* disable matching volatile references in the assembler optimisers, so they
can't be removed (more conservative than needed, but better than removing
too many)
o the CSE optimiser will ignore them by default, because they're an unknown
inline node for it
* also removed no longer used fpc_in_move_x and fpc_in_fillchar_x inline node
identifiers from rtl/inc/innr.inc, and placed fpc_in_unaligned_x at the
right place
git-svn-id: trunk@40465 -
so that they can still be freed after the reference has been changed
(e.g. in case of array indexing or record field accesses) (mantis #33628)
git-svn-id: trunk@38814 -
* compinnr.inc include file converted to a unit
* inline number field size stored in ppu increased from byte to longint
* inlines in the parse tree (when written with the -vp option) now printed with
their enum name, instead of number
git-svn-id: trunk@36174 -
less-than-64-bit CPUs that have a 64-bit OP_SHR/OP_SHL/OP_SAR implementation
in their cg64 backend code generator. This is enabled only for i386 for now.
git-svn-id: trunk@36022 -
be used (TBD in a future commit) for optimizing x:=-x and x:=not x on CPUs
that support performing these operations directly in memory (such as x86)
git-svn-id: trunk@35749 -
op=and/or/xor). They generate more optimal code on certain architectures
(including x86). The new inline nodes aren't generated by the compiler yet,
but will be used in the future, at certain optimization levels, whenever the
pattern x:=x op y is detected by the compiler.
git-svn-id: trunk@35666 -
o separate information for reading and writing, because e.g. in a
try-block, only the writes to local variables and parameters are
volatile (they have to be committed immediately in case the next
instruction causes an exception)
o for now, only references to absolute memory addresses are marked
as volatile
o the volatily information is (should be) properly maintained throughout
all code generators for all archictures with this patch
o no optimizers or other compiler infrastructure uses the volatility
information yet
o this functionality is not (yet) exposed at the language level, it
is only for internal code generator use right now
git-svn-id: trunk@34996 -
alignment of the resultdef rather than to 0 (required for llvm, and
cleaner since then the code generator knows the actual alignment)
git-svn-id: trunk@34296 -
loadvmtaddr and vmt_def
o give an error when trying to use sizeof on a class/object when
targeting the JVM (can't get/load the data size there)
git-svn-id: trunk@32764 -
sinttype (they're the same on most platforms, except on 8 bit ones where
ossinttype is still 16 bit)
* simplified and documented second_length(), and fixed some (harmless)
errors in the used tcgsize for the resultdef (it had to be OS_SINT
rather than OS_INT -- now it's just def_cgsize(resultdef) so it's
always correct)
git-svn-id: branches/hlcgllvm@28387 -
Currently it is implemented only for x86-CPUs supporting the FMA extension. While it would
be possible to implement it in software or simulate fma(<single>,<single>,<single>) using
double operations, it makes no sense in my opinion to do so.
git-svn-id: trunk@27564 -
Up until now a helperfunction was called at runtime. This change inlines
the whole code in the same way Length(AnsiString) works. As dynamic
arrays do not record their length but their highest index, an additional
"OP_ADD" is this case.
git-svn-id: trunk@25227 -
knows that the frame pointer needs to be available (and the code is also
much simpler this way), fixes test/units/system/tassert7 after r21843
git-svn-id: trunk@21869 -
The old code forced dst and src to be the same, which is highly x86
specific and creates bad register utilization on other architectures
like arm.
The new version will use more imaginary registers, allowing the register
allocator to do a better job.
I've merged second_sar and second_rox into a single procedure
second_rox_sar because they were very similar.
git-svn-id: trunk@21809 -
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 -
