ghc-hetmet.git
18 years agofilter the messages generated by gcc
Simon Marlow [Tue, 28 Feb 2006 15:31:34 +0000 (15:31 +0000)]
filter the messages generated by gcc

Eliminate things like "warning: call-clobbered register used as global
register variable", which is an non-suppressible warning from gcc.

18 years agoAllow C argument regs to be used as global regs (R1, R2, etc.)
Simon Marlow [Tue, 28 Feb 2006 15:29:42 +0000 (15:29 +0000)]
Allow C argument regs to be used as global regs (R1, R2, etc.)

The problem here was that we generated C calls with expressions
involving R1 etc. as parameters.  When some of the R registers are
also C argument registers, both GCC and the native code generator
generate incorrect code.  The hacky workaround is to assign
problematic arguments to temporaries first; fortunately this works
with both GCC and the NCG, but we have to be careful not to undo this
with later optimisations (see changes to CmmOpt).

18 years agopass arguments to unknown function calls in registers
Simon Marlow [Tue, 28 Feb 2006 15:25:24 +0000 (15:25 +0000)]
pass arguments to unknown function calls in registers

We now have more stg_ap entry points: stg_ap_*_fast, which take
arguments in registers according to the platform calling convention.
This is faster if the function being called is evaluated and has the
right arity, which is the common case (see the eval/apply paper for
measurements).

We still need the stg_ap_*_info entry points for stack-based
application, such as an overflows when a function is applied to too
many argumnets.  The stg_ap_*_fast functions actually just check for
an evaluated function, and if they don't find one, push the args on
the stack and invoke stg_ap_*_info.  (this might be slightly slower in
some cases, but not the common case).

18 years agofix live register annotations on foreign calls
Simon Marlow [Tue, 28 Feb 2006 15:18:15 +0000 (15:18 +0000)]
fix live register annotations on foreign calls

fix one incorrect case, and made several more accurate

18 years ago Simplify the IdInfo before any RHSs
simonpj@microsoft.com [Tue, 28 Feb 2006 13:31:57 +0000 (13:31 +0000)]
Simplify the IdInfo before any RHSs
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Simplfy (i.e. substitute) the IdInfo of a recursive group of Ids
before looking at the RHSs of *any* of them.  That way, the rules
are available throughout the letrec, which means we don't have to
be careful about function to put first.

Before, we just simplified the IdInfo of f before looking at f's RHS,
but that's not so good when f and g both have RULES, and both rules
mention the other.

This change makes things simpler, but shouldn't change performance.

18 years agoAdd floating-point symbols to the list
simonpj@microsoft.com [Tue, 28 Feb 2006 11:45:02 +0000 (11:45 +0000)]
Add floating-point symbols to the list

18 years agoslightly better dependencies for GenApply.hs
Simon Marlow [Mon, 27 Feb 2006 15:38:28 +0000 (15:38 +0000)]
slightly better dependencies for GenApply.hs

18 years agox86_64: include .type and .size directives in the output, for valgrind
Simon Marlow [Mon, 27 Feb 2006 15:28:22 +0000 (15:28 +0000)]
x86_64: include .type and .size directives in the output, for valgrind

18 years agoThe initStablePtrTable should be called before ACQUIRE_LOCK(&stable_mutex)
kr.angelov@gmail.com [Wed, 22 Feb 2006 20:29:12 +0000 (20:29 +0000)]
The initStablePtrTable should be called before ACQUIRE_LOCK(&stable_mutex)

18 years agosupport LOCK_DEBUG for Windows
kr.angelov@gmail.com [Wed, 22 Feb 2006 20:17:21 +0000 (20:17 +0000)]
support LOCK_DEBUG for Windows

18 years agommap() errors on Darwin: use errorBelch/exit instead of barf()
Simon Marlow [Mon, 27 Feb 2006 11:11:03 +0000 (11:11 +0000)]
mmap() errors on Darwin: use errorBelch/exit instead of barf()

The most likely cause is out-of-memory, not an RTS error.

18 years agoremove empty .SECONDARY target
Simon Marlow [Mon, 27 Feb 2006 10:59:39 +0000 (10:59 +0000)]
remove empty .SECONDARY target

This works around a problem with recent versions of GNU make that take
a long time when all targets are declared intermediate with
.SECONDARY.  See

  https://savannah.gnu.org/bugs/?func=detailitem&item_id=15584

for discussion of the GNU make issue.

18 years agothese tables have four columns, not three
claus.reinke@talk21.com [Sat, 25 Feb 2006 21:59:45 +0000 (21:59 +0000)]
these tables have four columns, not three

18 years agoRemove comment about imports and exports not being in the renamer result.
Lemmih [Sun, 26 Feb 2006 12:04:07 +0000 (12:04 +0000)]
Remove comment about imports and exports not being in the renamer result.

18 years agoNCG: fix mkRegRegMoveInstr for x86-64
wolfgang.thaller@gmx.net [Sat, 25 Feb 2006 22:59:20 +0000 (22:59 +0000)]
NCG: fix mkRegRegMoveInstr for x86-64

18 years agoNCG: Fix Typo in Register Allocator Loop Patch
wolfgang.thaller@gmx.net [Sat, 25 Feb 2006 03:39:54 +0000 (03:39 +0000)]
NCG: Fix Typo in Register Allocator Loop Patch

Fix previous patch "NCG: Handle loops in register allocator"
Of course, I broke it when correcting a style problem just before committing.

18 years agoNCG: Handle loops in register allocator
wolfgang.thaller@gmx.net [Sat, 25 Feb 2006 03:14:34 +0000 (03:14 +0000)]
NCG: Handle loops in register allocator

Fill in the missing parts in the register allocator so that it can
handle loops.

*) The register allocator now runs in the UniqSuppy monad, as it needs
   to be able to generate unique labels for fixup code blocks.

*) A few functions have been added to RegAllocInfo:
mkRegRegMoveInstr -- generates a good old move instruction
mkBranchInstr     -- used to be MachCodeGen.genBranch
patchJump         -- Change the destination of a jump

*) The register allocator now makes sure that only one spill slot is used
   for each temporary, even if it is spilled and reloaded several times.
   This obviates the need for memory-to-memory moves in fixup code.

LIMITATIONS:

*) The case where the fixup code needs to cyclically permute a group of
   registers is currently unhandled. This will need more work once we come
   accross code where this actually happens.

*) Register allocation for code with loop is probably very inefficient
   (both at compile-time and at run-time).

*) We still cannot compile the RTS via NCG, for various other reasons.

18 years agoOops, I got a little trigger happy while trimming package.conf.in.
Lemmih [Fri, 24 Feb 2006 22:37:04 +0000 (22:37 +0000)]
Oops, I got a little trigger happy while trimming package.conf.in.

18 years agoPrettify parts of RnNames. No change of functionality.
Lemmih [Fri, 24 Feb 2006 21:50:20 +0000 (21:50 +0000)]
Prettify parts of RnNames. No change of functionality.

18 years agoRemove duplicate code from RnNames.
Lemmih [Fri, 24 Feb 2006 21:27:48 +0000 (21:27 +0000)]
Remove duplicate code from RnNames.

18 years agoRemove non-existing modules from package.conf.in
Lemmih [Fri, 24 Feb 2006 20:37:27 +0000 (20:37 +0000)]
Remove non-existing modules from package.conf.in

18 years agoRemove some unused bindings frm RnNames.
Lemmih [Fri, 24 Feb 2006 16:54:09 +0000 (16:54 +0000)]
Remove some unused bindings frm RnNames.

18 years agoRather large refactoring of RnNames.
Lemmih [Fri, 24 Feb 2006 15:47:04 +0000 (15:47 +0000)]
Rather large refactoring of RnNames.

This restructoring makes the renamed export and import lists
available in IDE mode.

