L18_DESC
SIG_EXPR_DECL_SINGLE(ROMA12, ROM8, L18_DESC, VPOOFF0_DESC);
SIG_EXPR_DECL_SINGLE(ROMA12, ROM16, L18_DESC, VPOOFF0_DESC);
SIG_EXPR_DECL_SINGLE(VPOG2, VPO12, L18_DESC, VPO12_DESC);
SIG_EXPR_DECL_SINGLE(VPOG2, VPO24, L18_DESC, VPO24_DESC);
SIG_EXPR_DECL_SINGLE(VPOG2, VPOOFF1, L18_DESC, VPOOFF1_DESC);