Daniel Dunbar
7e141838cd
MC: Add dyn_cast support to MCSection.
...
- Of questionable utility, since in general anything which wants to do this should probably be within a target specific hook, which can rely on the sections being of the appropriate type. However, it can be useful for short term hacks.
llvm-svn: 103980
2010-05-17 21:54:26 +00:00
Eric Christopher
380e16a725
Add some section and constant support for darwin TLS.
...
llvm-svn: 103974
2010-05-17 21:02:07 +00:00
Daniel Dunbar
8f5da3624f
llvm-mc: Support reassignment of variables in one special case, when the
...
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.
llvm-svn: 103950
2010-05-17 17:46:23 +00:00
Eric Christopher
ebea91f168
Add AsmParser support for darwin tbss directive.
...
Nothing uses this yet.
llvm-svn: 103757
2010-05-14 01:50:28 +00:00
Nick Lewycky
aeb998db39
Fix typo.
...
llvm-svn: 103755
2010-05-14 01:02:48 +00:00
Daniel Dunbar
7fee3c7b28
MC: Switch to completely lazy layout.
...
- The eliminates the last major algorithmic problem with MC.
llvm-svn: 103754
2010-05-14 00:51:14 +00:00
Daniel Dunbar
66c2ccec2d
MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order.
...
llvm-svn: 103753
2010-05-14 00:37:21 +00:00
Daniel Dunbar
11467b2eaa
MC: Switch MCFragment to storing the layout order index, not its index in the file.
...
llvm-svn: 103751
2010-05-14 00:37:14 +00:00
Daniel Dunbar
b2a98e0a16
MC: Change LayoutSection() to only do the section initializiation.
...
Also, elimminate MCAsmLayout::set*, which are no longer needed.
llvm-svn: 103750
2010-05-14 00:37:11 +00:00
Daniel Dunbar
86825a9719
MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().
...
llvm-svn: 103738
2010-05-13 20:40:12 +00:00
Daniel Dunbar
b142c00db4
MC: Factor out MCAssembler::ComputeFragmentSize.
...
llvm-svn: 103724
2010-05-13 18:35:06 +00:00
Daniel Dunbar
5a601f9e09
MC: Add section layout order indices to MCSectionData.
...
llvm-svn: 103715
2010-05-13 15:17:26 +00:00
Daniel Dunbar
5ef1bcbb97
MC: Add MCAsmLayout::FragmentReplaced() helper function.
...
llvm-svn: 103709
2010-05-13 08:43:31 +00:00
Daniel Dunbar
561f55c1af
MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by
...
utility functions.
llvm-svn: 103695
2010-05-13 03:19:50 +00:00
Daniel Dunbar
3fc379596a
MC: Add MCAlignFragment::OnlyAlignAddress bit. This is a bit of magic that says the align fragment shouldn't contribute to the logical section size, it is will be used for cleaning up the code to handle section alignment.
...
llvm-svn: 103690
2010-05-13 01:10:26 +00:00
Daniel Dunbar
ec3a2ac5ed
MC: Add MCSectionData::AddressSize, which is the size of the address space consumed by the section. This can differ from both the section logical size, and the section size on disk (although the current code handles this without making an explicit distinction).
...
llvm-svn: 103689
2010-05-13 01:10:22 +00:00
Daniel Dunbar
de7caed021
MC: Move MCAlignFragment::EmitNops value out of the constructor.
...
llvm-svn: 103665
2010-05-12 22:56:23 +00:00
Daniel Dunbar
cf11e2a0a5
MC: Eliminate MCZeroFillFragment, it is no longer needed.
...
llvm-svn: 103664
2010-05-12 22:51:38 +00:00
Daniel Dunbar
08bcc3a6fc
MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill.
...
llvm-svn: 103662
2010-05-12 22:51:32 +00:00
Daniel Dunbar
d3f60794d8
MC: Drop support for alignment in ZeroFill fragment, we can just use
...
MCAlignFragments for this.
llvm-svn: 103661
2010-05-12 22:51:27 +00:00
Daniel Dunbar
6a495507e5
MC: Factor out MCAssembler::LayoutFragment
...
llvm-svn: 103649
2010-05-12 21:35:25 +00:00
Daniel Dunbar
7b72c3c7a0
MC: Simplify LayoutSection to just take the index of the section to layout.
...
llvm-svn: 103627
2010-05-12 17:56:47 +00:00
Daniel Dunbar
adca38558e
MC: Track section layout order explicitly, and use to simplify.
...
llvm-svn: 103616
2010-05-12 15:42:59 +00:00
Rafael Espindola
3efc86abab
Add support for movi32 of global values to the new (MC) asm printer.
...
llvm-svn: 103576
2010-05-12 05:16:34 +00:00
Nathan Jeffords
2c2c69c075
Added a trivial function to modify the flags field of MCSymbolData class. The function takes the value and a mask, and clears the mask bits before applying the value.
