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866 Commits

Author SHA1 Message Date
Chris Lattner
e46549ed67 teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
llvm-svn: 94259
 2010-01-23 00:15:00 +00:00
Chris Lattner
639c136993 Changes to fix buffering that I forgot to commit with previous patch. 
llvm-svn: 94222
 2010-01-22 21:16:10 +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
af1c74d7e1 add comment support to the rest of the directives. 
llvm-svn: 94168
 2010-01-22 07:36:39 +00:00
Chris Lattner
e773b145a2 stop using strtoll, it gives windows heartburn. 
llvm-svn: 94167
 2010-01-22 07:34:12 +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
276811b58a Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
 2010-01-22 06:49:46 +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
84c0345065 forgot to svn add these, doh. 
llvm-svn: 94130
 2010-01-22 01:55:10 +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
Chris Lattner
c7a4cc225b don't forget to initialize an instance variable! 
llvm-svn: 94021
 2010-01-20 20:48:59 +00:00
Chris Lattner
ffc364d7e2 use getGlobalDirective(), don't hardcode .globl. PR6093 
llvm-svn: 94006
 2010-01-20 17:50:30 +00:00
Chris Lattner
1d3b05933f make mcasmstreamer handle expanding 8 byte integer constants to 
4-byte constants if .quad isn't supported.  Switch a bunch of
methods used by the dwarf writer to use OutStreamer.EmitIntValue.

llvm-svn: 93987
 2010-01-20 06:45:39 +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
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
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
b98efb6e76 mcstreamerize AsmPrinter::EmitZeros, at least when emitting to the 
default address space.

llvm-svn: 93890
 2010-01-19 18:58:52 +00:00
Chris Lattner
7c3ff46d45 add an MCAsmStreamer::EmitFill specialization of EmitFill that 
emits one directive instead of N.  Not doing this would be a
significant regression on the # bytes generated by .fill.

llvm-svn: 93889
 2010-01-19 18:52:28 +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
e339d60351 mc'ize some stuff, don't comment out .lcomm directive in -fverbose-asm mode. 
llvm-svn: 93860
 2010-01-19 06:01:04 +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
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
Nate Begeman
3c96073ce7 Remove this fixme, looking at the linker source, all targets pad to 4 bytes. 
llvm-svn: 93835
 2010-01-19 01:32:44 +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
bd2eeabe74 rename NameNeedsEscaping -> NameNeedsQuoting, eliminate the check 
for first character which is a digit, mangler would have taken care
of this already.

llvm-svn: 93694
 2010-01-17 20:11:03 +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
Nate Begeman
04da97bd5e Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass. 
llvm-svn: 93670
 2010-01-17 03:49:01 +00:00
Chris Lattner
493580bb5c unbreak the build, grr symlinks. 
llvm-svn: 93539
 2010-01-15 19:51:05 +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
Chris Lattner
c073f1009a tidy 
llvm-svn: 93352
 2010-01-13 21:21:29 +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
David Greene
ed1e2c4453 Change errs() to dbgs(). 
llvm-svn: 92635
 2010-01-05 01:28:22 +00:00
David Greene
d4ba9148d2 Change errs() to dbgs(). 
llvm-svn: 92634
 2010-01-05 01:28:17 +00:00
David Greene
b0b06156ab Change errs() to dbgs(). 
llvm-svn: 92632
 2010-01-05 01:28:10 +00:00
David Greene
718ca3f5b6 Change errs() to dbgs(). 
llvm-svn: 92630
 2010-01-05 01:28:07 +00:00
Daniel Dunbar
4daaf9d3f4 Pass StringRef by value. 
llvm-svn: 86251
 2009-11-06 10:58:06 +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
Chris Lattner
df848440d1 add a twine version of MCContext::GetOrCreateSymbol. 
llvm-svn: 84561
 2009-10-19 22:49:00 +00:00
Daniel Dunbar
2be596c127 MC: Set symbol values in MachO MCStreamer. 
llvm-svn: 84236
 2009-10-16 01:58:23 +00:00
Daniel Dunbar
4943610506 Minor formatting tweaks. 
llvm-svn: 84235
 2009-10-16 01:58:15 +00:00
Daniel Dunbar
0df659c00b MC: Switch assembler API to using MCExpr instead of MCValue. 
llvm-svn: 84234
 2009-10-16 01:58:03 +00:00
Daniel Dunbar
022b59a0b5 MC: Remove unneeded context argument to MCExpr::Evaluate*. 
llvm-svn: 84233
 2009-10-16 01:57:52 +00:00
Daniel Dunbar
af3162e523 MC: Tweak variable assignment diagnostics, and make reassignment of non-absolute 
variables and symbols invalid.

llvm-svn: 84232
 2009-10-16 01:57:39 +00:00
Daniel Dunbar
a4df6e46a4 MC: When parsing a variable reference, substitute absolute variables immediately 
since they are allowed to be redefined.

llvm-svn: 84230
 2009-10-16 01:34:54 +00:00
Daniel Dunbar
6b7edc035b MC: Move assembler variable values from MCContext to MCSymbol. 
llvm-svn: 84229
 2009-10-16 01:33:57 +00:00
Daniel Dunbar
c5165c4258 MC: Switch MCContext value table to storing MCExprs. 
llvm-svn: 84228
 2009-10-16 01:33:11 +00:00
Kevin Enderby
ef201aaa04 Fixed MCSectionMachO::ParseSectionSpecifier to allow an attribute of "none" so 
that a symbol stub section with no attributes can be parsed as in:
.section __TEXT,__picsymbolstub4,symbol_stubs,none,16

llvm-svn: 83488
 2009-10-07 20:57:20 +00:00
Edward O'Callaghan
8b7189e234 No newline at end of files. 
llvm-svn: 83318
 2009-10-05 18:43:19 +00:00
Chris Lattner
fd910fd2f7 eliminate a use of strtoul. 
llvm-svn: 82382
 2009-09-20 06:58:54 +00:00
Anton Korobeynikov
fb7ac49d96 Allow symbols to start from the digit if target requests it. This allows, e.g. pinning 
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

llvm-svn: 82227
 2009-09-18 16:57:42 +00:00
Chris Lattner
7b52d90c9e Big change #1 for personality function references: 
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding
fields from MAI: they aren't part of the asm syntax, they are
related to the structure of the object file.

To replace their functionality, add a new 
TLOF::getSymbolForDwarfGlobalReference method which asks targets
to decide how to reference a global from EH in a pc-relative way.

The default implementation just returns the symbol.  The default
darwin implementation references the symbol through an indirect
$non_lazy_ptr stub.  The bizarro x86-64 darwin specialization
handles the weird "foo@GOTPCREL+4" hack.

DwarfException.cpp now uses this to emit the reference to the
symbol in the right way, and this also eliminates another 
horrible hack from DwarfException.cpp:

-    if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL"))
-      O << "-" << MAI->getPCSymbol();

llvm-svn: 81991
 2009-09-16 01:46:41 +00:00
Chris Lattner
006af669b4 add a helper method for creating MCSymbol and MCSymbolRefExpr at 
the same time.

llvm-svn: 81984
 2009-09-16 01:26:31 +00:00
Chris Lattner
249d5fe8b9 remove some horrible MAI hooks which fortunately turn out to be always empty. 
llvm-svn: 81946
 2009-09-15 23:11:32 +00:00
Daniel Dunbar
d729752a24 Update CMake. 
llvm-svn: 81757
 2009-09-14 05:22:47 +00:00
Chris Lattner
4a33f01892 Change MCAsmStreamer to take an MCInstPrinter instead of a 
full AsmPrinter, and change TargetRegistry to keep track
of registered MCInstPrinters.

llvm-mc is still linking in the entire
target foo to get the code emitter stuff, but this is an
important step in the right direction.

llvm-svn: 81754
 2009-09-14 03:02:37 +00:00
Chris Lattner
27a850eb70 add a new MCInstPrinter class, move the (trivial) MCDisassmbler ctor inline. 
llvm-svn: 81745
 2009-09-14 01:43:38 +00:00
Chris Lattner
8724d994d0 'printMCInst' doesn't print newlines after instructions anymore. 
llvm-svn: 81723
 2009-09-13 22:24:34 +00:00
Chris Lattner
cb05a87447 remove MAI::JumpTableSpecialLabelPrefix now that MAI 
has real information about linker private linkage.

llvm-svn: 81695
 2009-09-13 19:02:16 +00:00
Chris Lattner
89e5731659 fix MCSymbol printing on darwin to exactly match the mangler (handling of \n and " in a symbol name). 
llvm-svn: 81683
 2009-09-13 18:11:09 +00:00
Chris Lattner
e26af94cd4 Make the MC symbol printer and llvm::Mangler exactly agree on mangling 
for systems that don't support quoting (PR4966).

llvm-svn: 81682
 2009-09-13 18:04:46 +00:00
Chris Lattner
53cca8590c eliminate the "MBBLabel" MCOperand type, and just use a MCSymbol for 
MBB labels like everything else.

llvm-svn: 81628
 2009-09-12 20:45:03 +00:00
Ted Kremenek
e98d47cdfe Update CMake files. 
llvm-svn: 81577
 2009-09-11 21:49:45 +00:00
Chris Lattner
9975e8e31a canonicalize namespace gymnastics 
llvm-svn: 81402
 2009-09-09 23:46:42 +00:00
Sean Callanan
7b789f8cba Added an abstract superclass, MCDisassembler, for 
all disassemblers.

Modified the MemoryObject to support 64-bit address
spaces, regardless of the LLVM process's address
width.