18 years agoadd file to go with "extract some of the generic..." patch
Simon Marlow [Fri, 24 Feb 2006 14:41:26 +0000 (14:41 +0000)]
add file to go with "extract some of the generic..." patch

18 years agooops, undo accidental addition of package-time settings
Simon Marlow [Fri, 24 Feb 2006 14:30:51 +0000 (14:30 +0000)]
oops, undo accidental addition of package-time settings

18 years agoturn off a trace
Simon Marlow [Fri, 24 Feb 2006 12:46:08 +0000 (12:46 +0000)]
turn off a trace

18 years agoadd instance Outputable CLabel
Simon Marlow [Fri, 24 Feb 2006 12:43:49 +0000 (12:43 +0000)]
add instance Outputable CLabel

18 years ago-O2 implies -optc-O2 now
Simon Marlow [Fri, 24 Feb 2006 12:40:33 +0000 (12:40 +0000)]
-O2 implies -optc-O2 now

18 years agoextract some of the generic C-- optimisations from the NCG
Simon Marlow [Fri, 24 Feb 2006 11:17:53 +0000 (11:17 +0000)]
extract some of the generic C-- optimisations from the NCG

18 years agolag/drag/void: add an extra assertion, and some commentary
Simon Marlow [Thu, 23 Feb 2006 15:51:20 +0000 (15:51 +0000)]
lag/drag/void: add an extra assertion, and some commentary

18 years agolag/drag/void profiling fix
Simon Marlow [Thu, 23 Feb 2006 15:50:46 +0000 (15:50 +0000)]
lag/drag/void profiling fix

We were searching the wrong part of the heap for dead objects, this
was broken by recent changes to the step structure: from-space is now
in step->old_blocks, not step->blocks.  Fortunately some assertions in
ProfHeap picked up the problem.

18 years agoadd (trivial) support for STM objects in lag/drag/void profiling
Simon Marlow [Thu, 23 Feb 2006 15:48:59 +0000 (15:48 +0000)]
add (trivial) support for STM objects in lag/drag/void profiling

18 years agobugfix for LDV profiling on 64-bit platforms
Simon Marlow [Thu, 23 Feb 2006 15:09:04 +0000 (15:09 +0000)]
bugfix for LDV profiling on 64-bit platforms

There was an integer overflow in the definition of LDV_RECORD_CREATE
when StgWord is 64 bits.

18 years agowarning fix
Simon Marlow [Thu, 23 Feb 2006 14:45:37 +0000 (14:45 +0000)]
warning fix

18 years agofurther fix for floating point primitives
Simon Marlow [Thu, 23 Feb 2006 14:30:13 +0000 (14:30 +0000)]
further fix for floating point primitives

18 years agoComment wibbles
simonpj@microsoft.com [Thu, 23 Feb 2006 14:21:01 +0000 (14:21 +0000)]
Comment wibbles

18 years agoWibbles to instance validity checking
simonpj@microsoft.com [Thu, 23 Feb 2006 13:41:54 +0000 (13:41 +0000)]
Wibbles to instance validity checking

18 years agoFix comment
simonpj@microsoft.com [Thu, 23 Feb 2006 13:01:04 +0000 (13:01 +0000)]
Fix comment

18 years agoImprove error reporting for type-improvement errors
simonpj@microsoft.com [Thu, 23 Feb 2006 13:00:29 +0000 (13:00 +0000)]
Improve error reporting for type-improvement errors

18 years agoReject polytypes in instance declarations (for now anyway)
simonpj@microsoft.com [Thu, 23 Feb 2006 12:59:58 +0000 (12:59 +0000)]
Reject polytypes in instance declarations (for now anyway)

18 years agoRemove duplicate comment
simonpj@microsoft.com [Fri, 10 Feb 2006 10:40:28 +0000 (10:40 +0000)]
Remove duplicate comment

18 years agoAdd renamed fixities to HsGroup.
Lemmih [Wed, 22 Feb 2006 17:36:48 +0000 (17:36 +0000)]
Add renamed fixities to HsGroup.

18 years agooops, initialize atomic_modify_mutvar_mutex
Simon Marlow [Wed, 22 Feb 2006 16:38:27 +0000 (16:38 +0000)]
oops, initialize atomic_modify_mutvar_mutex

18 years agocheck black holes before doing GC in scheduleDoHeapProfile()
Simon Marlow [Wed, 22 Feb 2006 16:07:33 +0000 (16:07 +0000)]
check black holes before doing GC in scheduleDoHeapProfile()

fixes #687, see comment for details.

