90064]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Use pthread_kill on OS X too Fixes signals004(threaded1,threaded2) on OS X 32.
7:21 PM Changeset in unix [4b07317]ghc-7.8 by Ian Lynagh <ian@…>
Use pthread_kill on OS X too Fixes signals004(threaded1,threaded2) on OS X 32.
7:14 PM Changeset in unix [0b0915a]ghc-7.8 by Ian Lynagh <ian@…>
Fix some parentheses I assume that this is what was intended.
5:25 PM Changeset in ghc [9c1edfa8]ghc-7.6th-new-7.6 by Ian Lynagh <ian@…>
Expose the prototype for getMonotonicNSec Fixes T3807 on OS X 32.
5:10 PM Changeset in ghc [b4e86fa8]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Minor impovement to when we float a let out of a right-hand side: Note [Float when cheap or expandable] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We want to float a let from a let if the residual RHS is a) cheap, such as (\x. blah) b) expandable, such as (f b) if f is CONLIKE But there are - cheap things that are not expandable (eg \x. expensive) - expandable things that are not cheap (eg (f b) where b is CONLIKE) so we must take the 'or' of the two.
5:05 PM Ticket #7602 (Threaded RTS performing badly on recent OS X (10.8?)) created by simonmar
This ticket is to remind us about the following problem: OS X is now using …
4:24 PM Ticket #7599 (timeout does not behave as expected) closed by simonmar
duplicate: threadDelay isn't working properly in GHCi in 7.6.1 on OS X (#7299), I …
4:01 PM Ticket #7601 (Internal error with kind annotation on associated type family) created by dreixel
The following module: […] Makes GHC raise an internal error: […]
3:33 PM Changeset in ghc [fd3fd18]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Ian Lynagh <ian@…>
Expose the prototype for getMonotonicNSec Fixes T3807 on OS X 32.
3:09 PM Changeset in ghc [cb22ebd]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Ian Lynagh <ian@…>
arith005(ghci) is broken on OS X x86 (#7043)
3:09 PM Changeset in testsuite [98fee92]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Ian Lynagh <ian@…>
arith005(ghci) is broken on OS X x86 (#7043)
2:22 PM Changeset in testsuite [85f9f58]ghc-7.6 by Ian Lynagh <ian@…>
arith005(ghci) is broken on OS X x86 (#7043)
1:57 PM Changeset in ghc [81f4cd3e]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/ghc
1:52 PM Changeset in ghc [65446926]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Adjust performance bounds slightly
1:52 PM Changeset in testsuite [52234dfe]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Adjust performance bounds slightly
1:51 PM Changeset in ghc [e34b2bf]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Adjust debug output for different syntax of strictness annotations
1:51 PM Changeset in testsuite [c85582d]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Adjust debug output for different syntax of strictness annotations
1:51 PM Changeset in ghc [d3bfd67]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Fix simplrun010 test Compiler now (correctly) does not eta reduce an infinite loop, so I had to adjust the test a bit.
1:51 PM Changeset in testsuite [f937604]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Fix simplrun010 test Compiler now (correctly) does not eta reduce an infinite loop, so I had to adjust the test a bit.
12:39 PM Changeset in ghc [109a1e5]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
Tidy up cross-compiling We have two cases: 1. building a cross-compiler 2. compiling GHC to run on a foreign platform These two are done with almost the same setup: (1) is the stage 1 compiler, and (2) is the stage 2 compiler, when CrossCompiling=YES. The only difference between (1) and (2) is that you if you set up the build for (1), then it stops before stage 2 and you can 'make install' to install stage 1. Unfortunately, (2) didn't work, and the build system code needed some tidying up. Change to the way the build is set up: Before ------ To build a cross-compiler: ./configure --target=<..> To compile a foreign GHC: ./configure --host=<..> --target=<..> Now --- To build a cross-compiler: ./configure --target=<..> And set "Stage1Only=YES" in mk/build.mk To compile a foreign GHC: ./configure --target=<..>
10:55 AM Changeset in ghc [057384f]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/ghc
10:55 AM Changeset in ghc [91b44bc5]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
A simple improvement to CSE See Note [CSE for case expressions]. I don't think this is a big deal, but it's nice, and it's easy.
