[mips] Guard indirect and tailcall pseudo instructions correctly.

Previously these pseudo instructions were not guarded by ISA, so their
select was dependant on the ordering of the entries in the DAG matcher.

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D39723


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317681 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed