Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 2, or (at your option)
-any later version.
+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 2, or (at your option) any later
+version.
-GNU CC 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.
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-
-#if !defined(NULL_TREE) && !defined(tree)
-typedef union union_node *_function_tree;
-#define tree _function_tree
-#endif
-#if !defined(NULL_RTX) && !defined(rtx)
-typedef struct rtx_def *_function_rtx;
-#define rtx _function_rtx
-#endif
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
struct var_refs_queue
{
int x_last_linenum;
const char *x_last_filename;
- /* The length of the regno_pointer_align 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. */
+ /* 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
Allocated in parallel with x_regno_reg_rtx. */
unsigned char *regno_pointer_align;
+ /* Indexed by pseudo register number, if nonzero gives the decl
+ corresponding to that register. */
+ tree *regno_decl;
+
/* Indexed by pseudo register number, gives the rtx for that pseudo.
Allocated in parallel with regno_pointer_align. */
rtx *x_regno_reg_rtx;
#define seq_stack (cfun->emit->sequence_stack)
#define REGNO_POINTER_ALIGN(REGNO) (cfun->emit->regno_pointer_align[REGNO])
+#define REGNO_DECL(REGNO) (cfun->emit->regno_decl[REGNO])
struct expr_status
{
int x_inhibit_defer_pop;
/* If PREFERRED_STACK_BOUNDARY and PUSH_ROUNDING are defined, the stack
- boundary can be momentairly unaligned while pushing the arguments.
+ 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;
struct function
{
- struct function *next_global;
- struct function *next;
-
struct eh_status *eh;
struct stmt_status *stmt;
struct expr_status *expr;
/* Name of this function. */
const char *name;
- /* Points to the FUNCTION_DECL of this function. */
+ /* Points to the FUNCTION_DECL of this function. */
tree decl;
+ /* Function containing this function, if any. */
+ struct function *outer;
+
/* 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. */
inline. */
const char *cannot_inline;
+ /* 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;
+
/* Number of function calls seen so far in current function. */
int x_function_call_count;
rtx x_last_parm_insn;
/* 1 + last pseudo register number possibly used for loading a copy
- of a parameter of this function. */
+ of a parameter of this function. */
unsigned int x_max_parm_reg;
/* Vector indexed by REGNO, containing location on stack in which
/* Highest label number in current function. */
int inl_max_label_num;
+ /* Profile label number. */
+ int profile_label_no;
+
/* For md files. */
/* tm.h can use this to store whatever it likes. */
either as a subroutine or builtin. */
unsigned int calls_alloca : 1;
+ /* Nonzero if the function calls __builtin_eh_return. */
+ unsigned int calls_eh_return : 1;
+
/* Nonzero if function being compiled receives nonlocal gotos
from nested functions. */
unsigned int has_nonlocal_label : 1;
generated. */
unsigned int instrument_entry_exit : 1;
- /* Nonzero if memory access checking be enabled in the current function. */
- unsigned int check_memory_usage : 1;
+ /* Nonzero if profiling code should be generated. */
+ unsigned int profile : 1;
/* Nonzero if stack limit checking should be enabled in the current
function. */
/* Nonzero if the current function needs an lsda for exception handling. */
unsigned int uses_eh_lsda : 1;
+
+ /* Nonzero if code to initialize arg_pointer_save_area has been emited. */
+ unsigned int arg_pointer_save_area_init : 1;
};
/* The function currently being compiled. */
extern struct function *cfun;
-/* A list of all functions we have compiled so far. */
-extern struct function *all_functions;
+/* Nonzero if we've already converted virtual regs to hard regs. */
+extern int virtuals_instantiated;
/* For backward compatibility... eventually these should all go away. */
#define current_function_name (cfun->name)
#define current_function_calls_setjmp (cfun->calls_setjmp)
#define current_function_calls_alloca (cfun->calls_alloca)
#define current_function_calls_longjmp (cfun->calls_longjmp)
+#define current_function_calls_eh_return (cfun->calls_eh_return)
#define current_function_has_computed_jump (cfun->has_computed_jump)
#define current_function_contains_functions (cfun->contains_functions)
#define current_function_is_thunk (cfun->is_thunk)
#define current_function_internal_arg_pointer (cfun->internal_arg_pointer)
#define current_function_return_rtx (cfun->return_rtx)
#define current_function_instrument_entry_exit (cfun->instrument_entry_exit)
-#define current_function_check_memory_usage (cfun->check_memory_usage)
+#define current_function_profile (cfun->profile)
+#define current_function_profile_label_no (cfun->profile_label_no)
#define current_function_limit_stack (cfun->limit_stack)
#define current_function_uses_pic_offset_table (cfun->uses_pic_offset_table)
#define current_function_uses_const_pool (cfun->uses_const_pool)
return the `struct function' for it. */
struct function *find_function_data PARAMS ((tree));
-/* Pointer to chain of `struct function' for containing functions. */
-extern struct function *outer_function_chain;
-
/* Set NOTE_BLOCK for each block note in the current function. */
extern void identify_blocks PARAMS ((void));
that will need garbage collection. */
extern void (*mark_machine_status) PARAMS ((struct function *));
-/* Likewise, but for language-specific data. */
-extern void (*init_lang_status) PARAMS ((struct function *));
-extern void (*mark_lang_status) PARAMS ((struct function *));
-extern void (*save_lang_status) PARAMS ((struct function *));
-extern void (*restore_lang_status) PARAMS ((struct function *));
-extern void (*free_lang_status) PARAMS ((struct function *));
-
/* Save and restore status information for a nested function. */
extern void restore_emit_status PARAMS ((struct function *));
extern void free_after_parsing PARAMS ((struct function *));
extern void use_return_register PARAMS ((void));
#endif
+extern rtx get_arg_pointer_save_area PARAMS ((struct function *));
+
extern void init_virtual_regs PARAMS ((struct emit_status *));
/* Called once, at initialization, to initialize function.c. */
extern void init_function_once PARAMS ((void));
-
-#ifdef rtx
-#undef rtx
-#endif
-
-#ifdef tree
-#undef tree
-#endif
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