...
llvm-svn: 103534
2010-05-12 00:52:54 +00:00
Daniel Dunbar
7670f69e42
MC/Mach-O x86_64: Switch to using fragment atom symbol.
...
- This eliminates getAtomForAddress() (which was a linear search) and
simplifies getAtom().
- This also fixes some correctness problems where local labels at the same
address as non-local labels could be assigned to the wrong atom.
llvm-svn: 103480
2010-05-11 17:22:50 +00:00
Daniel Dunbar
00ffbb63da
MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used).
...
llvm-svn: 103438
2010-05-10 22:45:09 +00:00
Chris Lattner
568058ef71
break coff symbol definition stuff out into proper MCStreamer callbacks,
...
patch by Nathan Jeffords!
llvm-svn: 103346
2010-05-08 19:54:22 +00:00
Chris Lattner
e72e3e9c12
add COFF support for COMDAT sections, patch by Nathan Jeffords!
...
llvm-svn: 103304
2010-05-07 21:49:09 +00:00
Kevin Enderby
3807a4746a
Fix i386 relocations to Weak Definitions. The relocation entries should be
...
external and the item to be relocated should not have the address of the
symbol added in.
llvm-svn: 103302
2010-05-07 21:44:23 +00:00
Chris Lattner
c1d0e3a79e
switch MCSectionCOFF from a syntactic to semantic representation,
...
patch by Peter Housel!
llvm-svn: 103267
2010-05-07 17:17:41 +00:00
Daniel Dunbar
258ede3795
MC: Make setVariableValue check the redefinition condition a bit more strongly.
...
llvm-svn: 103110
2010-05-05 19:00:56 +00:00
Daniel Dunbar
d2ac9dc48b
MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue.
...
llvm-svn: 103095
2010-05-05 17:41:00 +00:00
Daniel Dunbar
f5dc70a7d1
MC/Mach-O/x86_64: Relocations in debug sections should use local relocations
...
when possible.
- <rdar://problem/7934873>
llvm-svn: 103092
2010-05-05 17:22:39 +00:00
Mon P Wang
bfebbd889a
Add support for assemblers that don't support periods in a name
...
llvm-svn: 102594
2010-04-29 04:00:56 +00:00
Dan Gohman
26719acdb7
Add a const.
...
llvm-svn: 101777
2010-04-19 15:39:27 +00:00
Chris Lattner
65d1e40895
teach the x86 asm parser how to handle segment prefixes
...
in memory operands. rdar://7874844
llvm-svn: 101661
2010-04-17 18:56:34 +00:00
Chris Lattner
a5798151a3
refactor .if handling code a bit.
...
llvm-svn: 101659
2010-04-17 18:14:27 +00:00
Chris Lattner
124dc743bc
implement mc asmparser support for '.', which gets the
...
current PC. rdar://7834775
We now produce an identical .o file compared to the cctools
assembler for something like this:
_f0:
L0:
jmp L1
.long . - L0
L1:
jmp A
.long . - L1
.zerofill __DATA,_bss,A,0
llvm-svn: 101227
2010-04-14 04:40:28 +00:00
Sean Callanan
b76f351c0b
Quick fix for build errors caused by undefined
...
NULL.
llvm-svn: 101180
2010-04-13 21:36:35 +00:00
Sean Callanan
29a7152676
Fixed a nasty layering violation in the edis source
...
code. It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.
Also removed hacky #define-controlled initialization
of targets in edis. If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.
llvm-svn: 101179
2010-04-13 21:21:57 +00:00
Chris Lattner
e154403f78
delete a forwarding function.
...
llvm-svn: 100815
2010-04-08 21:34:17 +00:00
Chris Lattner
1cf4bded13
move elf section uniquing to MCContext. Along the way
...
merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
Chris Lattner
0225dbbfee
remove the TargetLoweringObjectFileMachO::getMachoSection
...
api and update clients to use MCContext instead.
llvm-svn: 100808
2010-04-08 20:40:11 +00:00
Chris Lattner
60ff59e5c1
move macho section uniquing from MCParser and TLOF to MCContext where
...
the compiler and asmparser now unique to the same sections. This fixes
rdar://7835021.
llvm-svn: 100807
2010-04-08 20:30:37 +00:00
Chris Lattner
f753452587
Give AsmParser an option to control whether it finalizes
...
the stream. New demo:
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000 subq $0x08,%rsp
0000000000000004 movl %edi,(%rsp)
0000000000000007 movl %edi,%eax
0000000000000009 incl %eax
000000000000000b movl %eax,(%rsp)
000000000000000e movl %eax,0x04(%rsp)
0000000000000012 addq $0x08,%rsp
0000000000000016 ret
llvm-svn: 100492
2010-04-05 23:15:42 +00:00
Chris Lattner
ecdad4bb0c
eliminate the magic AbsoluteDebugSectionOffsets MAI hook,
...
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.
