Eli Friedman c0bba1a96d [LoopReroll] Make root-finding more aggressive. ...

Allow using an instruction other than a mul or phi as the base for
root-finding. For example, the included testcase includes a loop
which requires using a getelementptr as the base for root-finding.

Differential Revision: https://reviews.llvm.org/D26529

llvm-svn: 287588

2016-11-21 22:35:34 +00:00

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