[llvm] [AMDGPU] Retain subreg when legalising generic operand (PR #212636)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,37 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
+# RUN: llc -mtriple=amdgpu12.50 -run-pass=si-fix-sgpr-copies -verify-machineinstrs -o - %s | FileCheck %s
+
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arsenm wrote:

Can you find an existing t16 SIFixSGPRCopies test to put this in 

https://github.com/llvm/llvm-project/pull/212636