Chris Lattner
1716721df1
add a twine form of MCStreamer::EmitRawText, and mc'ize
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a few more things in AsmPrinter.cpp.
llvm-svn: 100294
2010-04-03 22:12:35 +00:00
Chris Lattner
aca014e24e
allow attaching comments to raw text.
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llvm-svn: 100292
2010-04-03 22:06:56 +00:00
Chris Lattner
6ec72d2e8f
add <cstdlib> header for abort() on linux builders.
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llvm-svn: 100290
2010-04-03 21:48:59 +00:00
Chris Lattner
8a87fb7633
add a new EmitInlineAsm function to asmprinter to handle inline asm.
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If we have an MCAsmStreamer, we continue to emit asm textually,
otherwise we (currently) emit an error to errs and ignore it.
llvm-svn: 100289
2010-04-03 21:35:55 +00:00
Chris Lattner
9897043928
Rip out the 'is temporary' nonsense from the MCContext interface to
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create symbols. It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.
This fixes rdar://7807601.
llvm-svn: 99902
2010-03-30 18:10:53 +00:00
Daniel Dunbar
c95156262d
MC/Mach-O/x86_64: Support @GOTPCREL on symbols, even for non-PCrel relocations!
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llvm-svn: 99853
2010-03-29 23:56:40 +00:00
Daniel Dunbar
d821f4ac60
llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
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exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.
llvm-svn: 99563
2010-03-25 22:49:09 +00:00
Daniel Dunbar
6432bd744e
MC: Stop restarting layout on every relaxation.
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- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.
On the .s I am tuning against (combine.s from 403.gcc):
--
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
5,10c5,10
< 1728 assembler - Number of assembler layout and relaxation steps
< 7707 assembler - Number of emitted assembler fragments
< 120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
< 1727 assembler - Number of relaxed instructions
< 6723845 mcexpr - Number of MCExpr evaluations
---
> 3 assembler - Number of assembler layout and relaxation steps
> 7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
> 14796 assembler - Number of evaluated fixups
> 1727 assembler - Number of relaxed instructions
> 67889 mcexpr - Number of MCExpr evaluations
--
Feel free to LOL at the -before numbers, if you like.
I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.
llvm-svn: 99543
2010-03-25 19:35:56 +00:00
Daniel Dunbar
0ba6a671d4
MC: Simplify main section layout process by moving alignment into LayoutSection.
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llvm-svn: 99529
2010-03-25 18:16:42 +00:00
Daniel Dunbar
25d114b2b2
MC: Sink Section address assignment into LayoutSection.
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llvm-svn: 99528
2010-03-25 18:16:38 +00:00
Daniel Dunbar
951459740c
MC/Mach-O: Switch to MCSectionData::getOrdinal.
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llvm-svn: 99504
2010-03-25 08:08:54 +00:00
Daniel Dunbar
4108802628
MC: Explicity track section and fragment ordinals.
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llvm-svn: 99500
2010-03-25 07:10:11 +00:00
Daniel Dunbar
eaa792f0d9
Fix -Asserts warning.
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llvm-svn: 99499
2010-03-25 07:10:05 +00:00
Daniel Dunbar
5b07334c0d
MC: Route access to SectionData offset and file size through MCAsmLayout.
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llvm-svn: 99474
2010-03-25 02:00:07 +00:00
Daniel Dunbar
2522dd1c49
MC: Route access to Fragment offset and effective size through MCAsmLayout.
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llvm-svn: 99473
2010-03-25 02:00:02 +00:00
Daniel Dunbar
5d98824615
MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
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llvm-svn: 99467
2010-03-25 01:03:24 +00:00
Daniel Dunbar
5caf2ff561
MC: Fix refacto in MCExpr evaluation, I mistakenly replaced a fragment address with a symbol address.
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- This fixes the integrated-as nightly test regressions.
llvm-svn: 99466
2010-03-25 01:03:17 +00:00
Daniel Dunbar
7c969558d9
MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object.
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llvm-svn: 99380
2010-03-24 03:43:40 +00:00
Daniel Dunbar
5376c2a431
MC: Sprinkle in some more interesting statistics.
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llvm-svn: 99350
2010-03-23 23:47:14 +00:00
Daniel Dunbar
5cfb58719d
llvm-mc: Fast path EvaluateAbsolute of constants.
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llvm-svn: 99348
2010-03-23 23:47:07 +00:00
Daniel Dunbar
de04b3f62c
MC: Switch to using MCInst fragments to do relaxation.
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Also, both MCMachOStreamer and MCAssembler are now target independent!
llvm-svn: 99256
2010-03-23 05:09:03 +00:00
Daniel Dunbar
86face8333
MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation.
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llvm-svn: 99249
2010-03-23 03:13:05 +00:00
Daniel Dunbar
a9ae3ae698
MC: Add TargetAsmBackend::WriteNopData and use to eliminate some target dependencies in MCMachOStreamer and MCAssembler.
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llvm-svn: 99248
2010-03-23 02:36:58 +00:00
Daniel Dunbar
16cbe95dd6
MC: Tweak MCInstFragment to include the encoded data and fixups, so that we don't need to recompute them during relaxation. I will revisit this once all the other pieces of fast relaxation are in place.
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llvm-svn: 99244
2010-03-23 01:39:05 +00:00
Jeffrey Yasskin
a99d232803
Put MCSectionCOFF::Name into the MCContext instead of leaking it.
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llvm-svn: 99231
2010-03-22 23:26:12 +00:00
Daniel Dunbar
b31c49a70d
MC: Add MCInstFragment, not used yet.
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llvm-svn: 99229
2010-03-22 23:16:48 +00:00
Daniel Dunbar
a75f01a905
Add a FIXME.
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llvm-svn: 99228
2010-03-22 23:16:43 +00:00
Daniel Dunbar
fdc7ccc4e4
MC: Fix a few more cases we were passing an MCDataFragment when a MCFragment would do, and sprinkle in some const.
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llvm-svn: 99218
2010-03-22 21:49:41 +00:00
Daniel Dunbar
20ea02fde2
Simplify.
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llvm-svn: 99217
2010-03-22 21:49:38 +00:00
Daniel Dunbar
04047fbe14
MCInst: Add ::dump_pretty.
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llvm-svn: 99216
2010-03-22 21:49:34 +00:00
Daniel Dunbar
a0ab4bf989
MC: Change MCObjectWriter::RecordRelocation to take an MCFragment (instead of a MCDataFragment). Object files should only need the generic MCFragment features.
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llvm-svn: 99205
2010-03-22 20:35:50 +00:00
Daniel Dunbar
f1f1827bfa
MC/Mach-O: Factor out getOrCreateDataFragment().
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llvm-svn: 99204
2010-03-22 20:35:46 +00:00
Daniel Dunbar
9213355a91
MC: Eliminate MCFragment::getMaxFileSize.
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llvm-svn: 99203
2010-03-22 20:35:43 +00:00
Daniel Dunbar
32ffc58ca9
MC: Share the MCAsmLayout object, although its still not used for anything important.
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llvm-svn: 99202
2010-03-22 20:35:35 +00:00
Daniel Dunbar
5ea5fab22b
Better fix for r98994, MachObjectWriterImpl wasn't intended to be virtual.
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llvm-svn: 99031
2010-03-20 01:58:40 +00:00
Rafael Espindola
07b4f8cd4b
Fix -Wnon-virtual-dtor warning.
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llvm-svn: 98994
2010-03-19 21:26:46 +00:00
Daniel Dunbar
1a81ad3559
MC/Mach-O/x86_64: Add relocation support.
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- This is "extraordinarily" Darwin 'as' compatible. See the litany of FIXMEs littered about for more information.
- There are a few cases which seem to clearly be 'as' bugs which I have left unsupported, and there is one cases where we diverge but should fix if it blocks diffing .o files (Darwin 'as' ends up widening a jump unnecessarily).
- 403.gcc build, runs, and diffs equivalently to the 'as' built version now (using llvm-mc). However, it builds so slowly that I wouldn't recommend trying it quite yet. :)
llvm-svn: 98974
2010-03-19 18:07:55 +00:00
Daniel Dunbar
4d7c8645fd
MC: Add TargetAsmBackend::createObjectWriter.
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- MCAssembler is now object-file independent, although we will surely need more work to fully support ELF/COFF.
llvm-svn: 98955
2010-03-19 10:43:26 +00:00
Daniel Dunbar
eaa367f5ae
MCCodeEmitter: Add target independent fixup flag for is-pc-relative.
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llvm-svn: 98954
2010-03-19 10:43:23 +00:00
Daniel Dunbar
1bd7171c95
MC: Sink code emitter into MCAssembler.
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llvm-svn: 98953
2010-03-19 10:43:18 +00:00
Daniel Dunbar
79e0e5a631
MC/Mach-O: Move to MachObjectWriter.{h,cpp}.
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llvm-svn: 98952
2010-03-19 10:43:15 +00:00
Daniel Dunbar
c5084cccc8
MC: Add TargetAsmBackend::isVirtualSection hook.
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llvm-svn: 98950
2010-03-19 09:29:03 +00:00
Daniel Dunbar
f027abf7de
MC: Split MCObjectWriter out of MCAssembler.cpp.
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llvm-svn: 98949
2010-03-19 09:28:59 +00:00
Daniel Dunbar
49e5a8ac2a
MCAssembler: Pull out MCObjectWriter class.
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llvm-svn: 98948
2010-03-19 09:28:55 +00:00
Daniel Dunbar
f0517efc6c
MCAssembler: Move ApplyFixup to the TargetAsmBackend, this is a target specific not object writer specific task.
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llvm-svn: 98947
2010-03-19 09:28:12 +00:00
Daniel Dunbar
3cab275783
MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue.
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llvm-svn: 98944
2010-03-19 07:09:47 +00:00
Daniel Dunbar
d84d196a86
MC/Mach-O: Factor out ExecutePostLayoutBinding, to separate the post-layout changes the object writer may need to make to the assembler from the actual .o writing.
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llvm-svn: 98943
2010-03-19 07:09:33 +00:00
Daniel Dunbar
563d40eda6
MC/Mach-O: Lift relocation emission logic a bit higher to separate evaluation / relocation handling from the actual .o writing.
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llvm-svn: 98942
2010-03-19 07:09:18 +00:00
Chris Lattner
90a7859ebc
fix an MCInstPrinter leak that jyasskin pointed out:
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createAsmStreamer now takes ownership of the instprinter.
llvm-svn: 98939
2010-03-19 05:48:53 +00:00
Daniel Dunbar
0f7fbb3d00
MC/Mach-O: Add isScatteredFixupFullyResolved, which implements the correct algorithm (used on x86_64) for determining whether an evaluated fixup is fully resolved (doesn't need relocation).
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- Test cases will follow, once we have x86_64 relocation support.
llvm-svn: 98926
2010-03-19 03:18:18 +00:00