Yay for reduction in magic.
llvm-svn: 100367
2010-04-04 23:22:29 +00:00
Chris Lattner
2f1c065cef
isAbsoluteEHSectionOffsets always returns false, eliminate it
...
and substitute false at the one call site.
llvm-svn: 100354
2010-04-04 21:29:44 +00:00
Chris Lattner
8fb6be1886
fix an ugly wart in the MCInstPrinter api where the
...
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.
llvm-svn: 100307
2010-04-04 05:04:31 +00:00
Chris Lattner
b6769a8513
add a twine form of MCStreamer::EmitRawText, and mc'ize
...
a few more things in AsmPrinter.cpp.
llvm-svn: 100294
2010-04-03 22:12:35 +00:00
Chris Lattner
4e8e791414
add a new EmitInlineAsm function to asmprinter to handle inline asm.
...
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
8e4cf6f425
Rip out the 'is temporary' nonsense from the MCContext interface to
...
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
d04906b49e
llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
...
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
21e9834bc1
MC: Stop restarting layout on every relaxation.
...
- 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
4935edfb58
MC: Simplify main section layout process by moving alignment into LayoutSection.
...
llvm-svn: 99529
2010-03-25 18:16:42 +00:00
Daniel Dunbar
8d2b718d91
MC: Sink Section address assignment into LayoutSection.
...
llvm-svn: 99528
2010-03-25 18:16:38 +00:00
Daniel Dunbar
de3fc7d4d8
MC: Explicity track section and fragment ordinals.
...
llvm-svn: 99500
2010-03-25 07:10:11 +00:00
Daniel Dunbar
797b44b26c
MC: Route access to SectionData offset and file size through MCAsmLayout.
...
llvm-svn: 99474
2010-03-25 02:00:07 +00:00
Daniel Dunbar
4b6b2a1a1f
MC: Route access to Fragment offset and effective size through MCAsmLayout.
...
llvm-svn: 99473
2010-03-25 02:00:02 +00:00
Daniel Dunbar
70fbcbc1cd
MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
...
llvm-svn: 99467
2010-03-25 01:03:24 +00:00
Dan Gohman
8493042e4d
Docuemntation corrections from John Myers.
...
llvm-svn: 99454
2010-03-25 00:03:04 +00:00
Daniel Dunbar
3a79d30c6c
MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object.
...
llvm-svn: 99380
2010-03-24 03:43:40 +00:00
Daniel Dunbar
47743ae59a
MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation.
...
llvm-svn: 99249
2010-03-23 03:13:05 +00:00
Daniel Dunbar
ae8d914c58
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.
...
llvm-svn: 99244
2010-03-23 01:39:05 +00:00
Jeffrey Yasskin
b9c181ea1a
Put MCSectionCOFF::Name into the MCContext instead of leaking it.
...
llvm-svn: 99231
2010-03-22 23:26:12 +00:00
Daniel Dunbar
0f6983752f
MC: Add MCInstFragment, not used yet.
...
llvm-svn: 99229
2010-03-22 23:16:48 +00:00
Daniel Dunbar
4b5c134c5b
MC: Fix a few more cases we were passing an MCDataFragment when a MCFragment would do, and sprinkle in some const.
...
llvm-svn: 99218
2010-03-22 21:49:41 +00:00
Daniel Dunbar
38fd48e06b
MCInst: Add ::dump_pretty.
...
llvm-svn: 99216
2010-03-22 21:49:34 +00:00
Daniel Dunbar
6a91d2767b
MC: Change MCObjectWriter::RecordRelocation to take an MCFragment (instead of a MCDataFragment). Object files should only need the generic MCFragment features.
...
llvm-svn: 99205
2010-03-22 20:35:50 +00:00
Daniel Dunbar
264c33a099
MC: Eliminate MCFragment::getMaxFileSize.
...
llvm-svn: 99203
2010-03-22 20:35:43 +00:00
Daniel Dunbar
6ea8fe65e7
MC: Share the MCAsmLayout object, although its still not used for anything important.
...
llvm-svn: 99202
2010-03-22 20:35:35 +00:00
Douglas Gregor
0e5e5d7ba4
Acccess control is lame
...
llvm-svn: 98962
2010-03-19 15:36:58 +00:00
Douglas Gregor
08ed09f4f6
struct -> class, to silence a Clang warning
...
llvm-svn: 98961
2010-03-19 15:31:09 +00:00
Daniel Dunbar
7252b48af1
MCCodeEmitter: Add target independent fixup flag for is-pc-relative.
...
llvm-svn: 98954
2010-03-19 10:43:23 +00:00
Daniel Dunbar
c47468760e
MC: Sink code emitter into MCAssembler.
...
llvm-svn: 98953
2010-03-19 10:43:18 +00:00
Daniel Dunbar
74330a6389
MC/Mach-O: Move to MachObjectWriter.{h,cpp}.
...
llvm-svn: 98952
2010-03-19 10:43:15 +00:00
Daniel Dunbar
c9bcbc86a8
MC: Split MCObjectWriter out of MCAssembler.cpp.
