[llvm] [AMDGPU] Classify FLAT instructions as VMEM (PR #137148)

[Matt Arsenault via llvm-commits]

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@@ -449,7 +449,9 @@ class SIInstrInfo final : public AMDGPUGenInstrInfo {
   }
 
   static bool isVMEM(const MachineInstr &MI) {
-    return isMUBUF(MI) || isMTBUF(MI) || isImage(MI);
+    if (isFLAT(MI))
+      assert(usesVM_CNT(MI) && "oh no");
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arsenm wrote:

Leftover debug 

https://github.com/llvm/llvm-project/pull/137148