[msan] Don't sanitize "nosanitize" instructions

Reviewers: eugenis

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D40205

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318708 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed