const half r_0 = 0.0; noinline half opt_barrier_0(const half x); half2 compute_ba_0(const half2 rg); noinline half opt_barrier_0(const half x) { return x; } half2 compute_ba_0(const half2 rg) { return rg; } half4 main(float2 xy) { const half g = 1.0; return half4(half4(opt_barrier_0(r_0), 1.0, compute_ba_0(half2(0.0, opt_barrier_0(g))))); }