vendor/llvm-project/llvmorg-18-init-16864-g3b3ee1f53424

1 files changed, 50 insertions, 2 deletions

diff --git a/llvm/utils/TableGen/ExegesisEmitter.cpp b/llvm/utils/TableGen/ExegesisEmitter.cpp
index 736f1220be14..d48c7f3a480f 100644
--- a/llvm/utils/TableGen/ExegesisEmitter.cpp
+++ b/llvm/utils/TableGen/ExegesisEmitter.cpp
@@ -81,6 +81,11 @@ collectPfmCounters(const RecordKeeper &Records) {
                         "duplicate ResourceName " + ResourceName);
       AddPfmCounterName(IssueCounter);
     }
+
+    for (const Record *ValidationCounter :
+         Def->getValueAsListOfDefs("ValidationCounters"))
+      AddPfmCounterName(ValidationCounter);
+
     AddPfmCounterName(Def->getValueAsDef("CycleCounter"));
     AddPfmCounterName(Def->getValueAsDef("UopsCounter"));
   }
@@ -100,6 +105,17 @@ ExegesisEmitter::ExegesisEmitter(RecordKeeper &RK)
   Target = std::string(Targets[0]->getName());
 }
 
+struct ValidationCounterInfo {
+  int64_t EventNumber;
+  StringRef EventName;
+  unsigned PfmCounterID;
+};
+
+bool EventNumberLess(const ValidationCounterInfo &LHS,
+                     const ValidationCounterInfo &RHS) {
+  return LHS.EventNumber < RHS.EventNumber;
+}
+
 void ExegesisEmitter::emitPfmCountersInfo(const Record &Def,
                                           unsigned &IssueCountersTableOffset,
                                           raw_ostream &OS) const {
@@ -109,6 +125,31 @@ void ExegesisEmitter::emitPfmCountersInfo(const Record &Def,
       Def.getValueAsDef("UopsCounter")->getValueAsString("Counter");
   const size_t NumIssueCounters =
       Def.getValueAsListOfDefs("IssueCounters").size();
+  const size_t NumValidationCounters =
+      Def.getValueAsListOfDefs("ValidationCounters").size();
+
+  // Emit Validation Counters Array
+  if (NumValidationCounters != 0) {
+    std::vector<ValidationCounterInfo> ValidationCounters;
+    ValidationCounters.reserve(NumValidationCounters);
+    for (const Record *ValidationCounter :
+         Def.getValueAsListOfDefs("ValidationCounters")) {
+      ValidationCounters.push_back(
+          {ValidationCounter->getValueAsDef("EventType")
+               ->getValueAsInt("EventNumber"),
+           ValidationCounter->getValueAsDef("EventType")->getName(),
+           getPfmCounterId(ValidationCounter->getValueAsString("Counter"))});
+    }
+    std::sort(ValidationCounters.begin(), ValidationCounters.end(),
+              EventNumberLess);
+    OS << "\nstatic const std::pair<ValidationEvent, const char*> " << Target
+       << Def.getName() << "ValidationCounters[] = {\n";
+    for (const ValidationCounterInfo &VCI : ValidationCounters) {
+      OS << "  { " << VCI.EventName << ", " << Target << "PfmCounterNames["
+         << VCI.PfmCounterID << "]},\n";
+    }
+    OS << "};\n";
+  }
 
   OS << "\nstatic const PfmCountersInfo " << Target << Def.getName()
      << " = {\n";
@@ -129,10 +170,17 @@ void ExegesisEmitter::emitPfmCountersInfo(const Record &Def,
 
   // Issue Counters
   if (NumIssueCounters == 0)
-    OS << "  nullptr,  // No issue counters.\n  0\n";
+    OS << "  nullptr, 0, // No issue counters\n";
   else
     OS << "  " << Target << "PfmIssueCounters + " << IssueCountersTableOffset
-       << ", " << NumIssueCounters << " // Issue counters.\n";
+       << ", " << NumIssueCounters << ", // Issue counters.\n";
+
+  // Validation Counters
+  if (NumValidationCounters == 0)
+    OS << "  nullptr, 0 // No validation counters.\n";
+  else
+    OS << "  " << Target << Def.getName() << "ValidationCounters, "
+       << NumValidationCounters << " // Validation counters.\n";
 
   OS << "};\n";
   IssueCountersTableOffset += NumIssueCounters;