[Mlir-commits] [mlir] [MLIR][LLVM] Add ProfileSummary module flag support (PR #138070)

[Christian Ulmann]

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@@ -300,9 +300,71 @@ convertModuleFlagValue(StringRef key, ArrayAttr arrayAttr,
     }
     return llvm::MDTuple::getDistinct(context, nodes);
   }
+
   return nullptr;
 }
 
+static llvm::Metadata *convertModuleFlagProfileSummaryAttr(
+    StringRef key, ModuleFlagProfileSummaryAttr summaryAttr,
+    llvm::IRBuilderBase &builder, LLVM::ModuleTranslation &moduleTranslation) {
+  llvm::LLVMContext &context = builder.getContext();
+  llvm::MDBuilder mdb(context);
+  SmallVector<llvm::Metadata *> summaryNodes;
+
+  auto getIntTuple = [&](StringRef key, uint64_t val) -> llvm::MDTuple * {
+    SmallVector<llvm::Metadata *> tupleNodes{
+        mdb.createString(key), mdb.createConstant(llvm::ConstantInt::get(
+                                   llvm::Type::getInt64Ty(context), val))};
+    return llvm::MDTuple::get(context, tupleNodes);
+  };
+
+  SmallVector<llvm::Metadata *> fmtNode{
+      mdb.createString("ProfileFormat"),
+      mdb.createString(
+          stringifyProfileSummaryFormatKind(summaryAttr.getFormat()))};
+
+  SmallVector<llvm::Metadata *> vals = {
+      llvm::MDTuple::get(context, fmtNode),
+      getIntTuple("TotalCount", summaryAttr.getTotalCount()),
+      getIntTuple("MaxCount", summaryAttr.getMaxCount()),
+      getIntTuple("MaxInternalCount", summaryAttr.getMaxInternalCount()),
+      getIntTuple("MaxFunctionCount", summaryAttr.getMaxFunctionCount()),
+      getIntTuple("NumCounts", summaryAttr.getNumCounts()),
+      getIntTuple("NumFunctions", summaryAttr.getNumFunctions()),
+  };
+
+  if (summaryAttr.getIsPartialProfile())
+    vals.push_back(
+        getIntTuple("IsPartialProfile", *summaryAttr.getIsPartialProfile()));
+
+  if (summaryAttr.getPartialProfileRatio()) {
+    SmallVector<llvm::Metadata *> tupleNodes{
+        mdb.createString("PartialProfileRatio"),
+        mdb.createConstant(llvm::ConstantFP::get(
+            llvm::Type::getDoubleTy(context),
+            summaryAttr.getPartialProfileRatio().getValue()))};
+    vals.push_back(llvm::MDTuple::get(context, tupleNodes));
+  }
+
+  SmallVector<llvm::Metadata *> detailedEntries;
+  for (auto detailedEntry : summaryAttr.getDetailedSummary()) {
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Dinistro wrote:

Nit: Don't use `auto` here.

https://github.com/llvm/llvm-project/pull/138070