[PATCH] D19236: Add DITypeIndex for CodeView and emit it for locals

[Reid Kleckner via llvm-commits]

rnk created this revision.
rnk added reviewers: dexonsmith, aprantl, dblaikie, echristo.
rnk added a subscriber: llvm-commits.
Herald added a subscriber: joker.eph.

This is subclass of Metadata that essentially contains one 32-bit
integer. It can stand in as a DITypeRef or a DIScopeRef in certain
cases. If you attempt to resolve such a DITypeRef, you will get an
assertion failure.

Currently the indexes can only represent the simple types below 0x1000.
In the next patch I'll add support for type streams, and these indexes
will be able to represent compound types such as record and function
types.

http://reviews.llvm.org/D19236

Files:
  include/llvm/Bitcode/LLVMBitCodes.h
  include/llvm/IR/DIBuilder.h
  include/llvm/IR/DebugInfoMetadata.h
  include/llvm/IR/Metadata.def
  include/llvm/IR/Metadata.h
  lib/AsmParser/LLParser.cpp
  lib/AsmParser/LLParser.h
  lib/Bitcode/Reader/BitcodeReader.cpp
  lib/Bitcode/Writer/BitcodeWriter.cpp
  lib/Bitcode/Writer/ValueEnumerator.cpp
  lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
  lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
  lib/CodeGen/AsmPrinter/DwarfUnit.cpp
  lib/IR/AsmWriter.cpp
  lib/IR/DIBuilder.cpp
  lib/IR/DebugInfo.cpp
  lib/IR/DebugInfoMetadata.cpp
  lib/IR/LLVMContextImpl.h
  lib/IR/Metadata.cpp
  lib/IR/Verifier.cpp
  test/DebugInfo/COFF/local-constant.ll
  test/DebugInfo/COFF/local-variables.ll
  test/DebugInfo/COFF/register-variables.ll
  unittests/IR/IRBuilderTest.cpp
  unittests/IR/MetadataTest.cpp
  unittests/Transforms/Utils/Cloning.cpp

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