diff --git a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
--- a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
@@ -895,7 +895,7 @@
   } else if (Ty->isStructTy()) {
     auto *DIStruct = Builder.createStructType(
         Scope, Name, Scope->getFile(), LineNum, Layout.getTypeSizeInBits(Ty),
-        Layout.getPrefTypeAlignment(Ty), llvm::DINode::FlagArtificial, nullptr,
+        Layout.getPrefTypeAlignment(Ty) * CHAR_BIT, llvm::DINode::FlagArtificial, nullptr,
         llvm::DINodeArray());
 
     auto *StructTy = cast<StructType>(Ty);