1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
index 707aeba22cc..7becba4ccd4 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
@@ -241,6 +241,10 @@ pub fn set_linkage(llglobal: &Value, linkage: Linkage) {
     }
 }
 
+pub fn is_declaration(llglobal: &Value) -> bool {
+    unsafe { LLVMIsDeclaration(llglobal) == ffi::True }
+}
+
 pub fn get_visibility(llglobal: &Value) -> Visibility {
     unsafe { LLVMGetVisibility(llglobal) }.to_rust()
 }