...
llvm-svn: 98949
2010-03-19 09:28:59 +00:00
Daniel Dunbar
b2aafb5fe9
MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue.
...
llvm-svn: 98944
2010-03-19 07:09:47 +00:00
Daniel Dunbar
01aca21857
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.
...
llvm-svn: 98943
2010-03-19 07:09:33 +00:00
Chris Lattner
32452cf12f
fix an MCInstPrinter leak that jyasskin pointed out:
...
createAsmStreamer now takes ownership of the instprinter.
llvm-svn: 98939
2010-03-19 05:48:53 +00:00
Daniel Dunbar
0a3b893a3e
MC/Mach-O/x86_64: Add getAtom[ForAddress].
...
- 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.
llvm-svn: 98925
2010-03-19 03:18:15 +00:00
Daniel Dunbar
377fb36813
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.
...
llvm-svn: 98923
2010-03-19 03:18:09 +00:00
Daniel Dunbar
8b149ce7fd
MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.
...
llvm-svn: 98791
2010-03-18 00:59:10 +00:00
Daniel Dunbar
cc3d1188fb
Add MCSymbol::isInSection.
...
llvm-svn: 98790
2010-03-18 00:59:02 +00:00
Chris Lattner
962d3d700b
fix GetOrCreateTemporarySymbol to require a name, clients
...
should use CreateTempSymbol() if they don't care about the
name.
llvm-svn: 98712
2010-03-17 05:41:18 +00:00
Daniel Dunbar
241d3cb048
MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
...
- 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.
llvm-svn: 98592
2010-03-15 23:51:06 +00:00
Daniel Dunbar
27eab8e4f7
MC/Mach-O: Add MCSectionMachO::getType()
...
llvm-svn: 98582
2010-03-15 21:56:38 +00:00
Jeffrey Yasskin
9305e5644b
Don't save a temporary string into a StringRef field.
...
llvm-svn: 98538
2010-03-15 06:59:21 +00:00
Chris Lattner
b24982ba65
fix MCSectionELF to not leak memory, just like I did for MCSymbol.
...
MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.
llvm-svn: 98537
2010-03-15 06:23:52 +00:00
Chris Lattner
1b10191d18
fix a memory leak yjasskin pointed out: MCSymbol is bump pointer
...
allocated and thus not freed. This is cool except that it contains
and std::string so the string data didn't get freed. In any case
there is no reason to redundantly store the string data in the
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.
llvm-svn: 98536
2010-03-15 06:15:35 +00:00
Chris Lattner
3eb55835b5
add a new CreateTempSymbol method, the use case for
...
CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.
llvm-svn: 98486
2010-03-14 08:23:30 +00:00
Benjamin Kramer
3b2398d288
Add some parens and silence a warning.
...
llvm-svn: 98428
2010-03-13 07:40:34 +00:00
Daniel Dunbar
33c92a1a88
llvm-mc: Support -n, useful for comparing -integrated-as output since the
...
compiler may not lead with the text section.
llvm-svn: 98418
2010-03-13 02:20:57 +00:00
Daniel Dunbar
8ad9589475
MC/Mach-O: Implement initial support for relaxation.
...
- The implementation is currently very brain dead and inefficient, but I have a
clear plan on how to fix it.
- The good news is, it works and correctly assembles 403.gcc (when built with
Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
the resulting binary is exactly equivalent to that when built with the system
assembler. So it probably works! :)
llvm-svn: 98396
2010-03-12 22:07:14 +00:00
Chris Lattner
ff05ae7a33
move fastcall/stdcall mangling up into Mangler.
...
llvm-svn: 98384
2010-03-12 21:03:47 +00:00
Daniel Dunbar
642fbbe84d
MC: Factor out MCAssembler::EvaluateFixup, and simplify.
...
llvm-svn: 98381
2010-03-12 21:00:49 +00:00
Daniel Dunbar
14b9ff70e1
MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...
...
llvm-svn: 98380
2010-03-12 21:00:45 +00:00
Daniel Dunbar
71473e6b15
MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.
...
llvm-svn: 98379
2010-03-12 21:00:38 +00:00
Chris Lattner
956582f876
make the mangler take an MCContext instead of an MAI.
...
No functionality change.
llvm-svn: 98363
2010-03-12 18:44:54 +00:00
Chris Lattner
f4dce6a6d8
remove MAI argument from createAsmStreamer since it
...
can get it from the context now.
llvm-svn: 98361
2010-03-12 18:28:53 +00:00
Chris Lattner
debc026df2
change MCContext to always have an MCAsmInfo.
...
llvm-svn: 98293
2010-03-11 22:53:35 +00:00
Daniel Dunbar
8790f4ce4b
MC/Mach-O: Add MCSymbolData::getAddress() utility.
...
llvm-svn: 98266
2010-03-11 18:22:51 +00:00
Daniel Dunbar
aefde2abfd
MC/Mach-O: Start passing in the basic MCAsmLayout object.
