[cmake] Use a sane default for LLVM_PROFILE_DATA_DIR
It's been pointed out that arbitrarily spraying raw profiles into a
build directory is insane. Doing this wastes a tremendous amount of
space and is also very lossy, since the test harness tends to wipe away
temporary sub-directories (which usually contain relevant profile data).
The new default is a `profiles` directory inside of the build dir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276504 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed