[llvm] [AMDGPU] Debug dump for AMDGPU resource usage (PR #122952)

[Matt Arsenault via llvm-commits]

================
@@ -165,6 +174,20 @@ void MCResourceInfo::gatherResourceInfo(
   const TargetMachine &TM = MF.getTarget();
   MCSymbol *FnSym = TM.getSymbol(&MF.getFunction());
 
+  LLVM_DEBUG(dbgs() << "MCResUse: Gathering resource information for "
+                    << FnSym->getName() << "\n");
+  // clang-format off
+  LLVM_DEBUG(
+    if (!FRI.Callees.empty()) {
+      dbgs() << "MCResUse: Callees:\n";
+      for (const Function *Callee : FRI.Callees) {
+        MCSymbol *CalleeFnSym = TM.getSymbol(&Callee->getFunction());
+        dbgs() << "MCResUse:   " << CalleeFnSym->getName() << "\n";
----------------
arsenm wrote:

```suggestion
        dbgs() << "MCResUse:   " << CalleeFnSym->getName() << '\n';
```

https://github.com/llvm/llvm-project/pull/122952