From f65dcba83ce5035ab88a85fe17628b447eb56e1b Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Thu, 2 Dec 2021 22:02:54 +0100
Subject: Vendor import of llvm-project main
 llvmorg-14-init-11187-g222442ec2d71.

---
 llvm/lib/Transforms/Utils/CloneModule.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'llvm/lib/Transforms/Utils/CloneModule.cpp')

diff --git a/llvm/lib/Transforms/Utils/CloneModule.cpp b/llvm/lib/Transforms/Utils/CloneModule.cpp
index 200deca4b317..57c273a0e3c5 100644
--- a/llvm/lib/Transforms/Utils/CloneModule.cpp
+++ b/llvm/lib/Transforms/Utils/CloneModule.cpp
@@ -135,10 +135,18 @@ std::unique_ptr<Module> llvm::CloneModule(
   // Similarly, copy over function bodies now...
   //
   for (const Function &I : M) {
-    if (I.isDeclaration())
+    Function *F = cast<Function>(VMap[&I]);
+
+    if (I.isDeclaration()) {
+      // Copy over metadata for declarations since we're not doing it below in
+      // CloneFunctionInto().
+      SmallVector<std::pair<unsigned, MDNode *>, 1> MDs;
+      I.getAllMetadata(MDs);
+      for (auto MD : MDs)
+        F->addMetadata(MD.first, *MapMetadata(MD.second, VMap));
       continue;
+    }
 
-    Function *F = cast<Function>(VMap[&I]);
     if (!ShouldCloneDefinition(&I)) {
       // Skip after setting the correct linkage for an external reference.
       F->setLinkage(GlobalValue::ExternalLinkage);
-- 
cgit v1.2.3