18 years agofix for ASSIGN_BaseReg() in the unregisterised way
Simon Marlow [Wed, 22 Feb 2006 14:18:36 +0000 (14:18 +0000)]
fix for ASSIGN_BaseReg() in the unregisterised way

18 years agofloating-point fix for x86_64
Simon Marlow [Wed, 22 Feb 2006 14:07:19 +0000 (14:07 +0000)]
floating-point fix for x86_64

For 32-bit float primtives like sinFloat#, we currently call the
double versions of the C library functions (sin(), cos() etc.).  It
seems more correct to call the float versions (sinf(), cosf() etc.).
This makes a difference on x86_64, I'm not entirely sure why, but this
way at least generates more consistent results and avoids extra
promotion/demotion instructions when calling these primitives.

18 years agofix a deadlock in atomicModifyMutVar#
Simon Marlow [Tue, 21 Feb 2006 16:37:11 +0000 (16:37 +0000)]
fix a deadlock in atomicModifyMutVar#

atomicModifyMutVar# was re-using the storage manager mutex (sm_mutex)
to get its atomicity guarantee in SMP mode. But recently the addition
of a call to dirty_MUT_VAR() to implement the read barrier lead to a
rare deadlock case, because dirty_MUT_VAR() very occasionally needs to
allocate a new block to chain on the mutable list, which requires
sm_mutex.

18 years agowarning fix
Simon Marlow [Tue, 21 Feb 2006 16:33:08 +0000 (16:33 +0000)]
warning fix

18 years agoMention the 'Encoding' module in package.conf.in
Lemmih [Tue, 21 Feb 2006 10:51:47 +0000 (10:51 +0000)]
Mention the 'Encoding' module in package.conf.in

18 years agoLoosen the rules for instance declarations (Part 3)
Ross Paterson [Mon, 13 Feb 2006 16:10:44 +0000 (16:10 +0000)]
Loosen the rules for instance declarations (Part 3)

Relax the restrictions on derived instances in the same way, so we
can write

data MinHeap h a = H a (h a) deriving (Show)

18 years agoIf we don't have libreadline then we need some dummy definition for complete* functions.
kr.angelov@gmail.com [Sun, 12 Feb 2006 09:50:19 +0000 (09:50 +0000)]
If we don't have libreadline then we need some dummy definition for complete* functions.

18 years agoSMP bugfix: reload capability from task->cap after scheduleDoGC
wolfgang.thaller@gmx.net [Sun, 12 Feb 2006 03:47:36 +0000 (03:47 +0000)]
SMP bugfix: reload capability from task->cap after scheduleDoGC

18 years agoSMP support (xchg(), cas() and mb()) for PowerPC
wolfgang.thaller@gmx.net [Sun, 12 Feb 2006 03:33:52 +0000 (03:33 +0000)]
SMP support (xchg(), cas() and mb()) for PowerPC

18 years agoBugfix in completion code for :set and :unset.
Lemmih [Fri, 10 Feb 2006 18:13:19 +0000 (18:13 +0000)]
Bugfix in completion code for :set and :unset.

18 years agoCompletion for :set, :unset and :undef.
Lemmih [Fri, 10 Feb 2006 17:17:28 +0000 (17:17 +0000)]
Completion for :set, :unset and :undef.

18 years agooops, forgot some more SMP->THREADED_RTS conversions
Simon Marlow [Fri, 10 Feb 2006 15:32:36 +0000 (15:32 +0000)]
oops, forgot some more SMP->THREADED_RTS conversions

18 years agofix test for REG_BaseReg (it's spelled REG_Base)
Simon Marlow [Fri, 10 Feb 2006 12:35:52 +0000 (12:35 +0000)]
fix test for REG_BaseReg (it's spelled REG_Base)

18 years agoChange CVS for _darcs in dirs to prune during make dist
Duncan Coutts [Thu, 9 Feb 2006 09:32:04 +0000 (09:32 +0000)]
Change CVS for _darcs in dirs to prune during make dist

18 years agofix for dirty_MUT_VAR: don't try to recordMutableCap in gen 0
Simon Marlow [Fri, 10 Feb 2006 12:00:21 +0000 (12:00 +0000)]
fix for dirty_MUT_VAR: don't try to recordMutableCap in gen 0

18 years agoSTM fix from Tim Harris
Simon Marlow [Fri, 10 Feb 2006 11:21:11 +0000 (11:21 +0000)]
STM fix from Tim Harris

Fixes assertion failures with STM and -debug.  Tim says:
Sorry, it's a problem in how nested transactions are handled in
non-SMP builds.  It'll bite when trying to commit a nested transaction
which has read from a TVar but not updated it.

The call to validate_and_acquire_ownership in
stmCommitNestedTransaction should be the same as that in
stmCommitNestedTransaction, i.e.:

  result = validate_and_acquire_ownership(trec, (!use_read_phase), TRUE);

18 years agoimprovement to the deadlock detection
Simon Marlow [Thu, 9 Feb 2006 12:30:56 +0000 (12:30 +0000)]
improvement to the deadlock detection

When the RTS is idle, as detected by the timer signal, instead of
prodding capabilities from the signal handler (which is not guaranteed
to work - pthread_cond_signal() can't be called from signal handlers),
create a new thread to do it.

18 years agoSimplify the -B handling. The interface to the ghc library has changed slightly.
Lemmih [Fri, 10 Feb 2006 09:46:01 +0000 (09:46 +0000)]
Simplify the -B handling. The interface to the ghc library has changed slightly.

18 years agoFix desugaring of unboxed tuples
simonpj@microsoft.com [Thu, 9 Feb 2006 17:53:28 +0000 (17:53 +0000)]
Fix desugaring of unboxed tuples

This patch is a slightly-unsatisfactory fix to desugaring unboxed
tuples; it fixes ds057 which has been failing for some time.

Unsatisfactory because rather ad hoc -- but that applies to lots
of the unboxed tuple stuff.

18 years agox86_64: fix case of out-of-range operands to leaq
Simon Marlow [Thu, 9 Feb 2006 16:22:47 +0000 (16:22 +0000)]
x86_64: fix case of out-of-range operands to leaq

18 years agoMerge the smp and threaded RTS ways
Simon Marlow [Thu, 9 Feb 2006 15:44:49 +0000 (15:44 +0000)]
Merge the smp and threaded RTS ways

Now, the threaded RTS also includes SMP support.  The -smp flag is a
synonym for -threaded.  The performance implications of this are small
to negligible, and it results in a code cleanup and reduces the number
of combinations we have to test.

18 years agochange dirty_MUT_VAR() to use recordMutableCap()
Simon Marlow [Thu, 9 Feb 2006 15:04:20 +0000 (15:04 +0000)]
change dirty_MUT_VAR() to use recordMutableCap()
rather than recordMutableGen(), the former works better in SMP

18 years agoimprovement to the deadlock detection
Simon Marlow [Thu, 9 Feb 2006 12:30:56 +0000 (12:30 +0000)]
improvement to the deadlock detection

When the RTS is idle, as detected by the timer signal, instead of
prodding capabilities from the signal handler (which is not guaranteed
to work - pthread_cond_signal() can't be called from signal handlers),
create a new thread to do it.

18 years agoFix typo
simonpj@microsoft.com [Thu, 9 Feb 2006 12:42:08 +0000 (12:42 +0000)]
Fix typo

18 years agoFix instance rules for functional dependencies
simonpj@microsoft.com [Thu, 9 Feb 2006 11:35:31 +0000 (11:35 +0000)]
Fix instance rules for functional dependencies

GHC 6.4 implements a rather relaxed version of the Coverage Condition
which is actually too relaxed: the compiler can get into an infinite loop
as a result.

This commit fixes the problem (see Note [Coverage condition] in FunDeps.lhs)
and documents the change.

I also took the opportunity to add documentation about functional dependencies,
taken from the Hugs manual with kind permission of Mark Jones

18 years agofix for the unregisterised way
Simon Marlow [Thu, 9 Feb 2006 10:50:58 +0000 (10:50 +0000)]
fix for the unregisterised way

We always assign to BaseReg on return from resumeThread(), but in
cases where BaseReg is not an lvalue (eg. unreg) we need to disable
this assigment.  See comments for more details.

18 years agoprof/smp combination probably doesn't work, disable it
Simon Marlow [Thu, 9 Feb 2006 10:48:15 +0000 (10:48 +0000)]
prof/smp combination probably doesn't work, disable it

18 years agotiny panic msg fix
Simon Marlow [Thu, 9 Feb 2006 10:25:40 +0000 (10:25 +0000)]
tiny panic msg fix

18 years agoLoosen the rules for instance declarations (Part 2)
simonpj@microsoft.com [Thu, 9 Feb 2006 10:21:29 +0000 (10:21 +0000)]
Loosen the rules for instance declarations (Part 2)

Tidying up to Ross's  patch, plus adding documenation for it.

