+typedef enum { ia32_Normal, ia32_Const, ia32_SymConst, ia32_AddrModeD, ia32_AddrModeS } ia32_op_type_t;
+typedef enum {
+ ia32_am_None = 0, /**<< no addrmode support */
+ ia32_am_Dest = 1, /**<< addrmode for destination only */
+ ia32_am_Source = 2, /**<< addrmode for source only */
+ ia32_am_Full = 3 /**<< full addmode support */
+} ia32_am_type_t;
+
+/**
+ * Different AM types:
+ * O - Offset is set
+ * B - Base is set
+ * I - Index is set
+ * S - Scale is set
+ */
+
+enum {
+ ia32_O = (1 << 0),
+ ia32_B = (1 << 1),
+ ia32_I = (1 << 2),
+ ia32_S = (1 << 3)
+};
+
+typedef enum {
+ ia32_am_N = 0,
+ ia32_am_O = ia32_O,
+ ia32_am_B = ia32_B,
+ ia32_am_I = ia32_I,
+ ia32_am_IS = ia32_I | ia32_S,
+ ia32_am_BI = ia32_B | ia32_I,
+ ia32_am_OB = ia32_O | ia32_B,
+ ia32_am_OI = ia32_O | ia32_I,
+ ia32_am_OIS = ia32_O | ia32_I | ia32_S,
+ ia32_am_OBIS = ia32_O | ia32_B | ia32_I | ia32_S
+} ia32_am_flavour_t;
+
+typedef struct _ia32_register_req_t {
+ const arch_register_req_t req;
+ int same_pos; /**< in case of "should be same" we need to remember the pos to get the irn */
+ int different_pos; /**< in case of "should be different" we need to remember the pos to get the irn */
+} ia32_register_req_t;
+
+typedef struct _ia32_attr_t {
+ struct {
+ unsigned tp:3; /**< ia32 node type */
+
+ unsigned am_support:2; /**< indicates addrmode type supported by this node */
+ unsigned am_flavour:4; /**< the concrete addrmode characteristics */
+ unsigned am_scale:2; /**< addrmode scale for index register */
+
+ unsigned offs_sign:1; /**< sign bit of the first offset */
+
+ unsigned use_frame:1; /**< indicates whether the operation uses the frame pointer or not */
+
+ unsigned op_flav:2; /**< flavour of an op (flavour_Div/Mod/DivMod) */
+
+ unsigned flags:4; /**< indicating if spillable and/or rematerializeable */
+
+ unsigned is_commutative:1; /**< indicates whether op is commutative or not */
+
+ unsigned n_res:10; /**< number of results produced by this node */
+ } data;