[PATCH] D66726: [Bitfield] Disable -ffine-grained-bitfield-accesses only when thread sanitizer is enabled

[Wei Mi via Phabricator via llvm-commits]

wmi created this revision.
wmi added reviewers: chandlerc, chill, hfinkel.
Herald added a project: LLVM.
wmi edited subscribers, added: cfe-commits; removed: llvm-commits.

Currently -ffine-grained-bitfield-accesses is disabled when any type of sanitizer is enabled (https://reviews.llvm.org/D36562). That seems unnecessary because the flag only affect Tsan's ability to find race conditions between accesses to consecutive bitfields. The patch disable -ffine-grained-bitfield-accesses only when thread sanitizer is enabled.


Repository:
  rL LLVM

https://reviews.llvm.org/D66726

Files:
  include/clang/Basic/DiagnosticDriverKinds.td
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGenCXX/finegrain-bitfield-access.cpp

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