1. 16 Sep, 2003 1 commit
    • simonmar's avatar
      [project @ 2003-09-16 13:03:37 by simonmar] · 2129fa6f
      simonmar authored
      Legacy Removal
      ~~~~~~~~~~~~~~
      
      The following features have been consigned to the bit bucket:
      
        _ccall_
        _casm_
        ``....''  (lit-lits)
        the CCallable class
        the CReturnable class
      2129fa6f
  2. 15 Sep, 2003 2 commits
    • sof's avatar
      [project @ 2003-09-15 20:39:38 by sof] · ce42f19f
      sof authored
      factor out code that handles depositing of work items on the
        thread pool's request queue.
      - when it looks as if a new worker thread needs to be created, give
        up our quantum first in the hope that this might at the last minute
        turn up more idle worker threads.
      - add comment re: trimming pool size.
      
      Merged to STABLE eventually; I may continue tinkering with this code
      some more over the next day or two.
      ce42f19f
    • simonmar's avatar
      [project @ 2003-09-15 14:20:45 by simonmar] · 02670da5
      simonmar authored
      Update comment for GhcUnregisterised.
      02670da5
  3. 14 Sep, 2003 3 commits
  4. 13 Sep, 2003 1 commit
  5. 12 Sep, 2003 5 commits
  6. 11 Sep, 2003 14 commits
    • simonpj's avatar
      [project @ 2003-09-11 16:46:15 by simonpj] · 424d45ae
      simonpj authored
      Make sure that exprIsTrivial responds "False" to
      	(scc "foo" x)
      
      We do not treat (_scc_ "foo" x) as trivial, because
        a) it really generates code, (and a heap object when it's
           a function arg) to capture the cost centre
        b) see the note [SCC-and-exprIsTrivial] in Simplify.simplLazyBind
      424d45ae
    • wolfgang's avatar
      [project @ 2003-09-11 15:36:37 by wolfgang] · e4ef00a8
      wolfgang authored
      The FP_CHECK_CONSTS test for the errno constants requires stdio.h to be
      included, at least on Mac OS X.
      
      MERGE TO STABLE.
      e4ef00a8
    • wolfgang's avatar
      [project @ 2003-09-11 15:12:25 by wolfgang] · d8144db0
      wolfgang authored
      Mac OS X:
      
      Bypass the dlfcn compatibility layer in lookupSymbol, use Apple's
      NSModule functions directly instead. This protects us from differences
      between different implementations of the dlcompat library (regarding
      treatment of prefixed underscores).
      Note that the compatibility layer is still used in addDLL (it's needed by
      the POSIX library anyway).
      
      Also, add a little more sanity checking (checkProddableBlock) to the Mach-O
      linker itself.
      
      MERGE TO STABLE
      d8144db0
    • simonmar's avatar
      [project @ 2003-09-11 14:34:24 by simonmar] · a7e3ac4e
      simonmar authored
      Document -fth and -fimplicit-params
      a7e3ac4e
    • simonpj's avatar
      [project @ 2003-09-11 14:20:40 by simonpj] · 25aeb246
      simonpj authored
      --------------------------
      	    Allow recursive dictionaries
      	   --------------------------
      
      In response to various bleatings, here's a lovely fix that involved simply
      inverting two lines of code, to allow recursive dictionaries.  Here's
      the comment.  (typecheck/should_run/tc030 tests it)
      
      Note [RECURSIVE DICTIONARIES]
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      Consider
          data D r = ZeroD | SuccD (r (D r));
      
          instance (Eq (r (D r))) => Eq (D r) where
              ZeroD     == ZeroD     = True
              (SuccD a) == (SuccD b) = a == b
              _         == _         = False;
      
          equalDC :: D [] -> D [] -> Bool;
          equalDC = (==);
      
      We need to prove (Eq (D [])).  Here's how we go:
      
      	d1 : Eq (D [])
      
      by instance decl, holds if
      	d2 : Eq [D []]
      	where 	d1 = dfEqD d2
      
      by instance decl of Eq, holds if
      	d3 : D []
      	where	d2 = dfEqList d2
      		d1 = dfEqD d2
      
