Commit Graph

67 Commits

Author SHA1 Message Date
Jonas Maebe
1e3f72403e * renamed getintparaloc to getcgtempparaloc
o it can be used for more than integer parameters

git-svn-id: trunk@43781 -
2019-12-24 22:12:25 +00:00
Jonas Maebe
a6a6c2cb07 * fixed size of base stack frame for ELFv2
git-svn-id: trunk@42835 -
2019-08-26 19:26:14 +00:00
Jonas Maebe
77658b925b * disable regular array -> dynamic array type coversion support unless
{$modeswitch arraytodynarray} is active (mantis #35576)
   o changed compiler to compile without this modeswitch
   o added the modeswitch to a test that depends on it

git-svn-id: trunk@42118 -
2019-05-25 12:31:32 +00:00
Jonas Maebe
281b3ad276 * fix case completeness and unreachable code warnings in compiler that would
be introduced by the next commit

git-svn-id: trunk@42046 -
2019-05-12 14:29:03 +00:00
Jonas Maebe
c7834af354 * track va_uses_float_reg also for varargs functions without varargs
parameters (see e.g. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23070 )

git-svn-id: trunk@41472 -
2019-02-25 21:02:14 +00:00
Jonas Maebe
8b9e90dc7a * keep track of whether a routine has a C-style variadic parameter in the
procoptions even when it's through an array-of-const parameter
  * always call create_varargs_paraloc_info() instead of create_paraloc_info()
    in the former case, even when no varargs parameters are specified (because
    on some platforms even some non-variadic parameters need to be passed
    differently, such as on ARM with gnueabihf)

git-svn-id: trunk@41420 -
2019-02-23 15:42:45 +00:00
nickysn
518cdf9674 * replaced the saved_XXX_registers arrays with virtual methods inside
tcpuparamanager, very similar to the existing get_volatile_registers_XXX. The
  new methods are called get_saved_registers_XXX, where XXX is the register
  type ("int", "address", "fpu" or "mm")

git-svn-id: trunk@38794 -
2018-04-19 21:22:16 +00:00
Jonas Maebe
4c68ea1000 * use pocalls_cdecl and cstylearrayofconst more consistently instead of
ad hoc set constants containing varying number cdecl-like calling
    conventions
   o added pocall_sysv_abi_cdecl and pocall_ms_abi_cdecl to cstylearrayofconst
   o also allow C-style blocks with mwpascal instead of cdecl (mwpascal = cdecl
     with "const" = "constref" for record parameters)
   o did not touch cases related to name mangling and import/export names,
     because those are a real mess and easily break things left and right :/

git-svn-id: trunk@35479 -
2017-02-25 11:46:35 +00:00
Jonas Maebe
880d438704 * renamed t<cpuname>procinfo to tcpuprocinfo for all targets, so we can
inherit from it for LLVM without a thousand ifdefs

git-svn-id: trunk@35141 -
2016-12-16 22:41:21 +00:00
Jonas Maebe
fa3b0ca312 * support marking defs created via the getreusable*() class methods as
"don't free even if not registered"; use for defs that may not be written
    to a ppu file, but that must nevertheless survive the compilation of the
    current module
  * mark all defs created for para locations as "don't free even if not
    registered", because we don't discard and recalculate all para locations
    after a module has been compiled (since that's not needed)
   o solves issues if the paralocations for a routine in the interface of
     unit A are calculated while the implementation of unit B gets
     compiled, and a new reusable type is allocated at that point which
     is not used anywhere else (after r32160)

git-svn-id: trunk@32235 -
2015-11-04 20:46:18 +00:00
Jonas Maebe
f402b0d7df * changed getpointerdef() into a tpointerdef.getreusable() class method
o allows removing the ugly x86 hacks

git-svn-id: trunk@31144 -
2015-06-22 08:17:49 +00:00
florian
b4fc11fe06 * implemented r30870 for all platforms: pass dyn. array parameters like pointer parameters so typically in a register
git-svn-id: trunk@30878 -
2015-05-17 12:29:28 +00:00
Jonas Maebe
61e4a1b811 + added tasmlist parameter to getintparaloc() (needed for llvm)
git-svn-id: trunk@30429 -
2015-04-04 14:29:16 +00:00
Jonas Maebe
a30f0bc289 * fixed -Oodfa warnings
git-svn-id: branches/hlcgllvm@30350 -
2015-03-28 12:28:21 +00:00
Jonas Maebe
bd203a5b57 * synchronised with trunk till r30240
git-svn-id: branches/hlcgllvm@30241 -
2015-03-15 19:44:58 +00:00
Jonas Maebe
6230119140 - removed self-assignment of cur_stack_offset introduced by refactoring in
r30221

git-svn-id: trunk@30230 -
2015-03-14 21:55:48 +00:00
Jonas Maebe
cea2741339 * correct paraloc size for 3-byte records passed in the lower bits of a
register (32 bit instead of 64 bit register)

git-svn-id: trunk@30222 -
2015-03-14 18:36:43 +00:00
Jonas Maebe
3d6fcd8815 + ppc64le/ELFv2 ret_in_param implementation
* fixed ret_in_param for other ppc64 ABIs

git-svn-id: trunk@30221 -
2015-03-14 18:36:40 +00:00
Jonas Maebe
a02fb7c794 * fixed misplaced braces that caused all records to be passed by reference
on ppc64 with the mwpascal calling convention, instead of only the const
    ones

git-svn-id: trunk@30219 -
2015-03-14 18:36:35 +00:00
Jonas Maebe
3d9713b9c8 * has_single_field() now looks recursively into fields that are aggregate
types until it finds a non-aggregate type, and then returns "true" if
    that aggregate (record or array) contains one element
  * it now also returns the type of that element directly rather than a
    tfieldvarsym, since we only care about the type and in case of an array
    there is no field

git-svn-id: trunk@30205 -
2015-03-14 18:35:53 +00:00
Jonas Maebe
9788b01d31 * rewrote most of the special case handling of parameter passing on ppc64,
documenting the pecularities of the various calling conventions and
    marking what we do and don't support currently
  * also handle arrays for the ELFv2 ABI when determining whether an aggregate
    only contains floating values of a single type

git-svn-id: trunk@30203 -
2015-03-14 18:35:47 +00:00
Jonas Maebe
25340480b0 * factored out creating a single paraloc, so we can reuse it for creating
function return locations

git-svn-id: trunk@30201 -
2015-03-14 18:35:41 +00:00
Jonas Maebe
f0ee1a9ee3 * pass records that (recursively) only contain floating point values of the
same type (even in other records or in arrays), with 8 or less such
    values, as if those values were passed individually on ppc64/ELFv2

git-svn-id: trunk@30200 -
2015-03-14 18:35:38 +00:00
Jonas Maebe
99de108c68 * renamed all paramanagers to tcpuparamanager so the llvm paramanager can
derive from them without ifdefs

git-svn-id: branches/hlcgllvm@26039 -
2013-11-11 11:15:27 +00:00
Jonas Maebe
7f2750f188 * missing part of r24776, using a build server also has pitfalls :/
git-svn-id: trunk@24777 -
2013-06-02 14:35:29 +00:00
Jonas Maebe
9938169d2c * don't use the paracgsize in get_paraloc_def(), because it generally
contains the tcgsize of the entire parameter rather than only of
    what is left (-> calculate it from the remaining parameter length)

git-svn-id: trunk@24776 -
2013-06-02 14:05:07 +00:00
Jonas Maebe
7566ddcc8f * add a tdef to each parameter location and set it for all target
backends (not yet used, will be used in high level code generator)

git-svn-id: trunk@24761 -
2013-06-02 10:24:02 +00:00
Jonas Maebe
69c29a415f * pass the procdef to getintparaloc instead of only the proccalloption, so
that the type of the parameters can be determined automatically
   o added compilerproc declarations for all helpers called in the compiler
     via their assembler name, so we can look up the corresponding procdef

