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 -
pint type, which is now deprecated (as it does not always represent the
correct pointer type in all i8086 memory models); replacements methods, which
should be used instead are .create_sizeint, .create_int_dataptr or
.create_int_codeptr (or their _unaligned counterparts)
git-svn-id: trunk@34838 -
create constants, corresponding to the SizeInt type for the current target and
are intended to eventually replace .Create_pint, since the pint type is now
deprecated (because it does not correspond to the size of a pointer in certain
i8086 memory models).
git-svn-id: trunk@34620 -
tasmdata.DefineAsmSymbol() and all routines that call it
o will be used to automatically generate AB_INDIRECT sybols when
necessary
git-svn-id: trunk@34164 -
compiler's internal assembly representation. It is not yet generated by the
compiler and is only implemented properly in the NASM writer (but will
eventually be implemented in the other assembler writers as well, including
the internal assembler). In the future, it is intended to allow:
1) catching instructions, generated by the compiler and not supported by the
target CPU, due to a bug in the code generator
2) allowing a different instruction set to be used in inline asm blocks (I'm
planning a new directive for that - {$asmcpu XXX}), because the code
generator will be able to switch target CPU in the middle of the asm output
stream
git-svn-id: trunk@33121 -
* 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 -
backend (required for inserting bitcasts/ptrtoint/... operations inside
typed constant declarations)
o taillvm constructors for creating bitcast-style and getlementptr
operations that accept a tai as their source/base operand
git-svn-id: branches/hlcgllvm@28112 -
to free up space for more ait_* types in taitype (can't have
more than 32 because they have to fit in a small set)
o factored out writing of floating point numbers as an array of
byte in the external assemblers
git-svn-id: branches/hlcgllvm@28105 -