10:54 AM Changeset in ghc [0831a12]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Major patch to implement the new Demand Analyser This patch is the result of Ilya Sergey's internship at MSR. It constitutes a thorough overhaul and simplification of the demand analyser. It makes a solid foundation on which we can now build. Main changes are * Instead of having one combined type for Demand, a Demand is now a pair (JointDmd) of - a StrDmd and - an AbsDmd. This allows strictness and absence to be though about quite orthogonally, and greatly reduces brain melt-down. * Similarly in the DmdResult type, it's a pair of - a PureResult (indicating only divergence/non-divergence) - a CPRResult (which deals only with the CPR property * In IdInfo, the strictnessInfo field contains a StrictSig, not a Maybe StrictSig demandInfo field contains a Demand, not a Maybe Demand We don't need Nothing (to indicate no strictness/demand info) any more; topSig/topDmd will do. * Remove "boxity" analysis entirely. This was an attempt to avoid "reboxing", but it added complexity, is extremely ad-hoc, and makes very little difference in practice. * Remove the "unboxing strategy" computation. This was an an attempt to ensure that a worker didn't get zillions of arguments by unboxing big tuples. But in fact removing it DRAMATICALLY reduces allocation in an inner loop of the I/O library (where the threshold argument-count had been set just too low). It's exceptional to have a zillion arguments and I don't think it's worth the complexity, especially since it turned out to have a serious performance hit. * Remove quite a bit of ad-hoc cruft * Move worthSplittingFun, worthSplittingThunk from WorkWrap to Demand. This allows JointDmd to be fully abstract, examined only inside Demand. Everything else really follows from these changes. All of this is really just refactoring, so we don't expect big performance changes, but acutally the numbers look quite good. Here is a full nofib run with some highlights identified: Program Size Allocs Runtime Elapsed TotalMem -------------------------------------------------------------------------------- expert -2.6% -15.5% 0.00 0.00 +0.0% fluid -2.4% -7.1% 0.01 0.01 +0.0% gg -2.5% -28.9% 0.02 0.02 -33.3% integrate -2.6% +3.2% +2.6% +2.6% +0.0% mandel2 -2.6% +4.2% 0.01 0.01 +0.0% nucleic2 -2.0% -16.3% 0.11 0.11 +0.0% para -2.6% -20.0% -11.8% -11.7% +0.0% parser -2.5% -17.9% 0.05 0.05 +0.0% prolog -2.6% -13.0% 0.00 0.00 +0.0% puzzle -2.6% +2.2% +0.8% +0.8% +0.0% sorting -2.6% -35.9% 0.00 0.00 +0.0% treejoin -2.6% -52.2% -9.8% -9.9% +0.0% -------------------------------------------------------------------------------- Min -2.7% -52.2% -11.8% -11.7% -33.3% Max -1.8% +4.2% +10.5% +10.5% +7.7% Geometric Mean -2.5% -2.8% -0.4% -0.5% -0.4% Things to note * Binary sizes are smaller. I don't know why, but it's good. * Allocation is sometiemes a *lot* smaller. I believe that all the big numbers (I checked treejoin, gg, sorting) arise from one place, namely a function GHC.IO.Encoding.UTF8.utf8_decode, which is strict in two Buffers both of which have several arugments. Not w/w'ing both arguments (which is what we did before) has a big effect. So the big win in actually somewhat accidental, gained by removing the "unboxing strategy" code. * A couple of benchmarks allocate slightly more. This turns out to be due to reboxing (integrate). But the biggest increase is mandel2, and *that* turned out also to be a somewhat accidental loss of CSE, and pointed the way to doing better CSE: see Trac #7596. * Runtimes are never very reliable, but seem to improve very slightly. All in all, a good piece of work. Thank you Ilya!