...
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.
llvm-svn: 98240
2010-03-11 05:53:33 +00:00
Daniel Dunbar
285a34c8c8
MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
...
llvm-svn: 98227
2010-03-11 02:28:59 +00:00
Daniel Dunbar
687d99cfa8
MC: Provide MCAssembler with a TargetAsmBackend.
...
llvm-svn: 98222
2010-03-11 01:34:27 +00:00
Daniel Dunbar
fc99f844eb
MC: Move the backend section and symbol data maps to MCAssembler.
...
llvm-svn: 98186
2010-03-10 20:58:29 +00:00
Daniel Dunbar
8e45a4269e
Remove unneeded declarations.
...
llvm-svn: 98185
2010-03-10 20:58:25 +00:00
Chris Lattner
e34dde1e83
move three lowering hooks from MAI to TLOF and make one of them
...
semantic instead of syntactic. This completes MCization of
darwin/x86[-64]!
llvm-svn: 98145
2010-03-10 07:20:42 +00:00
Chris Lattner
ed0b8d36e4
set the temporary bit on MCSymbols correctly.
...
llvm-svn: 98124
2010-03-10 02:25:11 +00:00
Chris Lattner
554f323da8
eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
...
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.
llvm-svn: 98118
2010-03-10 01:29:27 +00:00
Chris Lattner
8147c144d9
add a EmitSymbolValue convenience method to MCStreamer.
...
llvm-svn: 98017
2010-03-09 00:39:24 +00:00
Kevin Enderby
c11390f758
This is the first patch to put the needed bits in place to eventually allow code
...
to be aligned with optimal nops. This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output. Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output. There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).
llvm-svn: 96963
2010-02-23 18:26:34 +00:00
Dan Gohman
835086ef52
Fix various doxygen warnings.
...
llvm-svn: 96779
2010-02-22 04:10:52 +00:00
Daniel Dunbar
7a1fd21459
MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size.
...
llvm-svn: 96094
2010-02-13 09:28:54 +00:00
Daniel Dunbar
8e9044353a
MCAssembler: Sink fixup list into MCDataFragment.
...
llvm-svn: 96093
2010-02-13 09:28:43 +00:00
Daniel Dunbar
95ae012b0e
MCAssembler: Switch MCFillFragment to only taking constant values. Symbolic expressions can always be emitted as data + fixups.
...
llvm-svn: 96092
2010-02-13 09:28:32 +00:00
Daniel Dunbar
481e926468
MCAssembler: Start applying fixups in the data section.
...
llvm-svn: 96090
2010-02-13 09:28:15 +00:00
Daniel Dunbar
a699e834fb
MCAssembler: Add assorted dump() methods.
...
llvm-svn: 96089
2010-02-13 09:28:03 +00:00
Chris Lattner
2a0d9140f5
doxygenize some comments, patch by Peter Collingbourne!
...
llvm-svn: 96018
2010-02-12 21:54:28 +00:00
Chris Lattner
144a1b7a24
add a new MCInstPrinter::getOpcodeName interface, when it is
...
implemented, llvm-mc --show-inst now uses it to print the
instruction opcode as well as the number.
llvm-svn: 95929
2010-02-11 22:39:10 +00:00
Daniel Dunbar
3ee9e4a9a5
MC: Move assembler-backend's fixup list into the fragment.
...
llvm-svn: 95926
2010-02-11 21:29:46 +00:00
Daniel Dunbar
fa324dd09b
MC: Move MCSectionData::Fixup out to MCAsmFixup.
...
llvm-svn: 95925
2010-02-11 21:29:29 +00:00
Chris Lattner
b82b965968
make getFixupKindInfo return a const reference, allowing
...
the tables to be const. Teach MCCodeEmitter to handle
the target-indep kinds so that we don't crash on them.
llvm-svn: 95924
2010-02-11 21:27:18 +00:00
Chris Lattner
5f5bb8b16d
add a virtual dtor to MCTargetExpr, hopefully silencing some warnings.
...
llvm-svn: 95810
2010-02-10 21:37:31 +00:00
Dan Gohman
92b6122204
Fix "the the" and similar typos.
...
llvm-svn: 95781
2010-02-10 16:03:48 +00:00
Daniel Dunbar
d2035fb242
MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the
...
MCInst it came from.
llvm-svn: 95767
2010-02-10 04:47:08 +00:00
Daniel Dunbar
50b2609956
Fix a signed comparison warning.
...
llvm-svn: 95766
2010-02-10 04:46:51 +00:00
Chris Lattner
aed1ea28cf
"fixup" a comment.
...
llvm-svn: 95754
2010-02-10 01:46:47 +00:00
Daniel Dunbar
75df429af0
llvm-mc: Remove --show-fixups and always show as part of --show-encoding.
...
Also, fix a silly memory leak.
llvm-svn: 95752
2010-02-10 01:41:14 +00:00
Chris Lattner
ca01d26903
Add ability for MCInstPrinters to add comments for instructions.
