mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-26 08:31:46 +01:00
060d81b8fa
svn+ssh://jonas@svn.freepascal.org/FPC/svn/fpc/branches/wpo
........
r11878 | jonas | 2008-10-11 02:25:18 +0200 (Sat, 11 Oct 2008) | 19 lines
+ initial implementation of whole-program optimisation framework
+ implementation of whole-program devirtualisation
o use:
a) generate whole-program optimisation information (no need
to completely compile the program and all of its units
with -OW/-FW, only the main program is sufficient)
fpc -OWdevirtcalls -FWmyprog.wpo myprog
b) use it to optimise the program
fpc -B -Owdevirtcalls -Fwmyprog.wpo myprog
(the -B is not required, but only sources recompiled during
the second pass will actually be optimised -- if you want,
you can even rebuild the rtl devirtualised for a particular
program; and these options can obviously also be used
together with regular optimisation switches)
o warning:
- there are no checks yet to ensure that you do not use
units optimised for a particular program with another
program (or with a changed version of the same program)
........
r11881 | jonas | 2008-10-11 19:35:52 +0200 (Sat, 11 Oct 2008) | 13 lines
* extracted code to detect constructed class/object types from
tcallnode.gen_vmt_tree into its own method to avoid clutter
* detect x.classtype.create constructs (with classtype = the
system.tobject.classtype method), and treat them as if a
"class of x" has been instantiated rather than a
"class of tobject". this required storing the instantiated
classrefs in their own array though, because at such a
point we don't have a "class of x" tdef available (so
now "x", and all other defs instantiated via a classref,
are now stored as tobjectdefs in a separate array)
+ support for devirtualising class methods (including
constructors)
........
r11882 | jonas | 2008-10-11 20:44:02 +0200 (Sat, 11 Oct 2008) | 7 lines
+ -Owoptvmts whole program optimisation which replaces vmt entries
with method names of child classes in case the current class'
method can never be called (e.g., because this class is never
instantiated). As a result, such methods can then be removed
by dead code removal/smart linking (not much effect for either
the compiler, lazarus or a trivial lazarus app though).
........
r11889 | jonas | 2008-10-12 14:29:54 +0200 (Sun, 12 Oct 2008) | 2 lines
* some comment fixes
........
r11891 | jonas | 2008-10-12 18:49:13 +0200 (Sun, 12 Oct 2008) | 4 lines
* fixed twpofilereader.getnextnoncommentline() when reusing a previously
read line
* fixed skipping of unnecessary wpo feedback file sections
........
r11892 | jonas | 2008-10-12 23:42:43 +0200 (Sun, 12 Oct 2008) | 31 lines
+ symbol liveness wpo information extracted from smartlinked programs
(-OW/-Owsymbolliveness)
+ use symbol liveness information to improve devirtualisation (don't
consider classes created in code that has been dead code stripped).
This requires at least two passes of using wpo (first uses dead code
info to locate classes that are constructed only in dead code,
second pass uses this info to potentially further devirtualise).
I.e.:
1) generate initial liveness and devirtualisation feedback
fpc -FWtt.wpo -OWall tt.pp -Xs- -CX -XX
2) use previously generated feedback, and regenerate new feedback
based on this (i.e., disregard classes created in dead code)
fpc -FWtt-1.wpo -OWall -Fwtt.wo -Owall tt.pp -Xs- -CX -XX
3) use the newly generated feedback (in theory, it is possible
that even more opportunities pop up afterwards; you can
continue until the program does not get smaller anymore)
fpc -Fwtt-1.wpo -Owall tt.pp -CX -XX
* changed all message() to cgmessage() calls so the set codegenerror
* changed static fsectionhandlers field to a regular field called
fwpocomponents
* changed registration of wpocomponents: no longer happens in the
initialization section of their unit, but in the InitWpo routine
(which has been moved from the woinfo to the wpo unit). This way
you can register different classes based on the target/parameters.
