llvm/lib/Transforms
JF Bastien 063eb4e389 Fix mergefunc infinite loop
Self-referential constants containing references to a merged function
no longer cause the MergeFunctions pass to infinite loop. Also adds a
reproduction IR which would otherwise fail, which was isolated from a similar
issue in Chromium.

Author: jrkoenig
Reviewers: nlewycky, jfb
Subscribers: llvm-commits, nlewycky, jfb

Differential Revision: http://reviews.llvm.org/D11208

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242337 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-15 21:51:33 +00:00
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2015-07-15 21:51:33 +00:00