4 Commits

Author	SHA1	Message	Date
Michael Kuperstein	093715aad1	[PM] Port LowerGuardIntrinsic to the new PM. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277057 91177308-0d34-0410-b5e6-96231b3b80d8	2016-07-28 22:08:41 +00:00
Sanjoy Das	b4edd72f76	[Guards] Add branch metadata when lowering ... Guards are expected to basically never fail. Reflect this in the branch probabilities in their lowered form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269791 91177308-0d34-0410-b5e6-96231b3b80d8	2016-05-17 17:51:19 +00:00
Sanjoy Das	793e61921c	[LowerGuardIntrinsics] Keep track of !make.implicit metadata ... If a guard call being lowered by LowerGuardIntrinsics has the `!make.implicit` metadata attached, then reattach the metadata to the branch in the resulting expanded form of the intrinsic. This allows us to implement null checks as guards and still get the benefit of implicit null checks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268148 91177308-0d34-0410-b5e6-96231b3b80d8	2016-04-30 00:55:59 +00:00
Sanjoy Das	de765686f8	Introduce a @llvm.experimental.guard intrinsic ... Summary: 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 to normal control flow - Inliner support [1]: http://lists.llvm.org/pipermail/llvm-dev/2016-February/095523.html Reviewers: reames, atrick, chandlerc, rnk, JosephTremoulet, echristo Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D18527 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264976 91177308-0d34-0410-b5e6-96231b3b80d8	2016-03-31 00:18:46 +00:00