+ added static method to twpocomponentbase for checking whether
the command line parameters don't conflict with the requested
optimisations (e.g. generating liveness info requires that
smartlinking is turned on)
+ added static method to twpocomponentbase to request the
section name
........
r11893 | jonas | 2008-10-12 23:53:57 +0200 (Sun, 12 Oct 2008) | 3 lines
* fixed comment error (twpodeadcodeinfo keeps a list of live,
not dead symbols)
........
r11895 | jonas | 2008-10-13 00:13:59 +0200 (Mon, 13 Oct 2008) | 2 lines
+ documented -OW<x>, -Ow<x>, -FW<x> and -Fw<x> wpo parameters
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r11899 | jonas | 2008-10-14 22:14:56 +0200 (Tue, 14 Oct 2008) | 2 lines
* replaced hardcoded string with objdumpsearchstr constant
........
r11900 | jonas | 2008-10-14 22:15:25 +0200 (Tue, 14 Oct 2008) | 2 lines
* reset wpofeedbackinput and wpofeedbackoutput in wpodone
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r11901 | jonas | 2008-10-14 22:16:07 +0200 (Tue, 14 Oct 2008) | 2 lines
* various additional comments and comment fixes
........
r11902 | jonas | 2008-10-15 18:09:42 +0200 (Wed, 15 Oct 2008) | 5 lines
* store vmt procdefs in the ppu files so we don't have to use a hack to
regenerate them for whole-program optimisation
* fixed crash when performing devirtualisation optimisation on programs
that do not construct any classes/objects with optimisable vmts
........
r11935 | jonas | 2008-10-19 12:24:26 +0200 (Sun, 19 Oct 2008) | 4 lines
* set the vmt entries of non-class virtual methods of not instantiated
objects/classes to FPC_ABSTRACTERROR so the code they refer to can
be thrown away if it is not referred to in any other way either
........
r11938 | jonas | 2008-10-19 20:55:02 +0200 (Sun, 19 Oct 2008) | 7 lines
* record all classrefdefs/objdefs for which a loadvmtaddrnode is generated,
and instead of marking all classes that derive from instantiated
classrefdefs as instantiated, only mark those classes from the above
collection that derive from instantiated classrefdefs as
instantiated (since to instantiate a class, you have to load its vmt
somehow -- this may be broken by using assembler code though)
........
r12212 | jonas | 2008-11-23 12:26:34 +0100 (Sun, 23 Nov 2008) | 3 lines
* fixed to work with the new vmtentries that are always available and
removed previously added code to save/load vmtentries to ppu files
........
r12304 | jonas | 2008-12-05 22:23:30 +0100 (Fri, 05 Dec 2008) | 4 lines
* check whether the correct wpo feedback file is used in the current
compilation when using units that were compiled using wpo information
during a previous compilation run
........
r12308 | jonas | 2008-12-06 18:03:39 +0100 (Sat, 06 Dec 2008) | 2 lines
* abort compilation if an error occurred during wpo initialisation
........
r12309 | jonas | 2008-12-06 18:04:28 +0100 (Sat, 06 Dec 2008) | 3 lines
* give an error message instead of crashing with an io exception if the
compiler is unable to create the wpo feedback file specified using -FW
........
r12310 | jonas | 2008-12-06 18:12:43 +0100 (Sat, 06 Dec 2008) | 3 lines
* don't let the used wpo feedback file influence the interface crc (there's
a separate check for such changes)
........
r12316 | jonas | 2008-12-08 19:08:25 +0100 (Mon, 08 Dec 2008) | 3 lines
* document the format of the sections of the wpo feedback file inside the
feedback file itself
........
r12330 | jonas | 2008-12-10 22:26:47 +0100 (Wed, 10 Dec 2008) | 2 lines
* use sysutils instead of dos to avoid command line length limits
........
r12331 | jonas | 2008-12-10 22:31:11 +0100 (Wed, 10 Dec 2008) | 3 lines
+ support for testing whole program optimisation tests (multiple
compilations using successively generated feedback files)
........
r12332 | jonas | 2008-12-10 22:31:40 +0100 (Wed, 10 Dec 2008) | 2 lines
+ whole program optimisation tests
........
r12334 | jonas | 2008-12-10 22:38:07 +0100 (Wed, 10 Dec 2008) | 2 lines
- removed unused local variable
........
r12339 | jonas | 2008-12-11 18:06:36 +0100 (Thu, 11 Dec 2008) | 2 lines
+ comments for newly added fields to tobjectdef for devirtualisation
........
r12340 | jonas | 2008-12-11 18:10:01 +0100 (Thu, 11 Dec 2008) | 2 lines
* increase ppu version (was no longer different from trunk due to merging)
........