18 years agorelaxed instance termination test
Ross Paterson [Mon, 6 Feb 2006 11:16:51 +0000 (11:16 +0000)]
relaxed instance termination test

With -fglasgow-exts but not -fallow-undecidable-instances, GHC 6.4
requires that instances be of the following form:

 (1) each assertion in the context must constrain distinct variables
     mentioned in the head, and

 (2) at least one argument of the head must be a non-variable type.

This patch replaces these rules with the requirement that each assertion
in the context satisfy

 (1) no variable has more occurrences in the assertion than in the head, and

 (2) the assertion has fewer constructors and variables (taken together
     and counting repetitions) than the head.

This allows all instances permitted by the old rule, plus such instances as

       instance C a
       instance Show (s a) => Show (Sized s a)
       instance (Eq a, Show b) => C2 a b
       instance C2 Int a => C3 Bool [a]
       instance C2 Int a => C3 [a] b
       instance C4 a a => C4 [a] [a]

but still ensures that under any substitution assertions in the context
will be smaller than the head, so context reduction must terminate.

This is probably the best we can do if we consider each instance in
isolation.

18 years agoFix CPP failure by adding space before hASH_TBL_SIZE
simonpj@microsoft.com [Thu, 9 Feb 2006 09:37:04 +0000 (09:37 +0000)]
Fix CPP failure by adding space before hASH_TBL_SIZE

18 years agoan LDV profiling fix (might just fix ASSERTIONs, I'm not sure)
Simon Marlow [Wed, 8 Feb 2006 17:07:44 +0000 (17:07 +0000)]
an LDV profiling fix (might just fix ASSERTIONs, I'm not sure)

18 years agoDo type refinement in TcIface
simonpj@microsoft.com [Wed, 8 Feb 2006 15:44:12 +0000 (15:44 +0000)]
Do type refinement in TcIface

This commit fixes a bug in 6.4.1 and the HEAD.  Consider this code,
recorded **in an interface file**

    \(x::a) -> case y of
         MkT -> case x of { True -> ... }
(where MkT forces a=Bool)

In the "case x" we need to know x's type, because we use that
to find which module to look for "True" in. x's type comes from
the envt, so we must refine the envt.

The alternative would be to record more info with an IfaceCase,
but that would change the interface file format.

(This stuff will go away when we have proper coercions.)

18 years agoAdd mapOccEnv
simonpj@microsoft.com [Wed, 8 Feb 2006 15:43:43 +0000 (15:43 +0000)]
Add mapOccEnv

18 years agoA little more debug printing
simonpj@microsoft.com [Wed, 8 Feb 2006 15:07:01 +0000 (15:07 +0000)]
A little more debug printing

18 years agoShow types of case result when debug is on
simonpj@microsoft.com [Wed, 8 Feb 2006 15:03:57 +0000 (15:03 +0000)]
Show types of case result when debug is on

18 years agofix installation of binary dist when the PS docs aren't present
Simon Marlow [Wed, 8 Feb 2006 15:32:59 +0000 (15:32 +0000)]
fix installation of binary dist when the PS docs aren't present

Fixes #660

18 years agofix a bug in closure_sizeW_()
Simon Marlow [Wed, 8 Feb 2006 14:54:51 +0000 (14:54 +0000)]
fix a bug in closure_sizeW_()

18 years agomake the smp way RTS-only, normal libraries now work with -smp
Simon Marlow [Wed, 8 Feb 2006 14:33:48 +0000 (14:33 +0000)]
make the smp way RTS-only, normal libraries now work with -smp

We had to bite the bullet here and add an extra word to every thunk,
to enable running ordinary libraries on SMP.  Otherwise, we would have
needed to ship an extra set of libraries with GHC 6.6 in addition to
the two sets we already ship (normal + profiled), and all Cabal
packages would have to be compiled for SMP too.  We decided it best
just to take the hit now, making SMP easily accessible to everyone in
GHC 6.6.

Incedentally, although this increases allocation by around 12% on
average, the performance hit is around 5%, and much less if your inner
loop doesn't use any laziness.

