Commit Graph

389 Commits

Author SHA1 Message Date
Chris Lattner 809ae81ff9 Add a new top-level MachO.h file for manifest constants, fixing
a layering violation from MC -> Target.

llvm-svn: 95113
2010-02-02 19:38:14 +00:00
Chris Lattner fc2e376a15 use EmitLinkage for functions as well as globals. One output
change is that we now use ".linkonce discard" for global variables
instead of ".linkonce samesize".  These should be the same, just less
strict.  If anyone is interested in mcizing MCSection for COFF targets,
this should be easy to fix.

llvm-svn: 94623
2010-01-26 23:51:52 +00:00
Chris Lattner ff234e09b9 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 dcb03f0f6b 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 3dd38a8112 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 3cde760023 mcstreamerize gprel32 emission.
llvm-svn: 94452
2010-01-25 21:28:50 +00:00
Chris Lattner 19bd039896 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 ccabcd7f85 remove JumpTableDirective, it is always null.
llvm-svn: 94445
2010-01-25 20:52:54 +00:00
Chris Lattner d45adf28de wirte up .file and .file to the mc asmparser.
llvm-svn: 94438
2010-01-25 19:02:58 +00:00
Chris Lattner 601ef33c77 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 bc696445e1 emit ELF .type directives through MCStreamer instead of doing it textually.
llvm-svn: 94436
2010-01-25 18:33:40 +00:00
Chris Lattner bc8f638531 add symbol attribute support for the ELF .type directive.
llvm-svn: 94435
2010-01-25 18:30:45 +00:00
Chris Lattner 91dac6d570 emit the .size directive for global variables on ELF through
mcstreamer.

llvm-svn: 94416
2010-01-25 07:52:13 +00:00
Chris Lattner 0375d2fbe7 all supported target now have aligned common support.
llvm-svn: 94413
2010-01-25 07:29:13 +00:00
Chris Lattner 9f7667e4ad coff targets support alignment on .comm
llvm-svn: 94410
2010-01-25 07:20:44 +00:00
Chris Lattner 823aed16f9 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.
llvm-svn: 94378
2010-01-24 20:43:08 +00:00
Chris Lattner 807a3bcbbb fix a parsing problem on instructions like:
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.

llvm-svn: 94345
2010-01-24 01:07:33 +00:00
Chris Lattner b1301f7bce mcize lcomm, simplify .comm, extend both to support 64-bit sizes.
llvm-svn: 94299
2010-01-23 07:47:02 +00:00
Chris Lattner 76bdea3290 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 0bfd279b37 mcize visibility directives.
llvm-svn: 94295
2010-01-23 06:53:23 +00:00
Chris Lattner 685508cf49 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 1deb09c28d mcstreamerize .no_dead_strip and .reference for static ctors/dtors.
llvm-svn: 94290
2010-01-23 05:51:36 +00:00
Chris Lattner 4225a7b987 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
Chris Lattner ded9af63bb teach MCAsmStreamer::EmitBytes to use .ascii and .asciz
llvm-svn: 94259
2010-01-23 00:15:00 +00:00
Chris Lattner 1386a88c95 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 a3eee3cb69 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 8fa0e35f97 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 e1d8a319a1 rename addComment -> AddComment for consistency.
llvm-svn: 94190
2010-01-22 18:21:35 +00:00
Benjamin Kramer 94b993ed8a Simplify some uses of str(n)cmp with StringRef.
llvm-svn: 94189
2010-01-22 18:21:23 +00:00
Chris Lattner cfa5ebc336 add comment support to the rest of the directives.
llvm-svn: 94168
2010-01-22 07:36:39 +00:00
Chris Lattner e649401824 stop using strtoll, it gives windows heartburn.
llvm-svn: 94167
2010-01-22 07:34:12 +00:00
Chris Lattner 38e9219f71 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 0522eb2160 pass "-fasm-verbose" into createAsmStreamer.
llvm-svn: 94165
2010-01-22 07:06:15 +00:00
Chris Lattner 7ba0661f27 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 5b0e01c54e 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 9a184b368b forgot to svn add these, doh.
llvm-svn: 94130
2010-01-22 01:55:10 +00:00
Chris Lattner 00646cfbd4 create a new MCParser library and move some stuff into it.
llvm-svn: 94129
2010-01-22 01:44:57 +00:00
Chris Lattner 1edfeb2c46 don't forget to initialize an instance variable!
llvm-svn: 94021
2010-01-20 20:48:59 +00:00
Chris Lattner 9fc980403e use getGlobalDirective(), don't hardcode .globl. PR6093
llvm-svn: 94006
2010-01-20 17:50:30 +00:00
Chris Lattner 45eeffcc2a 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 38caaf14c1 give createAsmStreamer an 'isLittleEndian' argument.
llvm-svn: 93986
2010-01-20 06:39:07 +00:00
Chris Lattner 2b4364fe03 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 003b5c8472 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 dc50e5d128 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 936b0d3144 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 c35681b298 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 ed89f60f5e 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 4340cb3246 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 0c65fd4902 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 9c31b0c695 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 cd2915e467 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 95b98959b0 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 b1f2934fc7 hookize the cygwin ".linkonce" directive.
llvm-svn: 93855
2010-01-19 05:08:13 +00:00
Chris Lattner dccbb28bca 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 e9d28b19cf 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 1d371882b6 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 e945172ba4 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 c8f7717808 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 8b5d55ed06 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 043e656797 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 83e872e1c4 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 660d979ad9 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 18bcf30497 unbreak the build, grr symlinks.
llvm-svn: 93539
2010-01-15 19:51:05 +00:00
Chris Lattner 528d00b913 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 b9d1f5a006 tidy
llvm-svn: 93352
2010-01-13 21:21:29 +00:00
Chris Lattner 8361006264 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 7b42d7067e Change errs() to dbgs().
llvm-svn: 92635
2010-01-05 01:28:22 +00:00
David Greene ac7f537d57 Change errs() to dbgs().
llvm-svn: 92634
2010-01-05 01:28:17 +00:00
David Greene cdf0452ed2 Change errs() to dbgs().
llvm-svn: 92632
2010-01-05 01:28:10 +00:00
David Greene a8cbfb8acc Change errs() to dbgs().
llvm-svn: 92630
2010-01-05 01:28:07 +00:00
Daniel Dunbar ad36e8aceb Pass StringRef by value.
llvm-svn: 86251
2009-11-06 10:58:06 +00:00
Chandler Carruth 56869f22c4 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 86dfd73c38 add a twine version of MCContext::GetOrCreateSymbol.
llvm-svn: 84561
2009-10-19 22:49:00 +00:00
Daniel Dunbar 5d9134747b MC: Set symbol values in MachO MCStreamer.
llvm-svn: 84236
2009-10-16 01:58:23 +00:00
Daniel Dunbar e024def785 Minor formatting tweaks.
llvm-svn: 84235
2009-10-16 01:58:15 +00:00
Daniel Dunbar 8e6d889d4c MC: Switch assembler API to using MCExpr instead of MCValue.
llvm-svn: 84234
2009-10-16 01:58:03 +00:00
Daniel Dunbar c3bd60e393 MC: Remove unneeded context argument to MCExpr::Evaluate*.
llvm-svn: 84233
2009-10-16 01:57:52 +00:00
Daniel Dunbar 5f339244fb 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 d20cda028a 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 17b9027b5c MC: Move assembler variable values from MCContext to MCSymbol.
llvm-svn: 84229
2009-10-16 01:33:57 +00:00
Daniel Dunbar 584a1b25ef MC: Switch MCContext value table to storing MCExprs.
llvm-svn: 84228
2009-10-16 01:33:11 +00:00
Kevin Enderby 818b6b96cb 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 50d75a6099 No newline at end of files.
llvm-svn: 83318
2009-10-05 18:43:19 +00:00
Chris Lattner a15f0044a0 eliminate a use of strtoul.
llvm-svn: 82382
2009-09-20 06:58:54 +00:00
Anton Korobeynikov 592638ae05 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 b866602f06 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 6a833f6806 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 2251293788 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 813efa2551 Update CMake.
llvm-svn: 81757
2009-09-14 05:22:47 +00:00
Chris Lattner 11b2fc9ea4 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 de57d8e72b add a new MCInstPrinter class, move the (trivial) MCDisassmbler ctor inline.
llvm-svn: 81745
2009-09-14 01:43:38 +00:00
Chris Lattner a4760f3642 'printMCInst' doesn't print newlines after instructions anymore.
llvm-svn: 81723
2009-09-13 22:24:34 +00:00
Chris Lattner d940dd5801 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 de79e4fc2e 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 3d6c8ebb58 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 5090e6c4a7 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 c74e09f654 Update CMake files.
llvm-svn: 81577
2009-09-11 21:49:45 +00:00
Chris Lattner d747a9f21f canonicalize namespace gymnastics
llvm-svn: 81402
2009-09-09 23:46:42 +00:00
Sean Callanan 1358fb7feb 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 cada1c1012 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 22833a3cd6 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 7975b8fc32 Print "X-42" instead of "X+-42".
