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* Remove some old-codegen cruftSimon Marlow2012-09-251-166/+0
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* Move wORD_SIZE_IN_BITS to DynFlagsIan Lynagh2012-09-141-50/+51
| | | | This frees wORD_SIZE up to be moved out of HaskellConstants
* Change more uses of sortLe to sortByIan Lynagh2012-06-221-2/+2
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* Fix warnings in simplStg/SRT.lhsIan Lynagh2011-11-061-7/+4
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* Whitespace in simplStg/SRT.lhsIan Lynagh2011-11-061-19/+12
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* Use -fwarn-tabs when validatingIan Lynagh2011-11-041-0/+7
| | | | | We only use it for "compiler" sources, i.e. not for libraries. Many modules have a -fno-warn-tabs kludge for now.
* Overhaul of infrastructure for profiling, coverage (HPC) and breakpointsSimon Marlow2011-11-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | User visible changes ==================== Profilng -------- Flags renamed (the old ones are still accepted for now): OLD NEW --------- ------------ -auto-all -fprof-auto -auto -fprof-exported -caf-all -fprof-cafs New flags: -fprof-auto Annotates all bindings (not just top-level ones) with SCCs -fprof-top Annotates just top-level bindings with SCCs -fprof-exported Annotates just exported bindings with SCCs -fprof-no-count-entries Do not maintain entry counts when profiling (can make profiled code go faster; useful with heap profiling where entry counts are not used) Cost-centre stacks have a new semantics, which should in most cases result in more useful and intuitive profiles. If you find this not to be the case, please let me know. This is the area where I have been experimenting most, and the current solution is probably not the final version, however it does address all the outstanding bugs and seems to be better than GHC 7.2. Stack traces ------------ +RTS -xc now gives more information. If the exception originates from a CAF (as is common, because GHC tends to lift exceptions out to the top-level), then the RTS walks up the stack and reports the stack in the enclosing update frame(s). Result: +RTS -xc is much more useful now - but you still have to compile for profiling to get it. I've played around a little with adding 'head []' to GHC itself, and +RTS -xc does pinpoint the problem quite accurately. I plan to add more facilities for stack tracing (e.g. in GHCi) in the future. Coverage (HPC) -------------- * derived instances are now coloured yellow if they weren't used * likewise record field names * entry counts are more accurate (hpc --fun-entry-count) * tab width is now correct (markup was previously off in source with tabs) Internal changes ================ In Core, the Note constructor has been replaced by Tick (Tickish b) (Expr b) which is used to represent all the kinds of source annotation we support: profiling SCCs, HPC ticks, and GHCi breakpoints. Depending on the properties of the Tickish, different transformations apply to Tick. See CoreUtils.mkTick for details. Tickets ======= This commit closes the following tickets, test cases to follow: - Close #2552: not a bug, but the behaviour is now more intuitive (test is T2552) - Close #680 (test is T680) - Close #1531 (test is result001) - Close #949 (test is T949) - Close #2466: test case has bitrotted (doesn't compile against current version of vector-space package)
* Remove unused importsIan Lynagh2009-07-071-2/+0
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* Don't import FastString in HsVersions.hIan Lynagh2008-03-291-2/+0
| | | | Modules that need it import it themselves instead.
* DEBUG removalIan Lynagh2008-03-291-4/+0
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* -DDEBUG build fixIan Lynagh2008-03-221-1/+1
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* Add and use seqBitmap when constructing SRTsIan Lynagh2008-02-271-2/+2
| | | | | | | | | | | This roughly halves memory usage when compiling module Foo where foo :: Double -> Int foo x | x == 1 = 1 ... foo x | x == 500 = 500 without optimisation.
* Fixed warnings in simplStg/SRT, except for incomplete pattern matchesTwan van Laarhoven2008-01-261-10/+15
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* Fix CodingStyle#Warnings URLsIan Lynagh2007-09-041-1/+1
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* Use OPTIONS rather than OPTIONS_GHC for pragmasIan Lynagh2007-09-031-2/+2
| | | | | | | Older GHCs can't parse OPTIONS_GHC. This also changes the URL referenced for the -w options from WorkingConventions#Warnings to CodingStyle#Warnings for the compiler modules.
* Add {-# OPTIONS_GHC -w #-} and some blurb to all compiler modulesIan Lynagh2007-09-011-0/+7
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* Warning fix for unused and redundant importsMichael D. Adams2007-05-101-4/+1
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* Haskell Program Coverageandy@galois.com2006-10-241-0/+2
| | | | | | | | | | | | | | | | | | | | This large checkin is the new ghc version of Haskell Program Coverage, an expression-level coverage tool for Haskell. Parts: - Hpc.[ch] - small runtime support for Hpc; reading/writing *.tix files. - Coverage.lhs - Annotates the HsSyn with coverage tickboxes. - New Note's in Core, - TickBox -- ticked on entry to sub-expression - BinaryTickBox -- ticked on exit to sub-expression, depending -- on the boolean result. - New Stg level TickBox (no BinaryTickBoxes, though) You can run the coverage tool with -fhpc at compile time. Main must be compiled with -fhpc.
* Reorganisation of the source treeSimon Marlow2006-04-071-0/+165
Most of the other users of the fptools build system have migrated to Cabal, and with the move to darcs we can now flatten the source tree without losing history, so here goes. The main change is that the ghc/ subdir is gone, and most of what it contained is now at the top level. The build system now makes no pretense at being multi-project, it is just the GHC build system. No doubt this will break many things, and there will be a period of instability while we fix the dependencies. A straightforward build should work, but I haven't yet fixed binary/source distributions. Changes to the Building Guide will follow, too.
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