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Diffstat (limited to 'lib/gcc/arm-eabi/4.6.x-google/plugin/include/function.h')
| -rw-r--r-- | lib/gcc/arm-eabi/4.6.x-google/plugin/include/function.h | 804 |
1 files changed, 0 insertions, 804 deletions
diff --git a/lib/gcc/arm-eabi/4.6.x-google/plugin/include/function.h b/lib/gcc/arm-eabi/4.6.x-google/plugin/include/function.h deleted file mode 100644 index 7563ba1..0000000 --- a/lib/gcc/arm-eabi/4.6.x-google/plugin/include/function.h +++ /dev/null @@ -1,804 +0,0 @@ -/* 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, 2010 - 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 "vecprim.h" -#include "tm.h" /* For CUMULATIVE_ARGS. */ -#include "hard-reg-set.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 GTY(()) sequence_stack { - /* First and last insns in the chain of the saved sequence. */ - rtx first; - rtx last; - struct sequence_stack *next; -}; - -struct GTY(()) emit_status { - /* 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; - - /* INSN_UID for next debug insn emitted. Only used if - --param min-nondebug-insn-uid=<value> is given with nonzero value. */ - int x_cur_debug_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 GTY(()) expr_status { - /* 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_d *call_site_record; -DEF_VEC_P(call_site_record); -DEF_VEC_ALLOC_P(call_site_record, gc); - -/* RTL representation of exception handling. */ -struct GTY(()) rtl_eh { - rtx ehr_stackadj; - rtx ehr_handler; - rtx ehr_label; - - rtx sjlj_fc; - rtx sjlj_exit_after; - - VEC(uchar,gc) *action_record_data; - - VEC(call_site_record,gc) *call_site_record[2]; -}; - -#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_d; - -DEF_VEC_P(temp_slot_p); -DEF_VEC_ALLOC_P(temp_slot_p,gc); -struct ipa_opt_pass_d; -typedef struct ipa_opt_pass_d *ipa_opt_pass; - -DEF_VEC_P(ipa_opt_pass); -DEF_VEC_ALLOC_P(ipa_opt_pass,heap); - -struct GTY(()) varasm_status { - /* 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 GTY(()) incoming_args { - /* 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 GTY(()) function_subsections { - /* 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; -}; - -/* Describe an empty area of space in the stack frame. These can be chained - into a list; this is used to keep track of space wasted for alignment - reasons. */ -struct GTY(()) frame_space -{ - struct frame_space *next; - - HOST_WIDE_INT start; - HOST_WIDE_INT length; -}; - -/* Datastructures maintained for currently processed function in RTL form. */ -struct GTY(()) rtl_data { - 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; - - /* List of empty areas in the stack frame. */ - struct frame_space *frame_space_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; - - /* True if current function can not throw. Unlike - TREE_NOTHROW (current_function_decl) it is set even for overwritable - function where currently compiled version of it is nothrow. */ - bool nothrow; - - /* Like regs_ever_live, but 1 if a reg is set or clobbered from an - asm. Unlike regs_ever_live, elements of this array corresponding - to eliminable regs (like the frame pointer) are set if an asm - sets them. */ - HARD_REG_SET asm_clobbers; -}; - -#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) - -struct GTY(()) stack_usage -{ - /* # of bytes of static stack space allocated by the function. */ - HOST_WIDE_INT static_stack_size; - - /* # of bytes of dynamic stack space allocated by the function. This is - meaningful only if has_unbounded_dynamic_stack_size is zero. */ - HOST_WIDE_INT dynamic_stack_size; - - /* # of bytes of space pushed onto the stack after the prologue. If - !ACCUMULATE_OUTGOING_ARGS, it contains the outgoing arguments. */ - int pushed_stack_size; - - /* # of dynamic allocations in the function. */ - unsigned int dynamic_alloc_count : 31; - - /* Nonzero if the amount of stack space allocated dynamically cannot - be bounded at compile-time. */ - unsigned int has_unbounded_dynamic_stack_size : 1; -}; - -#define current_function_static_stack_size (cfun->su->static_stack_size) -#define current_function_dynamic_stack_size (cfun->su->dynamic_stack_size) -#define current_function_pushed_stack_size (cfun->su->pushed_stack_size) -#define current_function_dynamic_alloc_count (cfun->su->dynamic_alloc_count) -#define current_function_has_unbounded_dynamic_stack_size \ - (cfun->su->has_unbounded_dynamic_stack_size) -#define current_function_allocates_dynamic_stack_space \ - (current_function_dynamic_stack_size != 0 \ - || current_function_has_unbounded_dynamic_stack_size) - -/* This structure can save all the important global and static variables - describing the status of the current function. */ - -struct GTY(()) function { - 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; - - /* The stack usage of this function. */ - struct stack_usage *su; - - /* 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; - - /* Vector of function local variables, functions, types and constants. */ - VEC(tree,gc) *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's module id. */ - unsigned module_id; - - /* 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; - - /* Non-null if the function does something that would prevent it from - being copied; this applies to both versioning and inlining. Set to - a string describing the reason for failure. */ - const char * GTY((skip)) cannot_be_copied_reason; - - /* 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; - - /* 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 we've set cannot_be_copied_reason. I.e. if - (cannot_be_copied_set && !cannot_be_copied_reason), the function - can in fact be copied. */ - unsigned int cannot_be_copied_set : 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; - - /* Nonzero if function being compiled can throw synchronous non-call - exceptions. */ - unsigned int can_throw_non_call_exceptions : 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; -}; - -#if 0 -#define EXTRACT_MODULE_ID_FROM_GLOBAL_ID(gid) (unsigned)(((gid) >> FUNC_ID_WIDTH) & FUNC_ID_MASK) -#define EXTRACT_FUNC_ID_FROM_GLOBAL_ID(gid) (unsigned)((gid) & FUNC_ID_MASK) -#define FUNC_DECL_MODULE_ID(func) EXTRACT_MODULE_ID_FROM_GLOBAL_ID ((func)->funcdef_no + 1) -#define FUNC_DECL_FUNC_ID(func) EXTRACT_FUNC_ID_FROM_GLOBAL_ID ((func)->funcdef_no + 1) -#define FUNC_DECL_GLOBAL_ID(func) ((func)->funcdef_no + 1) -#define GEN_FUNC_GLOBAL_ID(m,f) ((((HOST_WIDE_INT) (m)) << FUNC_ID_WIDTH) | (f)) -#endif - -/* 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) << 18) +\ - (func)->funcdef_no) - -/* Add the decl D to the local_decls list of FUN. */ - -static inline void -add_local_decl (struct function *fun, tree d) -{ - VEC_safe_push (tree, gc, fun->local_decls, d); -} - -#define FOR_EACH_LOCAL_DECL(FUN, I, D) \ - FOR_EACH_VEC_ELT_REVERSE (tree, (FUN)->local_decls, I, D) - -/* 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 GTY(()) types_used_by_vars_entry { - 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 vector contains the types - referenced by the global variable. */ -extern GTY(()) VEC(tree,gc) *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); - -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_last_funcdef_no (void); - -extern void reset_funcdef_no (void); -extern void set_funcdef_no (int); - -/* In predict.c */ -extern bool optimize_function_for_size_p (struct function *); -extern bool optimize_function_for_speed_p (struct function *); - -#endif /* GCC_FUNCTION_H */ |