[PATCH] D83154: clang: Add -fcoverage-prefix-map

[Keith Smiley via Phabricator via cfe-commits]

keith created this revision.
keith added reviewers: vsk, arphaman, rnk.
Herald added a subscriber: dexonsmith.
Herald added a project: clang.
keith added a comment.

Open question: I don't know how all the toolchains fit together, but I noticed that only Clang.cpp handles -fmacro-prefix-map, but Clang.cpp, FreeBSD.cpp, and Gnu.cpp all handle -fdebug-prefix-map. I wasn't sure which pattern I should follow here, so right now this only adds the handling to Clang.cpp, please let me know if that's not appropriate in this case!


This flag allows you to re-write absolute paths in coverage data analogous to -fdebug-prefix-map. This flag is also implied by -ffile-prefix-map.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83154

Files:
  clang/include/clang/Basic/CodeGenOptions.h
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/CoverageMappingGen.cpp
  clang/lib/CodeGen/CoverageMappingGen.h
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/CoverageMapping/coverage-prefix-map.c
  clang/test/Driver/debug-prefix-map.c

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