...
Enhance the x86 backend to show the hex values of immediates in
comments when they are large. For example:
movl $1072693248, 4(%esp) ## imm = 0x3FF00000
llvm-svn: 95728
2010-02-10 00:10:18 +00:00
Daniel Dunbar
1b050afd4e
llvm-mc: Add --show-fixups option, for displaying the instruction fixup information in the asm comments.
...
llvm-svn: 95710
2010-02-09 23:00:14 +00:00
Daniel Dunbar
ddfda89472
MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter.
...
llvm-svn: 95708
2010-02-09 22:59:55 +00:00
Chris Lattner
c0d3e6c90d
stop using reserved identifiers.
...
llvm-svn: 95630
2010-02-09 00:40:07 +00:00
Dan Gohman
71551e837f
Add explicit keywords.
...
llvm-svn: 95626
2010-02-09 00:29:29 +00:00
Dan Gohman
30845777be
Document that MCExpr::Mod is actually remainder.
...
Document that MCExpr::Div, Mod, and the comparison operators are all
signed operators.
Document that the comparison operators' results are target-dependent.
Document that the behavior of shr is target-dependent.
llvm-svn: 95619
2010-02-08 23:58:47 +00:00
Chris Lattner
39d41535ad
don't make hte dtor private or we can't construct the class.
...
llvm-svn: 95587
2010-02-08 22:07:36 +00:00
Chris Lattner
b3fe7597f5
add scaffolding for target-specific MCExprs.
...
llvm-svn: 95559
2010-02-08 19:41:07 +00:00
Daniel Dunbar
96bc973155
MC: Change default comment column to 40 characters.
...
llvm-svn: 95378
2010-02-05 07:32:18 +00:00
Daniel Dunbar
d997cd69cd
llvm-mc: Add --show-inst option, for showing the MCInst inline with the assembly
...
output.
llvm-svn: 95227
2010-02-03 18:18:30 +00:00
Chris Lattner
78f57ac8dc
Hook up -filetype=obj through the MachO streamer. Here's a demo:
...
$ cat t.ll
@g = global i32 42
$ llc t.ll -o t.o -filetype=obj
$ nm t.o
00000000 D _g
There is still a ton of work left. Instructions are not being encoded
yet apparently.
llvm-svn: 95162
2010-02-02 23:57:42 +00:00
Chris Lattner
643f2f9bc4
refactor code so that LLVMTargetMachine creates the asmstreamer and
...
mccontext instead of having AsmPrinter do it. This allows other
types of MCStreamer's to be passed in.
llvm-svn: 95155
2010-02-02 23:37:42 +00:00
Daniel Dunbar
eb0b81040a
MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections.
...
llvm-svn: 95135
2010-02-02 21:44:01 +00:00
Chris Lattner
325a36c358
Eliminate SetDirective, and replace it with HasSetDirective.
...
Default HasSetDirective to true, since most targets have it.
The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16. All of these except pic16 are normal ELF targets, so
they almost certainly have it.
llvm-svn: 94585
2010-01-26 20:40:54 +00:00
Rafael Espindola
f46baf3304
Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.
...
Original patch by Sandeep Patel and updated by me.
llvm-svn: 94582
2010-01-26 20:21:43 +00:00
Chris Lattner
044439c9bc
eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform
...
that has it.
llvm-svn: 94581
2010-01-26 20:20:43 +00:00
Chris Lattner
3559d9a38a
mcstreamerize gprel32 emission.
...
llvm-svn: 94452
2010-01-25 21:28:50 +00:00
Chris Lattner
ac1144c110
rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to
...
make it clear what it is, instead of how it is used.
llvm-svn: 94448
2010-01-25 21:10:10 +00:00
Chris Lattner
fafb52a75a
remove JumpTableDirective, it is always null.
...
llvm-svn: 94445
2010-01-25 20:52:54 +00:00
Chris Lattner
20d89c382c
mcstreamerize .file and .file. This also fixes an issue where the
...
normal form of .file would fail if the filename had a weird character
in it.
llvm-svn: 94437
2010-01-25 18:58:59 +00:00
Chris Lattner
7a5c8c15bd
add symbol attribute support for the ELF .type directive.
...
llvm-svn: 94435
2010-01-25 18:30:45 +00:00
Chris Lattner
9834b7f300
emit the .size directive for global variables on ELF through
...
mcstreamer.
llvm-svn: 94416
2010-01-25 07:52:13 +00:00
Chris Lattner
474395e815
all supported target now have aligned common support.
...
llvm-svn: 94413
2010-01-25 07:29:13 +00:00
Chris Lattner
617e6fb889
mcize lcomm, simplify .comm, extend both to support 64-bit sizes.
...
llvm-svn: 94299
2010-01-23 07:47:02 +00:00
Chris Lattner
7e1fa376cc
resolve a fixme: the "nonexecutable stack directive" is actually
...
a .section. Switch to it with SwitchSection.
