+++ /dev/null
-/* Structure for saving state for a nested function.
- Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
- Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#ifndef GCC_FUNCTION_H
-#define GCC_FUNCTION_H
-
-#include "tree.h"
-#include "hashtab.h"
-#include "varray.h"
-
-/* Stack of pending (incomplete) sequences saved by `start_sequence'.
- Each element describes one pending sequence.
- The main insn-chain is saved in the last element of the chain,
- unless the chain is empty. */
-
-struct sequence_stack GTY(())
-{
- /* First and last insns in the chain of the saved sequence. */
- rtx first;
- rtx last;
- struct sequence_stack *next;
-};
-\f
-struct emit_status GTY(())
-{
- /* This is reset to LAST_VIRTUAL_REGISTER + 1 at the start of each function.
- After rtl generation, it is 1 plus the largest register number used. */
- int x_reg_rtx_no;
-
- /* Lowest label number in current function. */
- int x_first_label_num;
-
- /* The ends of the doubly-linked chain of rtl for the current function.
- Both are reset to null at the start of rtl generation for the function.
-
- start_sequence saves both of these on `sequence_stack' and then starts
- a new, nested sequence of insns. */
- rtx x_first_insn;
- rtx x_last_insn;
-
- /* Stack of pending (incomplete) sequences saved by `start_sequence'.
- Each element describes one pending sequence.
- The main insn-chain is saved in the last element of the chain,
- unless the chain is empty. */
- struct sequence_stack *sequence_stack;
-
- /* INSN_UID for next insn emitted.
- Reset to 1 for each function compiled. */
- int x_cur_insn_uid;
-
- /* Location the last line-number NOTE emitted.
- This is used to avoid generating duplicates. */
- location_t x_last_location;
-
- /* The length of the regno_pointer_align, regno_decl, and x_regno_reg_rtx
- vectors. Since these vectors are needed during the expansion phase when
- the total number of registers in the function is not yet known, the
- vectors are copied and made bigger when necessary. */
- int regno_pointer_align_length;
-
- /* Indexed by pseudo register number, if nonzero gives the known alignment
- for that pseudo (if REG_POINTER is set in x_regno_reg_rtx).
- Allocated in parallel with x_regno_reg_rtx. */
- unsigned char * GTY((skip)) regno_pointer_align;
-};
-
-
-/* Indexed by pseudo register number, gives the rtx for that pseudo.
- Allocated in parallel with regno_pointer_align.
- FIXME: We could put it into emit_status struct, but gengtype is not able to deal
- with length attribute nested in top level structures. */
-
-extern GTY ((length ("crtl->emit.x_reg_rtx_no"))) rtx * regno_reg_rtx;
-
-/* For backward compatibility... eventually these should all go away. */
-#define reg_rtx_no (crtl->emit.x_reg_rtx_no)
-#define seq_stack (crtl->emit.sequence_stack)
-
-#define REGNO_POINTER_ALIGN(REGNO) (crtl->emit.regno_pointer_align[REGNO])
-
-struct expr_status GTY(())
-{
- /* Number of units that we should eventually pop off the stack.
- These are the arguments to function calls that have already returned. */
- int x_pending_stack_adjust;
-
- /* Under some ABIs, it is the caller's responsibility to pop arguments
- pushed for function calls. A naive implementation would simply pop
- the arguments immediately after each call. However, if several
- function calls are made in a row, it is typically cheaper to pop
- all the arguments after all of the calls are complete since a
- single pop instruction can be used. Therefore, GCC attempts to
- defer popping the arguments until absolutely necessary. (For
- example, at the end of a conditional, the arguments must be popped,
- since code outside the conditional won't know whether or not the
- arguments need to be popped.)
-
- When INHIBIT_DEFER_POP is nonzero, however, the compiler does not
- attempt to defer pops. Instead, the stack is popped immediately
- after each call. Rather then setting this variable directly, use
- NO_DEFER_POP and OK_DEFER_POP. */
- int x_inhibit_defer_pop;
-
- /* If PREFERRED_STACK_BOUNDARY and PUSH_ROUNDING are defined, the stack
- boundary can be momentarily unaligned while pushing the arguments.
- Record the delta since last aligned boundary here in order to get
- stack alignment in the nested function calls working right. */
- int x_stack_pointer_delta;
-
- /* Nonzero means __builtin_saveregs has already been done in this function.