10:29 AM Commentary/Compiler/Demand edited by simonpj
(diff)
10:04 AM Changeset in ghc [520dc1d2]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
Rearrange includes to avoid a clash on ARM/Linux
10:04 AM Changeset in ghc [900e7d2]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
make it safe to include this after GCTDecl.h
9:17 AM Changeset in ghc [94a1cf19]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by David Terei <davidterei@…>
update gitignore
9:17 AM Changeset in testsuite [826c4f6]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by David Terei <davidterei@…>
update gitignore
9:17 AM Status/SLPJ-Tickets edited by simonpj
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9:09 AM Commentary/MigratingOldCommentary edited by jstolarek
(diff)
8:40 AM Ticket #7600 (cgrun044 failing with LLVM backend) closed by dterei
fixed
8:40 AM Changeset in ghc [18fd170]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by David Terei <davidterei@…>
Test for #7600.
8:40 AM Changeset in testsuite [5aae346]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by David Terei <davidterei@…>
Test for #7600.
8:32 AM Changeset in ghc [aef38d1]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by David Terei <davidterei@…>
Output LLVM version in use at -V2.
8:30 AM Changeset in ghc [25f8d040]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by David Terei <davidterei@…>
Fix floating point constants in LLVM backend (#7600).
6:05 AM Ticket #7573 (Testsuite should easily be able to compile .cmm files.) closed by thoughtpolice
fixed: Closed by […] I also updated the wiki page about adding tests: …
6:02 AM Changeset in ghc [d2366457]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Austin Seipp <mad.one@…>
Add better support for .cmm test files. Fixes Trac #7573. Signed-off-by: Austin Seipp <mad.one@gmail.com>
6:02 AM Changeset in testsuite [8dbd01a]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Austin Seipp <mad.one@…>
Add better support for .cmm test files. Fixes Trac #7573. Signed-off-by: Austin Seipp <mad.one@gmail.com>
5:50 AM Ticket #7579 (Command line option to suppress LLVM version warning) closed by thoughtpolice
fixed
5:50 AM Ticket #7572 (mk/build.mk does not let you build 'quick-llvm' style) closed by thoughtpolice
fixed
5:47 AM Changeset in ghc [5cca0b4]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Austin Seipp <mad.one@…>
Add -f[no-]warn-unsupported-llvm-version. Closes Trac #7579. This controls whether or not the compiler warns if we're using an LLVM version that's too old or too new. It's mostly useful when building the compiler knowingly with an unsupported version, so you don't get a lot of warnings in the build process. There's no documentation for this since it's a flag only a few developers would care about anyway. Signed-off-by: Austin Seipp <mad.one@gmail.com>
5:44 AM Changeset in ghc [b05531b]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Austin Seipp <mad.one@…>
Add a 'quick-llvm' build mode to mk/build.mk. Closes Trac #7572. Signed-off-by: Austin Seipp <mad.one@gmail.com>
4:06 AM Ticket #7600 (cgrun044 failing with LLVM backend) created by dterei
test case cgrun044 fails currently with the LLVM backend. I believe this …
1:33 AM Changeset in testsuite [7467ed9]ghc-7.6 by Ian Lynagh <ian@…>
Add a test for #7299
1:33 AM Changeset in base [f1a7ffe]ghc-7.6 by Ian Lynagh <ian@…>
Use the RTS getMonotonicTime to implement getMonotonicNSec; fixes #7299 I'm not entirely sure where the segfault was coming from, but it was almost certainly related to there being 2 copies of the base package around, and the interpreted one not having its timer code initialised.