      But now we can "tie the knot" to give
      
      	d3 = d1
      	d2 = dfEqList d2
      	d1 = dfEqD d2
      
      and it'll even run!  The trick is to put the thing we are trying to prove
      (in this case Eq (D []) into the database before trying to prove its
      contributing clauses.
      25aeb246
    • simonpj's avatar
      [project @ 2003-09-11 14:18:38 by simonpj] · b434cbc6
      simonpj authored
      Add comments, change a WARN to an ASSERT
      b434cbc6
    • simonpj's avatar
      [project @ 2003-09-11 13:41:38 by simonpj] · 380ec6be
      simonpj authored
      Undo bogus claim that
      	_scc_ "foo" x  ==  x
      
      This just isn't right in general, for example when x is a
      top-level function.
      380ec6be
    • simonmar's avatar
      [project @ 2003-09-11 10:36:56 by simonmar] · 52d7dd31
      simonmar authored
      HEAD is now 6.3
      52d7dd31
    • simonmar's avatar
      [project @ 2003-09-11 10:35:28 by simonmar] · 29558566
      simonmar authored
      When setting TARGETPLATFORM, we should also set foo_TARGET_ARCH,
      bar_TARGET_OS, etc.
      29558566
    • simonmar's avatar
      [project @ 2003-09-11 10:26:31 by simonmar] · dbe5cd5d
      simonmar authored
      Add missing 'cd T' to the porting instructions.
      dbe5cd5d
    • simonmar's avatar
      [project @ 2003-09-11 09:29:22 by simonmar] · d854ef58
      simonmar authored
      The reify keywords should be valid when template haskell is turned on.
      d854ef58
    • sof's avatar
      [project @ 2003-09-11 05:05:34 by sof] · b960cef5
      sof authored
      hGetStringBuffer: open file in binary mode
      b960cef5
    • sof's avatar
      [project @ 2003-09-11 00:58:02 by sof] · 384a584a
      sof authored
      Fix race condition re: WorkItems and SubmitWork().
      
      It is unsafe to access a WorkItem after it has been queued, since
      a worker thread may have already serviced (and freed) it.
      Hence, return request IDs without looking at the WorkItem.
      
      If desired, this one could be merged to STABLE.
      384a584a
    • sof's avatar
      [project @ 2003-09-11 00:39:04 by sof] · 3565204c
      sof authored
      awaitRequests(): canonicalize removal of thread from blocked_queue
      3565204c
  7. 10 Sep, 2003 2 commits
    • simonmar's avatar
      [project @ 2003-09-10 16:44:03 by simonmar] · 7cbba64b
      simonmar authored
      New flags for individual syntax extensions:
      
        -fth                enables template haskell
        -fimplicit-params   enables implicit parameters
      
      These extensions are still implied by -fglasgow-exts, but they can now
      be switched off individually with -fno-th and -fno-implicit-params
      respectively.  Also, -fno-ffi now works as expected.
      
      I cleaned up the interface to the lexer a bit while I was here.
      7cbba64b
    • simonmar's avatar
      [project @ 2003-09-10 14:45:24 by simonmar] · 868973ac
      simonmar authored
      Quick hack to work around the dynamic exception crashes in GHCi.  The
      problem is this: the Data.Typeable library (Data.Dymamic in previous
      versions of GHC) maintains an internal cache mapping type names to
      unique numbers, and this cache is used for fast comparisons on
      TypeReps.  In GHCi, there are actually two versions of the
      Data.Typeable library loaded: one linked to GHCi itself, and the other
      dynamically loaded, so there are two copies of the hash tables.
      
      The problem is that if we have a Dynamic value generated using one set
      of hash tables, it will erroneously appear to be of a different type
      when the other hash tables are used.
      
      The hack I've instigated is to use the central RTS genSym (which
      already exists) to generate the unique Ids, so that the two copies of
      the dynamic library will be using distinct Ids, and Dynamics from one
      will never be recognisable to the other.
      868973ac
  8. 09 Sep, 2003 6 commits
  9. 08 Sep, 2003 6 commits