[PATCH] D71383: [LoopGuard] Instructions in loop preheader and loop exit must be safe to execute speculatively.

[Whitney Tsang via Phabricator via llvm-commits]

Whitney created this revision.
Whitney added reviewers: Meinersbur, reames, fhahn, kbarton, bmahjour, etiotto.
Whitney added a project: LLVM.
Herald added subscribers: llvm-commits, hiraditya.

Disallow loops with preheader or exit block which contains instructions that are not safe to execute speculatively to be considered as guarded loop.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71383

Files:
  llvm/lib/Analysis/LoopInfo.cpp
  llvm/unittests/Analysis/LoopInfoTest.cpp

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