2 files changed, 3 insertions, 0 deletions
diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index f5fa66f1b0e..5d5845213e2 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -150,6 +150,8 @@ from_rust(LLVMRustAttribute kind) {
       return Attribute::UWTable;
     case ZExt:
       return Attribute::ZExt;
+    case InReg:
+      return Attribute::InReg;
     default:
       llvm_unreachable("bad AttributeKind");
   }
diff --git a/src/rustllvm/rustllvm.h b/src/rustllvm/rustllvm.h
index b8c4076f4ce..8f7e0e3d918 100644
--- a/src/rustllvm/rustllvm.h
+++ b/src/rustllvm/rustllvm.h
@@ -98,6 +98,7 @@ enum LLVMRustAttribute {
     StructRet       = 16,
     UWTable         = 17,
     ZExt            = 18,
+    InReg           = 19,
 };
 
 typedef struct OpaqueRustString *RustStringRef;