This flag will be used by the coverage tool to help
compute the execution counts for each line in a source file.
Differential Revision: http://reviews.llvm.org/D4746
llvm-svn: 214740
This patch removes the empty coverage mapping regions.
Those regions were produced by clang's old mapping region generation
algorithm, but the new algorithm doesn't generate them.
llvm-svn: 213981
This patch implements the data structures, the reader and
the writers for the new code coverage mapping system.
The new code coverage mapping system uses the instrumentation
based profiling to provide code coverage analysis.
llvm-svn: 213910