git-svn-id: trunk@23325 -
2013-01-06 15:05:40 +00:00
florian
7ac9f11cc7 * check if current_procinfo is assigned in paramanager code to avoid crashes
git-svn-id: trunk@23303 -
2013-01-03 23:00:03 +00:00
Jonas Maebe
0a1157da38 * fixed memory leaks in the compiler introduced in r21862 by marking and
releasing temporarily created function result locations

git-svn-id: trunk@21953 -
2012-07-23 13:49:29 +00:00
Jonas Maebe
7a0ae38700 + also specify the parameter def when allocating a parameter via
getintparaloc + adapted all call sites of getintparaloc. This
    led to a number of additional, related changes:
   o corrected the type information for some getintparaloc parameters
   o don't allocate some intparalocs in cases they aren't used
   o changed "const tvardata" parameter into "constref tvardata" for
     fpc_variant_copy_overwrite to make pass-by-reference semantics
     explicit
   o moved a number of routines that now have to call find_system_type()
     from cgobj to hlcgobj so that cgobj doesn't have to start depending
     on the symtable unit
   o added versions of the cpureg alloc/dealloc methods to hlcgobj that
     call through to their cgobj counter parts, so we can call save/restore
     the cpu registers before/after calling system helpers from hlcgobj
     (not implemented in hlcgobj itself, because all basic register
      allocator functionality is still part of cgobj/cgcpu)

git-svn-id: trunk@21696 -
2012-06-24 15:02:12 +00:00
Jonas Maebe
c3ea451aea * set tcgpara.vardef when creating parameter info
git-svn-id: trunk@21693 -
2012-06-24 15:01:54 +00:00
Jonas Maebe
2d48396587 - removed redundant checks
git-svn-id: trunk@21692 -
2012-06-24 15:01:48 +00:00
Jonas Maebe
587244c088 * factored out common code from get_funcretloc()
* set tcgpara.def for the function return location (field introduced for and
    already used by the JVM code generator, required for future hlcg
    functionality)

git-svn-id: trunk@21691 -
2012-06-24 15:01:42 +00:00
Jonas Maebe
d08a17b763 * AIX requires record data that partially fills a register to be
left-aligned. Other targets only require this if the total size of the
    parameter was > 8 bytes (this last part used to be ensured by
    the ppc64-specific version of a_load_ref_cgpara() that was removed in
    r20962)

git-svn-id: trunk@21008 -
2012-04-23 21:14:38 +00:00
Jonas Maebe
426d44905e * add symtable to uses clause for tabstractsymtable, part of r20967
(fixes powerpc64 compiler compilation)

git-svn-id: trunk@20981 -
2012-04-22 10:41:02 +00:00
Jonas Maebe
5dac788b71 * use tabstractrecordsymtable.has_single_field() to determine whether a
record has only a single field (and if so, which one) when checking
    whether we have to treat the record as if it was actually its first
    field that's passed as a parameter (fixes problems with records
    with methods, e.g. crash while compiling tests/test/trhlp35)

git-svn-id: trunk@20967 -
2012-04-21 20:18:08 +00:00
Jonas Maebe
8c27e280e9 * pocall_mwpascal is the same as cdecl/cppdecl -> handle it the same for
varargs

git-svn-id: trunk@20947 -
2012-04-20 21:23:01 +00:00
joost
07bf44517c * Merged XPCom branch into trunk, added support for constref and changed
the IInterface implementation to be XPCom-compatible
--- Merging r15997 through r16179 into '.':
U    rtl/inc/variants.pp
U    rtl/inc/objpash.inc
U    rtl/inc/objpas.inc
U    rtl/objpas/classes/persist.inc
U    rtl/objpas/classes/compon.inc
U    rtl/objpas/classes/classesh.inc
A    tests/test/tconstref1.pp
A    tests/test/tconstref2.pp
A    tests/test/tconstref3.pp
U    tests/test/tinterface4.pp
A    tests/test/tconstref4.pp
U    tests/webtbs/tw10897.pp
U    tests/webtbs/tw4086.pp
U    tests/webtbs/tw15363.pp
U    tests/webtbs/tw2177.pp
U    tests/webtbs/tw16592.pp
U    tests/tbs/tb0546.pp
U    compiler/sparc/cpupara.pas
U    compiler/i386/cpupara.pas
U    compiler/pdecsub.pas
U    compiler/symdef.pas
U    compiler/powerpc/cpupara.pas
U    compiler/avr/cpupara.pas
U    compiler/browcol.pas
U    compiler/defcmp.pas
U    compiler/powerpc64/cpupara.pas
U    compiler/ncgrtti.pas
U    compiler/x86_64/cpupara.pas
U    compiler/opttail.pas
U    compiler/htypechk.pas
U    compiler/tokens.pas
U    compiler/objcutil.pas
U    compiler/ncal.pas
U    compiler/symtable.pas
U    compiler/symsym.pas
U    compiler/m68k/cpupara.pas
U    compiler/regvars.pas
U    compiler/arm/cpupara.pas
U    compiler/symconst.pas
U    compiler/mips/cpupara.pas
U    compiler/paramgr.pas
U    compiler/psub.pas
U    compiler/pdecvar.pas
U    compiler/dbgstabs.pas
U    compiler/options.pas
U    packages/fcl-fpcunit/src/testutils.pp

git-svn-id: trunk@16180 -
2010-10-17 20:58:22 +00:00
Jonas Maebe
f13f6627c4 * moved use_fixed_stack from cgutils to a method in paramgr so it can
be used outside the code generator
  * renamed tabstractprocdef.requiredargarea into callerargareasize,
    and also added calleeargareasize field; added init_paraloc_info(side)
    method to init the parameter locations and init those size fields and
    replaced all "if not procdef.has_paraloc_info then ..." blocks with
    procdef.init_paraloc_info(callersize)"
  * moved detection of stack tainting parameters from psub to
    symdef/tabstractprocdef
  + added tcallparanode.contains_stack_tainting_call(), which detects
    whether a parameter contains a call that makes use of stack paramters
  * record for each parameter whether or not any following parameter
    contains a call with stack parameters; if not, in case the current
    parameter itself is a stack parameter immediately place it in its
    final location also for use_fixed_stack platforms rather than
    first putting it in a temporary location (part of mantis #17442)
  * on use_fixed_stack platforms, always first evaluate parameters
    containing a stack tainting call, since those force any preceding
    stack parameters of the current call to be stored in a temp location
    and copied to the final location afterwards

git-svn-id: trunk@16050 -
2010-09-26 21:24:14 +00:00
Jonas Maebe
57bd6d2685 + merged nestedprocvars branch
+ support for nested procedural variables:
    o activate using {$modeswitch nestedprocvars} (compatible with all
      regular syntax modes, enabled by default for MacPas mode)
    o activating this mode switch changes the way the frame pointer is
      passed to nested routines into the same way that Delphi uses (always
      passed via the stack, and if necessary removed from the stack by
      the caller) -- Todo: possibly also allow using this parameter
      passing convention without enabling nested procvars, maybe even
      by default in Delphi mode, see mantis #9432
    o both global and nested routines can be passed to/assigned to a
      nested procvar (and called via them). Note that converting global
      *procvars* to nested procvars is intentionally not supported, so
      that this functionality can also be implemented via compile-time
      generated trampolines if necessary (e.g. for LLVM or CIL backends
      as long as they don't support the aforementioned parameter passing
      convention)
    o a nested procvar can both be declared using a Mac/ISO Pascal style
      "inline" type declaration as a parameter type, or as a stand-alone
      type (in the latter case, add "is nested" at the end in analogy to
      "of object" for method pointers -- note that using variables of
      such a type is dangerous, because if you call them once the enclosing
      stack frame no longer exists on the stack, the results are
      undefined; this is however allowed for Metaware Pascal compatibility)

