* 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
* fixed bug in n386add (introduced after compilerproc changes for string
operations) where calcregisters wasn't called for shortstring addnodes
* NOTE: from now on, the location of a binary node must now always be set
before you call calcregisters() for it
* changed ninl and nadd to use these functions
* i386 set comparison functions now return their results in al instead
of in the flags so that they can be sued as compilerprocs
- removed all processor specific code from n386add.pas that has to do
with set handling, it's now all done in nadd.pas
* fixed fpc_set_contains_sets in genset.inc
* fpc_set_in_byte is now coded inline in n386set.pas and doesn't use a
helper anymore
* some small fixes in compproc.inc/set.inc regarding the declaration of
internal helper types (fpc_small_set and fpc_normal_set)
* changed the declaration of some set helpers somewhat to accomodate the
above change
* i386 still uses the old code for comparisons of sets, because its
helpers return the results in the flags
* dummy tc_normal_2_small_set type conversion because I need the original
resulttype of the set add nodes
NOTE: you have to start a cycle with 1.0.5!
to the way the shortstring helpers for i386 are written, they are
still handled by the old code (reason: fpc_shortstr_compare returns
results in the flags instead of in eax and fpc_shortstr_concat
has wierd parameter conventions). The compilerproc stuff should work
fine with the generic implementations though.
* removed some nested comments warnings
+ nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
and constant strings/chars together
* n386add.pas: don't copy temp strings (of size 256) to another temp string
when adding
