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llvm-mirror/lib/MC
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Dominic Chen aeeb84515c Avoid accessing LLVM/DWARF register mappings if undefined 
Summary:
If the backend does not define LLVM/DWARF register mappings, the associated
variables are undefined since the map initializer is called by auto-generated
TableGen routines. This patch initializes the pointers and sizes to nullptr
and zero, respectively, and checks that they are valid before searching
for a mapping.

Reviewers: grosbach, dschuff

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23458

llvm-svn: 278574
2016-08-12 23:12:59 +00:00
..
MCDisassembler Apply clang-tidy's misc-move-constructor-init throughout LLVM. 2016-05-27 14:27:24 +00:00
MCParser Re-commit r277988: [mips][ias] Fix all the hacks related to MIPS-specific unary operators (%hi/%lo/%gp_rel/etc.). 2016-08-08 11:50:25 +00:00
CMakeLists.txt Delete MCCodeGenInfo. 2016-06-30 18:25:11 +00:00
ConstantPools.cpp Apply clang-tidy's modernize-loop-convert to lib/MC. 2016-06-26 14:49:00 +00:00
ELFObjectWriter.cpp Delete some dead code. 2016-06-21 19:48:12 +00:00
LLVMBuild.txt Nuke MCAnalysis. 2014-09-02 22:32:20 +00:00
MachObjectWriter.cpp Reapply: "ARM: put correct symbol index on indirect pointers in __thread_ptr."" 2016-04-26 18:29:16 +00:00
MCAsmBackend.cpp MachO: enable .data_region directives everywhere 2016-04-21 23:00:17 +00:00
MCAsmInfo.cpp [MC] Delete use of *structors_used. 2016-08-08 03:30:01 +00:00
MCAsmInfoCOFF.cpp [MC] Use LShr for constant evaluation of ">>" on non-arm64 darwin. 2015-11-11 00:51:36 +00:00
MCAsmInfoDarwin.cpp [MC] Delete use of *structors_used. 2016-08-08 03:30:01 +00:00
MCAsmInfoELF.cpp [WebAssembly] Don't create a needless .note.GNU-stack section 2016-01-15 23:59:13 +00:00
MCAsmStreamer.cpp [MC] When emitting output hash comments always use standard line comment seperator 2016-07-29 14:42:00 +00:00
MCAssembler.cpp [MC] Don't crash when trying to emit a relocation against .bss. 2016-07-26 18:16:33 +00:00
MCCodeEmitter.cpp
MCCodeView.cpp [codeview] Shrink inlined call site line info tables 2016-07-14 23:47:15 +00:00
MCContext.cpp Add support for allowing us to create uniquely identified "COMDAT" or "ELF 2016-07-01 06:07:38 +00:00
MCDwarf.cpp Apply clang-tidy's modernize-loop-convert to lib/MC. 2016-06-26 14:49:00 +00:00
MCELFObjectTargetWriter.cpp Always sort by offset first. NFC. 2015-12-17 15:08:24 +00:00
MCELFStreamer.cpp Fix instance of -Wdelete-incomplete 2016-06-22 23:25:26 +00:00
MCExpr.cpp [MCExpr] avoid UB via negation of INT_MIN 2016-05-20 14:09:41 +00:00
MCFragment.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
MCInst.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
MCInstPrinter.cpp [llvm] Parameterizing the output stream for dumpbytes and outputting directly to stream. 2015-05-28 18:39:50 +00:00
MCInstrAnalysis.cpp
MCInstrDesc.cpp Replace uint16_t with the MCPhysReg typedef in many places. A lot of physical register arrays already use this typedef. 2015-12-05 07:13:35 +00:00
MCLabel.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
MCLinkerOptimizationHint.cpp Apply clang-tidy's modernize-loop-convert to lib/MC. 2016-06-26 14:49:00 +00:00
MCMachObjectTargetWriter.cpp MC: Remove obsolete MachO UseAggressiveSymbolFolding. 2015-06-04 20:27:42 +00:00
MCMachOStreamer.cpp MachO: enable .data_region directives everywhere 2016-04-21 23:00:17 +00:00
MCNullStreamer.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
MCObjectFileInfo.cpp [mips] Set Personality and LSDA encoding for FreeBSD 2016-08-04 15:36:03 +00:00
MCObjectStreamer.cpp Fix branch relaxation in 16-bit mode. 2016-07-11 14:23:53 +00:00
MCObjectWriter.cpp Fix pr24486. 2015-10-05 12:07:05 +00:00
MCRegisterInfo.cpp Avoid accessing LLVM/DWARF register mappings if undefined 2016-08-12 23:12:59 +00:00
MCSchedule.cpp Add <type_traits> for is_pod, fixing r241947 2015-07-10 22:17:49 +00:00
MCSection.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
MCSectionCOFF.cpp Sink COFF.h MC include into .cpp files 2015-09-03 16:41:50 +00:00
MCSectionELF.cpp Bring r252305 back with a test fix. 2015-11-06 15:30:45 +00:00
MCSectionMachO.cpp [ADT] Switch a bunch of places in LLVM that were doing single-character 2015-09-10 06:12:31 +00:00
MCStreamer.cpp Provide support for preserving assembly comments 2016-07-11 12:42:14 +00:00
MCSubtargetInfo.cpp (NFC) Change SubtargetFeatures::ToggleFeature and 2016-01-05 10:25:56 +00:00
MCSymbol.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
MCSymbolELF.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
MCTargetOptions.cpp Initialize PreserveAsmComments in MCTargetOptions 2016-07-27 19:19:13 +00:00
MCValue.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
MCWin64EH.cpp [MC] Create unique .pdata sections for every .text section 2016-05-02 23:22:18 +00:00
MCWinEH.cpp [MC] Create unique .pdata sections for every .text section 2016-05-02 23:22:18 +00:00
StringTableBuilder.cpp Make StringTableBuilder to cache hash values. 2016-05-06 00:51:58 +00:00
SubtargetFeature.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
WinCOFFObjectWriter.cpp Apply clang-tidy's modernize-loop-convert to lib/MC. 2016-06-26 14:49:00 +00:00
WinCOFFStreamer.cpp [MC, COFF] Permit a variable to be redefined 2016-07-08 21:54:16 +00:00