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
+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
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+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"
-struct var_refs_queue GTY(())
-{
- rtx modified;
- enum machine_mode promoted_mode;
- int unsignedp;
- struct var_refs_queue *next;
-};
-
/* 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,
rtx last;
struct sequence_stack *next;
};
-
-/* Stack of single obstacks. */
-
-struct simple_obstack_stack
-{
- struct obstack *obstack;
- struct simple_obstack_stack *next;
-};
\f
struct emit_status GTY(())
{
/* List of available temp slots. */
struct temp_slot *x_avail_temp_slots;
- /* This slot is initialized as 0 and is added to
- during the nested function. */
- struct var_refs_queue *fixup_var_refs_queue;
-
/* Current nesting level for temporaries. */
int x_temp_slot_level;
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;
return the address of where it has put a structure value. */
unsigned int returns_pcc_struct : 1;
- /* Nonzero if the current function returns a pointer type. */
- unsigned int returns_pointer : 1;
-
/* Nonzero if function being compiled can call setjmp. */
unsigned int calls_setjmp : 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;
- /* Nonzero if function calls builtin_unwind_init. */
- unsigned int calls_unwind_init : 1;
-
+ /* Nonzero if function saves all registers, e.g. if it has a nonlocal
+ label that can reach the exit block via non-exceptional paths. */
+ unsigned int saves_all_registers : 1;
+
/* Nonzero if function being compiled has nonlocal gotos to parent
function. */
unsigned int has_nonlocal_goto : 1;
+
+ /* Nonzero if function being compiled has an asm statement. */
+ unsigned int has_asm_statement : 1;
/* Nonzero if the current function is a thunk, i.e., a lightweight
function implemented by the output_mi_thunk hook) that just
function. */
unsigned int limit_stack : 1;
+
/* Nonzero if current function uses stdarg.h or equivalent. */
unsigned int stdarg : 1;
/* Set when the call to function itself has been emit. */
unsigned int recursive_call_emit : 1;
+
/* Set when the tail call has been produced. */
unsigned int tail_call_emit : 1;
/* FIXME tuples: This bit is temporarily here to mark when a
function has been gimplified, so we can make sure we're not
creating non GIMPLE tuples after gimplification. */
- unsigned gimplified : 1;
+ unsigned int gimplified : 1;
};
/* If va_list_[gf]pr_size is set to this, it means we don't know how
/* Nonzero if at least one trampoline has been created. */
extern int trampolines_created;
+/* 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);
+
/* For backward compatibility... eventually these should all go away. */
#define current_function_pops_args (cfun->pops_args)
#define current_function_returns_struct (cfun->returns_struct)
#define current_function_returns_pcc_struct (cfun->returns_pcc_struct)
-#define current_function_returns_pointer (cfun->returns_pointer)
#define current_function_calls_setjmp (cfun->calls_setjmp)
#define current_function_calls_alloca (cfun->calls_alloca)
#define current_function_accesses_prior_frames (cfun->accesses_prior_frames)
#define current_function_uses_const_pool (cfun->uses_const_pool)
#define current_function_epilogue_delay_list (cfun->epilogue_delay_list)
#define current_function_has_nonlocal_label (cfun->has_nonlocal_label)
-#define current_function_calls_unwind_init (cfun->calls_unwind_init)
+#define current_function_saves_all_registers (cfun->saves_all_registers)
#define current_function_has_nonlocal_goto (cfun->has_nonlocal_goto)
+#define current_function_has_asm_statement (cfun->has_asm_statement)
#define return_label (cfun->x_return_label)
#define naked_return_label (cfun->x_naked_return_label)
#define nonlocal_goto_handler_labels (cfun->x_nonlocal_goto_handler_labels)
#define rtl_df (cfun->df)
#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
/* Given a function decl for a containing function,
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