[llvm] [AMDGPU] GCNRegPressure printing pass for testing. (PR #70031)

[Valery Pykhtin via llvm-commits]

vpykhtin wrote:

> but I need to try running this pass with llc lit tests.

I believe my printing pass is inapplicable for _.ll_ tests because I cannot run separate passes there?

I think I'm done with this patch.

P.S. If I understood correctly _-print<...>_ syntax is only available with the new pass manager which isn't available for our target yet?


https://github.com/llvm/llvm-project/pull/70031