[PATCH] D32839: SimplifyLibCalls: Optimize wcslen

[Matthias Braun via Phabricator via llvm-commits]

MatzeB updated this revision to Diff 98005.
MatzeB marked an inline comment as done.
MatzeB added a comment.

- Add functionality to TargetLibraryInfo to determine the size of wchar_t for a target triple (an upcoming clang patch will introduce an `assert()` on the clang side to catch when they become out of sync).
- getConstantDataArrayInfo() now returns Offset+Length into the ConstantDataArray and corrects handling of zeroinitializers


Repository:
  rL LLVM

https://reviews.llvm.org/D32839

Files:
  include/llvm/Analysis/TargetLibraryInfo.h
  include/llvm/Analysis/ValueTracking.h
  include/llvm/IR/Constants.h
  include/llvm/Transforms/Utils/SimplifyLibCalls.h
  lib/Analysis/TargetLibraryInfo.cpp
  lib/Analysis/ValueTracking.cpp
  lib/IR/Constants.cpp
  lib/Transforms/Utils/SimplifyLibCalls.cpp
  test/Transforms/InstCombine/wcslen-1.ll
  test/Transforms/InstCombine/wcslen-2.ll

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