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llvm-6502/include/llvm/MC
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Ulrich Weigand c1f4a4b264 [MC/DWARF] Support .debug_frame / .debug_line code alignment factors 
I've been comparing the object file output of LLVM's integrated
assembler against the external assembler on PowerPC, and one
area where differences still remain are in DWARF sections.

In particular, the GNU assembler generates .debug_frame and
.debug_line sections using a code alignment factor of 4, since
all PowerPC instructions have size 4 and must be aligned to a
multiple of 4.  However, current MC code hard-codes a code
alignment factor of 1.

This patch changes this by adding a "minimum instruction alignment"
data element to MCAsmInfo and using this as code alignment factor.

This requires passing a MCContext into MCDwarfLineAddr::Encode
and MCDwarfLineAddr::EncodeAdvanceLoc.  Note that one caller,
MCDwarfLineAddr::Write, didn't actually have that information
available.  However, it turns out that this routine is in fact
never used in the whole code base, so the patch simply removes
it.  If it turns out to be needed again at a later time, it
could be re-added with an updated interface.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183834 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-12 14:46:54 +00:00
..
MCParser Whitespace. 2013-06-02 19:51:54 +00:00
MachineLocation.h Remove the MachineMove class. 2013-05-13 01:16:13 +00:00
MCAsmBackend.h Renamed MCInstFragment to MCRelaxableFragment and added some comments. 2013-01-08 00:22:56 +00:00
MCAsmInfo.h [MC/DWARF] Support .debug_frame / .debug_line code alignment factors 2013-06-12 14:46:54 +00:00
MCAsmInfoCOFF.h Fix include guards so they exactly match file names. 2013-01-10 00:45:19 +00:00
MCAsmInfoDarwin.h Fix include guards so they exactly match file names. 2013-01-10 00:45:19 +00:00
MCAsmLayout.h [MC] Bundle alignment: Invalidate relaxed fragments 2013-02-05 17:55:27 +00:00
MCAssembler.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCAtom.h MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCCodeEmitter.h Add more reset methods to make all objects that the backend may use for outputting code have a reset, some are not used but were declared for completeness 2012-12-14 18:52:11 +00:00
MCCodeGenInfo.h Fix typo in comment. 2012-02-17 16:39:47 +00:00
MCContext.h Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap 2013-03-12 20:17:00 +00:00
MCDirectives.h Refactor data-in-code annotations. 2012-05-18 19:12:01 +00:00
MCDisassembler.h Follow up of the introduction of MCSymbolizer. 2013-05-24 22:51:52 +00:00
MCDwarf.h [MC/DWARF] Support .debug_frame / .debug_line code alignment factors 2013-06-12 14:46:54 +00:00
MCELF.h ELF symbol table field st_other support, 2013-02-19 21:57:35 +00:00
MCELFObjectWriter.h Cleanup relocation sorting for ELF. 2013-05-15 18:22:01 +00:00
MCELFStreamer.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCELFSymbolFlags.h sets bit 0 of the function address of thumb function in .symtab 2011-05-16 16:17:21 +00:00
MCExpr.h [PowerPC] Clean up generation of ha16() / lo16() markers 2013-05-23 22:26:41 +00:00
MCExternalSymbolizer.h Add MCSymbolizer for symbolic/annotated disassembly. 2013-05-24 00:39:57 +00:00
MCFixedLenDisassembler.h Fix include guards so they exactly match file names. 2013-01-10 00:45:19 +00:00
MCFixup.h Convert assert(0) to llvm_unreachable 2012-02-05 22:14:15 +00:00
MCFixupKindInfo.h Tidy up. Trailing whitespace. 2012-05-11 01:39:13 +00:00
MCFunction.h MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCInst.h Simplify the MCInst operator iterator declaration. 2013-04-15 17:40:45 +00:00
MCInstBuilder.h Decouple MCInstBuilder from the streamer per Eli's request. 2012-11-26 18:05:52 +00:00
MCInstPrinter.h Try to unbreak the build on hosts that don't transitively pull in a definition for int64_t. 2012-12-05 18:31:11 +00:00
MCInstrAnalysis.h MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCInstrDesc.h Resort the #include lines in include/... and lib/... with the 2013-01-02 10:22:59 +00:00
MCInstrInfo.h Revert r152202: "Use uint16_t to store InstrNameIndices in MCInstrInfo." 2012-03-15 18:05:57 +00:00
MCInstrItineraries.h I'm introducing a new machine model to simultaneously allow simple 2012-07-07 04:00:00 +00:00
MCLabel.h Fix Doxygen issues: 2012-09-14 14:57:36 +00:00
MCMachObjectWriter.h [MC/Mach-O] Add support for linker options in Mach-O files. 2013-01-18 01:26:07 +00:00
MCMachOSymbolFlags.h MC/Mach-O/Thumb: Set the thumb bit in the symbol table. 2010-12-29 14:14:06 +00:00
MCModule.h MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCObjectDisassembler.h MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCObjectFileInfo.h Track the compact unwind encoding for when we are unable to generate compact unwind information. 2013-04-10 21:42:06 +00:00
MCObjectStreamer.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCObjectSymbolizer.h MCObjectSymbolizer: Switch from IntervalMap to sorted vector, following r182625. 2013-05-30 18:18:36 +00:00
MCObjectWriter.h Fix unnecessary removal of const through cast machinery 2013-02-11 01:16:51 +00:00
MCRegisterInfo.h Make SubRegIndex size mandatory, following r183020. 2013-05-31 23:45:26 +00:00
MCRelocationInfo.h Add MCSymbolizer for symbolic/annotated disassembly. 2013-05-24 00:39:57 +00:00
MCSchedule.h Fix include guards so they exactly match file names. 2013-01-10 00:45:19 +00:00
MCSection.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSectionCOFF.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSectionELF.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSectionMachO.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCStreamer.h Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSubtargetInfo.h Sort the #include lines for the include/... tree with the script. 2012-12-03 17:02:12 +00:00
MCSymbol.h Fix Doxygen issues: 2012-09-14 14:57:36 +00:00
MCSymbolizer.h Add MCSymbolizer for symbolic/annotated disassembly. 2013-05-24 00:39:57 +00:00
MCTargetAsmParser.h [ms-inline asm] Add a new AsmRewriteKind, AOK_Delete. To be used in a future 2013-04-11 22:00:03 +00:00
MCValue.h Sort the #include lines for the include/... tree with the script. 2012-12-03 17:02:12 +00:00
MCWin64EH.h Add a parameter to the Win64 EH section getters to get a section with a 2011-05-27 19:09:24 +00:00
MCWinCOFFObjectWriter.h MC: Support COFF image-relative MCSymbolRefs 2013-04-10 23:28:17 +00:00
SectionKind.h
SubtargetFeature.h Update documentation. 2013-04-08 18:52:58 +00:00