llvm-svn: 81203
2009-09-08 06:37:35 +00:00
Chris Lattner 3cfc551f6e make formatting of expressions more closely match the existing asmprinter.
llvm-svn: 81202
2009-09-08 06:34:07 +00:00
Chris Lattner a0020be758 tidy whitespace.
llvm-svn: 81201
2009-09-08 06:27:48 +00:00
Chris Lattner 1945453843 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 f4366a3998 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 1800dff44e inline insertion operators.
llvm-svn: 80888
2009-09-03 05:33:01 +00:00
Chris Lattner f16a122213 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 4fa0595b94 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 897ffadd2d llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues.
llvm-svn: 80578
2009-08-31 08:09:28 +00:00
Daniel Dunbar b7b2097aac llvm-mc: Simplify EmitAssignment ('.set' is identical to '=').
llvm-svn: 80577
2009-08-31 08:09:09 +00:00
Daniel Dunbar 73da11ebda 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 945e257e99 llvm-mc: Make MCSymbolData symbol member const.
llvm-svn: 80573
2009-08-31 08:08:06 +00:00
Daniel Dunbar 02c7254f6d llvm-mc: Add MCContext to MCAssembler.
llvm-svn: 80572
2009-08-31 08:07:55 +00:00
Daniel Dunbar b34a2b9da1 llvm-mc: Add MCExpr::{dump,print}.
llvm-svn: 80570
2009-08-31 08:07:33 +00:00
Daniel Dunbar f363645da2 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 115e4d6d7b llvm-mc: Move AsmExpr into MC lib (as MCExpr).
llvm-svn: 80567
2009-08-31 08:06:59 +00:00
Daniel Dunbar 6a715dccdf 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 2a2459a291 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 2701eee0ad llvm-mc: Support .comm emission.
llvm-svn: 80351
2009-08-28 07:08:35 +00:00
Daniel Dunbar 42a39d038a 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 a468a12dfa 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 d82ef0e923 llvm-mc: Factor getSectionData out of SwitchSection.
llvm-svn: 80344
2009-08-28 05:48:54 +00:00
Daniel Dunbar 96abad185d llvm-mc: Emit .lcomm as .zerofill.
llvm-svn: 80343
2009-08-28 05:48:46 +00:00
Daniel Dunbar cf72e1c03e llvm-mc: Add const to EmitZeroFill section argument.
llvm-svn: 80341
2009-08-28 05:48:22 +00:00
Daniel Dunbar 93665faad0 llvm-mc: Fix thinko in emitting values.
llvm-svn: 80340
2009-08-28 05:48:10 +00:00
Daniel Dunbar c7c5f9fa86 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 c4f0e7e28d 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 212b6d8a57 Add {MCInst,MCOperand}::{print,dump}
llvm-svn: 80231
2009-08-27 07:57:12 +00:00
Daniel Dunbar 9cefb135a5 Update CMake
llvm-svn: 80195
2009-08-27 02:08:37 +00:00
Daniel Dunbar 81cb753298 llvm-mc: Tweak MCCodeEmitter skeleton.
llvm-svn: 80193
2009-08-27 01:34:22 +00:00
Daniel Dunbar 65105174a6 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 47f11ac5b5 Try to make MSVC just a little happier.
llvm-svn: 80187
2009-08-27 00:38:04 +00:00
Daniel Dunbar e73b267301 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 e2697738a4 llvm-mc/Mach-O: Set .subsections_via_symbols flag properly.
llvm-svn: 80144
2009-08-26 21:22:22 +00:00
Daniel Dunbar c4581eaca8 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 a9eeb78ed5 llvm-mc/Mach-O: Move symbol indices into the MCSymbolData structure.
llvm-svn: 80088
2009-08-26 13:57:54 +00:00
Daniel Dunbar c1710a04ba 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 ffda9eb31a llvm-mc: Change MCContext value table to take const MCSymbol*s.
llvm-svn: 80079
2009-08-26 09:16:57 +00:00
Daniel Dunbar 066d0f93bf 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 aef5317edd llvm-mc/Mach-O: Set addresses for symbols.
llvm-svn: 80065
2009-08-26 02:48:04 +00:00
Daniel Dunbar c2c0bf961f llvm-mc: Improve indirect symbol support (add the indirect index table).
llvm-svn: 80059
2009-08-26 00:18:21 +00:00
Bill Wendling a9f56a686c 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 5a07d6a9c6 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 dd14b4a77a Add the #include here.
