1; RUN: not llvm-as < %s 2>&1 | FileCheck %s 2 3define void @f(i32* %a, i32 %b, i32 %c) { 4; CHECK: invalid cmpxchg failure ordering 5 %x = cmpxchg i32* %a, i32 %b, i32 %c acq_rel unordered 6 ret void 7} 8