18 years agoadd -dfaststring-stats to dump some stats about the FastString hash table
Simon Marlow [Wed, 8 Feb 2006 13:10:18 +0000 (13:10 +0000)]
add -dfaststring-stats to dump some stats about the FastString hash table

18 years agofix a warning
Simon Marlow [Tue, 7 Feb 2006 13:23:23 +0000 (13:23 +0000)]
fix a warning

18 years agocatch up with changes to Distribution.ParseUtils.ParseResult
Simon Marlow [Tue, 7 Feb 2006 11:11:11 +0000 (11:11 +0000)]
catch up with changes to Distribution.ParseUtils.ParseResult

18 years agoWibble to type signature
simonpj@microsoft.com [Tue, 7 Feb 2006 17:12:54 +0000 (17:12 +0000)]
Wibble to type signature

18 years agoEmpty forall should disable implicit quantification
simonpj@microsoft.com [Tue, 7 Feb 2006 08:51:37 +0000 (08:51 +0000)]
Empty forall should disable implicit quantification

18 years agoRemove unused constructor in SourceTypeCtxt
simonpj@microsoft.com [Mon, 6 Feb 2006 11:20:31 +0000 (11:20 +0000)]
Remove unused constructor in SourceTypeCtxt

18 years agoBasic completion in GHCi
Simon Marlow [Mon, 6 Feb 2006 12:26:54 +0000 (12:26 +0000)]
Basic completion in GHCi

This patch adds completion support to GHCi when readline is being
used.  Completion of identifiers (in scope only, but including
qualified identifiers) in expressions is provided.  Also, completion
of commands (:cmd), and special completion for certain commands
(eg. module names for the :module command) are also provided.

18 years agoImprove error report for pattern guards
simonpj@microsoft.com [Mon, 6 Feb 2006 10:17:30 +0000 (10:17 +0000)]
Improve error report for pattern guards

18 years agoAdd bang patterns
simonpj@microsoft.com [Fri, 3 Feb 2006 17:51:08 +0000 (17:51 +0000)]
Add bang patterns

This commit adds bang-patterns,
enabled by -fglasgow-exts or -fbang-patterns
diabled by -fno-bang-patterns

The idea is described here
http://haskell.galois.com/cgi-bin/haskell-prime/trac.cgi/wiki/BangPatterns

18 years agoAdd Bag.anyBag (analogous to List.any)
simonpj@microsoft.com [Fri, 3 Feb 2006 17:46:27 +0000 (17:46 +0000)]
Add Bag.anyBag (analogous to List.any)

18 years agoDeal correctly with lazy patterns and GADTs
simonpj@microsoft.com [Thu, 2 Feb 2006 13:04:09 +0000 (13:04 +0000)]
Deal correctly with lazy patterns and GADTs

18 years agoRecord the type in TuplePat (necessary for GADTs)
simonpj@microsoft.com [Thu, 2 Feb 2006 12:44:05 +0000 (12:44 +0000)]
Record the type in TuplePat (necessary for GADTs)

We must record the type of a TuplePat after typechecking, just like a ConPatOut,
so that desugaring works correctly for GADTs. See comments with the declaration
of HsPat.TuplePat, and test gadt15

18 years agoImprove error reporting in Core Lint
simonpj@microsoft.com [Thu, 2 Feb 2006 12:43:27 +0000 (12:43 +0000)]
Improve error reporting in Core Lint

18 years agodon't clean ghc-inplace when cleaning stages other than 1
Simon Marlow [Thu, 2 Feb 2006 12:43:59 +0000 (12:43 +0000)]
don't clean ghc-inplace when cleaning stages other than 1

18 years agoImprove error reporting in typechecker
simonpj@microsoft.com [Wed, 1 Feb 2006 17:03:32 +0000 (17:03 +0000)]
Improve error reporting in typechecker

18 years agoTrim imports
simonpj@microsoft.com [Wed, 1 Feb 2006 17:02:48 +0000 (17:02 +0000)]
Trim imports

18 years agoYet another fix to an old hi-boot-6 file
simonpj@microsoft.com [Wed, 1 Feb 2006 10:55:44 +0000 (10:55 +0000)]
Yet another fix to an old hi-boot-6 file