Jan 16, 2013:

11:21 PM Ticket #7599 (timeout does not behave as expected) created by ique
In trying to debug an error I found using the MongoDB package (it was …
9:49 PM Changeset in ghc [0aae1e17]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Edward Z. Yang <ezyang@…>
Better abstraction over run queues. This adds some new functions: peekRunQueue, promoteInRunQueue, singletonRunQueue and truncateRunQueue which help abstract away manual linked list manipulation, making it easier to swap in a new queue implementation. Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
9:46 PM Ticket #7598 (ghc-stage1 generates wrong assembler on StgCmmPrim (operand out of range)) created by kgardas
Hello, an attempt to compile today GHC HEAD on linux powerpc fails with …
8:13 PM Ticket #7597 (plugins01 fails if it has been run previously (doesn't force recompile)) created by ezyang
Just to make sure I don't forget about this.
6:04 PM Status/SLPJ-Tickets edited by simonpj
(diff)
5:27 PM Changeset in ghc [037617a]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
5:27 PM Changeset in testsuite [5a1ee55]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
5:13 PM Changeset in nofib [4b19571]ghc-7.8shake by Simon Peyton Jones <simonpj@…>
Add notes about nofib
4:49 PM Changeset in ghc [df806942]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//testsuite
4:49 PM Changeset in testsuite [245e63d8]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//testsuite
4:47 PM Changeset in base [2e03b94]data-proxydbcsghc-7.8type-reasoning by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//packages/base
4:47 PM Changeset in ghc [946a2d1f]wip/T8959wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/orfwip/pattern-synonyms by Ian Lynagh <ian@…>
Merge branch 'master' of darcs.haskell.org:/srv/darcs//packages/base
4:40 PM Changeset in ghc [657e24b7]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Ian Lynagh <ian@…>
Add a test for #7299
4:40 PM Changeset in testsuite [38f21bb]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Ian Lynagh <ian@…>
Add a test for #7299
4:35 PM Changeset in base [8a3399d]data-proxydbcsghc-7.8type-reasoning by Ian Lynagh <ian@…>
Use the RTS getMonotonicTime to implement getMonotonicNSec; fixes #7299 I'm not entirely sure where the segfault was coming from, but it was almost certainly related to there being 2 copies of the base package around, and the interpreted one not having its timer code initialised.
4:35 PM Changeset in ghc [bd0faf74]wip/T8959wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/orfwip/pattern-synonyms by Ian Lynagh <ian@…>
Use the RTS getMonotonicTime to implement getMonotonicNSec; fixes #7299 I'm not entirely sure where the segfault was coming from, but it was almost certainly related to there being 2 copies of the base package around, and the interpreted one not having its timer code initialised.
4:30 PM Ticket #7596 (Opportunity to improve CSE) created by simonpj
In nofib/spectral/mandel2, the function check_perim calls …
4:13 PM Building/RunningTests/Details edited by jstolarek
(diff)
3:39 PM Changeset in ghc [8f731f2b]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/ghc
3:34 PM Changeset in ghc [08e69b5]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
3:34 PM Changeset in testsuite [13b32c0]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
3:04 PM Ticket #7569 (Does not correctly detect float/double Haskell types when cross-compiling) closed by simonmar
fixed: […]
2:41 PM Ticket #6086 (Cross compilation fails using system linker for other architecture ...) closed by simonmar
fixed
2:18 PM Changeset in ghc [b06c1eb]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
When cross-compiling, pass --host to package configure scripts Otherwise the configure script for e.g. base doesn't know that we're cross-compiling, and fails trying to run an executable compiled by the C cross-compiler.
