[PATCH] D18527: Introduce a @llvm.experimental.guard.on intrinsic

[Sanjoy Das via llvm-commits]

sanjoy created this revision.
sanjoy added reviewers: reames, atrick, chandlerc, rnk, JosephTremoulet, echristo.
sanjoy added a subscriber: llvm-commits.
Herald added a subscriber: mcrosier.

As discussed on llvm-dev[1].

This change adds the basic boilerplate code around having this intrinsic
in LLVM:

 - Changes in Intrinsics.td, and the IR Verifier
 - A lowering pass to lower @llvm.experimental.guard.on to normal
   control flow
 - Inliner support

[1]: http://lists.llvm.org/pipermail/llvm-dev/2016-February/095523.html

http://reviews.llvm.org/D18527

Files:
  docs/LangRef.rst
  include/llvm/IR/Intrinsics.td
  include/llvm/InitializePasses.h
  include/llvm/Transforms/Scalar.h
  lib/IR/Verifier.cpp
  lib/Transforms/Scalar/CMakeLists.txt
  lib/Transforms/Scalar/LowerGuardIntrinsic.cpp
  lib/Transforms/Scalar/Scalar.cpp
  lib/Transforms/Utils/InlineFunction.cpp
  test/Transforms/Inline/guard-intrinsic.ll
  test/Transforms/LowerGuardIntrinsic/basic.ll
  test/Verifier/guard-intrinsic.ll

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