- The value is the pseudoreg containing the value __builtin_saveregs
- returned. */
- rtx x_saveregs_value;
-
- /* Similarly for __builtin_apply_args. */
- rtx x_apply_args_value;
-
- /* List of labels that must never be deleted. */
- rtx x_forced_labels;
-};
-
-typedef struct call_site_record *call_site_record;
-DEF_VEC_P(call_site_record);
-DEF_VEC_ALLOC_P(call_site_record, gc);
-
-/* RTL representation of exception handling. */
-struct rtl_eh GTY(())
-{
- rtx filter;
- rtx exc_ptr;
-
- int built_landing_pads;
-
- rtx ehr_stackadj;
- rtx ehr_handler;
- rtx ehr_label;
-
- rtx sjlj_fc;
- rtx sjlj_exit_after;
-
- htab_t GTY ((param_is (struct ehl_map_entry))) exception_handler_label_map;
-
- VEC(tree,gc) *ttype_data;
- varray_type ehspec_data;
- varray_type action_record_data;
-
- VEC(call_site_record,gc) *call_site_record;
-};
-
-#define pending_stack_adjust (crtl->expr.x_pending_stack_adjust)
-#define inhibit_defer_pop (crtl->expr.x_inhibit_defer_pop)
-#define saveregs_value (crtl->expr.x_saveregs_value)
-#define apply_args_value (crtl->expr.x_apply_args_value)
-#define forced_labels (crtl->expr.x_forced_labels)
-#define stack_pointer_delta (crtl->expr.x_stack_pointer_delta)
-
-struct gimple_df;
-struct temp_slot;
-typedef struct temp_slot *temp_slot_p;
-struct call_site_record;
-
-DEF_VEC_P(temp_slot_p);
-DEF_VEC_ALLOC_P(temp_slot_p,gc);
-struct ipa_opt_pass;
-typedef struct ipa_opt_pass *ipa_opt_pass;
-
-DEF_VEC_P(ipa_opt_pass);
-DEF_VEC_ALLOC_P(ipa_opt_pass,heap);
-
-enum function_frequency {
- /* This function most likely won't be executed at all.
- (set only when profile feedback is available or via function attribute). */
- FUNCTION_FREQUENCY_UNLIKELY_EXECUTED,
- /* The default value. */
- FUNCTION_FREQUENCY_NORMAL,
- /* Optimize this function hard
- (set only when profile feedback is available or via function attribute). */
- FUNCTION_FREQUENCY_HOT
-};
-
-struct varasm_status GTY(())
-{
- /* If we're using a per-function constant pool, this is it. */
- struct rtx_constant_pool *pool;
-
- /* Number of tree-constants deferred during the expansion of this
- function. */
- unsigned int deferred_constants;
-};
-
-/* Information mainlined about RTL representation of incoming arguments. */
-struct incoming_args GTY(())
-{
- /* Number of bytes of args popped by function being compiled on its return.
- Zero if no bytes are to be popped.
- May affect compilation of return insn or of function epilogue. */
- int pops_args;
-
- /* If function's args have a fixed size, this is that size, in bytes.
- Otherwise, it is -1.
- May affect compilation of return insn or of function epilogue. */
- int size;
-
- /* # bytes the prologue should push and pretend that the caller pushed them.
- The prologue must do this, but only if parms can be passed in
- registers. */
- int pretend_args_size;
-
- /* This is the offset from the arg pointer to the place where the first
- anonymous arg can be found, if there is one. */
- rtx arg_offset_rtx;
-
- /* Quantities of various kinds of registers
- used for the current function's args. */
- CUMULATIVE_ARGS info;
-
- /* The arg pointer hard register, or the pseudo into which it was copied. */
- rtx internal_arg_pointer;
-};
-
-/* Data for function partitioning. */
-struct function_subsections GTY(())
-{
- /* Assembly labels for the hot and cold text sections, to
- be used by debugger functions for determining the size of text
- sections. */
-
- const char *hot_section_label;
- const char *cold_section_label;
- const char *hot_section_end_label;
- const char *cold_section_end_label;
-
- /* String to be used for name of cold text sections, via
- targetm.asm_out.named_section. */
-
- const char *unlikely_text_section_name;
-};
-
-/* Datastructures maintained for currently processed function in RTL form. */
-struct rtl_data GTY(())
-{
- struct expr_status expr;
- struct emit_status emit;
- struct varasm_status varasm;
- struct incoming_args args;
- struct function_subsections subsections;
- struct rtl_eh eh;
-
- /* For function.c */
-
- /* # of bytes of outgoing arguments. If ACCUMULATE_OUTGOING_ARGS is
- defined, the needed space is pushed by the prologue. */
- int outgoing_args_size;
-
- /* If nonzero, an RTL expression for the location at which the current
- function returns its result. If the current function returns its
- result in a register, current_function_return_rtx will always be
- the hard register containing the result. */
- rtx return_rtx;
-
- /* Opaque pointer used by get_hard_reg_initial_val and
- has_hard_reg_initial_val (see integrate.[hc]). */
- struct initial_value_struct *hard_reg_initial_vals;
-
- /* A variable living at the top of the frame that holds a known value.
