Sam Parker 0b53e8454b [BPI] Look through bitcasts in calcZeroHeuristic ...

Constant hoisting may have hidden a constant behind a bitcast so that
it isn't folded into its users. However, this prevents BPI from
calculating some of its heuristics that are based upon constant
values. So, I've added a simple helper function to look through these
casts.

Differential Revision: https://reviews.llvm.org/D58166

llvm-svn: 354119

2019-02-15 11:50:21 +00:00

37 KiB

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