-/* Function integration definitions for GNU C-Compiler
- Copyright (C) 1990 Free Software Foundation, Inc.
+/* Function integration definitions for GCC
+ Copyright (C) 1990, 1995, 1998, 1999, 2000, 2001, 2003, 2004, 2005
+ 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+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. */
+
+#include "varray.h"
+
+extern rtx get_hard_reg_initial_val (enum machine_mode, unsigned int);
+extern rtx has_hard_reg_initial_val (enum machine_mode, unsigned int);
+/* If a pseudo represents an initial hard reg (or expression), return
+ it, else return NULL_RTX. */
+extern rtx get_hard_reg_initial_reg (struct function *, rtx);
+/* Called from rest_of_compilation. */
+extern void emit_initial_value_sets (void);
+extern void allocate_initial_values (rtx *);
+
+/* Copy a declaration when one function is substituted inline into
+ another. */
+extern tree copy_decl_for_inlining (tree, tree, tree);
+
+/* Check whether there's any attribute in a function declaration that
+ makes the function uninlinable. Returns false if it finds any,
+ true otherwise. */
+extern bool function_attribute_inlinable_p (tree);
-/* This structure is used to remap objects in the function being inlined to
- those belonging to the calling function. It is passed by
- expand_inline_function to its children.
-
- This structure is also used when unrolling loops and otherwise
- replicating code, although not all fields are needed in this case;
- only those fields needed by copy_rtx_and_substitute() and its children
- are used.
-
- This structure is used instead of static variables because
- expand_inline_function may be called recursively via expand_expr. */
-
-struct inline_remap
-{
- /* Definition of function be inlined. */
- union tree_node *fndecl;
- /* Place to put insns needed at start of function. */
- rtx insns_at_start;
- /* Mapping from old registers to new registers.
- It is allocated and deallocated in `expand_inline_function' */
- rtx *reg_map;
- /* Mapping from old code-labels to new code-labels.
- The first element of this map is label_map[min_labelno]. */
- rtx *label_map;
- /* Mapping from old insn uid's to copied insns. The first element
- of this map is insn_map[min_insnno]; the last element is
- insn_map[max_insnno]. We keep the bounds here for when the map
- only covers a partial range of insns (such as loop unrolling or
- code replication). */
- rtx *insn_map;
- int min_insnno, max_insnno;
-
- /* Map pseudo reg number in calling function to equivalent constant. We
- cannot in general substitute constants into parameter pseudo registers,
- since some machine descriptions (many RISCs) won't always handle
- the resulting insns. So if an incoming parameter has a constant
- equivalent, we record it here, and if the resulting insn is
- recognizable, we go with it.
-
- We also use this mechanism to convert references to incoming arguments
- and stacked variables. copy_rtx_and_substitute will replace the virtual
- incoming argument and virtual stacked variables registers with new
- pseudos that contain pointers into the replacement area allocated for
- this inline instance. These pseudos are then marked as being equivalent
- to the appropriate address and substituted if valid. */
- rtx *const_equiv_map;
- /* This is incremented for each new basic block.
- It is used to store in const_age_map to record the domain of validity
- of each entry in const_equiv_map.
- A value of -1 indicates an entry for a reg which is a parm.
- All other values are "positive". */
-#define CONST_AGE_PARM (-1)
- unsigned int const_age;
- /* In parallel with const_equiv_map, record the valid age for each entry.
- The entry is invalid if its age is less than const_age. */
- unsigned int *const_age_map;
- /* Target of the inline function being expanded, or NULL if none. */
- rtx inline_target;
- /* When an insn is being copied by copy_rtx_and_substitute,
- this is nonzero if we have copied an ASM_OPERANDS.
- In that case, it is the original input-operand vector. */
- rtvec orig_asm_operands_vector;
- /* When an insn is being copied by copy_rtx_and_substitute,
- this is nonzero if we have copied an ASM_OPERANDS.
- In that case, it is the copied input-operand vector. */
- rtvec copy_asm_operands_vector;
- /* Likewise, this is the copied constraints vector. */
- rtvec copy_asm_constraints_vector;
-
- /* The next few fields are used for subst_constants to record the SETs
- that it saw. */
- int num_sets;
- struct equiv_table
- {
- rtx dest;
- rtx equiv;
- } equiv_sets[MAX_RECOG_OPERANDS];
- /* Record the last thing assigned to pc. This is used for folded
- conditional branch insns. */
- rtx last_pc_value;
-#ifdef HAVE_cc0
- /* Record the last thing assigned to cc0. */
- rtx last_cc0_value;
-#endif
-};
-
-/* Return a copy of an rtx (as needed), substituting pseudo-register,
- labels, and frame-pointer offsets as necessary. */
-extern rtx copy_rtx_and_substitute ();
-
-extern void try_constants ();
-
-extern void mark_stores ();
-
-/* We do some simple constant folding optimization. This optimization
- really exists primarily to save time inlining a function. It
- also helps users who ask for inline functions without -O. */
-extern rtx try_fold_condition ();
-
-extern rtx *global_const_equiv_map;
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