[PATCH] D49324: [UBSan] Followup for silence_unsigned_overflow flag to handle negate overflows.

[Max Moroz via Phabricator via llvm-commits]

Dor1s created this revision.
Dor1s added reviewers: morehouse, kcc.
Herald added subscribers: Sanitizers, delcypher, kubamracek.

That flag has been introduced in https://reviews.llvm.org/D48660 for
suppressing UIO error messages in an efficient way. The main motivation is to
be able to use UIO checks in builds used for fuzzing as it might provide an
interesting signal to a fuzzing engine such as libFuzzer.

See https://github.com/google/oss-fuzz/issues/910 for more information.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D49324

Files:
  lib/profile/InstrProfilingFile.c
  lib/profile/InstrProfilingMerge.c
  lib/profile/InstrProfilingUtil.c
  lib/profile/InstrProfilingUtil.h
  lib/ubsan/ubsan_handlers.cc
  test/ubsan/TestCases/Integer/negate-overflow.cpp

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