Modified the Target class to allow extraction of a
MCDisassembler.

llvm-svn: 81392
 2009-09-09 22:49:13 +00:00
Chris Lattner
3b44c382d3 allow @ in symbol names without quoting the identifier. This 
allows things like @PLT without quotes.

llvm-svn: 81296
 2009-09-09 00:14:09 +00:00
Chris Lattner
77fdd07c93 parenthesize symbol names that start with $, fixing X86/dollar-name.ll with 
the new asmprinter.

llvm-svn: 81269
 2009-09-08 23:20:50 +00:00
Chris Lattner
bcf8dbfbcb Print "X-42" instead of "X+-42". 
llvm-svn: 81203
 2009-09-08 06:37:35 +00:00
Chris Lattner
a07820641d make formatting of expressions more closely match the existing asmprinter. 
llvm-svn: 81202
 2009-09-08 06:34:07 +00:00
Chris Lattner
141b519df0 tidy whitespace. 
llvm-svn: 81201
 2009-09-08 06:27:48 +00:00
Chris Lattner
6fce76a106 fix MCSymbol printing to exactly match the normal mangler rules so 
we can diff .s files.

llvm-svn: 80894
 2009-09-03 05:57:47 +00:00
Chris Lattner
d4f19950e3 Thread an MCAsmInfo pointer through the various MC printing APIs, 
and fix a few things using << on MCSymbols to use ->print(). No
functionality change other than unbreaking my previous patch.

llvm-svn: 80890
 2009-09-03 05:46:51 +00:00
Chris Lattner
2f6f020b42 inline insertion operators. 
llvm-svn: 80888
 2009-09-03 05:33:01 +00:00
Chris Lattner
25817ab343 output alignment value in hex so that we get: 
.align 3, 0x90
instead of,
  .align 3, 144

suggested by eric.

llvm-svn: 80875
 2009-09-03 04:01:10 +00:00
Daniel Dunbar
fbe8d5891a llvm-mc: Store MCSymbolData value as a pointer (to make MSVC happy). 
llvm-svn: 80652
 2009-09-01 04:09:03 +00:00
Daniel Dunbar
3a44b6da61 llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues. 
llvm-svn: 80578
 2009-08-31 08:09:28 +00:00
Daniel Dunbar
b897e807c4 llvm-mc: Simplify EmitAssignment ('.set' is identical to '='). 
llvm-svn: 80577
 2009-08-31 08:09:09 +00:00
Daniel Dunbar
fcb32716eb llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue. 
Also, use MCInst::print instead of custom code in MCAsmPrinter.

llvm-svn: 80575
 2009-08-31 08:08:38 +00:00
Daniel Dunbar
be245a258c llvm-mc: Make MCSymbolData symbol member const. 
llvm-svn: 80573
 2009-08-31 08:08:06 +00:00
Daniel Dunbar
1689464a71 llvm-mc: Add MCContext to MCAssembler. 
llvm-svn: 80572
 2009-08-31 08:07:55 +00:00
Daniel Dunbar
4e5556dbd1 llvm-mc: Add MCExpr::{dump,print}. 
llvm-svn: 80570
 2009-08-31 08:07:33 +00:00
Daniel Dunbar
053a5f22a0 llvm-mc: Switch MCExpr construction to using static member functions, and taking the MCContext (which now owns all MCExprs). 
llvm-svn: 80569
 2009-08-31 08:07:22 +00:00
Daniel Dunbar
b882c70ff2 llvm-mc: Move AsmExpr into MC lib (as MCExpr). 
llvm-svn: 80567
 2009-08-31 08:06:59 +00:00
Daniel Dunbar
bc61205626 llvm-mc: MCStreamer cleanups. - Remove EmitLocalSymbol, this is unsupported for now. 
- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

llvm-svn: 80484
 2009-08-30 06:17:16 +00:00
Daniel Dunbar
e3cf39c644 llvm-mc: .lsym is more unsupported than unimplemented, pending a use case appearing. 
Also, all one of the file level flags are implemented.

llvm-svn: 80352
 2009-08-28 07:08:47 +00:00
Daniel Dunbar
eec2764d55 llvm-mc: Support .comm emission. 
llvm-svn: 80351
 2009-08-28 07:08:35 +00:00
Daniel Dunbar
5749caa698 llvm-mc: Support .zerofill emission. 
- I'm still trying to figure out the cleanest way to implement this and match the assembler, currently there are some substantial differences.

llvm-svn: 80347
 2009-08-28 05:49:21 +00:00
Daniel Dunbar
1935aed414 llvm-mc: Tweak section alignment and size computation to match 'as' closer. 
llvm-svn: 80345
 2009-08-28 05:49:04 +00:00
Daniel Dunbar
8aa87b9f63 llvm-mc: Factor getSectionData out of SwitchSection. 
llvm-svn: 80344
 2009-08-28 05:48:54 +00:00
Daniel Dunbar
09ed9fabde llvm-mc: Emit .lcomm as .zerofill. 
llvm-svn: 80343
 2009-08-28 05:48:46 +00:00
Daniel Dunbar
aace3b9577 llvm-mc: Add const to EmitZeroFill section argument. 
llvm-svn: 80341
 2009-08-28 05:48:22 +00:00
Daniel Dunbar
7cf576d72f llvm-mc: Fix thinko in emitting values. 
llvm-svn: 80340
 2009-08-28 05:48:10 +00:00
Daniel Dunbar
e30a44267c llvm-mc/Mach-O: Add MCCodeEmitter support, for encoding instructions. 
- No relocations yet, of course.