- Used for detecting stack clobbers. */
- tree stack_protect_guard;
-
- /* List (chain of EXPR_LIST) of labels heading the current handlers for
- nonlocal gotos. */
- rtx x_nonlocal_goto_handler_labels;
-
- /* Label that will go on function epilogue.
- Jumping to this label serves as a "return" instruction
- on machines which require execution of the epilogue on all returns. */
- rtx x_return_label;
-
- /* Label that will go on the end of function epilogue.
- Jumping to this label serves as a "naked return" instruction
- on machines which require execution of the epilogue on all returns. */
- rtx x_naked_return_label;
-
- /* List (chain of EXPR_LISTs) of all stack slots in this function.
- Made for the sake of unshare_all_rtl. */
- rtx x_stack_slot_list;
-
- /* Place after which to insert the tail_recursion_label if we need one. */
- rtx x_stack_check_probe_note;
-
- /* Location at which to save the argument pointer if it will need to be
- referenced. There are two cases where this is done: if nonlocal gotos
- exist, or if vars stored at an offset from the argument pointer will be
- needed by inner routines. */
- rtx x_arg_pointer_save_area;
-
- /* Dynamic Realign Argument Pointer used for realigning stack. */
- rtx drap_reg;
-
- /* Offset to end of allocated area of stack frame.
- If stack grows down, this is the address of the last stack slot allocated.
- If stack grows up, this is the address for the next slot. */
- HOST_WIDE_INT x_frame_offset;
-
- /* Insn after which register parms and SAVE_EXPRs are born, if nonopt. */
- rtx x_parm_birth_insn;
-
- /* List of all used temporaries allocated, by level. */
- VEC(temp_slot_p,gc) *x_used_temp_slots;
-
- /* List of available temp slots. */
- struct temp_slot *x_avail_temp_slots;
-
- /* Current nesting level for temporaries. */
- int x_temp_slot_level;
-
- /* The largest alignment needed on the stack, including requirement
- for outgoing stack alignment. */
- unsigned int stack_alignment_needed;
-
- /* Preferred alignment of the end of stack frame, which is preferred
- to call other functions. */
- unsigned int preferred_stack_boundary;
-
- /* The minimum alignment of parameter stack. */
- unsigned int parm_stack_boundary;
-
- /* The largest alignment of slot allocated on the stack. */
- unsigned int max_used_stack_slot_alignment;
-
- /* The stack alignment estimated before reload, with consideration of
- following factors:
- 1. Alignment of local stack variables (max_used_stack_slot_alignment)
- 2. Alignment requirement to call other functions
- (preferred_stack_boundary)
- 3. Alignment of non-local stack variables but might be spilled in
- local stack. */
- unsigned int stack_alignment_estimated;
-
- /* For reorg. */
-
- /* If some insns can be deferred to the delay slots of the epilogue, the
- delay list for them is recorded here. */
- rtx epilogue_delay_list;
-
- /* Nonzero if function being compiled called builtin_return_addr or
- builtin_frame_address with nonzero count. */
- bool accesses_prior_frames;
-
- /* Nonzero if the function calls __builtin_eh_return. */
- bool calls_eh_return;
-
- /* Nonzero if function saves all registers, e.g. if it has a nonlocal
- label that can reach the exit block via non-exceptional paths. */
- bool saves_all_registers;
-
- /* Nonzero if function being compiled has nonlocal gotos to parent
- function. */
- bool has_nonlocal_goto;
-
- /* Nonzero if function being compiled has an asm statement. */
- bool has_asm_statement;
-
- /* This bit is used by the exception handling logic. It is set if all
- calls (if any) are sibling calls. Such functions do not have to
- have EH tables generated, as they cannot throw. A call to such a
- function, however, should be treated as throwing if any of its callees
- can throw. */
- bool all_throwers_are_sibcalls;
-
- /* Nonzero if stack limit checking should be enabled in the current
- function. */
- bool limit_stack;
-
- /* Nonzero if profiling code should be generated. */
- bool profile;
-
- /* Nonzero if the current function uses the constant pool. */
- bool uses_const_pool;
-
- /* Nonzero if the current function uses pic_offset_table_rtx. */
- bool uses_pic_offset_table;
-
- /* Nonzero if the current function needs an lsda for exception handling. */
- bool uses_eh_lsda;
-
- /* Set when the tail call has been produced. */
- bool tail_call_emit;
-
- /* Nonzero if code to initialize arg_pointer_save_area has been emitted. */
- bool arg_pointer_save_area_init;
-
- /* Nonzero if current function must be given a frame pointer.
