tree 45d4caafe14ac01edcffdd5ed2d38f671e8c5a83
parent 64739273066162d5dc908503c1ffd3b7615c228c
author Michael Zolotukhin <mzolotukhin@apple.com> 1456455425 +0000
committer Michael Zolotukhin <mzolotukhin@apple.com> 1456455425 +0000

[LoopUnrollAnalyzer] Check that we're using SCEV for the same loop we're simulating.

Summary: Check that we're using SCEV for the same loop we're simulating. Otherwise, we might try to use the iteration number of the current loop in SCEV expressions for inner/outer loops IVs, which is clearly incorrect.

Reviewers: chandlerc, hfinkel

Subscribers: sanjoy, llvm-commits, mzolotukhin

Differential Revision: http://reviews.llvm.org/D17632

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261958 91177308-0d34-0410-b5e6-96231b3b80d8