llvm-exegesis: Fix unittests include dirs when llvm is a part of another project

When llvm is a part of another project (i.e. opencl),
CMAKE_SOURCE_DIR and CMAKE_BINARY_DIR are pointing to
the parent project, which lead to build failures.

Differential Revision: https://reviews.llvm.org/D45328


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329325 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed