+ /* Nonzero if function stack realignment is tried. This flag is set
+ only once before reload. It affects register elimination. This
+ is used to generate DWARF debug info for stack variables. */
+ bool stack_realign_tried;
+
+ /* Nonzero if function being compiled needs dynamic realigned
+ argument pointer (drap) if stack needs realigning. */
+ bool need_drap;
+
+ /* Nonzero if function stack realignment estimation is done, namely
+ stack_realign_needed flag has been set before reload wrt estimated
+ stack alignment info. */
+ bool stack_realign_processed;
+
+ /* Nonzero if function stack realignment has been finalized, namely
+ stack_realign_needed flag has been set and finalized after reload. */
+ bool stack_realign_finalized;
+
+ /* True if dbr_schedule has already been called for this function. */
+ bool dbr_scheduled_p;
+};
+
+#define return_label (crtl->x_return_label)
+#define naked_return_label (crtl->x_naked_return_label)
+#define stack_slot_list (crtl->x_stack_slot_list)
+#define parm_birth_insn (crtl->x_parm_birth_insn)
+#define frame_offset (crtl->x_frame_offset)
+#define stack_check_probe_note (crtl->x_stack_check_probe_note)
+#define arg_pointer_save_area (crtl->x_arg_pointer_save_area)
+#define used_temp_slots (crtl->x_used_temp_slots)
+#define avail_temp_slots (crtl->x_avail_temp_slots)
+#define temp_slot_level (crtl->x_temp_slot_level)
+#define nonlocal_goto_handler_labels (crtl->x_nonlocal_goto_handler_labels)
+#define frame_pointer_needed (crtl->frame_pointer_needed)
+#define stack_realign_fp (crtl->stack_realign_needed && !crtl->need_drap)
+#define stack_realign_drap (crtl->stack_realign_needed && crtl->need_drap)
+
+extern GTY(()) struct rtl_data x_rtl;
+
+/* Accessor to RTL datastructures. We keep them statically allocated now since
+ we never keep multiple functions. For threaded compiler we might however
+ want to do differently. */
+#define crtl (&x_rtl)
+
+/* This structure can save all the important global and static variables
+ describing the status of the current function. */
+
+struct function GTY(())
+{
+ struct eh_status *eh;
+
+ /* The control flow graph for this function. */
+ struct control_flow_graph *cfg;
+
+ /* GIMPLE body for this function. */
+ struct gimple_seq_d *gimple_body;
+
+ /* SSA and dataflow information. */
+ struct gimple_df *gimple_df;
+
+ /* The loops in this function. */
+ struct loops *x_current_loops;
+
+ /* Value histograms attached to particular statements. */
+ htab_t GTY((skip)) value_histograms;
+
+ /* For function.c. */
+
+ /* Points to the FUNCTION_DECL of this function. */
+ tree decl;
+
+ /* A PARM_DECL that should contain the static chain for this function.
+ It will be initialized at the beginning of the function. */
+ tree static_chain_decl;
+
+ /* An expression that contains the non-local goto save area. The first
+ word is the saved frame pointer and the second is the saved stack
+ pointer. */
+ tree nonlocal_goto_save_area;
+
+ /* List of function local variables, functions, types and constants. */
+ tree local_decls;
+
+ /* For md files. */
+
+ /* tm.h can use this to store whatever it likes. */
+ struct machine_function * GTY ((maybe_undef)) machine;
+
+ /* Language-specific code can use this to store whatever it likes. */
+ struct language_function * language;
+
+ /* Used types hash table. */
+ htab_t GTY ((param_is (union tree_node))) used_types_hash;
+
+ /* Last statement uid. */
+ int last_stmt_uid;
+
+ /* Function sequence number for profiling, debugging, etc. */
+ int funcdef_no;
+
+ /* Line number of the start of the function for debugging purposes. */
+ location_t function_start_locus;
+
+ /* Line number of the end of the function. */
+ location_t function_end_locus;
+
+ /* Properties used by the pass manager. */
+ unsigned int curr_properties;
+ unsigned int last_verified;
+ /* Interprocedural passes scheduled to have their transform functions
+ applied next time we execute local pass on them. We maintain it
+ per-function in order to allow IPA passes to introduce new functions. */
+ VEC(ipa_opt_pass,heap) * GTY((skip)) ipa_transforms_to_apply;
+
+ /* Collected bit flags. */
+
+ /* Number of units of general registers that need saving in stdarg
+ function. What unit is depends on the backend, either it is number
+ of bytes, or it can be number of registers. */
+ unsigned int va_list_gpr_size : 8;
+
+ /* Number of units of floating point registers that need saving in stdarg