4f5888905c
* alias.c (mems_in_disjoint_alias_sets_p, fixed_scalar_and_varying_struct_p, aliases_everything_p, nonoverlapping_component_refs_p, nonoverlapping_memrefs_p, write_dependence_p, mems_in_disjoint_alias_sets_p, read_dependence, true_dependence, canon_true_dependence, anti_dependence, output_dependence): Constify. * combine.c (extended_count): Likewise. * cse.c (cse_rtx_varies_p, hash_rtx, exp_equiv_p): Likewise. * cselib.c (get_value_hash, references_value_p, cselib_reg_set_mode, cselib_rtx_varies_p): Likewise. * cselib.h (cselib_reg_set_mode, references_value_p): Likewise. * emit-rtl.c (mem_expr_equal_p, active_insn_p): Likewise. * function.c (contains, prologue_epilogue_contains, sibcall_epilogue_contains): Likewise. * jump.c (simplejump_p, condjump_p, condjump_in_parallel_p, pc_set, any_uncondjump_p, any_condjump_p, onlyjump_p, only_sets_cc0_p, sets_cc0_p, rtx_renumbered_equal_p, true_regnum, reg_or_subregno): Likewise. * recog.c (asm_noperands): Likewise. * reload1.c (function_invariant_p): Likewise. * rtl.h (mem_expr_equal_p, active_insn_p, rtx_varies_p, rtx_addr_varies_p, asm_noperands, exp_equiv_p, hash_rtx, condjump_p, any_condjump_p, any_uncondjump_p, pc_set, simplejump_p, onlyjump_p, only_sets_cc0_p, sets_cc0_p, true_regnum, reg_or_subregno, condjump_in_parallel_p, extended_count, prologue_epilogue_contains, sibcall_epilogue_contains, function_invariant_p, true_dependence, canon_true_dependence, read_dependence, anti_dependence, output_dependence): Likewise. * rtlanal.c (rtx_varies_p, rtx_addr_varies_p): Likewise. java: * jcf-io.c (find_class): Fix -Wcast-qual warnings. From-SVN: r127063
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* Common subexpression elimination for GNU compiler.
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Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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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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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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version.
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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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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* Describe a value. */
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typedef struct cselib_val_struct GTY(())
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{
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/* The hash value. */
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unsigned int value;
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/* A VALUE rtx that points back to this structure. */
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rtx val_rtx;
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/* All rtl expressions that hold this value at the current time during a
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scan. */
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struct elt_loc_list *locs;
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/* If this value is used as an address, points to a list of values that
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use it as an address in a MEM. */
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struct elt_list *addr_list;
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struct cselib_val_struct *next_containing_mem;
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} cselib_val;
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/* A list of rtl expressions that hold the same value. */
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struct elt_loc_list GTY(())
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{
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/* Next element in the list. */
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struct elt_loc_list *next;
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/* An rtl expression that holds the value. */
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rtx loc;
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/* The insn that made the equivalence. */
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rtx setting_insn;
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/* True when setting insn is inside libcall. */
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bool in_libcall;
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};
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/* A list of cselib_val structures. */
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struct elt_list GTY(())
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{
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struct elt_list *next;
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cselib_val *elt;
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};
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extern void (*cselib_discard_hook) (cselib_val *);
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extern cselib_val *cselib_lookup (rtx, enum machine_mode, int);
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extern void cselib_init (bool record_memory);
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extern void cselib_clear_table (void);
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extern void cselib_finish (void);
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extern void cselib_process_insn (rtx);
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extern enum machine_mode cselib_reg_set_mode (const_rtx);
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extern int rtx_equal_for_cselib_p (rtx, rtx);
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extern int references_value_p (const_rtx, int);
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extern rtx cselib_expand_value_rtx (rtx, bitmap, int);
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extern rtx cselib_subst_to_values (rtx);
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extern void cselib_invalidate_rtx (rtx);
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