[PATCH] D41222: Handle previously ASAN-instrumented IR gracefully when ASAN re-invoked

[Teresa Johnson via Phabricator via llvm-commits]

tejohnson created this revision.
tejohnson added reviewers: vsk, vitalybuka.

Fixes the case when invoking -fsanitize=address twice due to serializing
through bitcode or LLVM assembly and then compiling that down to native
code. Without this there are assertion failures from the instrumentation
passes.

Fixes PR32700.


https://reviews.llvm.org/D41222

Files:
  lib/Transforms/Instrumentation/AddressSanitizer.cpp
  test/Instrumentation/AddressSanitizer/skip-previously-instrumented.ll

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