Alex Lorenz f8361e4518 llvm-cov: add code coverage tool that's based on coverage mapping format and clang's pgo. ...

This commit expands llvm-cov's functionality by adding support for a new code coverage
tool that uses LLVM's coverage mapping format and clang's instrumentation based profiling.
The gcov compatible tool can be invoked by supplying the 'gcov' command as the first argument,
or by modifying the tool's name to end with 'gcov'.

Differential Revision: http://reviews.llvm.org/D4445

llvm-svn: 216300

2014-08-22 22:56:03 +00:00

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