[PATCH] D18518: Add an IR Verifier check for orphaned DICompileUnits.

[Adrian Prantl via llvm-commits]

aprantl created this revision.
aprantl added reviewers: dexonsmith, dblaikie.
aprantl added subscribers: llvm-commits, loladiro.

Add an IR Verifier check for orphaned DICompileUnits. A DICompileUnit that is not listed in llvm.dbg.cu will cause assertion failures and/or crashes in the backend. The Verifier should reject this.

http://reviews.llvm.org/D18518

Files:
  lib/IR/Verifier.cpp
  test/Assembler/dicompileunit.ll
  test/Transforms/LoopIdiom/debug-line.ll
  test/Verifier/dbg-orphaned-compileunit.ll
  tools/bugpoint/CrashDebugger.cpp

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