differentiate between 64 bit and 128 bit (R_SUBMMWHOLE) SSE vector regs,
and support spilling/assembling for R_SUBQ SSE registers (8 bytes)
(mantis #23962)
We currently never use the full 128 bit of an SSE register, and
spilling for those hasn't been implemented yet either (R_SUBMMWHOLE
SSE regs are spilled into a 4-byte temp currently -> can overwrite data)
git-svn-id: trunk@23700 -
* If possible, use reference base instead of index, this yields shorter instructions.
* Added comment about offset limits for rip-relative addressing.
- Removed code related to taking threadvar address on win32, it is incorrect because Windows TLS is not directly accessible via segment registers (fs:0x2c points to array of pointers to TLS storages of each module, so at least double indirection is needed).
git-svn-id: trunk@23342 -
symbols on darwin/ppc and darwin/i386, and also for common symbols on
darwin/ppc, as they're not required for other kinds of symbols on those
platforms (gcc doesn't use them either with -O1 and higher; it does use
them always for darwin/ppc64 except for local symbols, and hence so do we)
git-svn-id: trunk@22271 -
after all, although for some reason the problems only showed up with the
external assembler on x86-64 platforms other than Darwin. Now we never use
GOT entries on x86-64 anymore for local symbols, regardless of their nature,
and instead use plain RIP-relative addressing for them.
git-svn-id: trunk@21924 -
fist(t)pq instructions (mantis #22331)
* also internalerror in case the internal fpu stack position counter
becomes larger than 7, so we don't have to wait for the entire
byte to overflow before we detect a problem
git-svn-id: trunk@21734 -
pass on whether the symbol refers to code or data (important for
AIX weak symbols; note that AIX does not support undefined weak
external symbols, and FPC does not yet support weakly defining
non-external symbols, so this functionality isn't really used yet)
git-svn-id: trunk@20802 -
* Insert seh_endprologue directive after the last prologue instruction, not before it
* Omit seh_stackalloc for zero bytes
* (For now) ignore SEH directives in NASM and MASM writers, instead of failing with internal error.
git-svn-id: trunk@19246 -
* For now placed actual processing of unwind info under {$ifdef TEST_WIN64_UNWIND}, because in the current state it doesn't add much value.
git-svn-id: trunk@19200 -
relocations for addr_pic_no_got references (do not go via the GOT)
* fixed code generator so that it generates addr_pic_no_got references
also for platforms that use the internal assembler (this will break linking
of some tests that check static data > 2GB on Linux/x86-64, but they were
already broken before as well because we don't use the "huge" x86-64
execution model)
* fixed x86-64 Linux syscall code to not expect GOT-based relocations for
the system unit's errno variable (it's an implementation-only variable)
git-svn-id: trunk@16717 -
later: the same as i386/darwin, except
a) uses the non-fragile Objective-C ABI/runtime
b) does not require stubs for direct calls/jumps (not required for
i386/darwin under 10.6 and later either, but still generated
there for backwards compatibility)
c) only the same packages are enabled as for ARM/Darwin
d) MacOSAll is compiled specifically for the iPhoneSimulator SDK
This target also defines the symbol "darwin" apart from the target
name "iphonesim" for source code compatibility reasons.
git-svn-id: trunk@16065 -
- sort of reverted r14134, which is no longer required after the above
change (new_section() inserts the alignment itself)
* made the tai_section.create() constructor private so it cannot be
called directly anymore
git-svn-id: trunk@15482 -
used to store a record function result in an MM/FPUREGISTER to memory
(the register size will be OS_F32/OS_F64, while the memory size will
be OS_32/OS_64 -> convert the latter to the former)
* extended tcalext6 to also test this scenario
git-svn-id: trunk@15385 -
because on linux/x86_64
a) the resulting code crashes when using the internal assembler
b) refuses to link when using the external assembler
(and hence I don't know whether it's safe to do on other non-darwin
platforms either) -- fixes mantis #15889
git-svn-id: trunk@14971 -
* the objc unit links against the Foundation instead of against the Cocoa
framework, and inludes an interface to either the fragile or non-fragile
obj-c run time depending on the target platform
+ support for the non-fragile Objective-C runtime/ABI, as used on Mac OS X
for ARM (iPhone) 64 bit (PowerPC/64, x86_64) -- all these targets now
are now also supported for the objectivec1 modeswitch
+ support for private_extern symbol bindings, required for the above
* mark objcclasses that are declared in the implementation section of a
unit as "hidden" (not sure what the effect is, since the Objective-C
runtime does not seem to do anything with this flag)
* enabled all obj-c tests for the newly supported platforms
git-svn-id: branches/objc@13763 -
a) it's unnecessary
b) it's slower than "direct" RIP-relative accessing
c) it's not supported on darwin/x86_64 in certain cases
* never use absolute addressing on darwin/x86_64 (like on win64)
* when not generating PIC, make sure that a_loadaddr_ref_reg on x86_64
also uses RIP-relative addressing for darwin/x86_64 and win64
git-svn-id: trunk@13760 -
changes from that commit, because not hardcoding the use of
current_procinfo in all cases when obtaining the GOT register is
cleaner
git-svn-id: trunk@13470 -
alignment for each memory reference (mantis #12137, and
test/packages/fcl-registry/tregistry1.pp on sparc). This also
enables better code generation for packed records in many cases.
o several changes were made to the compiler to minimise the chances
of accidentally forgetting to set the alignment of memory references
in the future:
- reference_reset*() now has an extra alignment parameter
- location_reset() can now only be used for non LOC_(C)REFERENCE,
use location_reset_ref() for those (split the tloc enum so the
compiler can catch errors using range checking)
git-svn-id: trunk@12719 -
shortstring temps don't get maximum alignment)
* changed some gettemptyed() calls into gettemp() calls (gettemptyped
means that this temp can only be used for temps of that type,
which is necessary for refcounted types but not for floats)
git-svn-id: trunk@12036 -
the syntax is exactly the same as for "external", except for
the keyword. It is currently only active for Darwin targets.
It should also work at least for Linux targets, but only with
the GNU assembler (which is why it is not activated there)
+ test for this functionality
git-svn-id: trunk@12009 -
