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-rw-r--r--src/librustc_codegen_llvm/attributes.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/attributes.rs b/src/librustc_codegen_llvm/attributes.rs
index 827ebff10f5..dab5cab65cd 100644
--- a/src/librustc_codegen_llvm/attributes.rs
+++ b/src/librustc_codegen_llvm/attributes.rs
@@ -223,6 +223,9 @@ pub fn from_fn_attrs(
     if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::COLD) {
         Attribute::Cold.apply_llfn(Function, llfn);
     }
+    if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::FFI_RETURNS_TWICE) {
+        Attribute::ReturnsTwice.apply_llfn(Function, llfn);
+    }
     if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) {
         naked(llfn, true);
     }