+typedef struct ia32_isa_t ia32_isa_t;
+typedef struct ia32_irn_ops_t ia32_irn_ops_t;
+typedef struct ia32_intrinsic_env_t ia32_intrinsic_env_t;
+
+typedef struct ia32_irg_data_t {
+ ir_node **blk_sched; /**< an array containing the scheduled blocks */
+ unsigned do_x87_sim:1; /**< set to 1 if x87 simulation should be enforced */
+ unsigned dump:1; /**< set to 1 if graphs should be dumped */
+ ir_node *noreg_gp; /**< unique NoReg_GP node */
+ ir_node *noreg_vfp; /**< unique NoReg_VFP node */
+ ir_node *noreg_xmm; /**< unique NoReg_XMM node */
+
+ ir_node *fpu_trunc_mode; /**< truncate fpu mode */
+ ir_node *get_eip; /**< get eip node */
+} ia32_irg_data_t;
+
+/**
+ * IA32 ISA object
+ */
+struct ia32_isa_t {
+ arch_env_t base; /**< must be derived from arch_env_t */
+ pmap *types; /**< A map of modes to primitivetypes */
+ pmap *tv_ent; /**< A map of entities that store const tarvals */
+ const be_machine_t *cpu; /**< the abstract machine */
+};
+
+/**
+ * A helper type collecting needed info for IA32 intrinsic lowering.
+ */
+struct ia32_intrinsic_env_t {
+ ia32_isa_t *isa; /**< the isa object */
+ ir_graph *irg; /**< the irg, these entities belong to */
+ ir_entity *divdi3; /**< entity for __divdi3 library call */
+ ir_entity *moddi3; /**< entity for __moddi3 library call */
+ ir_entity *udivdi3; /**< entity for __udivdi3 library call */
+ ir_entity *umoddi3; /**< entity for __umoddi3 library call */
+};
+
+typedef enum transformer_t {
+ TRANSFORMER_DEFAULT,
+#ifdef FIRM_GRGEN_BE
+ TRANSFORMER_PBQP,
+ TRANSFORMER_RAND
+#endif
+} transformer_t;
+
+#ifdef FIRM_GRGEN_BE
+/** The selected transformer. */
+extern transformer_t be_transformer;
+
+#else
+#define be_transformer TRANSFORMER_DEFAULT
+#endif
+
+/** The mode for the floating point control word. */
+extern ir_mode *ia32_mode_fpcw;
+
+static inline ia32_irg_data_t *ia32_get_irg_data(const ir_graph *irg)
+{
+ return (ia32_irg_data_t*) be_birg_from_irg(irg)->isa_link;
+}