SKIP: FAILED cbuffer cbuffer_ubo : register(b0, space0) { uint4 ubo[1]; }; struct S { int data[64]; }; RWByteAddressBuffer result : register(u1, space0); [numthreads(1, 1, 1)] void f() { S s = (S)0; s.data[asint(ubo[0].x)] = 1; result.Store(0u, asuint(s.data[3])); return; } C:\src\tint\test\Shader@0x000002C587F87250(14,3-25): error X3500: array reference cannot be used as an l-value; not natively addressable