Justin Lebar 5948b35436 [LSV] Use a set rather than an ArraySlice at the end of getVectorizablePrefix. NFC
Summary: This avoids a small O(n^2) loop.

Reviewers: asbirlea

Subscribers: mzolotukhin, llvm-commits, arsenm

Differential Revision: https://reviews.llvm.org/D23473

llvm-svn: 278581
2016-08-13 00:04:12 +00:00
..
2016-08-11 20:38:39 +00:00