git-svn-id: trunk@12341 -
143 lines
2.7 KiB
PHP
143 lines
2.7 KiB
PHP
{$mode objfpc}
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{$asmmode default}
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{$H-}
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{$goto on}
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{$inline on}
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{$interfaces corba}
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{$ifdef win32}
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{ 256 MB stack }
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{ under windows the stack can't grow }
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{$MEMORY 256000000}
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{$else win32}
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{$ifdef win64}
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{ 512 MB stack }
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{ under windows the stack can't grow }
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{$MEMORY 512000000}
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{$else win64}
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{ 1 MB stack }
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{$MEMORY 1000000}
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{$endif win64}
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{$endif win32}
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{ This reduces the memory requirements a lot }
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{$PACKENUM 1}
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{$ifdef FPC_HAS_VARSETS}
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{$ifndef FPC_BIG_ENDIAN}
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{ $define USE_PACKSET1}
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{$endif}
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{$endif FPC_HAS_VARSETS}
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{$ifdef USE_PACKSET1}
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{$PACKSET 1}
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{$endif USE_PACKSET1}
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{ We don't use exceptions, so turn off the implicit
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exceptions in the constructors }
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{$IMPLICITEXCEPTIONS OFF}
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{ Inline small functions, but not when EXTDEBUG is used }
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{$ifndef EXTDEBUG}
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{$define USEINLINE}
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{$endif EXTDEBUG}
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{$define USEEXCEPT}
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{$ifdef cpuarm}
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{$packrecords c}
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{$endif cpuarm}
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{$ifdef i386}
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{$define cpu32bit}
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{$define cpu32bitaddr}
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{$define cpu32bitalu}
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{$define x86}
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{$define cpuflags}
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{$define cpuextended}
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{$define SUPPORT_MMX}
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{$define cpumm}
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{$define fewintregisters}
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{$endif i386}
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{$ifdef x86_64}
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{$define x86}
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{$define cpuflags}
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{$define cpu64bitalu}
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{$define cpu64bitaddr}
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{$define cpuextended}
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{$define cpufloat128}
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{$define cputargethasfixedstack}
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{$define cpumm}
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{$endif x86_64}
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{$ifdef alpha}
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{$define cpu64bitalu}
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{$define cpu64bitaddr}
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{$endif alpha}
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{$ifdef sparc}
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{$define cpu32bit}
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{$define cpu32bitaddr}
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{$define cpu32bitalu}
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{$define cpuflags}
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{$define cputargethasfixedstack}
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{$endif sparc}
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{$ifdef powerpc}
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{$define cpu32bit}
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{$define cpu32bitaddr}
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{$define cpu32bitalu}
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{$define cpuflags}
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{$define cputargethasfixedstack}
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{$define cpumm}
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{$endif powerpc}
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{$ifdef powerpc64}
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{$define cpu64bitalu}
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{$define cpu64bitaddr}
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{$define cpuflags}
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{$define cputargethasfixedstack}
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{$define cpumm}
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{$endif powerpc64}
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{$ifdef arm}
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{$define cpu32bit}
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{$define cpu32bitaddr}
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{$define cpu32bitalu}
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{$define cpuflags}
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{$define cpufpemu}
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{$define cpuneedsdiv32helper}
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{$define cputargethasfixedstack}
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{ inherit FPC_ARMEL? }
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{$if defined(CPUARMEL) and not(defined(FPC_OARM))}
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{$define FPC_ARMEL}
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{$endif}
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{$endif arm}
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{$ifdef m68k}
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{$define cpu32bit}
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{$define cpu32bitaddr}
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{$define cpu32bitalu}
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{$define cpuflags}
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{$define cpufpemu}
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{$endif m68k}
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{$ifdef avr}
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{$define cpu16bit}
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{$define cpu16bitaddr}
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{$define cpu16bitalu}
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{$define cpuflags}
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{$define cpunofpu}
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{$define cpunodefaultint}
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{$endif avr}
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{$IFDEF MACOS}
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{$DEFINE USE_FAKE_SYSUTILS}
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{$ENDIF MACOS}
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{$define SUPPORT_UNALIGNED}
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{$if not defined(cpui386) and defined(i386)}
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{$error Cross-compiling from non-i386 to i386 is not yet supported at this time }
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{$endif}
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