- Set in global.c if anything is allocated on the stack there. */
- bool frame_pointer_needed;
-
- /* When set, expand should optimize for speed. */
- bool maybe_hot_insn_p;
-
- /* Nonzero if function stack realignment is needed. This flag may be
- set twice: before and after reload. It is set before reload wrt
- stack alignment estimation before reload. It will be changed after
- reload if by then criteria of stack realignment is different.
- The value set after reload is the accurate one and is finalized. */
- bool stack_realign_needed;
-
- /* 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;
-
- /* Function's module id. */
- unsigned module_id;
-
- /* Function sequence number for profiling, debugging, etc. */
- int funcdef_no;
-
- /* 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;
-
- /* 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
- function. */
- unsigned int va_list_fpr_size : 8;
-
-
- /* How commonly executed the function is. Initialized during branch
- probabilities pass. */
- ENUM_BITFIELD (function_frequency) function_frequency : 2;
-
- /* Nonzero if function being compiled can call setjmp. */
- unsigned int calls_setjmp : 1;
-
- /* Nonzero if function being compiled can call alloca,
- either as a subroutine or builtin. */
- unsigned int calls_alloca : 1;
-
- /* Nonzero if function being compiled receives nonlocal gotos
- from nested functions. */
- unsigned int has_nonlocal_label : 1;
-
- /* Nonzero if current function uses stdarg.h or equivalent. */
- unsigned int stdarg : 1;
-
- /* Nonzero if the back-end should not keep track of expressions that
- determine the size of variable-sized objects. Normally, such
- expressions are saved away, and then expanded when the next
- function is started. For example, if a parameter has a
- variable-sized type, then the size of the parameter is computed
- when the function body is entered. However, some front-ends do
- not desire this behavior. */
- unsigned int dont_save_pending_sizes_p : 1;
-
- unsigned int after_inlining : 1;
- unsigned int always_inline_functions_inlined : 1;
-
- /* Fields below this point are not set for abstract functions; see
- allocate_struct_function. */
-
- /* Nonzero if function being compiled needs to be given an address
- where the value should be stored. */
- unsigned int returns_struct : 1;
-
- /* Nonzero if function being compiled needs to
- return the address of where it has put a structure value. */
- unsigned int returns_pcc_struct : 1;
-
- /* Nonzero if pass_tree_profile was run on this function. */
- unsigned int after_tree_profile : 1;
-
- /* Nonzero if this function has local DECL_HARD_REGISTER variables.
- In this case code motion has to be done more carefully. */
- unsigned int has_local_explicit_reg_vars : 1;
-
- /* Nonzero if the current function is a thunk, i.e., a lightweight
- function implemented by the output_mi_thunk hook) that just
- adjusts one of its arguments and forwards to another
- function. */
- unsigned int is_thunk : 1;
-};
-
-/* The bit width of function id in the global function id used
- in LIPO. */
-#define FUNC_ID_WIDTH HOST_BITS_PER_WIDEST_INT / 2
-/* The mask to extract function id from the global function id. */
-#define FUNC_ID_MASK ((1ll << FUNC_ID_WIDTH) - 1)
-/* Macro to extract module id from global function id GID. */
-#define EXTRACT_MODULE_ID_FROM_GLOBAL_ID(gid) (unsigned)(((gid) >>\
- FUNC_ID_WIDTH) & FUNC_ID_MASK)
-/* Macro to extract function id from global function id GID. */
-#define EXTRACT_FUNC_ID_FROM_GLOBAL_ID(gid) (unsigned)((gid) & FUNC_ID_MASK)
-/* Macro to generate a global function id from module id M and
- function id F. */
-#define GEN_FUNC_GLOBAL_ID(m,f) ((((HOST_WIDEST_INT) (m)) << FUNC_ID_WIDTH)\
- | (f))
-/* Access macro for module_id field of function FUNC. */
-#define FUNC_DECL_MODULE_ID(func) ((func)->module_id)
-/* Access macro for funcdef_no field of function FUNC. */
-#define FUNC_DECL_FUNC_ID(func) ((func)->funcdef_no + 1)
-/* Macro to compute global function id for FUNC. */
-#define FUNC_DECL_GLOBAL_ID(func) \
- GEN_FUNC_GLOBAL_ID (FUNC_DECL_MODULE_ID (func), FUNC_DECL_FUNC_ID (func))
-/* 32 bit wide unique id used for asm label (limit: 30k modules,
- 128k funcs per module. */