However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.
llvm-svn: 94298
2010-01-23 07:21:06 +00:00
Chris Lattner
56c318f344
mcize visibility directives.
...
llvm-svn: 94295
2010-01-23 06:53:23 +00:00
Chris Lattner
60edc92e39
move the various directive enums out of the MCStreamer class
...
into a new MCDirectives.h file.
llvm-svn: 94294
2010-01-23 06:39:22 +00:00
Chris Lattner
62d08f5577
mcstreamerize .no_dead_strip and .reference for static ctors/dtors.
...
llvm-svn: 94290
2010-01-23 05:51:36 +00:00
Chris Lattner
2ee0376c42
mcize jump table and constant pool entry labels, .local on elf,
...
and some .weak directives.
llvm-svn: 94284
2010-01-23 05:19:23 +00:00
Sean Callanan
d1eb63a340
Added a Register token to AsmToken and the appropriate
...
accessor method for its value.
llvm-svn: 94241
2010-01-22 22:42:22 +00:00
Chris Lattner
bc01d5b148
Convert some more random-comment-printing stuff to use
...
AddComment and GetCommentOS. Add a blank line between globals
(even in non-verbose mode) to make the assembly more readable.
llvm-svn: 94202
2010-01-22 19:52:01 +00:00
Chris Lattner
20390f5205
add a new MCAsmStreamer::GetCommentOS method to simplify stuff
...
that doesn't want to use twines.
llvm-svn: 94199
2010-01-22 19:17:48 +00:00
Chris Lattner
784036d536
rename addComment -> AddComment for consistency.
...
llvm-svn: 94190
2010-01-22 18:21:35 +00:00
Benjamin Kramer
13b3fa1f36
Simplify some uses of str(n)cmp with StringRef.
...
llvm-svn: 94189
2010-01-22 18:21:23 +00:00
Chris Lattner
df1b7b6164
Add the ability for MCStreamer to emit comments on the same line as directives.
...
Switch over the asm-verbose comment for double values to use it. We now get:
_x:
.long 343597384 ## double 1.231200e+02
.long 1079953326
For example, note that the comment is on the same line as the .long. Woo.
llvm-svn: 94166
2010-01-22 07:29:22 +00:00
Chris Lattner
5eb0c8a2bd
pass "-fasm-verbose" into createAsmStreamer.
...
llvm-svn: 94165
2010-01-22 07:06:15 +00:00
Chris Lattner
c0e2ef62fa
move some files out of the llvm-mc tool into the MCParser library so
...
other tools can link it.
llvm-svn: 94131
2010-01-22 01:58:08 +00:00
Chris Lattner
9a84d96edf
create a new MCParser library and move some stuff into it.
...
llvm-svn: 94129
2010-01-22 01:44:57 +00:00
Sean Callanan
cddf628d31
Modified MCAsmLexer to return error information upward
...
rather than printing it locally, reducing its dependence
on SourceMgr.
llvm-svn: 94041
2010-01-20 22:18:24 +00:00
Chris Lattner
6ea74a85bb
give createAsmStreamer an 'isLittleEndian' argument.
...
llvm-svn: 93986
2010-01-20 06:39:07 +00:00
Chris Lattner
f25a9e1265
revert 93934, removing the MCAsmInfo endianness bit. I can't
...
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.
llvm-svn: 93985
2010-01-20 06:34:14 +00:00
Chris Lattner
8e3badb9a7
give MCAsmInfo a 'has little endian' bit. This is unfortunate, but
...
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.
I may change this in the future, we'll see how it works out.
llvm-svn: 93934
2010-01-19 22:42:28 +00:00
Chris Lattner
20c1857075
add a new EmitIntValue method that MCStreamer impls can optionally define
...
and that clients can use.
llvm-svn: 93923
2010-01-19 22:03:38 +00:00
Chris Lattner
2842ccd76f
eliminate AsmPrinter::EmitZeros: just use MCStreamer directly.
...
llvm-svn: 93918
2010-01-19 21:51:22 +00:00
Sean Callanan
4bb95fd7d6
Promoted the getTok() method to MCAsmParser so that
...
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.
llvm-svn: 93916
2010-01-19 21:44:56 +00:00
Sean Callanan
7fa5ebbed0
Propagated the parser-side Lex function's declaration to
...
MCAsmParser, and changed the target-specific AsmParsers
to use it.
llvm-svn: 93900
2010-01-19 20:27:46 +00:00
Chris Lattner
336c2b0d47
Generalize mcasmstreamer data emission APIs to take an address space
...
identifier. There is no way to work around it.
llvm-svn: 93896
2010-01-19 19:46:13 +00:00
Chris Lattner
f26d29e436
add a "MCStreamer::EmitFill" method, and move the default implementation
...
