Properly handle multi-element and dynamically sized allocas in getPointerDereferenceableBytes()

Reviewers: hfinkel, rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41288

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320938 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed