+ use {$bitpacking on/+} to change the meaning of "packed"
into "bitpacked" for arrays. This is the default for MacPas.
You can also define individual arrays as "bitpacked", but
this is not encouraged since this keyword is not known by
other compilers and therefore makes your code unportable.
+ pack(unpackedarray,index,packedarray) to pack
length(packedarray) elements starting at
unpackedarray[index] into packedarray.
+ unpack(packedarray,unpackedarray,index) to unpack
packedarray into unpackedarray, with the first
element being stored at unpackedarray[index]
* todo:
* "open packed arrays" and rtti for packed arrays are not
yet supported
* gdb does not properly support bitpacked arrays
git-svn-id: trunk@4449 -
and 4080. The compatibility differences are:
a) writing a chararray which is zero-based but not zero-
terminated does not cause a buffer overflow
b) non-zero-based chararrays can also be read
The difference was that previously, all chararrays were treated
as pchars. In TP/Delphi (and now also in FPC), this is only done
for zero-based chararrays. For non-zero-based ones, the entire
contents of the array should always be used (including #0's).
The default parameters in the system unit for the chararray
helpers are to avoid having to use a define for bootstrapping.
git-svn-id: trunk@2152 -
vs_written, vs_readwritten. vs_initialised is the old vs_assigned;
vs_used has been replaced by vs_read, vs_written and vs_readwritten
* the valid_for_*() routines in htypechk now get an extra parameter to
decide whether or not errors should be reported
git-svn-id: trunk@1913 -
assigning the value after an addn
* for inc(pointer,X) convert X to sinttype instead of ptrinttype
to support also negative values of X
git-svn-id: trunk@587 -
* proc to procvar moved from addrnode to typeconvnode
* inlininginfo is now allocated only for inline routines that
can be inlined, introduced a new flag po_has_inlining_info
tree
+ support for inlining value and const parameters at the node level
(all procedures without local variables and without formal parameters
can now be inlined at the node level)
* put temps for withnodes and some newnodes in registers
Note: this currently only works because calling ungetregister()
multiple times for the same register doesn't matter. We need again
a way to specify that a register is currently a regvar and as such
should not be freed when you call ungetregister() on it.
* 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
* fixed inlining of write()
* switched statementnode left and right parts so the statements are
processed in the correct order when getcopy is used. This is
required for tempnodes
- -V option for generating bug report tracing
- more tracing for option parsing
- errors for cdecl and high()
- win32 import stabs
- win32 records<=8 are returned in eax:edx (turned off by default)
- heaptrc update
- more info for temp management in .s file with EXTDEBUG
* Moved pocall_internconst to po_internconst because it is not a
calling type at all and it conflicted when inlining of these small
functions was requested
* foreach gets extra argument for passing local data to the
iterator function
* -CR checks also class typecasts at runtime by changing them
into as
* fixed compiler to cycle with the -CR option
* fixed stabs with elf writer, finally the global variables can
be watched
* removed a lot of routines from cga unit and replaced them by
calls to cgobj
* u32bit-s32bit updates for and,or,xor nodes. When one element is
u32bit then the other is typecasted also to u32bit without giving
a rangecheck warning/error.
* fixed pascal calling method with reversing also the high tree in
the parast, detected by tcalcst3 test
* 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
* 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)
- removed all code from the compiler which has been replaced by
compilerproc implementations (using {$ifdef hascompilerproc} is not
necessary in the compiler)
fpc_<stringtype>_longint
* fixed small bug in handle_read_write that caused wrong warnigns about
uninitialized vars with read(ln)
+ handle_val (processor independent val() handling)
resulttype and first pass)
* made handling of read(ln)/write(ln) processor independent
* moved processor independent handling for str and reset/rewrite-typed
from firstpass to resulttype pass
* changed names of helpers in text.inc to be generic for use as
compilerprocs + added "iocheck" directive for most of them
* reading of ordinals is done by procedures instead of functions
because otherwise FPC_IOCHECK overwrote the result before it could
be stored elsewhere (range checking still works)
* compilerprocs can now be used in the system unit before they are
implemented
* added note to errore.msg that booleans can't be read using read/readln
