[llvm] [PowerPC] Add test after #75271 on PPC. NFC. (PR #75616)

[Nemanja Ivanovic via llvm-commits]

================
@@ -0,0 +1,33 @@
+# RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-coalescing -run-pass=register-coalescer \
+# RUN:   -o - %s | FileCheck %s
+---
+name:            _Z13testTransposeIfLj31ELj17EEvv
+alignment:       16
+tracksRegLiveness: true
+frameInfo:
+  maxAlignment:    128
+stack:
+  - { id: 0, size: 128, alignment: 128, local-offset: -128 }
+  - { id: 1, size: 4096, alignment: 16, local-offset: -4224 }
----------------
nemanjai wrote:

Nit (feel free to ignore): there don't seem to be any stack accesses here. Do we need these?

https://github.com/llvm/llvm-project/pull/75616