1 files changed, 33 insertions, 0 deletions

diff --git a/contrib/llvm-project/llvm/lib/Analysis/StructuralHash.cpp b/contrib/llvm-project/llvm/lib/Analysis/StructuralHash.cpp
new file mode 100644
index 000000000000..244ed5d55f3f
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Analysis/StructuralHash.cpp
@@ -0,0 +1,33 @@
+//===- StructuralHash.cpp - Function Hash Printing ------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the StructuralHashPrinterPass which is used to show
+// the structural hash of all functions in a module and the module itself.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/StructuralHash.h"
+#include "llvm/IR/StructuralHash.h"
+#include "llvm/Support/CommandLine.h"
+
+using namespace llvm;
+
+PreservedAnalyses StructuralHashPrinterPass::run(Module &M,
+                                                 ModuleAnalysisManager &MAM) {
+  OS << "Module Hash: "
+     << Twine::utohexstr(StructuralHash(M, EnableDetailedStructuralHash))
+     << "\n";
+  for (Function &F : M) {
+    if (F.isDeclaration())
+      continue;
+    OS << "Function " << F.getName() << " Hash: "
+       << Twine::utohexstr(StructuralHash(F, EnableDetailedStructuralHash))
+       << "\n";
+  }
+  return PreservedAnalyses::all();
+}