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48 Commits

Author SHA1 Message Date
nickysn
1f8a9c708e * use RegistersInterfere instead of SuperRegistersEqual in TAoptBase.RegInOp and TAoptBase.RegInRef 
git-svn-id: trunk@45340 -
 2020-05-11 17:18:00 +00:00
nickysn
531cc0ab0d + introduced TAOptBase.RegistersInterfere (which might not always be equivalent to SuperRegistersEqual) 
git-svn-id: trunk@45339 -
 2020-05-11 16:00:27 +00:00
nickysn
5947adcd7b + added a correct implementation of TAOptBase.SuperRegistersEqual for the Z80 
git-svn-id: trunk@45337 -
 2020-05-11 14:21:26 +00:00
florian
872c22842e * do prefetching correctly 
* more prefetching inserted
  * unnecessary/wrong UpdateUsedRegs removed

git-svn-id: trunk@43878 -
 2020-01-06 20:59:24 +00:00
Jonas Maebe
ebd674d40e * fixed TAOptBase.SkipEntryExitMarker() not initialising out parameter in 
all cases (patch by J. Gareth Moreton, mantis #36372)

git-svn-id: trunk@43843 -
 2020-01-02 19:14:18 +00:00
florian
7e6eeebdf0 o patch by J. Gareth Moreton, seeks to improve maintainability, safety and efficiency 
in the peephole optimizer by slightly modifying some function headers based
    on their intended purpose, resolves #36353
    * Non-virtual methods and class methods that don't need to access any fields from
      the current object are now static methods, thus removing the hidden "Self"
      parameter and reducing overhead. This includes a large number of
      frequently-used functions such as SkipEntryExitMarker and SuperRegistersEqual.
    * GetNextInstruction, GetLastInstruction, SkipEntryExitMarker and
      SkipLabels have had their 'var' parameter changed to an 'out' parameter because
      they shouldn't depend on its input value. This will cause the compiler to throw warnings
      if you start using the value without initialising it first, and may open up optimisation
      opportunities in the future (e.g. storing written values in a temporary register
      and only writing it to the actual variable when the routine exits).

git-svn-id: trunk@43595 -
 2019-11-26 22:09:33 +00:00
florian
59d300fc6e * optimize TAOptBase.SuperRegistersEqual 
git-svn-id: trunk@43337 -
 2019-10-30 20:07:27 +00:00
florian
9230ae5aab o overhaul-base.patch by J. Gareth Moreton, base for further patches 
+ some inline directives added
  + some functions exported from units

git-svn-id: trunk@42722 -
 2019-08-17 16:14:22 +00:00
florian
7f286eb54e + define cpudelayslot: set during compiler compilation for CPUs having branch instructions with delay slot (MIPS, SPARC) 
git-svn-id: trunk@36958 -
 2017-08-20 17:20:38 +00:00
florian
f4718c0969 * made nop handling generic for sparc, so it is used by sparc64 as well 
git-svn-id: trunk@36814 -
 2017-07-29 20:06:14 +00:00
florian
b1dff29cbf * removed unused units 
git-svn-id: trunk@36165 -
 2017-05-09 19:53:14 +00:00
nickysn
9b7a8f0da5 + take into account the x86 segment register in TAOptBase.RegInRef 
git-svn-id: trunk@36078 -
 2017-05-04 14:08:00 +00:00
florian
bc73d0914e * TAOptBase.RegInRef compares using SuperRegistersEqual as TAOptBase.RegInOp does for top_reg already 
git-svn-id: trunk@34730 -
 2016-10-16 16:35:36 +00:00
florian
e6cea6622e * when checking if a register is used by an operand, compare the super registers 
git-svn-id: trunk@34720 -
 2016-10-15 15:03:26 +00:00
florian
b274599a47 * made some assembler optimizer methods class methods 
git-svn-id: trunk@33929 -
 2016-06-06 21:18:20 +00:00
florian
cfd49ec708 + TAOptBase.SuperRegistersEqual 
+ properly implemented TAOptObj.PrePeepHoleOpts
+ properly implemented TAOptObj.PeepHoleOptPass2

git-svn-id: trunk@33654 -
 2016-05-05 12:38:19 +00:00
florian
8b4a392863 * compilation fixed 
git-svn-id: trunk@33003 -
 2016-01-24 16:52:49 +00:00
florian
5aabe71aee * better throw an internalerror in TAoptBase.RegLoadedWithNewValue instead of trying to make a safe approximation 
git-svn-id: trunk@33002 -
 2016-01-24 16:24:45 +00:00
florian
1266491085 o refactored some peephole optimizer code: 
* updated TAOptObj.RegUsedAfterInstruction with the arm implementation and removed the arm specific implementation
  * RegLoadedWithNewValue and InstructionLoadsFromReg are now a methods of TAoptBase
  * moved RegEndOfLife to TAOptObj
* during this refactoring, fixed also TCpuAsmOptimizer.RegLoadedWithNewValue for arm regarding post/preindexed 
  memory references: those modify the register but do not load it with a new value in the sense of RegLoadedWithNewValue

git-svn-id: trunk@33000 -
 2016-01-24 15:25:16 +00:00
Jonas Maebe
3c7ad95f7d * simplified RegInInstruction() and fixed range errors 
git-svn-id: trunk@25950 -
 2013-11-06 10:46:22 +00:00
sergei
a5ae26da7e * Moved SkipEntryExitMarker method from ARM optimizer to the base one, since it is not target-dependent. Now it can be reused by other targets. 
git-svn-id: trunk@25738 -
 2013-10-10 21:12:49 +00:00
sergei
1c84c3edbf * Fixed label optimizer to work with MIPS, and enabled level 1 optimization for MIPS targets. 
The difference in branch instruction formats is isolated in function JumpTargetOp, it is a plain function rather than a virtual method, so it can be easily inlined and, after inlining, produces the same code for non-MIPS targets as it was before change.

