[safestack] Requires a valid TargetMachine to be passed to the SafeStack pass.

Patch by Michael LeMay

Differential revision: http://reviews.llvm.org/D24896


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283248 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed