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2009-08-21llvm-mc/Mach-O: Support .o emission for .org and .align.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21llvm-mc/Mach-O: Support byte and fill value emission.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Update CMakeLists.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79617 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21llvm-mc: Start MCAssembler and MCMachOStreamer.Daniel Dunbar
- 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79612 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19fix asmstreaming of 2/4 byte elements with pow-2 alignments.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19switch asmprinter to emit alignments through OutStreamer.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19eliminate AsmPrinter::SwitchToSection and just have clientsChris Lattner
talk to the MCStreamer directly instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18null streamer needs to maintain the current section as well.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18Make AsmStreamer maintain a notion of the current section, pushing it up ↵Chris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79324 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17change AsmPrinter to switch sections using AsmStreamer instead ofChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17give MCAsmStreamer a TargetAsmInfo.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79222 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17formatting cleanups, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79221 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15add support for target-specific ELF section flags, add a new MCSectionXCoreChris Lattner
class which represents the XCore cp/dp section flags. No functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14llvm-mc: Fix bugs where bytes were unintentionally being printed as signed.Daniel Dunbar
- We now print all of 403.gcc cleanly (llvm-mc -> 'as' as diffed to 'as'), minus two 'rep;movsl' instructions (which I missed before). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14*try* to use a better name to describe how common symbols are marked on the ↵Bruno Cardoso Lopes
elf object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14llvm-mc: When handling a .set, make sure to print subsequent references to theDaniel Dunbar
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). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79025 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14llvm-mc: zerofill shouldn't print quotes around the section,segment.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14CMake: updated list of source files for library MC.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78988 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14Update llvm-mc / MCAsmStreamer to print the instruction using the actual targetDaniel Dunbar
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. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78986 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14Add MCSymbol::{print, dump}Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78983 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14Add MCValue::{print, dump}Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78982 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14llvm-mc: Move MCAsmToken::getLoc() into MC library where it belongs.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78980 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Fix MCSectionELF::ShouldOmitSectionDirective's matching of .data andDan Gohman
friends so that it doesn't match sections like .data.rel.local, which should not be emitted as section directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling.Daniel Dunbar
- Currently unused. - A few other random comment fixes lumped in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Remove HasCrazyBSS and add a flag in TAI to indicate that '.section' Bruno Cardoso Lopes
must be emitted for PowerPC-Linux '.bss' section git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Add a method to return if the ELF section contains only common symbols!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78937 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Change MCSectionELF to represent a section semantically instead ofBruno Cardoso Lopes
syntactically as a string, very similiar to what Chris did with MachO. The parsing support and validation is not introduced yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78890 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF ↵Chris Lattner
implementations. MCContext no longer maintains a string -> section map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78874 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13add some comments: MCContext owns the MCSections, but it bump pointer allocatesChris Lattner
them, so it doesn't have to explicitly free them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10split MachO section handling stuff out to its out .h/.cpp file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Make the big switch: Change MCSectionMachO to represent a section *semantically*Chris Lattner
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? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78547 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-09always end a section with \n on elf.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78534 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08sink the 'name' and 'isdirective' state out of MCSection into its derived ↵Chris Lattner
classes. This totally optimizes PIC16 sections by not having an 'isdirective' bit anymore!! ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78517 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-081. Make MCSection an abstract class.Chris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08make target-specific TLOF impls (except PIC16) create target-specificChris Lattner
MCSection instances. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08stub out PECOFF/MachO/ELF MCSection classesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01Change SectionKind to be a property that is true of a *section*, itChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01All MCSections are now required to have a SectionKind.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77787 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31llvm-mc: Fix .s output to quote section & symbol names when necessary.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31split MCSection stuff out to its own .cpp file, add a newChris Lattner
MCSectionWithKind subclass of MCSection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31create sections with MCSection::Create instead of Context->getOrCreateSection.Chris Lattner
This is needed to allow polymorphic sections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Expose Tokens to target specific assembly parsers.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77337 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27llvm-mc: Implement .abort fully in the front endDaniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27llvm-mc: Move AsmLexer::getCurStrVal to StringRef based API.Daniel Dunbar
- My DFS traversal of LLVM is, at least for now, nearly complete! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Move MCContext and friends to StringRef based APIs.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Removed the DumpSymbolsandMacros and LoadSymbolsandMacros MCStreamer API asKevin Enderby
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76462 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Add MCAsmLexer interface.Daniel Dunbar
- This provides the AsmLexer interface to the target specific assembly parsers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76460 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Add MCAsmParser interface.Daniel Dunbar
- This provides the AsmParser interface to the target specific assembly parsers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76453 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Update CMake file.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76264 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17llvm-mc: Add -triple, and start fetching the target asm printer.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76257 91177308-0d34-0410-b5e6-96231b3b80d8
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