[llvm] [X86] Processed test with update_llc_test_checks

Summary:
As requested in another review for a similar regression test,
I updated this test with the same utility.

Reviewers: dmgreen, craig.topper, mehdi_amini, nicolasvasilache

Reviewed By: craig.topper

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78739