(which just iteratively emits bytes) to MCStreamer.
llvm-svn: 93888
2010-01-19 18:45:47 +00:00
Chris Lattner
50636e0db8
remove MAI::ZeroDirectiveSuffix, which is only used by MASM,
...
which we don't support anymore.
llvm-svn: 93886
2010-01-19 18:37:01 +00:00
Chris Lattner
15e2a64ec2
stop using the .lcomm pseudoop on darwin, instead, directly use the
...
.zerofill directive. Streamerize its generation.
llvm-svn: 93868
2010-01-19 06:25:51 +00:00
Chris Lattner
f0edf967c7
hookize the cygwin ".linkonce" directive.
...
llvm-svn: 93855
2010-01-19 05:08:13 +00:00
Chris Lattner
7351e3a364
add a bool for whether .lcomm takes an alignment instead of basing this on "isdarwin".
...
llvm-svn: 93852
2010-01-19 04:48:20 +00:00
Chris Lattner
3821a5f168
move production of .reference directives for static ctor/dtor list on
...
darwin into common code.
llvm-svn: 93849
2010-01-19 04:34:02 +00:00
Chris Lattner
63ef960b83
make TLOF subclassify BSS based on linkage type into private, external
...
and everything else (weak).
llvm-svn: 93846
2010-01-19 04:15:51 +00:00
Chris Lattner
77f12b9ee0
introduce a section kind for common linkage. Use this to slightly
...
simplify and commonize some of the asmprinter logic for globals.
This also avoids printing the MCSection for .zerofill, which broke
the llvm-gcc build.
llvm-svn: 93843
2010-01-19 02:48:26 +00:00
Chris Lattner
816fcd1287
Cleanup handling of .zerofill on darwin:
...
1. TargetLoweringObjectFileMachO should decide if something
goes in zerofill instead of having every target do it.
2. TargetLoweringObjectFileMachO should assign said symbols to
the right MCSection, the asmprinters should just emit to the
right section.
3. Since all zerofill stuff goes through mcstreamer anymore,
MAI can have a bool "haszerofill" instead of having the textual
directive to emit.
llvm-svn: 93838
2010-01-19 02:09:44 +00:00
Chris Lattner
40f9b01ab5
switch x86 zerofill emission over to use MCStreamer.
...
llvm-svn: 93702
2010-01-18 01:21:08 +00:00
Chris Lattner
86287085ba
remove the MAI argument to MCExpr::print and switch overthing to use << when printing them.
...
llvm-svn: 93699
2010-01-18 00:37:40 +00:00
Chris Lattner
6f360c3c91
now that MCSymbol::print doesn't use it's MAI argument, we can
...
remove it and change all the code that prints MCSymbols to use
<< instead, which is much simpler and cleaner.
llvm-svn: 93695
2010-01-17 21:43:43 +00:00
Chris Lattner
f7c6508544
Get MCSymbol out of the mangling business, and move all the logic
...
to Mangler. Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.
This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.
llvm-svn: 93690
2010-01-17 19:23:46 +00:00
Chris Lattner
d6b351119b
fix a bug in range information for $42, eliminate an
...
unneeded argument from ParseExpression.
llvm-svn: 93536
2010-01-15 19:39:23 +00:00
Chris Lattner
836cf5d129
extend MCAsmParser::ParseExpression and ParseParenExpression
...
to return range information for subexpressions. Use this to
provide range info for several new X86Operands.
llvm-svn: 93534
2010-01-15 19:28:38 +00:00
Jeffrey Yasskin
0a22bdac8d
Make sure include/llvm/MC/MCParsedAsmOperand.h can be compiled alone.
...
llvm-svn: 93492
2010-01-15 00:41:53 +00:00
Chris Lattner
eceb54e9c2
add virtual methods to get the start/end of a MCParsedAsmOperand,
...
the default implementation returns "unknown".
llvm-svn: 93470
2010-01-14 22:29:57 +00:00
Chris Lattner
ceabb11a5e
prune #includes in TargetAsmParser.h
...
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.
llvm-svn: 93457
2010-01-14 21:32:45 +00:00
Chris Lattner
001a94a0e3
introduce the MCParsedAsmOperand class.
...
llvm-svn: 93454
2010-01-14 21:20:55 +00:00
Chris Lattner
9498bee8a3
expose a static function as a static method on the MCSymbol class.
...
llvm-svn: 93350
2010-01-13 21:09:59 +00:00
Douglas Gregor
f39dd74a3f
Fix a bunch of little errors that Clang complains about when its being pedantic
...
llvm-svn: 91764
2009-12-19 07:05:23 +00:00
Daniel Dunbar
4daaf9d3f4
Pass StringRef by value.
...
llvm-svn: 86251
2009-11-06 10:58:06 +00:00
Dan Gohman
acbd7911fb
Remove a redundant copy constructor.
...
llvm-svn: 85547
2009-10-30 00:14:33 +00:00
Chandler Carruth
766362c707
Move DataTypes.h to include/llvm/System, update all users. This breaks the last
...
direct inclusion edge from System to Support.
llvm-svn: 85086
2009-10-26 01:35:46 +00:00