Previously we would fail an assertion in RemoveNodeFromCSEMaps after lowering: t3: ch = llvm.amdgcn.s.barrier.join t0, TargetConstant:i64<2973>, Constant:i32<0> to: t6: ch = S_BARRIER_JOIN_IMM TargetConstant:i32<0>
__builtin_elementwise_sub_sat