GL_ARB_gl_spirv on i965, iris. GL_ARB_spirv_extensions on i965, iris. GL_EXT_demote_to_helper_invocation on iris, i965. OpenGL 4.6 on i965, iris. VK_KHR_shader_clock on Intel. VK_KHR_shader_float_controls on Intel. VK_EXT_shader_subgroup_ballot on Intel. VK_EXT_shader_subgroup_vote on Intel.