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28 Commits

Author SHA1 Message Date
Jan Sjödin
d1cba8727a Add createELFObjectTargetWriter method to TargetAsmBackend, which enables construction of non-standard ELFObjectWriters that can be used in MCJIT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127346 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-09 18:44:41 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:06:08 +00:00
Daniel Dunbar
2761fc4270 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:20:06 +00:00
Rafael Espindola
89b9372605 Fixed version of 121434 with no new memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 07:39:47 +00:00
Rafael Espindola
f7fd4aa261 Revert my previous patch to make the valgrind bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:01:09 +00:00
Rafael Espindola
1c952b9cc9 Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:48:29 +00:00
Jim Grosbach
5be6d2af38 Let target asm backends see assembler flags as they go by. Use that to handle 
thumb vs. arm mode differences in WriteNopData().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:16:55 +00:00
Rafael Espindola
179821ac1f Remove the instruction fragment to data fragment lowering since it was causing 
freed data to be read. I will open a bug to track it being reenabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 19:08:48 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Rafael Espindola
fd46797d0d Remove the unused TheTarget member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-26 04:24:21 +00:00
Rafael Espindola
f2dc4aa562 make isVirtualSection a virtual method on MCSection. Chris' suggestion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 20:03:54 +00:00
Rafael Espindola
f230df9af4 Add a MCObjectFormat class so that code common to all targets that use a 
single object format can be shared.

This also adds support for

mov zed+(bar-foo), %eax

on ELF and COFF targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116675 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 18:23:53 +00:00
Kevin Enderby
8ebf66236e Adds getPointerSize() to the AsmBackend which will be needed by the final patch 
for the dwarf .loc support to emit dwarf line number tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:38:07 +00:00
Daniel Dunbar
95506d40c5 MC: Change RelaxInstruction to only take the input and output instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 18:15:06 +00:00
Daniel Dunbar
8488252855 MC: Simplify MayNeedRelaxation to not provide the fixups, so we can query it 
before encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:45:29 +00:00
Daniel Dunbar
c90e30aa6f MC: Eliminate MCAsmFixup, replace with MCFixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 15:18:56 +00:00
Daniel Dunbar
a5f1d57f65 MC/Mach-O/x86_64: Add a new hook for checking whether a particular section can 
be diced into atoms, and adjust getAtom() to take this into account.
 - This fixes relocations to symbols in fixed size literal sections, for
   example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103532 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:38:17 +00:00
Daniel Dunbar
337055e62f MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 03:13:05 +00:00
Daniel Dunbar
8f9b80e5df MC: Add TargetAsmBackend::WriteNopData and use to eliminate some target dependencies in MCMachOStreamer and MCAssembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 02:36:58 +00:00
Daniel Dunbar
829680048c MC: Add TargetAsmBackend::RelaxInstruction callback, and custom X86 implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 01:39:09 +00:00
Daniel Dunbar
1a9158c301 MC: Add TargetAsmBackend::createObjectWriter. 
- MCAssembler is now object-file independent, although we will surely need more work to fully support ELF/COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 10:43:26 +00:00
Daniel Dunbar
cc5b84c6fb MC: Add TargetAsmBackend::isVirtualSection hook. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 09:29:03 +00:00
Daniel Dunbar
87190c473c MCAssembler: Move ApplyFixup to the TargetAsmBackend, this is a target specific not object writer specific task. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 09:28:12 +00:00
Daniel Dunbar
0682951b4f MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols. 
Also, avoid some virtual call overhead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-18 00:58:53 +00:00
Daniel Dunbar
d6e59084d0 MC/Mach-O/x86_64: Temporary labels in cstring sections require symbols (and external relocations, but we don't have x86_64 relocations yet). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-15 21:56:50 +00:00
Daniel Dunbar
23ac7c78e4 MC: Sketch some TargetAsmBackend hooks we are going to need. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 01:34:21 +00:00
Daniel Dunbar
e7bd886cb8 MC: Sketch registry support for target specific assembler backends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 21:53:53 +00:00