2 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_llvm/llvm-wrapper/LLVMWrapper.h b/compiler/rustc_llvm/llvm-wrapper/LLVMWrapper.h
index ad97ede8e9c..834120efa67 100644
--- a/compiler/rustc_llvm/llvm-wrapper/LLVMWrapper.h
+++ b/compiler/rustc_llvm/llvm-wrapper/LLVMWrapper.h
@@ -89,6 +89,7 @@ enum LLVMRustAttribute {
   AllocatedPointer = 38,
   AllocAlign = 39,
   SanitizeSafeStack = 40,
+  FnRetThunkExtern = 41,
 };
 
 typedef struct OpaqueRustString *RustStringRef;
diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index bf870e28acd..b227dd76f02 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -278,6 +278,8 @@ static Attribute::AttrKind fromRust(LLVMRustAttribute Kind) {
     return Attribute::AllocAlign;
   case SanitizeSafeStack:
     return Attribute::SafeStack;
+  case FnRetThunkExtern:
+    return Attribute::FnRetThunkExtern;
   }
   report_fatal_error("bad AttributeKind");
 }