iris_pack_command(GENX(3DSTATE_PS_EXTRA), psx_state, psx) {
psx.PixelShaderValid = true;
psx.PixelShaderComputedDepthMode = wm_prog_data->computed_depth_mode;
- psx.PixelShaderKillsPixel = wm_prog_data->uses_kill;
+ // XXX: alpha test / alpha to coverage :/
+ psx.PixelShaderKillsPixel = wm_prog_data->uses_kill ||
+ wm_prog_data->uses_omask;
psx.AttributeEnable = wm_prog_data->num_varying_inputs != 0;
psx.PixelShaderUsesSourceDepth = wm_prog_data->uses_src_depth;
psx.PixelShaderUsesSourceW = wm_prog_data->uses_src_w;