Could not find include file 'llvm/Intrinsics.td'

Thank you, Mr. Criswell.
It actually worked but now this tblgen cannot find 'TargetSchedule.td' which is in the folder where 'Target.td' is in, as follows:

Included from ARM.td:18:
Parsing ../Target.td:121: Could not find include file 'TargetSchedule.td'!

The location of 'Intrinsics.td' is different from that of 'Target.td'.
How can I deal with this in this case?
Thank you very much.

Seung Jae Lee

You need to also pass -I.../llvm/lib/Target

-Chris