[PGO] Passmanagerbuilder change that enable IR level PGO instrumentation
This patch includes the passmanagerbuilder change that enables IR level PGO instrumentation. It adds two passmanagerbuilder options: -profile-generate=<profile_filename> and -profile-use=<profile_filename>. The new options are primarily for debug purpose.
Reviewers: davidxl, silvas
Differential Revision: http://reviews.llvm.org/D15828
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258420 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed