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 -
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 -
* generate code to load the TOC register if it's required, and
emit the the ".localentry" directive to indicate to the linker
where the actual function body starts
* support the ".localentry" directive in the ppc64 assembler reader
o disable the fpc_qword_to_double() assembler implementation for
ELFv2, because we can't manually insert the .localentry directive
before the stack allocation code
* perform indirect calls on ppc64 via R12 in ncgcal, as R12 needs to
contain the function address on entry on ppc64/ELFv2 (and it's
a volatile register, so there's no problem with always using
it)
git-svn-id: trunk@30198 -
names, and disabled them for ppc64 ELFv2
* disabling those also disables the function descriptors, so use the
_CALL_ELF compiler variable to check whether there is in fact a
function descriptor
git-svn-id: trunk@30196 -
the stack pointer during the prolog. This was done previously in
tcg.g_proc_entry(), but that routine is called after register allocation
and hence has no influence. Also cleaned up the deallocation of that
register by moving the previously ifdef'd code to thlcgppcgen
(mantis #27634)
git-svn-id: trunk@30164 -
* "Shift" parameter for signed calculation changed from aint to byte, since it only holds values up to 63. It is consistent with unsigned routine.
git-svn-id: trunk@27883 -
o made all (non-abstract) tdef and tsym constructors virtual
o added c*def/c*sym classref types for every (non-abstract) t*def/t*sym
class
o added cpusym unit for every architecture that derives a tcpu*def/tcpu*sym
class from the base classes, and initialises the c*def/c*sym classes with
them. This is done so that the llvm target will be able to derive from
the tcpu*def/sym classes without umpteen ifdefs, and it also means that
the WPO can devirtualise everything because the c* variables are only
initialised with one class type
o replaced all t*def/t*sym constructor calls with c*def/c*sym constructor
calls
git-svn-id: trunk@27361 -
cgobj.pas, tcg:
* g_save_registers: add the amount of used address registers to size as well
* g_save_registers: save all used address registers
* g_restore_registers: restore all stored address registers
m68k/cpubase.pas:
* rename saved_standard_address_registers to saved_address_registers
all other platform's cpubase.{inc,pas} (except alpha, ia64 and vis which are not up to date):
* add a saved_address_registers variable with one entry of RS_INVALID
At least a "make fullcycle" did complete.
git-svn-id: trunk@25664 -
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 -
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 -
TRegNameTable is defined in compiler/rgbase.pas and is an array of
strings, limited to the maximum length of the used register names.
r22792 added a long register name but did not scale the string-size
enough, resulting in the compiler built breaking for arm.
git-svn-id: trunk@22817 -
like field reordering (possible problems cracker classes) or using ebp as normal register (broken
stack traces from dump_stack)
+ niln is also valid in a cse domain
* parameters passed by reference shall have a complexity >1
* load nodes from outer scopes shall have a complexity >1
* better cse debugging
+ more node types added to cse
* consider parameters passed by reference in cse
* take care of cse in parameters in simple cases
git-svn-id: trunk@22050 -
order to minimise memory losses due to alignment padding. Not yet enabled
by default at any optimization level, but can be (de)activated separately
via -Oo(no)orderfields
o added separate tdef.structalignment method that returns the alignment
of a type when it appears in a record/object/class (factors out
AIX-specific double alignment in structs)
o changed the handling of the offset of a delegate interface
implemented via a field, by taking the field offset on demand
rather than at declaration time (because the ordering optimization
causes the offsets of fields to be unknown until the entire
declaration has been parsed)
git-svn-id: trunk@21947 -
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 -
* 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 -
RS_INVALID superregister (instead of sometimes RS_NO and sometimes
RS_INVALID)
* check for RS_INVALID in tcg.g_save_registers() and ignore such entries
git-svn-id: trunk@21622 -
future use by high level code generator targets
o this in turn required that all a_load*_loc* methods are called via
hlcg rather than via cg, since a location can be a subsetref/reg and
and those are no longer handled in tcg
o that then required moving several force_location_* routines into
thlcg because they use a_load_loc*, but did not take tdef size
parameters (which are required by the thlcg a_load_loc* routines)
o the only practical consequence is that from now on, you have to
use hlcg.location_force_mem/reg() (fpureg not yet) and
hlcg.gen_load_loc_cgpara() instead of the removed versions from ncgutil,
and hlcg.a_load*loc*() instead of cg.a_load*loc* if a subsetref/reg
might be involved
git-svn-id: trunk@21287 -
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 -
