Dominic Chen 5122298d87 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278574 91177308-0d34-0410-b5e6-96231b3b80d8

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

…

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

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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

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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

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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

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MCInstrAnalysis.cpp

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MCInstrDesc.cpp

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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

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MCMachOStreamer.cpp

MachO: enable .data_region directives everywhere

2016-04-21 23:00:17 +00:00

MCNullStreamer.cpp

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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

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MCRegisterInfo.cpp

Avoid accessing LLVM/DWARF register mappings if undefined

2016-08-12 23:12:59 +00:00

MCSchedule.cpp

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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

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MCSectionELF.cpp

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MCSectionMachO.cpp

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MCStreamer.cpp

Provide support for preserving assembly comments

2016-07-11 12:42:14 +00:00

MCSubtargetInfo.cpp

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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

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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