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* Add basic support for GHCJSAustin Seipp2013-09-063-0/+6
| | | | | | | | | | | | | | | | | | | This patch encompasses most of the basic infrastructure for GHCJS. It includes: * A new extension, -XJavaScriptFFI * A new architecture, ArchJavaScript * Parser and lexer support for 'foreign import javascript', only available under -XJavaScriptFFI, using ArchJavaScript. * As a knock-on, there is also a new 'WayCustom' constructor in DynFlags, so clients of the GHC API can add custom 'tags' to their built files. This should be useful for other users as well. The remaining changes are really just the resulting fallout, making sure all the cases are handled appropriately for DynFlags and Platform. Authored-by: Luite Stegeman <stegeman@gmail.com> Signed-off-by: Austin Seipp <aseipp@pobox.com>
* Fix typosGabor Greif2013-04-071-3/+3
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* TyposGabor Greif2013-04-071-1/+1
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* Fix typosGabor Greif2013-04-063-3/+3
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* Haddoc fixBen Lippmeier2012-11-141-9/+9
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* Comments and formatting to register allocator statsBen Lippmeier2012-11-141-38/+87
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* Comments and formatting to spill cost codeBen Lippmeier2012-11-141-52/+62
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* Comments and formatting to spill cleanerBen Lippmeier2012-11-141-147/+166
| | | | No functional changes.
* Comments and formatting to register allocatorsBen Lippmeier2012-11-145-252/+326
| | | | No functional changes.
* De-tabify register allocator codeBen Lippmeier2012-11-1410-961/+889
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* Tell the compiler about alpha, mipseb and mipsel again; fixes #7339Ian Lynagh2012-11-133-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts the compiler parts of commit 7b594a5d7ac29972db39228e9c8b7f384313f39b Author: David Terei <davidterei@gmail.com> Date: Mon Nov 21 12:05:18 2011 -0800 Remove registerised code for dead architectures: mips, ia64, alpha, hppa1, m68k In particular, we want to know whether bewareLoadStoreAlignment should return True or False for them. It also reverts commit 3fc68b5c356b39b2b52a86d953367d0021c13262 Author: Simon Marlow <marlowsd@gmail.com> Date: Wed Jan 4 11:44:02 2012 +0000 Remove missing archs (mipseb, mipsel, alpha) (#5734) It doesn't hurt to map these to ArchUnknown since we don't need to know anything specific about them, and adding them would be a pain (there are a bunch of places where we have to case-match on all the arches to avoid warnings).
* Remove OldCmm, convert backends to consume new CmmSimon Marlow2012-11-129-22/+20
| | | | | | | | | | | | | | | | | | This removes the OldCmm data type and the CmmCvt pass that converts new Cmm to OldCmm. The backends (NCGs, LLVM and C) have all been converted to consume new Cmm. The main difference between the two data types is that conditional branches in new Cmm have both true/false successors, whereas in OldCmm the false case was a fallthrough. To generate slightly better code we occasionally need to invert a conditional to ensure that the branch-not-taken becomes a fallthrough; this was previously done in CmmCvt, and it is now done in CmmContFlowOpt. We could go further and use the Hoopl Block representation for native code, which would mean that we could use Hoopl's postorderDfs and analyses for native code, but for now I've left it as is, using the old ListGraph representation for native code.
* Attach global register liveness info to Cmm procedures.Geoffrey Mainland2012-10-306-32/+32
| | | | | | | All Cmm procedures now include the set of global registers that are live on procedure entry, i.e., the global registers used to pass arguments to the procedure. Only global registers that are use to pass arguments are included in this list.
* Refactor the way dump flags are handledIan Lynagh2012-10-181-3/+3
| | | | | | | | | | | | | We were being inconsistent about how we tested whether dump flags were enabled; in particular, sometimes we also checked the verbosity, and sometimes we didn't. This lead to oddities such as "ghc -v4" printing an "Asm code" section which didn't contain any code, and "-v4" enabled some parts of "-ddump-deriv" but not others. Now all the tests use dopt, which also takes the verbosity into account as appropriate.
* Some alpha renamingIan Lynagh2012-10-161-6/+6
| | | | | Mostly d -> g (matching DynFlag -> GeneralFlag). Also renamed if* to when*, matching the Haskell if/when names
* Produce new-style Cmm from the Cmm parserSimon Marlow2012-10-081-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The main change here is that the Cmm parser now allows high-level cmm code with argument-passing and function calls. For example: foo ( gcptr a, bits32 b ) { if (b > 0) { // we can make tail calls passing arguments: jump stg_ap_0_fast(a); } return (x,y); } More details on the new cmm syntax are in Note [Syntax of .cmm files] in CmmParse.y. The old syntax is still more-or-less supported for those occasional code fragments that really need to explicitly manipulate the stack. However there are a couple of differences: it is now obligatory to give a list of live GlobalRegs on every jump, e.g. jump %ENTRY_CODE(Sp(0)) [R1]; Again, more details in Note [Syntax of .cmm files]. I have rewritten most of the .cmm files in the RTS into the new syntax, except for AutoApply.cmm which is generated by the genapply program: this file could be generated in the new syntax instead and would probably be better off for it, but I ran out of enthusiasm. Some other changes in this batch: - The PrimOp calling convention is gone, primops now use the ordinary NativeNodeCall convention. This means that primops and "foreign import prim" code must be written in high-level cmm, but they can now take more than 10 arguments. - CmmSink now does constant-folding (should fix #7219) - .cmm files now go through the cmmPipeline, and as a result we generate better code in many cases. All the object files generated for the RTS .cmm files are now smaller. Performance should be better too, but I haven't measured it yet. - RET_DYN frames are removed from the RTS, lots of code goes away - we now have some more canned GC points to cover unboxed-tuples with 2-4 pointers, which will reduce code size a little.
