inner loops, see for example colour_registers. According to profile data
this causes fillchar to be the most time consuming procedure.
Some modifications done to make it clear less than 8kb of memory each
call. Divides time spent in fillchar by two, but it still is the no.1
procedure.
+ refaddr to treference added
+ refsymbol to treference added
* top_local stuff moved to an extra record to save memory
+ aint introduced
* tppufile.get/putint64/aint implemented
- Worklist no longer a ringbuffer
- No find operations are left
- Simplify now done in constant time
- unusedregs is now a Tsuperregisterworklist
- Microoptimizations
* started to fix ppc, needs an overhaul
+ stabs info improve for spilling, not sure if it works correctly/completly
- MMX_SUPPORT removed from Makefile.fpc
* procinfo renamed to current_procinfo
* procinfo will now be stored in current_module so it can be
cleaned up properly
* gen_main_procsym changed to create_main_proc and release_main_proc
to also generate a tprocinfo structure
* fixed unit implicit initfinal
a new procdef declaration
* aktprocsym removed
* lexlevel removed, use symtable.symtablelevel instead
* implicit init/final code uses the normal genentry/genexit
* funcret state checking updated for new funcret handling
and aliases for result and function name are added using absolutesym
* vs_hidden parameter for funcret passed in parameter
* vs_hidden fixes
* writenode changed to printnode and released from extdebug
* -vp option added to generate a tree.log with the nodetree
* nicer printnode for statements, callnode
offset seems now to be calculated correctly and a lot of duplicate
calculations have been removed. Nested functions accessing the parent's
function result don't work at all though :(
* asmsymbollist global is removed and moved into a new class
tasmlibrarydata that will hold the info of a .a file which
corresponds with a single module. Added librarydata to tmodule
to keep the library info stored for the module. In the future the
objectfiles will also be stored to the tasmlibrarydata class
* all getlabel/newasmsymbol and friends are moved to the new class
+ first parameter offset in stack now portable
* rename some constants
+ move some cpu stuff to other units
- remove unused constents
* fix stacksize for some targets
* fix generic size problems which depend now on EXTEND_SIZE constant
* LOC_CONSTANT added for better constant handling
* secondadd splitted in multiple routines
* location_force_reg added for loading a location to a register
of a specified size
* secondassignment parses now first the right and then the left node
(this is compatible with Kylix). This saves a lot of push/pop especially
with string operations
* adapted some routines to use the new cg methods
* register allocation is now handled by a class and is mostly processor
independent (+rgobj.pas and i386/rgcpu.pas)
* temp allocation is now handled by a class (+tgobj.pas, -i386\tgcpu.pas)
* some small improvements and fixes to the optimizer
* some register allocation fixes
* some fpuvaroffset fixes in the unary minus node
* push/popusedregisters is now called rg.save/restoreusedregisters and
(for i386) uses temps instead of push/pop's when using -Op3 (that code is
also better optimizable)
* fixed and optimized register saving/restoring for new/dispose nodes
* LOC_FPU locations now also require their "register" field to be set to
R_ST, not R_ST0 (the latter is used for LOC_CFPUREGISTER locations only)
- list field removed of the tnode class because it's not used currently
and can cause hard-to-find bugs
related things) to processor independent code (in new ncgflw unit)
+ generic cgobj unit which contains lots of code generator helpers with
global "cg" class instance variable
+ cgcpu unit for i386 (implements processor specific routines of the above
unit)
* updated cgbase and cpubase for the new code generator units
* include ncgflw unit in cpunode unit