llvm-svn: 80235
 2009-08-27 08:17:51 +00:00
Daniel Dunbar
b11e3eb82f llvm-mc: Print encodings after the instruction, and only when we have an asm 
printer.

llvm-svn: 80233
 2009-08-27 07:58:57 +00:00
Daniel Dunbar
ed9714d9eb Add {MCInst,MCOperand}::{print,dump} 
llvm-svn: 80231
 2009-08-27 07:57:12 +00:00
Daniel Dunbar
abcf0c83cc Update CMake 
llvm-svn: 80195
 2009-08-27 02:08:37 +00:00
Daniel Dunbar
4316774ac1 llvm-mc: Tweak MCCodeEmitter skeleton. 
llvm-svn: 80193
 2009-08-27 01:34:22 +00:00
Daniel Dunbar
fd042a5019 Sketch TargetRegistry support for MCCodeEmitter abstract interface. 
- Of course, nothing actually can provide this interface yet.

llvm-svn: 80188
 2009-08-27 00:51:57 +00:00
Daniel Dunbar
efbcc2daf9 Try to make MSVC just a little happier. 
llvm-svn: 80187
 2009-08-27 00:38:04 +00:00
Daniel Dunbar
1f70368155 llvm-mc/Mach-O: Don't put assembler temporary labels in the symbol table. 
- I moved section creation back into AsmParser. I think policy decisions like
   this should be pushed higher, not lower, when possible (in addition the
   assembler has flags which change this behavior, for example).

llvm-svn: 80162
 2009-08-26 22:13:22 +00:00
Daniel Dunbar
5e9b7483b7 llvm-mc/Mach-O: Set .subsections_via_symbols flag properly. 
llvm-svn: 80144
 2009-08-26 21:22:22 +00:00
Daniel Dunbar
8c38017009 llvm-mc/Mach-O: Add support for relocations. 
- I haven't really tried to find the "right" way to store the fixups or apply
   them, yet. This works, but isn't particularly elegant or fast.

 - Still no evaluation support, so we don't actually ever not turn a fixup into
   a relocation entry.

llvm-svn: 80089
 2009-08-26 13:58:10 +00:00
Daniel Dunbar
45d03f2bbb llvm-mc/Mach-O: Move symbol indices into the MCSymbolData structure. 
llvm-svn: 80088
 2009-08-26 13:57:54 +00:00
Daniel Dunbar
f7a22e19cf llvm-mc: Add symbol entries for undefined symbols used in .fill and .org. 
llvm-svn: 80086
 2009-08-26 13:57:37 +00:00
Daniel Dunbar
168f849552 llvm-mc: Change MCContext value table to take const MCSymbol*s. 
llvm-svn: 80079
 2009-08-26 09:16:57 +00:00
Daniel Dunbar
982f304aac llvm-mc/Mach-O: Add section padding where needed (to align the next section). 
Also, simplify some of Mach-O writer code which can now use section addresses.

llvm-svn: 80067
 2009-08-26 04:13:32 +00:00
Daniel Dunbar
a36793b5b5 llvm-mc/Mach-O: Set addresses for symbols. 
llvm-svn: 80065
 2009-08-26 02:48:04 +00:00
Daniel Dunbar
6bb1f76970 llvm-mc: Improve indirect symbol support (add the indirect index table). 
llvm-svn: 80059
 2009-08-26 00:18:21 +00:00
Bill Wendling
a6284af6bb Revert last patch. We need to put this into TargetLowering. There will be a lot 
of EH stuff going into there, so we can wait to add them all then.

llvm-svn: 80036
 2009-08-25 21:31:39 +00:00
Daniel Dunbar
d9b0efd553 llvm-mc: Add statistic for number of fragments emitted by the assembler. 
llvm-svn: 80033
 2009-08-25 21:10:45 +00:00
Bill Wendling
4a8c3d686f Add the #include here. 
llvm-svn: 80032
 2009-08-25 21:09:50 +00:00
Bill Wendling
4dd702ce66 Add a target asm info hook to specify that particular bits of data in the FDE 
should be forced to 32-bits (.long) even on 64-bit architectures. Darwin wants
these bits to be 64-bits (.quad). However, other platforms may disagree.

This is just the info right now and is part of a work-in-progress which needs
this. We'll add the actual *use* of this soon.

llvm-svn: 80024
 2009-08-25 20:21:17 +00:00
Daniel Dunbar
344ea15334 llvm-mc/Mach-O: Preliminary support for indirect symbols. 
- The indirect table itself isn't being filled in yet.

 - This isn't factored properly and is rather FIXMEd, but at the moment I'm more
   focused on figuring out what it needs to do.

llvm-svn: 79910
 2009-08-24 11:56:58 +00:00
Daniel Dunbar
937b745b68 llvm-mc/Mach-O: Support symbol attributes. 
- This is mostly complete, the main thing missing is .indirect_symbol support
   (which would be straight-forward, except that the way it is implemented in
   'as' makes getting an exact .o match interesting).

llvm-svn: 79899
 2009-08-24 08:40:12 +00:00
Daniel Dunbar
82bf59da54 llvm-mc: Tweak undefined symbol handling. 
llvm-svn: 79898
 2009-08-24 08:39:57 +00:00
Chris Lattner
39262eb119 prune the #includes in raw_ostream.h by moving a 
member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.

llvm-svn: 79885
 2009-08-24 03:52:50 +00:00
Benjamin Kramer
4a7695a622 Update CMake build, unbreak linux build. 
llvm-svn: 79779
 2009-08-22 22:07:08 +00:00
Chris Lattner
8d06945fff rename TAI -> MAI, being careful not to make MAILJMP instructions :) 
llvm-svn: 79777
 2009-08-22 21:43:10 +00:00
Chris Lattner
384b7d24a9 rename COFFMCAsmInfo -> MCAsmInfoCOFF, likewise for darwin. 
llvm-svn: 79773
 2009-08-22 21:03:30 +00:00
Chris Lattner
9f2ba3294f move the MCAsmInfo .cpp/.h files into the right 
directories and rename them.

llvm-svn: 79768
 2009-08-22 20:58:17 +00:00
Chris Lattner
5d8af49626 Rename TargetAsmInfo (and its subclasses) to MCAsmInfo. 
llvm-svn: 79763
 2009-08-22 20:48:53 +00:00
Chris Lattner
29213a76e4 prune some redundant #includes. 
llvm-svn: 79746
 2009-08-22 19:35:08 +00:00
Chris Lattner
d786e8929e tweak #includes 
llvm-svn: 79744
 2009-08-22 19:19:12 +00:00
Daniel Dunbar
4c3cf93d1d llvm-mc/Mach-O: Improve symbol table support: 
- Honor .globl.

 - Set symbol type and section correctly ('nm' now works), and order symbols
   appropriately.

 - Take care to the string table so that the .o matches 'as' exactly (for ease
   of testing).

llvm-svn: 79740
 2009-08-22 11:41:10 +00:00
Daniel Dunbar
d22c0d4d49 llvm-mc/Mach-O: Sketch symbol table support. 
- The only .s syntax this honors right now is emitting labels, and some parts
   of the symbol table generation are wrong or faked.

 - This is enough to get nm to report such symbols... incorrectly, but still.

Also, fixed byte emission to extend the previous fragment if possible.

llvm-svn: 79739
 2009-08-22 10:13:24 +00:00
Daniel Dunbar
2b6db55380 llvm-mc/Mach-O: Move more logic for writing the Mach-O file into the writer 
class, and kill off MCSectionData::FileOffset.

llvm-svn: 79735
 2009-08-22 08:28:27 +00:00
Daniel Dunbar
b367c1724d llvm-mc: Rename / redefine MCFragment::FileOffset to MCFragment::Offset (the 
section offset).

llvm-svn: 79734
 2009-08-22 08:27:54 +00:00
Daniel Dunbar
2bb8df3b5d llvm-mc: Clean up some handling of symbol/section association to be more correct 
(external was really undefined and there wasn't an explicit representation for
absolute symbols).
 - This still needs some cleanup to how the absolute "pseudo" section is dealt
   with, but I haven't figured out the nicest approach yet.

llvm-svn: 79733
 2009-08-22 07:22:36 +00:00
Daniel Dunbar
aa60fad397 llvm-mc/Mach-O: Support .o emission for .org and .align. 
llvm-svn: 79684
 2009-08-21 23:07:38 +00:00
Daniel Dunbar
ca9ad524dc llvm-mc/Mach-O: Support byte and fill value emission. 
llvm-svn: 79652
 2009-08-21 18:29:01 +00:00
Benjamin Kramer
a9afa949a7 Update CMakeLists. 
llvm-svn: 79617
 2009-08-21 11:28:56 +00:00
Daniel Dunbar
7e81ff0f87 llvm-mc: Start MCAssembler and MCMachOStreamer. 
- Together these form the (Mach-O) back end of the assembler.

 - MCAssembler is the actual assembler backend, which is designed to have a
   reasonable API. This will eventually grow to support multiple object file
   implementations, but for now its Mach-O/i386 only.

 - MCMachOStreamer adapts the MCStreamer "actions" API to the MCAssembler API,
   e.g. converting the various directives into fragments, managing state like
   the current section, and so on.

 - llvm-mc will use the new backend via '-filetype=obj', which may eventually
   be, but is not yet, since I hear that people like assemblers which actually
   assemble.

 - The only thing that works at the moment is changing sections. For the time
   being I have a Python Mach-O dumping tool in test/scripts so this stuff can
   be easily tested, eventually I expect to replace this with a real LLVM tool.

 - More doxyments to come.

I assume that since this stuff doesn't touch any of the things which are part of
2.6 that it is ok to put this in not so long before the freeze, but if someone
objects let me know, I can pull it.

llvm-svn: 79612
 2009-08-21 09:11:24 +00:00
Chris Lattner
aeed3004c1 fix asmstreaming of 2/4 byte elements with pow-2 alignments. 
llvm-svn: 79408
 2009-08-19 06:35:36 +00:00
Chris Lattner
57b873fda0 switch asmprinter to emit alignments through OutStreamer. 
llvm-svn: 79406
 2009-08-19 06:12:02 +00:00
Chris Lattner
9cbc9c2d13 eliminate AsmPrinter::SwitchToSection and just have clients 
talk to the MCStreamer directly instead.

llvm-svn: 79405
 2009-08-19 05:49:37 +00:00
Chris Lattner
bc4e7e0815 null streamer needs to maintain the current section as well. 
llvm-svn: 79343
 2009-08-18 16:46:29 +00:00
Chris Lattner
b82fc63e02 Make AsmStreamer maintain a notion of the current section, pushing it up from the 
MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.

llvm-svn: 79324
 2009-08-18 06:15:16 +00:00
Chris Lattner
fc68e5368b change AsmPrinter to switch sections using AsmStreamer instead of 
doing it directly.  This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.

llvm-svn: 79227
 2009-08-17 05:49:08 +00:00
Chris Lattner
69a19050c0 give MCAsmStreamer a TargetAsmInfo. 
llvm-svn: 79222
 2009-08-17 04:23:44 +00:00
Chris Lattner
a1acc7cab5 formatting cleanups, no functionality change. 
llvm-svn: 79221
 2009-08-17 04:17:34 +00:00
Chris Lattner
3665e2058e add support for target-specific ELF section flags, add a new MCSectionXCore 
class which represents the XCore cp/dp section flags.  No functionality
change yet.

llvm-svn: 79077
 2009-08-15 05:56:11 +00:00
Daniel Dunbar
3c9ab92a24 llvm-mc: Fix bugs where bytes were unintentionally being printed as signed. 
- We now print all of 403.gcc cleanly (llvm-mc -> 'as' as diffed to 'as'), minus two 
   'rep;movsl' instructions (which I missed before).

llvm-svn: 79031
 2009-08-14 19:59:24 +00:00
Bruno Cardoso Lopes
e298b64a93 *try* to use a better name to describe how common symbols are marked on the elf object file. 
llvm-svn: 79029
 2009-08-14 19:45:38 +00:00
Daniel Dunbar
b9d9ce9513 llvm-mc: When handling a .set, make sure to print subsequent references to the 
symbol as the symbol name itself, not the expression it was defined to. These
have different semantics due to the quirky .set behavior (which absolutizes an
expression that would otherwise be treated as a relocation).

llvm-svn: 79025
 2009-08-14 19:10:46 +00:00
Daniel Dunbar
b00271e266 llvm-mc: zerofill shouldn't print quotes around the section,segment. 
llvm-svn: 79017
 2009-08-14 18:51:45 +00:00
Oscar Fuentes
ed9c7f2749 CMake: updated list of source files for library MC. 
llvm-svn: 78988
 2009-08-14 04:14:45 +00:00
Daniel Dunbar
dc5840c57c Update llvm-mc / MCAsmStreamer to print the instruction using the actual target 
specific printer (this only works on x86, for now).
 - This makes it possible to do some correctness checking of the parsing and
   matching, since we can compare the results of 'as' on the original input, to
   those of 'as' on the output from llvm-mc.

 - In theory, we could now have an easy ATT -> Intel syntax converter. :)

llvm-svn: 78986
 2009-08-14 03:48:55 +00:00
Daniel Dunbar
259bc4b0e7 Add MCSymbol::{print, dump} 
llvm-svn: 78983
 2009-08-14 03:41:23 +00:00
Daniel Dunbar
127e3bc13f Add MCValue::{print, dump} 
llvm-svn: 78982
 2009-08-14 03:11:09 +00:00
Daniel Dunbar
da9a46b9de llvm-mc: Move MCAsmToken::getLoc() into MC library where it belongs. 
llvm-svn: 78980
 2009-08-14 02:18:40 +00:00
Dan Gohman
3497fde219 Fix MCSectionELF::ShouldOmitSectionDirective's matching of .data and 
friends so that it doesn't match sections like .data.rel.local, which
should not be emitted as section directives.

llvm-svn: 78963
 2009-08-13 23:56:34 +00:00
Daniel Dunbar
d4c5293717 llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling. 
- Currently unused.

 - A few other random comment fixes lumped in.

llvm-svn: 78960
 2009-08-13 23:36:34 +00:00
Bruno Cardoso Lopes
98ffbd5041 Remove HasCrazyBSS and add a flag in TAI to indicate that '.section' 
must be emitted for PowerPC-Linux '.bss' section

llvm-svn: 78958
 2009-08-13 23:30:21 +00:00
Bruno Cardoso Lopes
15f3e9a5fa Add a method to return if the ELF section contains only common symbols! 
llvm-svn: 78937
 2009-08-13 21:08:56 +00:00
Bruno Cardoso Lopes
f2855aabec Change MCSectionELF to represent a section semantically instead of 
syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.

llvm-svn: 78890
 2009-08-13 05:07:35 +00:00
Chris Lattner
04f74d3510 sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF implementations. 
MCContext no longer maintains a string -> section map.