* Merge branch 'master' of darcs.haskell.org:/srv/darcs//ghcIan Lynagh2012-09-203-32/+37
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| * fix warningsSimon Marlow2012-09-201-4/+1
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| * fix warningSimon Marlow2012-09-201-0/+5
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| * Teach the linear register allocator how to allocate more stack if necessarySimon Marlow2012-09-202-29/+32
| | | | | | | | | | | | | | | | | | This squashes the "out of spill slots" panic that occasionally happens on x86, by adding instructions to bump and retreat the C stack pointer as necessary. The panic has become more common since the new codegen, because we lump code into larger blocks, and the register allocator isn't very good at reusing stack slots for spilling (see Note [extra spill slots]).
* | Remove redundant pragmas from RegAlloc.LivenessIan Lynagh2012-09-201-2/+0
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* | Make addSRM to strict additionsIan Lynagh2012-09-201-1/+4
| | | | | | | | I assume that this is what is intended, as it is used with foldl'
* | Fix warnings in RegAlloc.Graph.StatsIan Lynagh2012-09-201-1/+6
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* | Whitespace only in nativeGen/RegAlloc/Graph/Stats.hsIan Lynagh2012-09-201-198/+192
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* Move some more constants into platformConstantsIan Lynagh2012-09-147-27/+28
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* Remove more Platform argumentsIan Lynagh2012-09-142-50/+51
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* Whitespace only in nativeGen/RegAlloc/Linear/JoinToTargets.hsIan Lynagh2012-09-141-205/+196
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* Remove more Platform argumentsIan Lynagh2012-09-143-30/+33
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* Remove a load of Platform arguments from RegM functionsIan Lynagh2012-09-141-74/+73
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* Put DynFlags into the RegM monadIan Lynagh2012-09-143-20/+26
| | | | | Also moved the type definition into RegAlloc.Linear.State to de-orphan the Monad instance.
* Whitespace only in nativeGen/RegAlloc/Linear/State.hsIan Lynagh2012-09-141-55/+50
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* Remove some CPPIan Lynagh2012-09-104-26/+81
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* Move more code into codeGen/CodeGen/Platform.hsIan Lynagh2012-08-285-41/+40
| | | | | | | | HaskellMachRegs.h is no longer included in anything under compiler/ Also, includes/CodeGen.Platform.hs now includes "stg/MachRegs.h" rather than <stg/MachRegs.h> which means that we always get the file from the tree, rather than from the bootstrapping compiler.
* Whitespace only in nativeGen/RegAlloc/Linear/X86/FreeRegs.hsIan Lynagh2012-08-211-24/+17
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* Pass platform down to lastintIan Lynagh2012-08-213-8/+8
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* Pass platform down to lastxmmIan Lynagh2012-08-218-75/+91
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* Start separating out the RTS and Haskell imports of MachRegs.hIan Lynagh2012-08-061-1/+1
| | | | No functional differences yet
* comment wibbleSimon Marlow2012-08-021-1/+1
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* Improve code generated when real registers are clobberedSimon Marlow2012-07-311-32/+59
| | | | | | | | There was a long-standing ToDo here that I just did: if a real register is clobbered by the current instruction, then we should move it to another free register rather than spilling it to memory. This case crops up more often now that the register allocator can allocate into the fixed Rn registers.
* New codegen: do not split proc-points when using the NCGSimon Marlow2012-07-301-2/+2
| | | | | | | | | Proc-point splitting is only required by backends that do not support having proc-points within a code block (that is, everything except the native backend, i.e. LLVM and C). Not doing proc-point splitting saves some compilation time, and might produce slightly better code in some cases.
* bugfix: cope when a source reg is dead at a join pointSimon Marlow2012-07-301-10/+4
| | | | | We didn't trip over this one until I started generating code without proc-point splitting, which has more join points and loops.
* Fix a warningIan Lynagh2012-07-161-1/+7
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* Remove redundant warning suppressionIan Lynagh2012-07-161-1/+0
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* Move -fno-warn-orphan flag into individual modulesIan Lynagh2012-07-151-0/+1
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* fix warningSimon Marlow2012-07-061-1/+0
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* Allow the register allocator access to argument regs (R1.., F1.., etc.)Simon Marlow2012-07-061-8/+15
| | | | | | | | | | | | | | | This was made possible by the recent change to codeGen to attach the live GlobalRegs to every CmmJump, and we'll be relying on it quite heavily in the new code generator too. What this means essentially is that when we see x = R1 the register allocator will automatically assign x to R1 and generate no code at all (also known as "coalescing"). It wasn't possible before because the register allocator had to assume that R1 was always live, because it didn't have access to accurate liveness information.
* bugfix: coalescing moves from RealReg to VirtualReg got broken at some pointSimon Marlow2012-07-061-1/+6
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* Stop exporting, and stop using, some deprecated functionsIan Lynagh2012-06-131-3/+3
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* Remove more unused Platform argumentsIan Lynagh2012-06-133-11/+8
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* Remove PlatformOutputableIan Lynagh2012-06-135-68/+63
| | | | | We can now get the Platform from the DynFlags inside an SDoc, so we no longer need to pass the Platform in.
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