[llvm] [AMDGPU] Analyze REG_SEQUENCE To Remove Redundant CMP Instructions (PR #167364)

[Patrick Simmons via llvm-commits]

linuxrocks123 wrote:

As requested there is a commit, https://github.com/llvm/llvm-project/pull/167364/commits/89ee19eee9c06c1d366ecaf67e8d2308b159c853, which allows viewing the impact of this PR versus the main branch on the added testcase.  I don't know if we want to add a new testcase since there are effects on existing testcases that can be used to check the impact, but it's there in case we do.

https://github.com/llvm/llvm-project/pull/167364