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llvm-6502/include/llvm/MC
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Ulrich Weigand 4df4bccc71 [MC/DWARF] Generate multiple .debug_line entries for adjacent .loc directives 
The compiler occasionally generates multiple .loc directives in a row
(at the same instruction address).  These need to be transformed into
multple actual .debug_line table entries, since they are used to signal
certain information to the debugger (e.g. if the opening brace of a
function body is on the same line as the declaration).

The MCAsmStreamer version of EmitDwarfLocDirective handles this
correctly by emitting a .loc directive every time it is called.
However, the MCObjectStream version simply defaults to recording
the information and emitting only a single table entry later,
e.g. when EmitInstruction is called.

This patch introduces a MCAsmStreamer::EmitDwarfLocDirective
version that emits a line table entry for a .loc directive
that may already be pending before recording the new directive.
(This is similar to how this is handled in GNU as.)

With this patch (and the code alignment factor patch) applied,
I'm now getting identical DWARF .debug sections for all test-suite
object files on PowerPC for the internal and the external assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184357 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:27:27 +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 Use pointers to the MCAsmInfo and MCRegInfo. 2013-06-18 07:20:20 +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 Machine Model: Add MicroOpBufferSize and resource BufferSize. 2013-06-15 04:49:57 +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
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 [MC/DWARF] Generate multiple .debug_line entries for adjacent .loc directives 2013-06-19 21:27:27 +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 Machine Model: Add MicroOpBufferSize and resource BufferSize. 2013-06-15 04:49:57 +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