Add isHotBB helper function to ProfileSummaryInfo

Summary: This will unify all BB hotness checks.

Reviewers: eraman, davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D26353

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286415 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed