[llvm] [SystemZ] i128 cost model (PR #78528)

[Jonas Paulsson via llvm-commits]

================
@@ -1,27 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
----------------
JonPsson1 wrote:

oops - sorry, I didn't realize that was a z10 test and thought I had replaced it with new tests in i128-cmp-ext-conv.ll. Adding it back.


https://github.com/llvm/llvm-project/pull/78528