2:15 PM Changeset in ghc [f77291d6]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Marlow <marlowsd@…>
Pass --with-ld=$(LD) to ghc-cabal when configuring packages (#6086)
1:58 PM Ticket #7594 (GHCi becomes confused about IO type) closed by simonpj
worksforme: Hmm. Absolutely right, and this happens for 7.6.2 too. However with HEAD …
1:50 PM Changeset in base [c726559]data-proxydbcsghc-7.8type-reasoning by Simon Marlow <marlowsd@…>
Possible fix for detecting Float/Double
1:50 PM Changeset in ghc [171f6386]wip/T8959wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/orfwip/pattern-synonyms by Simon Marlow <marlowsd@…>
Possible fix for detecting Float/Double
12:04 PM Ticket #7595 (Static flags code needs cleanup) created by jstolarek
While reading through the source code I noticed that code responsible for …
11:53 AM Commentary/Pipeline edited by jstolarek
(diff)
11:41 AM Ticket #7594 (GHCi becomes confused about IO type) created by Khudyakov
[…] In the interactive mode it's possible to confuse GHCi about IO …
9:43 AM Ticket #7537 ([PATCH] Incorrect Haskell type for ino_t on MacOS X 10.5) closed by simonmar
invalid: Great, thanks for following this up.
8:23 AM Commentary/Compiler/NewCodeGen edited by simonpj
(diff)
6:05 AM Ticket #7593 (Unable to print exceptions of unicode identifiers) created by dagit
I suspect this is windows specific but I'm not certain (I couldn't …
5:10 AM Ticket #7592 (Building the latest master branch on FreeBSD 9.1 fails) created by kazu-yamamoto
The following sequence fails on FreeBSD 9.1: […] If I type "gmake …
4:06 AM Ticket #7585 (Core lint failure when optimizing coercions in branched axioms) closed by goldfire
fixed
2:34 AM Changeset in ghc [a2e27e1]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Richard Eisenberg <eir@…>
Add new test case T7585.
2:34 AM Changeset in testsuite [3c0c3d9]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Richard Eisenberg <eir@…>
Add new test case T7585.
2:34 AM Changeset in ghc [a6ab0a40]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Richard Eisenberg <eir@…>
Fix Trac #7585. The coercion optimizer was optimizing coercions inside of branched axiom applications, sometimes invalidating the branch choice within the axiom application. Now, we check to make sure we are not invalidating this invariant before proceeding with the optimization.
1:37 AM Ticket #7591 (CodeGen.Platform.hs not including ghcautoconf.h as it should, breaks ARMv5 ...) created by StephenBlackheath
MachRegs.h requires ghcautoconf.h to be included before it, because, in …
1:31 AM Ticket #7590 (LLVM backend bootstrap support) created by dterei
The change to the new-code-generator seems to have broken the LLVM …
1:26 AM Ticket #7589 (LLVM 3.2 Support) created by dterei
LLVM 3.2 is out as of mid December. We need to update the backend to …

Jan 15, 2013:

9:03 PM Ticket #7588 (GHC HEAD built with LLVM on Mac OS X miscompiles RTS: SIGSEGV in ...) created by thoughtpolice
After fixing #7571 and #7580, with those two patches, I now get a working …
6:22 PM Ticket #7587 (Kind variables are not renamed) created by monoidal
[…] should be k -> l -> *. The 'k's are allowed to be different, …
5:35 PM Ticket #7584 (OperationalError: database is locked) closed by igloo
invalid: Thanks for the report. I'm not sure what URL you were looking at, so I …
4:47 PM Ticket #7586 (:kind command cannot show kind of type synonyms) created by augustss
The following illustrates the problem: […] Undoubtedly, T has a kind, …
3:57 PM Ticket #7585 (Core lint failure when optimizing coercions in branched axioms) created by goldfire
The attached code causes the failure. Core Lint correctly checks branched …
2:57 PM Changeset in ghc [440a9a5]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Tiny refactoring, really just white space
2:57 PM Changeset in ghc [ecddaca]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Tidy up FunDeps.oclose It turned out that FunDeps.oclose was unused. So * Remove oclose * Rename oclose1 to oclose * Move growThetaTyVars to FunDeps (from TcMType), because the comments treat it with oclose * Move quantifyPred to TcSimplify (from TcMType), because it seemed orphaned
