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259bc4b0e7
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79 Commits

Author SHA1 Message Date
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
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
52e6d663b3 reject invalid code like: 
int x __attribute__((section("_foo, _bar"))) = 4;
int y __attribute__((section("_foo, _bar, 4byte_literals"))) = 1;

llvm-svn: 78867
 2009-08-13 00:05:07 +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
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
8df05f13da make MergeableCString be a SectionKind "abstract class", and 
add new concrete versions for 1/2/4-byte mergable strings.

These are not actually created yet.

llvm-svn: 78055
 2009-08-04 05:35:56 +00:00
Daniel Dunbar
8a0b05b396 Change MCOperand to use Create style instead of Make style for constructing 
operands.

llvm-svn: 77837
 2009-08-02 00:09:22 +00:00
Chris Lattner
8cb3189438 make SectionKind::Kind completely private now. 
llvm-svn: 77836
 2009-08-02 00:04:12 +00:00
Chris Lattner
506b49ffa0 Make SectionKind::get() private. 
llvm-svn: 77835
 2009-08-02 00:02:44 +00:00
Chris Lattner
05334af883 (re)introduce new simpler apis for creation sectionkinds. 
llvm-svn: 77834
 2009-08-01 23:57:16 +00:00
Chris Lattner
2a9d51b703 it turns out that isWeak() was basically dead anyway. Kill off SectionInfo :-/ 
llvm-svn: 77812
 2009-08-01 21:46:23 +00:00
Chris Lattner
2f8fcad7cf fix a layering violation by moving SectionKind out to its own header. 
llvm-svn: 77808
 2009-08-01 21:30:49 +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
e150b07b71 llvm-mc: Support quoted identifiers. 
- Uses MCAsmToken::getIdentifier which returns the (sub)string representing the
   meaningfull contents a string or identifier token.

 - Directives aren't done yet.

llvm-svn: 77739
 2009-07-31 21:55:09 +00:00
Chris Lattner
75b7692e66 switch off of 'Section' onto MCSection. We're not properly using 
MCSection subclasses yet, but this is a step in the right direction.

llvm-svn: 77708
 2009-07-31 18:48:30 +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
8f43b0796e Add missing include. 
llvm-svn: 77470
 2009-07-29 16:45:40 +00:00
Daniel Dunbar
ec1ea2e240 Make expression parsing and error/warning reporting available through the 
generic MCAsmParser interface.

llvm-svn: 77381
 2009-07-28 22:22:31 +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
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
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
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
cf4aa8ff97 Tweak MCSymbol doxyments. 
llvm-svn: 74599
 2009-07-01 07:03:41 +00:00
Daniel Dunbar
7f47cc9423 Rename MCValue::isConstant to isAbsolute. 
llvm-svn: 74596
 2009-07-01 06:48:00 +00:00