Vendor import of llvm-project branch release/21.x llvmorg-21.1.7-0-gcd708029e0b2, a.k.a. 21.1.7 release.vendor/llvm-project/llvmorg-21.1.7-0-gcd708029e0b2

1 files changed, 9 insertions, 5 deletions

diff --git a/clang/lib/CodeGen/CGCoroutine.cpp b/clang/lib/CodeGen/CGCoroutine.cpp
index 0fc488e98aaf..117ef3d16e21 100644
--- a/clang/lib/CodeGen/CGCoroutine.cpp
+++ b/clang/lib/CodeGen/CGCoroutine.cpp
@@ -707,11 +707,15 @@ struct GetReturnObjectManager {
     Builder.CreateStore(Builder.getFalse(), GroActiveFlag);
 
     GroEmission = CGF.EmitAutoVarAlloca(*GroVarDecl);
-    auto *GroAlloca = dyn_cast_or_null<llvm::AllocaInst>(
-        GroEmission.getOriginalAllocatedAddress().getPointer());
-    assert(GroAlloca && "expected alloca to be emitted");
-    GroAlloca->setMetadata(llvm::LLVMContext::MD_coro_outside_frame,
-                           llvm::MDNode::get(CGF.CGM.getLLVMContext(), {}));
+
+    if (!GroVarDecl->isNRVOVariable()) {
+      // NRVO variables don't have allocas and won't have the same issue.
+      auto *GroAlloca = dyn_cast_or_null<llvm::AllocaInst>(
+          GroEmission.getOriginalAllocatedAddress().getPointer());
+      assert(GroAlloca && "expected alloca to be emitted");
+      GroAlloca->setMetadata(llvm::LLVMContext::MD_coro_outside_frame,
+                             llvm::MDNode::get(CGF.CGM.getLLVMContext(), {}));
+    }
 
     // Remember the top of EHStack before emitting the cleanup.
     auto old_top = CGF.EHStack.stable_begin();