[llvm] [AMDGPU] Exclude certain opcodes from being marked as single use (PR #91802)

[Matt Arsenault via llvm-commits]

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@@ -132,6 +132,153 @@ class AMDGPUInsertSingleUseVDST : public MachineFunctionPass {
 
   AMDGPUInsertSingleUseVDST() : MachineFunctionPass(ID) {}
 
+  static bool IsValidOpcode(const MachineInstr &MI) {
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arsenm wrote:

Or could we derive this from the scheduling info? 

https://github.com/llvm/llvm-project/pull/91802