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

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,84 @@
+# RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-coalescing -run-pass=register-coalescer \
+# RUN:   -o - %s | FileCheck %s
+---
+name:            _Z13testTransposeIfLj31ELj17EEvv
+alignment:       16
+exposesReturnsTwice: false
+legalized:       false
+regBankSelected: false
+selected:        false
+failedISel:      false
+tracksRegLiveness: true
+hasWinCFI:       false
+callsEHReturn:   false
+callsUnwindInit: false
+hasEHCatchret:   false
+hasEHScopes:     false
+hasEHFunclets:   false
+isOutlined:      false
+debugInstrRef:   false
+failsVerification: false
+tracksDebugUserValues: false
+registers:
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arsenm wrote:

Can drop the section too, the uses have the inline class specifiers 

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