[llvm] [AMDGPU] Exclude CDNA-3 parts from cube instruction feature (PR #215484)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,97 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc -global-isel=0 -mtriple=amdgcn -mcpu=gfx900 < %s | FileCheck %s -check-prefix=GFX900-SDAG
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arsenm wrote:

Use new triples, and don't put cdna in the file name 

https://github.com/llvm/llvm-project/pull/215484