git-svn-id: trunk@15694 -
2010-08-02 22:20:36 +00:00
Jonas Maebe
283018a3bf * changed tprocdef.funcretloc[] from a tlocation into a tcgpara so it can
represent complex locations (required for full x86-64 ABI support,
    which is not yet implemented) -> lots of special result handling
    code has been removed and replaced by the parameter handling
    routines
  + added support for composite parameters (and hence function
    results) to tcg.a_load_ref_cgpara() (so it can be used for
    handling, e.g., 64 bit parameters on 32 bit platforms)
  * the above fixed writing past the end of allocated memory when
    handling records returned in registers on x86-64 whose size is
    not a multiple of 8 bytes (mantis #16357)
  - removed the x86-64 and PPC specific versions of a_load_ref_cgpara(),
    as they are now handled correctly by the generic version
  * moved the responsibility of allocating tcgpara cpu registers
    (using paramanager.allocparaloc()) from the callers of
    cg.a_load*_cgpara() to the cg.a_load*_cgpara() methods
    themselves (so the register allocation can be done efficiently
    when dealing with function results)
  * for the above, renamed paramanager.alloc/freeparaloc() to
    paramanager.alloc/freecgpara(), and use paramanager.allocparaloc()
    to allocate individual pcgparalocations instead
  * fixed the register size of SSE2 function result registers for
    x86-64 (when used for floating point), which results in removing
    a few superfluous "movs? %xmm0,%xmm0" instructions
  * fixed compilation of paramanagers of avr, m68k and mips after r13695
    and also updated them for these new changes

git-svn-id: trunk@15350 -
2010-05-30 21:12:57 +00:00
Jonas Maebe
62c1781bea + mw_pascal calling convention support for ARM, ppc64 and x86_64: identical
to cdecl, except that all const record parameters are passed by reference
    (required for Mac OS X interfaces)

git-svn-id: trunk@14114 -
2009-11-08 13:42:11 +00:00
Jonas Maebe
cc5aeb09de * fixed handling the result value of functions where the result type is
forced to something else by the compiler (internal rtl functions etc),
    necessary for the objc branch
  * fixed adding all used function result registers to the list of
    registers that may need to be saved before a function call

git-svn-id: trunk@13695 -
2009-09-12 12:21:34 +00:00
Jonas Maebe
34c985cfa6 * added register type parameter to cgsize2subreg(), as the subreg can
depend on that (and correct a number of cases where this was wrong)
  * set the correct subreg type for xmm x86_64 parameter registers
    (resolved mantis #14067)

git-svn-id: trunk@13410 -
2009-07-19 13:57:23 +00:00
peter
8f239d04b6 * cleanup and simplify the set type handling
git-svn-id: trunk@10432 -
2008-03-02 17:48:27 +00:00
Jonas Maebe
f36e5411af * split cpu64bit compiler define into
a) cpu64bitaddr, which means that we are generating a compiler which
       will generate code for targets with a 64 bit address space/abi
    b) cpu64bitalu, which means that we are generating a compiler which
       will generate code for a cpu with support for 64 bit integer
       operations (possibly running in a 32 bit address space, depending
       on the cpu64bitaddr define)
   All cpus which had cpu64bit set now have both the above defines set,
   and none of the 32 bit cpus have cpu64bitalu set (and none will
   compile with it currently)
  + pint and puint types, similar to aint/aword (not pword because that
    that conflicts with pword=^word)
  * several changes from aint/aword to pint/pword
  * some changes of tcgsize2size[OS_INT] to sizeof(pint)

git-svn-id: trunk@10320 -
2008-02-13 20:44:00 +00:00
Jonas Maebe
22f616d6af * treat procvardef parameters the same as records (fixes webtbs/tw9141)
* fixed some issues with 16 byte parameters on both ppc and ppc64

git-svn-id: trunk@8389 -
2007-09-06 17:35:50 +00:00
yury
3b7e458f02 * Properly set location of float return value if it is passed as var parameter (it is always happens for safecall functions). It fixes bugs #8523 and #8977.
+ test.

git-svn-id: trunk@7728 -
2007-06-18 23:23:46 +00:00
Jonas Maebe
544dd57a96 * r0 is also volatile
git-svn-id: trunk@7262 -
2007-05-04 16:52:26 +00:00