[MemorySSA] Refactor CachingWalker.

Summary:
Refactor caching walker to make creating a walker that skips the
starting access strightforward.

Reviewers: george.burgess.iv

Subscribers: sanjoy, jlebar, Prazek, llvm-commits, jfb

Differential Revision: https://reviews.llvm.org/D55957

llvm-svn: 350558
2 files changed
tree: 45767969efd2c1c8663ee443c9d0d2c02fab68ec
  1. clang/
  2. clang-tools-extra/
  3. compiler-rt/
  4. debuginfo-tests/
  5. libclc/
  6. libcxx/
  7. libcxxabi/
  8. libunwind/
  9. lld/
  10. lldb/
  11. llgo/
  12. llvm/
  13. openmp/
  14. parallel-libs/
  15. polly/
  16. pstl/
  17. README.md
README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.