llvm-svn: 78874
 2009-08-13 00:37:15 +00:00
Chris Lattner
7ead5b498b add some comments: MCContext owns the MCSections, but it bump pointer allocates 
them, so it doesn't have to explicitly free them.

llvm-svn: 78870
 2009-08-13 00:21:53 +00:00
Chris Lattner
3e6da637f6 split MachO section handling stuff out to its out .h/.cpp file. 
llvm-svn: 78576
 2009-08-10 18:15:01 +00:00
Chris Lattner
cc70d578be Make the big switch: Change MCSectionMachO to represent a section *semantically* 
instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547
 2009-08-10 01:39:42 +00:00
Chris Lattner
4415a43b2f always end a section with \n on elf. 
llvm-svn: 78534
 2009-08-09 15:31:10 +00:00
Chris Lattner
9e2c3aa666 sink the 'name' and 'isdirective' state out of MCSection into its derived classes. 
This totally optimizes PIC16 sections by not having an 'isdirective' bit anymore!! ;-)

llvm-svn: 78517
 2009-08-08 23:39:42 +00:00
Chris Lattner
2849883bd5 1. Make MCSection an abstract class. 
2. Move section switch printing to MCSection virtual method which takes a
   TAI.  This eliminates textual formatting stuff from TLOF.
3. Eliminate SwitchToSectionDirective, getSectionFlagsAsString, and 
   TLOFELF::AtIsCommentChar.

llvm-svn: 78510
 2009-08-08 22:41:53 +00:00
Chris Lattner
53cc0d6439 make target-specific TLOF impls (except PIC16) create target-specific 
MCSection instances.

llvm-svn: 78500
 2009-08-08 20:52:13 +00:00
Chris Lattner
95ca008a43 stub out PECOFF/MachO/ELF MCSection classes 
llvm-svn: 78499
 2009-08-08 20:50:49 +00:00
Chris Lattner
79e9585304 Change SectionKind to be a property that is true of a *section*, it 
should have no state that is specific to particular globals in the
section.  In this case, it means the removal of the "isWeak" and
"ExplicitSection" bits.  MCSection uses the new form of SectionKind.

To handle isWeak, I introduced a new SectionInfo class, which is
SectionKind + isWeak, and it is used by the part of the code generator
that does classification of a specific global.

The ExplicitSection disappears.  It is moved onto MCSection as a new
"IsDirective" bit.  Since the Name of a section is either a section
or directive, it makes sense to keep this bit in MCSection.  Ultimately
the creator of MCSection should canonicalize (e.g.) .text to whatever
the actual section is.

llvm-svn: 77803
 2009-08-01 21:11:14 +00:00
Chris Lattner
04ae6629fe All MCSections are now required to have a SectionKind. 
llvm-svn: 77787
 2009-08-01 18:25:49 +00:00
Daniel Dunbar
a848745eb4 llvm-mc: Fix .s output to quote section & symbol names when necessary. 
llvm-svn: 77749
 2009-07-31 23:04:32 +00:00
Chris Lattner
a682cb61e7 split MCSection stuff out to its own .cpp file, add a new 
MCSectionWithKind subclass of MCSection.

llvm-svn: 77684
 2009-07-31 17:02:00 +00:00
Chris Lattner
610dfdece7 create sections with MCSection::Create instead of Context->getOrCreateSection. 
This is needed to allow polymorphic sections.

llvm-svn: 77680
 2009-07-31 16:43:49 +00:00
Daniel Dunbar
6e2f7db6b6 Expose Tokens to target specific assembly parsers. 
llvm-svn: 77337
 2009-07-28 17:58:44 +00:00
Daniel Dunbar
3edfc4bb16 llvm-mc: Implement .abort fully in the front end 
llvm-svn: 77272
 2009-07-27 23:20:52 +00:00
Daniel Dunbar
5f73e9d3f8 llvm-mc: Move AsmLexer::getCurStrVal to StringRef based API. 
- My DFS traversal of LLVM is, at least for now, nearly complete! :)

llvm-svn: 77258
 2009-07-27 21:49:56 +00:00
Daniel Dunbar
6de68a2544 Move MCContext and friends to StringRef based APIs. 
llvm-svn: 77251
 2009-07-27 21:22:30 +00:00
Kevin Enderby
f1c0daa6a7 Removed the DumpSymbolsandMacros and LoadSymbolsandMacros MCStreamer API as 
the parsing of the .dump and .load should be done in the assembly parser and
not have any need for an MCStreamer API.  Changed the code for now so these
just produce an error saying these specific directives are not yet implemented
since they are likely no longer used and may never need to be implemented.

llvm-svn: 76462
 2009-07-20 20:25:37 +00:00
Daniel Dunbar
2e4aeceacd Add MCAsmLexer interface. 
- This provides the AsmLexer interface to the target specific assembly parsers.

llvm-svn: 76460
 2009-07-20 20:01:54 +00:00
Daniel Dunbar
fca75cd98e Add MCAsmParser interface. 
- This provides the AsmParser interface to the target specific assembly
   parsers.

