[llvm] [AMDGPU] Fix for 131386 by reducing implicit definitions on register restoration (PR #133986)

[Ryan Buchner via llvm-commits]

bababuck wrote:

Ping

Adding @arsenm, apologies is this is out of your area, but you seem to be involved in the AMDGPU backend.

https://github.com/llvm/llvm-project/pull/133986