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