llvm-svn: 76453
 2009-07-20 18:55:04 +00:00
Ted Kremenek
ce3842ae4f Update CMake file. 
llvm-svn: 76264
 2009-07-17 23:50:26 +00:00
Daniel Dunbar
ab1316fbaf llvm-mc: Add -triple, and start fetching the target asm printer. 
llvm-svn: 76257
 2009-07-17 22:38:58 +00:00
Kevin Enderby
f641ecc6e8 Removed the SubsectionsViaSymbols MCStreamer API and replaced it with a generic 
EmitAssemblerFlag API which takes a value from the added AssemblerFlag
enumerated constants.

llvm-svn: 76087
 2009-07-16 17:56:39 +00:00
Chris Lattner
4939bd13ad implement .include in the lexer/parser instead of passing it into the streamer. 
llvm-svn: 75896
 2009-07-16 06:14:39 +00:00
Kevin Enderby
312f8559cb Added llvm-mc support for parsing the .dump and .load directives. 
llvm-svn: 75786
 2009-07-15 15:30:11 +00:00
Kevin Enderby
3e47cf1dda Added llvm-mc support for parsing the .include directive. 
llvm-svn: 75711
 2009-07-14 23:21:55 +00:00
Kevin Enderby
5821cee99b Added llvm-mc support for parsing the .lsym directive. 
llvm-svn: 75685
 2009-07-14 21:35:03 +00:00
Kevin Enderby
0b1331c43b Added llvm-mc support for parsing the .desc directive. 
llvm-svn: 75645
 2009-07-14 18:17:10 +00:00
Torok Edwin
f955a6ef49 llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Kevin Enderby
af095fcfb8 Added llvm-mc support for parsing the .abort directive. 
llvm-svn: 75545
 2009-07-13 23:15:14 +00:00
Kevin Enderby
a461788d6a add llvm-mc support for parsing the .subsections_via_symbols directive. 
llvm-svn: 75500
 2009-07-13 21:03:15 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
 2009-07-11 20:10:48 +00:00
Chris Lattner
84bf9fed2b add support for .zerofill, patch by Kevin Enderby! 
llvm-svn: 75301
 2009-07-10 22:20:30 +00:00
Chris Lattner
56638bb644 add llvm-mc support for parsing the .lcomm directive, patch by Kevin Enderby! 
llvm-svn: 75148
 2009-07-09 17:25:12 +00:00
Chris Lattner
2bea79b45b Implement parsing support for the .comm directive. Patch by 
Kevin Enderby!

llvm-svn: 74944
 2009-07-07 20:30:46 +00:00
Daniel Dunbar
efcb5ad32e Dump MCInsts in the MC .s printer, for now. 
llvm-svn: 74593
 2009-07-01 06:35:03 +00:00
Daniel Dunbar
72c0434597 llvm-mc: Parse .{,b,p2}align{,w,l} directives. 
llvm-svn: 74478
 2009-06-29 23:46:59 +00:00
Torok Edwin
28c47d108c Initialize CurSection in constructor. 
Not doing so causes some unittests to fail, because CurSection is uninitialized.

llvm-svn: 74442
 2009-06-29 19:59:10 +00:00
Daniel Dunbar
134907cafc Rename MCValue::getCst to getConstant and add MCValue::isConstant. 
llvm-svn: 74440
 2009-06-29 19:51:00 +00:00
Daniel Dunbar
3d3f776dc9 MC: Truncate values when printing, to keep 'as' happy. 
llvm-svn: 74201
 2009-06-25 21:03:18 +00:00
Daniel Dunbar
5f2b8ca5e4 Sketch streamer support for .align, .org functionality. 
llvm-svn: 74109
 2009-06-24 19:25:34 +00:00
Daniel Dunbar
082dc70875 We decided to not worry about Atoms for now, it should be straightforward to 
reintroduce them later.

Also, don't require MCSection* when creating a symbol.

llvm-svn: 74081
 2009-06-24 17:00:42 +00:00
Daniel Dunbar
4f0c4c766c MCStreamer: Add a few more "symbol attributes". 
llvm-svn: 74077
 2009-06-24 16:36:52 +00:00
Daniel Dunbar
691e6009bd MCStreamer: Test printing values. 
llvm-svn: 74076
 2009-06-24 16:05:35 +00:00
Duncan Sands
070da26191 Add new files to cmake list. 
llvm-svn: 74071
 2009-06-24 10:03:44 +00:00
Chris Lattner
61a6509f6a add trivial support for passing label definitions through the MCStreamer. 
This is suboptimal in several aspects, see the commented out assertion.
I need to talk to Daniel about this.

llvm-svn: 74057
 2009-06-24 04:31:49 +00:00
Daniel Dunbar
0e5051b251 Start MCAsmStreamer implementation. 
llvm-svn: 74044
 2009-06-24 01:03:06 +00:00
Daniel Dunbar
813ea8a8a7 Update for MCImm -> MCValue rename. 
llvm-svn: 74024
 2009-06-23 23:39:15 +00:00
Daniel Dunbar
323218db15 Start flushing out MCContext. 
- Lives inside new library lib/MC (LLVMMC.a)

llvm-svn: 74013
 2009-06-23 22:01:43 +00:00