[clang] [llvm] [AMDGPU] Introduce asyncmark/wait intrinsics (PR #173259)

[Pierre van Houtryve via cfe-commits]

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@@ -1207,7 +1261,56 @@ void WaitcntBrackets::print(raw_ostream &OS) const {
   }
   OS << '\n';
 
+  OS << "Async score: ";
+  if (AsyncScore.empty())
+    OS << "none";
+  else
+    llvm::interleaveComma(AsyncScore, OS);
+  OS << '\n';
+
+  OS << "Async markers:";
+  if (AsyncMarkers.empty())
+    OS << "none";
   OS << '\n';
+
+  for (const auto &Marker : AsyncMarkers) {
+    for (auto T : inst_counter_types()) {
+      unsigned MarkedScore = Marker[T];
+      switch (T) {
+      case LOAD_CNT:
+        OS << "    " << (ST->hasExtendedWaitCounts() ? "LOAD" : "VM")
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Pierre-vh wrote:

I feel like there is a good opportunity to simplify this and the switch above as well. e.g. move all of the printing part into a `toString(T)` util so this entire switch and the one above become `OS << toString(T) << ": " << MarkedScore` ?

https://github.com/llvm/llvm-project/pull/173259