2:54 PM Changeset in ghc [29054b0]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
White space only
2:53 PM Changeset in ghc [053b2115]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Make tc226 have -O, so that the unboxing stuff happens
2:53 PM Changeset in testsuite [a0acdf60]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Make tc226 have -O, so that the unboxing stuff happens
2:52 PM Changeset in ghc [152e703]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
When doing UNPACK pragmas, be careful to only unpack *data* types not newtypes This was breaking tc226, following UNPACK-pragma reorg
2:42 PM Changeset in ghc [bb79e71]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Fix test by adding an extra fundep to make the (HasSingleton (Maybe a) mp) instance legal
2:42 PM Changeset in testsuite [56cd7ad]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Fix test by adding an extra fundep to make the (HasSingleton (Maybe a) mp) instance legal
2:37 PM Changeset in ghc [292f99c]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Fix Test by adding a fundep to make the (Concete a b) instance legal
2:37 PM Changeset in testsuite [ca5fbc2]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Fix Test by adding a fundep to make the (Concete a b) instance legal
2:17 PM Changeset in ghc [9c64c3f]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Fix test by adding a fundep on class A, which makes the B instance legal again
2:17 PM Changeset in testsuite [ad669f1]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Fix test by adding a fundep on class A, which makes the B instance legal again
2:14 PM Changeset in ghc [fa0397f]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Fix test by removing unnessary (and bogus) fundep
2:14 PM Changeset in testsuite [a7a8923]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Fix test by removing unnessary (and bogus) fundep
1:55 PM Commentary/CommandLineArgs edited by jstolarek
(diff)
1:54 PM Commentary/Compiler/CommandLineArgs created by jstolarek
1:54 PM Commentary/Compiler edited by jstolarek
(diff)
1:52 PM Commentary/CommandLineArgs created by jstolarek
1:46 PM Commentary/Compiler edited by jstolarek
(diff)
1:12 PM Changeset in base [d642155]data-proxydbcsghc-7.8type-reasoning by Jose Pedro Magalhaes <jpm@…>
Add Generic instances to GHC.Generics representation types
1:12 PM Changeset in ghc [6c0743c4]wip/T8959wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/orfwip/pattern-synonyms by Jose Pedro Magalhaes <jpm@…>
Add Generic instances to GHC.Generics representation types
12:06 PM Ticket #7562 (Parse error with {-# UNPACK #-} Int) closed by simonpj
fixed: Good idea, thanks.
11:20 AM NewtypeWrappers edited by simonpj
(diff)
11:18 AM Ticket #7583 (IO reordering) closed by monoidal
invalid: This is because GHC uses line buffering by default, while GHCi disables …
11:12 AM NewtypeWrappers edited by simonpj
(diff)
11:00 AM Ticket #7584 (OperationalError: database is locked) created by Heimdell
==== How to Reproduce ==== While doing a GET operation on /report/8, …
10:57 AM Ticket #7583 (IO reordering) created by Heimdell
I have a simple test program: […] In ghci, it writes "> " before …
10:50 AM Ticket #7582 (Created thunk gets immediately evaluated) closed by simonpj
invalid: Yes, consider (lookup undefined seq True). In your original program …
10:15 AM ReportABug edited by monoidal
frequent bugs (diff)
8:17 AM Ticket #7581 (ghc crashed on trying compiling a file generated by Alex) closed by simonpj
duplicate: Thanks. This is another example of GHC most oft-reported bug (fixed some …
5:31 AM Ticket #7582 (Created thunk gets immediately evaluated) created by tibbe
The following function, taken from the unordered-containers package, is …
2:04 AM Ticket #7581 (ghc crashed on trying compiling a file generated by Alex) created by guest
C:\Documents and Settings\bcyrille\My Documents\Hskl>ghc M90.hs [1 of 1] …

Jan 14, 2013:

6:09 PM NewtypeWrappers edited by simonpj
(diff)
6:07 PM Changeset in ghc [def97b8]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Iavor S. Diatchki <iavor.diatchki@…>
Fix up comment: I was just wrong previously, the original GHC comment on `oclose` is correct.
