Daniel Dunbar
f476b00f51
MC: Simplify main section layout process by moving alignment into LayoutSection.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:42 +00:00
Daniel Dunbar
be644a38c0
MC: Sink Section address assignment into LayoutSection.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:38 +00:00
Daniel Dunbar
8fb040308c
MC/Mach-O: Switch to MCSectionData::getOrdinal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 08:08:54 +00:00
Daniel Dunbar
5a6e97a7e4
MC: Explicity track section and fragment ordinals.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:11 +00:00
Daniel Dunbar
b026d64bf2
Fix -Asserts warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:05 +00:00
Daniel Dunbar
5d428511ca
MC: Route access to SectionData offset and file size through MCAsmLayout.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:07 +00:00
Daniel Dunbar
432cd5fd9b
MC: Route access to Fragment offset and effective size through MCAsmLayout.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:02 +00:00
Daniel Dunbar
7c3d45a03e
MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:03:24 +00:00
Daniel Dunbar
e9cfd685f5
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99466 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:03:17 +00:00
Daniel Dunbar
207e06ea04
MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 03:43:40 +00:00
Daniel Dunbar
ff54784683
MC: Sprinkle in some more interesting statistics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99350 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 23:47:14 +00:00
Daniel Dunbar
ef6e96f91f
llvm-mc: Fast path EvaluateAbsolute of constants.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 23:47:07 +00:00
Daniel Dunbar
d8036fb0de
MC: Switch to using MCInst fragments to do relaxation.
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Also, both MCMachOStreamer and MCAssembler are now target independent!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 05:09:03 +00:00
Daniel Dunbar
337055e62f
MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation.
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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.
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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
9799de910e
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99244 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 01:39:05 +00:00
Jeffrey Yasskin
1ccd91a5b1
Put MCSectionCOFF::Name into the MCContext instead of leaking it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99231 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 23:26:12 +00:00
Daniel Dunbar
3f4dcd92da
MC: Add MCInstFragment, not used yet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 23:16:48 +00:00
Daniel Dunbar
35b0657dea
Add a FIXME.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 23:16:43 +00:00
Daniel Dunbar
9d39e616cc
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 21:49:41 +00:00
Daniel Dunbar
c6f598209a
Simplify.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99217 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 21:49:38 +00:00
Daniel Dunbar
67c076cf59
MCInst: Add ::dump_pretty.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 21:49:34 +00:00
Daniel Dunbar
b751418a39
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 20:35:50 +00:00
Daniel Dunbar
f70f477024
MC/Mach-O: Factor out getOrCreateDataFragment().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 20:35:46 +00:00
Daniel Dunbar
2a6e3f5be2
MC: Eliminate MCFragment::getMaxFileSize.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 20:35:43 +00:00
Daniel Dunbar
8d39eb47d6
MC: Share the MCAsmLayout object, although its still not used for anything important.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 20:35:35 +00:00
Daniel Dunbar
873decbb37
Better fix for r98994, MachObjectWriterImpl wasn't intended to be virtual.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-20 01:58:40 +00:00
Rafael Espindola
a407fa830a
Fix -Wnon-virtual-dtor warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 21:26:46 +00:00
Daniel Dunbar
602b40f0d0
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. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 18:07:55 +00:00
Daniel Dunbar
1a9158c301
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.
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
b36052f0e4
MCCodeEmitter: Add target independent fixup flag for is-pc-relative.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98954 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 10:43:23 +00:00
Daniel Dunbar
cf871e5abf
MC: Sink code emitter into MCAssembler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 10:43:18 +00:00
Daniel Dunbar
2df4ceba15
MC/Mach-O: Move to MachObjectWriter.{h,cpp}.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98952 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 10:43:15 +00:00
Daniel Dunbar
cc5b84c6fb
MC: Add TargetAsmBackend::isVirtualSection hook.
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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
53b2338a1d
MC: Split MCObjectWriter out of MCAssembler.cpp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 09:28:59 +00:00
Daniel Dunbar
bdd9281f35
MCAssembler: Pull out MCObjectWriter class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 09:28:55 +00:00
Daniel Dunbar
87190c473c
MCAssembler: Move ApplyFixup to the TargetAsmBackend, this is a target specific not object writer specific task.
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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
b1e98945e4
MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98944 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 07:09:47 +00:00
Daniel Dunbar
bacba99778
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 07:09:33 +00:00
Daniel Dunbar
17a0650641
MC/Mach-O: Lift relocation emission logic a bit higher to separate evaluation / relocation handling from the actual .o writing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 07:09:18 +00:00
Chris Lattner
4c42a6de9f
fix an MCInstPrinter leak that jyasskin pointed out:
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createAsmStreamer now takes ownership of the instprinter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 05:48:53 +00:00
Daniel Dunbar
034843ac8b
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98926 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:18 +00:00
Daniel Dunbar
8ad0dccbf2
MC/Mach-O/x86_64: Add getAtom[ForAddress].
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- These find the defining symbol which identifies the containing atom for a symbol or address. They are currently very slow, but will be eliminated eventually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:15 +00:00
Daniel Dunbar
939f8d7ca2
MC/Mach-O: Factor out isScatteredFixupFullyResolvedSimple predicate, and fix some corner cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98924 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:12 +00:00
Daniel Dunbar
2386985663
MC/Mach-O: Factor out isSymbolLinkerVisible method; "linker visible" is a made up term to refer to non-temporary labels + temporary labels in sections-which-require symbols. For Darwin, it corresponds to symbols which effectively define an atom.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98923 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:09 +00:00
Daniel Dunbar
9a1d20042f
MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 00:59:10 +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.
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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
Chris Lattner
77e7694026
fix GetOrCreateTemporarySymbol to require a name, clients
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should use CreateTempSymbol() if they don't care about the
name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 05:41:18 +00:00
Daniel Dunbar
4e815f8a8c
MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
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- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
- This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98592 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 23:51:06 +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).
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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