[PATCH] D77244: sancov/inline-bool-flag feature + tests + docs.

[Pratyai Mazumder via Phabricator via cfe-commits]

pratyai created this revision.
pratyai added reviewers: kcc, vitalybuka.
Herald added subscribers: Sanitizers, cfe-commits, jfb, hiraditya.
Herald added projects: clang, Sanitizers.
pratyai updated this revision to Diff 254312.
pratyai added a comment.

Removed some unintentional diffs.

Removed some unintentional diffs from clang/lib/Frontend/CompilerInvocation.cpp.


New SanitizerCoverage feature `inline-bool-flag` which inserts an atomic store of `1` to a boolean (which is an 8bit integer in practice) flag on every instrumented edge.

Implementation-wise it's very similar to `inline-8bit-counters` features. So, much of wiring and test just follows the same pattern.

Tested with `cmake --build . -- check-llvm`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D77244

Files:
  clang/docs/SanitizerCoverage.rst
  clang/include/clang/Basic/CodeGenOptions.def
  clang/include/clang/Driver/CC1Options.td
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/BackendUtil.cpp
  clang/lib/Driver/SanitizerArgs.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/Driver/autocomplete.c
  clang/test/Driver/fsanitize-coverage.c
  compiler-rt/test/sanitizer_common/TestCases/sanitizer_coverage_inline_bool_flag.cpp
  llvm/include/llvm/Transforms/Instrumentation.h
  llvm/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
  llvm/test/Instrumentation/SanitizerCoverage/coff-pc-table-inline-bool-flag.ll
  llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll
  llvm/test/Instrumentation/SanitizerCoverage/pc-table.ll
  llvm/test/Instrumentation/SanitizerCoverage/trace-pc-guard-inline-bool-flag.ll

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