diff gcc/explow.h @ 16:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/explow.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,137 @@
+/* Export function prototypes from explow.c.
+   Copyright (C) 2015-2017 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_EXPLOW_H
+#define GCC_EXPLOW_H
+
+/* Return a memory reference like MEMREF, but which is known to have a
+   valid address.  */
+extern rtx validize_mem (rtx);
+
+extern rtx use_anchored_address (rtx);
+
+/* Copy given rtx to a new temp reg and return that.  */
+extern rtx copy_to_reg (rtx);
+
+/* Like copy_to_reg but always make the reg Pmode.  */
+extern rtx copy_addr_to_reg (rtx);
+
+/* Like copy_to_reg but always make the reg the specified mode MODE.  */
+extern rtx copy_to_mode_reg (machine_mode, rtx);
+
+/* Copy given rtx to given temp reg and return that.  */
+extern rtx copy_to_suggested_reg (rtx, rtx, machine_mode);
+
+/* Copy a value to a register if it isn't already a register.
+   Args are mode (in case value is a constant) and the value.  */
+extern rtx force_reg (machine_mode, rtx);
+
+/* Return given rtx, copied into a new temp reg if it was in memory.  */
+extern rtx force_not_mem (rtx);
+
+/* Return mode and signedness to use when an argument or result in the
+   given mode is promoted.  */
+extern machine_mode promote_function_mode (const_tree, machine_mode, int *,
+					        const_tree, int);
+
+/* Return mode and signedness to use when an object in the given mode
+   is promoted.  */
+extern machine_mode promote_mode (const_tree, machine_mode, int *);
+
+/* Return mode and signedness to use when object is promoted.  */
+machine_mode promote_decl_mode (const_tree, int *);
+
+/* Return mode and signedness to use when object is promoted.  */
+machine_mode promote_ssa_mode (const_tree, int *);
+
+/* Remove some bytes from the stack.  An rtx says how many.  */
+extern void adjust_stack (rtx);
+
+/* Add some bytes to the stack.  An rtx says how many.  */
+extern void anti_adjust_stack (rtx);
+
+/* Add some bytes to the stack while probing it.  An rtx says how many. */
+extern void anti_adjust_stack_and_probe (rtx, bool);
+
+/* Support for building allocation/probing loops for stack-clash
+   protection of dyamically allocated stack space.  */
+extern void compute_stack_clash_protection_loop_data (rtx *, rtx *, rtx *,
+						      HOST_WIDE_INT *, rtx);
+extern void emit_stack_clash_protection_probe_loop_start (rtx *, rtx *,
+							  rtx, bool);
+extern void emit_stack_clash_protection_probe_loop_end (rtx, rtx,
+							rtx, bool);
+
+/* This enum is used for the following two functions.  */
+enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
+
+/* Save the stack pointer at the specified level.  */
+extern void emit_stack_save (enum save_level, rtx *);
+
+/* Restore the stack pointer from a save area of the specified level.  */
+extern void emit_stack_restore (enum save_level, rtx);
+
+/* Invoke emit_stack_save for the nonlocal_goto_save_area.  */
+extern void update_nonlocal_goto_save_area (void);
+
+/* Record a new stack level.  */
+extern void record_new_stack_level (void);
+
+/* Allocate some space on the stack dynamically and return its address.  */
+extern rtx allocate_dynamic_stack_space (rtx, unsigned, unsigned,
+					 HOST_WIDE_INT, bool);
+
+/* Calculate the necessary size of a constant dynamic stack allocation from the
+   size of the variable area.  */
+extern void get_dynamic_stack_size (rtx *, unsigned, unsigned, HOST_WIDE_INT *);
+
+/* Returns the address of the dynamic stack space without allocating it.  */
+extern rtx get_dynamic_stack_base (HOST_WIDE_INT offset,
+				   unsigned required_align);
+
+/* Emit one stack probe at ADDRESS, an address within the stack.  */
+extern void emit_stack_probe (rtx);
+
+/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.
+   FIRST is a constant and size is a Pmode RTX.  These are offsets from
+   the current stack pointer.  STACK_GROWS_DOWNWARD says whether to add
+   or subtract them from the stack pointer.  */
+extern void probe_stack_range (HOST_WIDE_INT, rtx);
+
+/* Return an rtx that refers to the value returned by a library call
+   in its original home.  This becomes invalid if any more code is emitted.  */
+extern rtx hard_libcall_value (machine_mode, rtx);
+
+/* Return an rtx that refers to the value returned by a function
+   in its original home.  This becomes invalid if any more code is emitted.  */
+extern rtx hard_function_value (const_tree, const_tree, const_tree, int);
+
+/* Convert arg to a valid memory address for specified machine mode that points
+   to a specific named address space, by emitting insns to perform arithmetic
+   if necessary.  */
+extern rtx memory_address_addr_space (machine_mode, rtx, addr_space_t);
+
+extern rtx eliminate_constant_term (rtx, rtx *);
+
+/* Like memory_address_addr_space, except assume the memory address points to
+   the generic named address space.  */
+#define memory_address(MODE,RTX) \
+	memory_address_addr_space ((MODE), (RTX), ADDR_SPACE_GENERIC)
+
+#endif /* GCC_EXPLOW_H */