[llvm] [AMDGPU] Detect VALU-after-MFMA hazard in post-RA scheduler's getHazardType (PR #184084)

[Matt Arsenault via llvm-commits]

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@@ -2464,6 +2471,24 @@ int GCNHazardRecognizer::checkMAIHazards(MachineInstr *MI) {
   return ST.hasGFX90AInsts() ? checkMAIHazards90A(MI) : checkMAIHazards908(MI);
 }
 
+int GCNHazardRecognizer::checkVALUImmediatelyAfterMFMAHazard(MachineInstr *MI) {
+  if (!ST.hasMAIInsts())
+    return 0;
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arsenm wrote:

Kind of don't need this, the MFMA instructions just won't appear 

https://github.com/llvm/llvm-project/pull/184084