git-svn-id: trunk@25033 -
 2013-07-03 14:40:24 +00:00
florian
ca5078f9cf + RegModifiedBetween 
git-svn-id: trunk@22216 -
 2012-08-23 21:03:14 +00:00
florian
0c08ae8553 + RegUsedBetween 
git-svn-id: trunk@22182 -
 2012-08-22 19:50:55 +00:00
masta
9825fbf554 Support top_shifterop and top_regset for arm in RegInOp 
RegInOp did not check for a register beeing part of a shifterop
(op.shifterop^.rs) which could result in trashed registers (But that did
not seem to happen yet anyway).

I've also implemented support for top_regset, but it is currently not
generated outside of proc_entry/proc_exit anyway.

git-svn-id: trunk@21808 -
 2012-07-06 21:33:22 +00:00
florian
d4c120cb34 * fix comment so it does not confuse lazarus 
git-svn-id: trunk@21305 -
 2012-05-15 18:07:25 +00:00
florian
748694a325 * fixes some issues with reg. allocation information 
git-svn-id: trunk@21303 -
 2012-05-15 18:06:41 +00:00
florian
2a6a4831ea * basics for generic register usage information 
git-svn-id: trunk@20886 -
 2012-04-15 14:20:47 +00:00
florian
2f5ce095ce * RefsHaveIndexReg -> cpurefshaveindexreg 
* cpurefshaveindexreg defined properly in fpcdefs.inc

git-svn-id: trunk@20504 -
 2012-03-10 19:43:52 +00:00
florian
8278271b4e * fix RegInInstruction 
+ introduce generic RegModifiedByInstruction

git-svn-id: trunk@20472 -
 2012-03-04 20:21:14 +00:00
florian
f97730f73f * use labelCanBeSkipped as used by i386 in generic optimizer code too 
git-svn-id: trunk@12807 -
 2009-02-27 13:03:12 +00:00
peter
658c46b903 * remove tdictionary and tindexarray 
* symtables based on TFPHashObjectList and TFPObjectList
  * rename torddef.typ to torddef.ordtype
  * rename tfloatdef.typ to tfloatdef.floattype
  * rename tdef.deftype to tdef.typ
  * remove obsolete browser code, browcol is kept so the ide
    can still be compiled

git-svn-id: trunk@5192 -
 2006-11-03 00:30:30 +00:00
peter
b7fe6797bf Merged revisions 2921-2922,2925 via svnmerge from 
http://svn.freepascal.org/svn/fpc/branches/linker/compiler

........
r2921 | peter | 2006-03-15 08:35:00 +0100 (Wed, 15 Mar 2006) | 2 lines

  * pass ObjectWriter to ObjectOuput

........
r2922 | peter | 2006-03-15 12:40:30 +0100 (Wed, 15 Mar 2006) | 2 lines

  * refactor asmdata

........
r2925 | peter | 2006-03-15 16:09:39 +0100 (Wed, 15 Mar 2006) | 3 lines

  * add cfi to asmdata
  * move asmlist, asmcfi, asmdata to own unit

........

git-svn-id: trunk@2932 -
 2006-03-16 08:52:22 +00:00
Jonas Maebe
ab5f5ca15e * fixed ppc compilation 
git-svn-id: trunk@2778 -
 2006-03-05 22:06:44 +00:00
Jonas Maebe
ab3bc45fa4 * cpu-specific overrides of optimizer methods now get called 
+ first simple rlwinm optimization for ppc

git-svn-id: trunk@1320 -
 2005-10-07 21:44:00 +00:00
fpc
790a4fe2d3 * log and id tags removed 
git-svn-id: trunk@42 -
 2005-05-21 09:42:41 +00:00
fpc
50778076c3 initial import 
git-svn-id: trunk@1 -
 2005-05-16 18:37:41 +00:00
peter
e417e34496 * truncate log 2005-02-14 17:13:06 +00:00
florian
054f6bff3a * fixed missing cgutils usage 2004-11-03 17:51:58 +00:00
peter
c95a859f0a * generic tlocation 
* move tlocation to cgutils
 2004-10-31 21:45:02 +00:00
florian
e04b172854 * fixed generic optimizer 
* enabled generic optimizer for sparc
 2004-10-30 15:21:37 +00:00
florian
8a9758c5e2 * logs truncated 2004-06-20 08:55:28 +00:00
florian
07783d2a0d * powerpc target fixed, very simple units can be compiled 
* some basic stuff for better callparanode handling, far from being finished
 2002-07-07 09:52:32 +00:00
peter
06ebac4e27 * readded missing revisions 2002-05-18 13:34:04 +00:00
carl
21b3a10f02 + defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand 
+ try to fix temp allocation (still in ifdef)
+ generic constructor calls
+ start of tassembler / tmodulebase class cleanup
 2002-05-16 19:46:34 +00:00
peter
2992e1819c * removed old logs and updated copyright year 2002-05-14 19:34:38 +00:00
peter
f6b3e2e37f * synchronized cpubase between powerpc and i386 
* moved more tables from cpubase to cpuasm
  * tai_align_abstract moved to tainst, cpuasm must define
    the tai_align class now, which may be empty
 2002-05-14 17:28:08 +00:00
florian
9746f4c2d6 * some cg reorganisation 
* some PPC updates
 2001-08-26 13:35:06 +00:00