llvm-project/llvm/test/Assembler/byref-parse-error-9.ll

; RUN: not llvm-as < %s 2>&1 | FileCheck %s

; CHECK: <stdin>:[[@LINE+1]]:27: error: invalid use of parameter-only attribute on a function{{$}}
define void @test_byref() byref=4 {
  ret void
}