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diff --git a/contrib/llvm-project/clang/lib/StaticAnalyzer/Frontend/ModelConsumer.cpp b/contrib/llvm-project/clang/lib/StaticAnalyzer/Frontend/ModelConsumer.cpp
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+++ b/contrib/llvm-project/clang/lib/StaticAnalyzer/Frontend/ModelConsumer.cpp
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+//===--- ModelConsumer.cpp - ASTConsumer for consuming model files --------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements an ASTConsumer for consuming model files.
+///
+/// This ASTConsumer handles the AST of a parsed model file. All top level
+/// function definitions will be collected from that model file for later
+/// retrieval during the static analysis. The body of these functions will not
+/// be injected into the ASTUnit of the analyzed translation unit. It will be
+/// available through the BodyFarm which is utilized by the AnalysisDeclContext
+/// class.
+///
+//===----------------------------------------------------------------------===//
+
+#include "clang/StaticAnalyzer/Frontend/ModelConsumer.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclGroup.h"
+
+using namespace clang;
+using namespace ento;
+
+ModelConsumer::ModelConsumer(llvm::StringMap<Stmt *> &Bodies)
+    : Bodies(Bodies) {}
+
+bool ModelConsumer::HandleTopLevelDecl(DeclGroupRef DeclGroup) {
+  for (const Decl *D : DeclGroup) {
+    // Only interested in definitions.
+    const auto *func = llvm::dyn_cast<FunctionDecl>(D);
+    if (func && func->hasBody()) {
+      Bodies.insert(std::make_pair(func->getName(), func->getBody()));
+    }
+  }
+  return true;
+}