[CMake] Adding support for passing in profiling data.

Adds LLVM_PROFDATA_FILE option to allow specifying a profile data file to be used during compilation of LLVM and subprojects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250108 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed