groupshared int zero[2][3]; struct tint_symbol_1 { uint local_invocation_index : SV_GroupIndex; }; void main_inner(uint local_invocation_index) { { for(uint idx = local_invocation_index; (idx < 6u); idx = (idx + 1u)) { const uint i = (idx / 3u); const uint i_1 = (idx % 3u); zero[i][i_1] = 0; } } GroupMemoryBarrierWithGroupSync(); int v[2][3] = zero; } [numthreads(1, 1, 1)] void main(tint_symbol_1 tint_symbol) { main_inner(tint_symbol.local_invocation_index); return; }