assignment, report correct column for potential range errors of
call parameters)
* refactored code to check potential range check errors (check_ranges
in htypechk)
git-svn-id: trunk@2501 -
* proper uninitialized checking for arrays
* first check uninitialized status of right side of assignment
before setting the left side to "written" (-> catch "x:=x" if
x is uninitialized)
git-svn-id: trunk@2038 -
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vs_used has been replaced by vs_read, vs_written and vs_readwritten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 -
* 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
* tregisteralloctor renamed to trgobj
* removed rgobj from a lot of units
* moved location_* and reference_* to cgobj
* first things for mmx register allocation
method. Useful to use instead of copying the contents from one temp to
another
+ some shortstring optimizations in tassignmentnode that avoid some
copying (required some shortstring optimizations to be moved from
resulttype to firstpass, because they work on callnodes and string
addnodes are only changed to callnodes in the firstpass)
* allow setting/changing the funcretnode of callnodes after the
resulttypepass has been done, funcretnode is now a property
(all of the above should have a quite big effect on callparatemp)
* ppc get/freeintparaloc now check whether the parameter regs are
properly allocated/deallocated (and get an extra list para)
* ppc a_call_* now internalerrors if pi_do_call is not yet set
* fixed lot of missing pi_do_call's
* 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
+ Add for loop code optimization using notifications
results in 1.5-1.9% speed improvement in nestloop benchmark
Optimization incomplete, compiler does not cycle yet with
notifications enabled.
- -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
+ Added read/write notifications of variables. These will be usefull
for providing information for several optimizations. For example
the value of the loop variable of a for loop does matter is the
variable is read after the for loop, but if it's no longer used
or written, it doesn't matter and this can be used to optimize
the loop code generation.
* symtable.insertvardata/insertconstdata added
* removed insert_in_data call from symtable.insert, it needs to be
called separatly. This allows to deref the address calculation
* procedures now calculate the parast addresses after the procedure
directives are parsed. This fixes the cdecl parast problem
* push_addr_param has an extra argument that specifies if cdecl is used
or not
* 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
* The whilen and repeatn are now completely unified into whilerepeatn. This
allows the state tracker to change while nodes automatically into
repeat nodes.
* Resulttypepass improvements to the notn. 'not not a' is optimized away and
'not(a>b)' is optimized into 'a<=b'.
* Resulttypepass improvements to the whilerepeatn. 'while not a' is optimized
by removing the notn and later switchting the true and falselabels. The
same is done with 'repeat until not a'.
* 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
inlined from pexpr
* -an option that will write the secondpass nodes to the .s file, this
requires EXTDEBUG define to actually write the info
* fixed various internal errors and crashes due recent code changes
* 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
+ 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
