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98ffbd5041
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53 Commits

Author SHA1 Message Date
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