[clang] [llvm] [SystemZ] Do not extend integer arguments in z/OS XPLINK64 ABI (PR #206833)

[Zibi Sarbinowski via cfe-commits]

https://github.com/zibi2 commented:

Ready for another review round, but please note I'm still running test on z/OS and I might need to update other lit tests besides what's already included.

https://github.com/llvm/llvm-project/pull/206833