6:06 PM NewtypeWrappers created by simonpj
5:46 PM Ticket #7578 (Instance selection regression from 7.4 to 7.6) closed by simonpj
invalid: Currently this is by-design. What is happening is this. At the local …
4:48 PM Changeset in ghc [b4ebf622]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
4:48 PM Changeset in testsuite [e063557]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/testsuite
4:46 PM Changeset in ghc [82f81d12]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Merge branch 'master' of http://darcs.haskell.org/ghc
4:45 PM Changeset in ghc [deec5b74]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Simon Peyton Jones <simonpj@…>
Be willing to parse {-# UNPACK #-} without '!' This change gives a more helpful error message when the user says data T = MkT {-# UNPACK #-} Int which should have a strictness '!' as well. Rather than just a parse error, we get T7562.hs:3:14: Warning: UNPACK pragma lacks '!' on the first argument of `MkT' Fixes Trac #7562
6:41 AM Ticket #7580 (Building PrimOps.cmm on OS X with LLVM 3.2 fails) created by thoughtpolice
Using LLVM 3.2 (release,) or LLVM 3.3svn, on my Mac OS X 10.8 machine, the …
6:25 AM Ticket #7579 (Command line option to suppress LLVM version warning) created by thoughtpolice
When developing I'm sometimes testing the LLVM backend and often it's with …
2:37 AM Ticket #1241 (Functional dependency Coverage Condition is lifted, and should not be) closed by diatchki
fixed
2:34 AM Changeset in ghc [12f3a53e]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Iavor S. Diatchki <iavor.diatchki@…>
Fixup comment: typos + I had the generalization rule backwards.
12:31 AM Changeset in ghc [f5a5229]ghc-7.8wip/T8545-ghc-7.8wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/ermsbwip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compat by Iavor S. Diatchki <iavor.diatchki@…>
Add a missing FD on `Add`, otherwise the test is (correctly) rejected. The reason is the we don't automatically inherit the FDs of super-classes.
12:31 AM Changeset in testsuite [384f47e]atomicsdata-kind-syntaxoverlapping-tyfamsth-newtype-natstype-nats-simplewip/nested-cprwip/pattern-synonymswip/th-new by Iavor S. Diatchki <iavor.diatchki@…>
Add a missing FD on `Add`, otherwise the test is (correctly) rejected. The reason is the we don't automatically inherit the FDs of super-classes.
12:29 AM Changeset in ghc [fe61599]coercibledata-kind-syntaxghc-7.8ghc-lwc2late-lam-liftwip/T7704wip/T8545-ghc-7.8wip/T8592wip/T8776wip/T8959wip/T8995-level-generalisationwip/T9023wip/T9136wip/ampwip/cbv-conv-thunkwip/common-contextwip/ermsbwip/exprAritywip/ext-solverwip/generics-propeqwip/nested-cprwip/orfwip/pattern-synonymswip/recurs-compatwip/simdwip/th-new by Iavor S. Diatchki <iavor.diatchki@…>
Use a version of the coverage condition even with UndecidableInstances. This fixes bug #1241 and #2247. When UndecidableInstances are on, we use the "Liberal Coverage Condition", which is what GHC used to do in the past. This is the gist of the check: class C a b | a -> b instance theta => C t1 t2 we check that `fvs t2` is a subset of `fd-closure(theta,fvs t1)`. This is strictly more general than the coverage condition, while it still guarantees consistency with the FDs of the class. This check is completely orthogonal to termination (it by no means guarantees it). I am not sure of the role of the "coverage condition" in termination--- the comments suggest that it is important. This is why, for the moment, we only use this check when UndecidableInstances are on.
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