llvm-svn: 80032
2009-08-25 21:09:50 +00:00
Bill Wendling 485591273c 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 582d61026d 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 04a1158d13 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 d341e781da llvm-mc: Tweak undefined symbol handling.
llvm-svn: 79898
2009-08-24 08:39:57 +00:00
Chris Lattner 06fa176862 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 4db6267a2c Update CMake build, unbreak linux build.
llvm-svn: 79779
2009-08-22 22:07:08 +00:00
Chris Lattner e9a75a6654 rename TAI -> MAI, being careful not to make MAILJMP instructions :)
llvm-svn: 79777
2009-08-22 21:43:10 +00:00
Chris Lattner 054574666a rename COFFMCAsmInfo -> MCAsmInfoCOFF, likewise for darwin.
llvm-svn: 79773
2009-08-22 21:03:30 +00:00
Chris Lattner 2b9f0d100b 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 7b26fce23e Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
llvm-svn: 79763
2009-08-22 20:48:53 +00:00
Chris Lattner ca098517a3 prune some redundant #includes.
llvm-svn: 79746
2009-08-22 19:35:08 +00:00
Chris Lattner 8f816e7d68 tweak #includes
llvm-svn: 79744
2009-08-22 19:19:12 +00:00
Daniel Dunbar d1859474a7 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 ff3eafd39d 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 38728fe481 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 fef19ffe3a 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 6860ac7375 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 b1068e4fe3 llvm-mc/Mach-O: Support .o emission for .org and .align.
llvm-svn: 79684
2009-08-21 23:07:38 +00:00
Daniel Dunbar 4ef7fb9530 llvm-mc/Mach-O: Support byte and fill value emission.
llvm-svn: 79652
2009-08-21 18:29:01 +00:00
Benjamin Kramer c20529945a Update CMakeLists.
llvm-svn: 79617
2009-08-21 11:28:56 +00:00
Daniel Dunbar 3016db39dd 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 78b23b0e3f fix asmstreaming of 2/4 byte elements with pow-2 alignments.
llvm-svn: 79408
2009-08-19 06:35:36 +00:00
Chris Lattner 37b7234a75 switch asmprinter to emit alignments through OutStreamer.
llvm-svn: 79406
2009-08-19 06:12:02 +00:00
Chris Lattner 4b7dadb76e 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 f446070b62 null streamer needs to maintain the current section as well.
llvm-svn: 79343
2009-08-18 16:46:29 +00:00
Chris Lattner 0adae25ec1 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 aa1526419c 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 a61e93d4b5 give MCAsmStreamer a TargetAsmInfo.
llvm-svn: 79222
2009-08-17 04:23:44 +00:00
Chris Lattner 962c5bd803 formatting cleanups, no functionality change.
llvm-svn: 79221
2009-08-17 04:17:34 +00:00
Chris Lattner 0fbe0f51a4 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 6cb1eb5a6d 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 c773141e66 *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 c2346a3037 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 563a7e87e3 llvm-mc: zerofill shouldn't print quotes around the section,segment.
llvm-svn: 79017
2009-08-14 18:51:45 +00:00
Oscar Fuentes 67f7fbdf9e CMake: updated list of source files for library MC.
llvm-svn: 78988
2009-08-14 04:14:45 +00:00
Daniel Dunbar 80d484e7cc 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 1a019d8554 Add MCSymbol::{print, dump}
llvm-svn: 78983
2009-08-14 03:41:23 +00:00
Daniel Dunbar afe6603590 Add MCValue::{print, dump}
llvm-svn: 78982
2009-08-14 03:11:09 +00:00
Daniel Dunbar cbf4faf48d llvm-mc: Move MCAsmToken::getLoc() into MC library where it belongs.
llvm-svn: 78980
2009-08-14 02:18:40 +00:00
Dan Gohman 3e0bd7852f 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 aba5fb8c9a 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 62e6a8bbe6 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 df743ae603 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 607cd3b63a 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 04b4700ebc 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 b691316838 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 6c20391d38 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 cb307a27bf 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 f4c2eee251 always end a section with \n on elf.
llvm-svn: 78534
2009-08-09 15:31:10 +00:00
Chris Lattner 591105c540 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 1cb9396f4f 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 245fdfb9c3 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 5a9bc50fa8 stub out PECOFF/MachO/ELF MCSection classes
llvm-svn: 78499
2009-08-08 20:50:49 +00:00
Chris Lattner c9c277ba0f 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 95bad379a9 All MCSections are now required to have a SectionKind.
llvm-svn: 77787
2009-08-01 18:25:49 +00:00