Fix PR23384 (part 3 of 3)

Summary:
The patch makes instruction count the highest priority for
 LSR solution for X86 (previously registers had highest priority).

Reviewers: qcolombet

Differential Revision: http://reviews.llvm.org/D30562

From: Evgeny Stupachenko <evstupac@gmail.com>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304824 91177308-0d34-0410-b5e6-96231b3b80d8
16 files changed