-#define FUNC_LABEL_ID(func) ((FUNC_DECL_MODULE_ID (func) << 17) +\
- (func)->funcdef_no)
-
-/* If va_list_[gf]pr_size is set to this, it means we don't know how
- many units need to be saved. */
-#define VA_LIST_MAX_GPR_SIZE 255
-#define VA_LIST_MAX_FPR_SIZE 255
-
-/* The function currently being compiled. */
-extern GTY(()) struct function *cfun;
-
-/* In order to ensure that cfun is not set directly, we redefine it so
- that it is not an lvalue. Rather than assign to cfun, use
- push_cfun or set_cfun. */
-#define cfun (cfun + 0)
-
-/* Nonzero if we've already converted virtual regs to hard regs. */
-extern int virtuals_instantiated;
-
-/* Nonzero if at least one trampoline has been created. */
-extern int trampolines_created;
-
-struct types_used_by_vars_entry GTY(()) {
- tree type;
- tree var_decl;
-};
-
-/* Hash table making the relationship between a global variable
- and the types it references in its initializer. The key of the
- entry is a referenced type, and the value is the DECL of the global
- variable. types_use_by_vars_do_hash and types_used_by_vars_eq below are
- the hash and equality functions to use for this hash table. */
-extern GTY((param_is (struct types_used_by_vars_entry))) htab_t
- types_used_by_vars_hash;
-
-hashval_t types_used_by_vars_do_hash (const void*);
-int types_used_by_vars_eq (const void *, const void *);
-void types_used_by_var_decl_insert (tree type, tree var_decl);
-
-/* During parsing of a global variable, this linked list points to
- the list of types referenced by the global variable. */
-extern GTY(()) tree types_used_by_cur_var_decl;
-
-
-/* cfun shouldn't be set directly; use one of these functions instead. */
-extern void set_cfun (struct function *new_cfun);
-extern void push_cfun (struct function *new_cfun);
-extern void pop_cfun (void);
-extern void instantiate_decl_rtl (rtx x);
-
-/* For backward compatibility... eventually these should all go away. */
-#define current_function_funcdef_no (cfun->funcdef_no)
-
-#define current_loops (cfun->x_current_loops)
-#define dom_computed (cfun->cfg->x_dom_computed)
-#define n_bbs_in_dom_tree (cfun->cfg->x_n_bbs_in_dom_tree)
-#define VALUE_HISTOGRAMS(fun) (fun)->value_histograms
-
-/* Identify BLOCKs referenced by more than one NOTE_INSN_BLOCK_{BEG,END},
- and create duplicate blocks. */
-extern void reorder_blocks (void);
-
-/* Set BLOCK_NUMBER for all the blocks in FN. */
-extern void number_blocks (tree);
-
-extern void clear_block_marks (tree);
-extern tree blocks_nreverse (tree);
-
-/* Return size needed for stack frame based on slots so far allocated.
- This size counts from zero. It is not rounded to STACK_BOUNDARY;
- the caller may have to do that. */
-extern HOST_WIDE_INT get_frame_size (void);
-
-/* Issue an error message and return TRUE if frame OFFSET overflows in
- the signed target pointer arithmetics for function FUNC. Otherwise
- return FALSE. */
-extern bool frame_offset_overflow (HOST_WIDE_INT, tree);
-
-/* A pointer to a function to create target specific, per-function
- data structures. */
-extern struct machine_function * (*init_machine_status) (void);
-
-/* Save and restore status information for a nested function. */
-extern void free_after_parsing (struct function *);
-extern void free_after_compilation (struct function *);
-
-extern void init_varasm_status (void);
-
-#ifdef RTX_CODE
-extern void diddle_return_value (void (*)(rtx, void*), void*);
-extern void clobber_return_register (void);
-#endif
-
-extern rtx get_arg_pointer_save_area (void);
-
-/* Returns the name of the current function. */
-extern const char *current_function_name (void);
-/* Returns the assembler name (raw, mangled) of the current function. */
-extern const char *current_function_assembler_name (void);
-
-extern void do_warn_unused_parameter (tree);
-
-extern bool pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode,
- tree, bool);
-extern bool reference_callee_copied (CUMULATIVE_ARGS *, enum machine_mode,
- tree, bool);
-
-extern void used_types_insert (tree);
-
-extern int get_next_funcdef_no (void);
-extern int get_current_funcdef_no (void);
-
-extern void reset_funcdef_no (void);
-extern void set_funcdef_no (int);
-#endif /* GCC_FUNCTION_H */
OSDN Git Service
