/* Definitions of target machine for GNU compiler, for IBM S/390.
- Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009
+ Free Software Foundation, Inc.
+
Contributed by Hartmut Penner (hpenner@de.ibm.com)
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 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+
+
+/* Prototypes of functions used for constraint evaluation in
+ constraints.c. */
+
+extern int s390_mem_constraint (const char *str, rtx op);
+extern int s390_O_constraint_str (const char c, HOST_WIDE_INT value);
+extern int s390_N_constraint_str (const char *str, HOST_WIDE_INT value);
+extern int s390_float_const_zero_p (rtx value);
+extern bool s390_check_symref_alignment (rtx addr, HOST_WIDE_INT alignment);
+
/* Declare functions in s390.c. */
extern void optimization_options (int, int);
extern void override_options (void);
-extern HOST_WIDE_INT s390_arg_frame_offset (void);
-extern HOST_WIDE_INT s390_return_address_offset (void);
+extern HOST_WIDE_INT s390_initial_elimination_offset (int, int);
extern void s390_emit_prologue (void);
extern void s390_emit_epilogue (bool);
extern void s390_function_profiler (FILE *, int);
extern void s390_conditional_register_usage (void);
+extern void s390_set_has_landing_pad_p (bool);
+extern bool s390_hard_regno_mode_ok (unsigned int, enum machine_mode);
+extern bool s390_hard_regno_rename_ok (unsigned int, unsigned int);
+extern bool s390_class_max_nregs (enum reg_class, enum machine_mode);
#ifdef RTX_CODE
extern int s390_extra_constraint_str (rtx, int, const char *);
extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *);
-extern int const0_operand (rtx, enum machine_mode);
-extern int consttable_operand (rtx, enum machine_mode);
-extern int larl_operand (rtx, enum machine_mode);
-extern int s_operand (rtx, enum machine_mode);
-extern int s_imm_operand (rtx, enum machine_mode);
-extern int shift_count_operand (rtx, enum machine_mode);
-extern int bras_sym_operand (rtx, enum machine_mode);
-extern int load_multiple_operation (rtx, enum machine_mode);
-extern int store_multiple_operation (rtx, enum machine_mode);
+extern int s390_const_double_ok_for_constraint_p (rtx, int, const char *);
extern int s390_single_part (rtx, enum machine_mode, enum machine_mode, int);
extern unsigned HOST_WIDE_INT s390_extract_part (rtx, enum machine_mode, int);
+extern bool s390_contiguous_bitmask_p (unsigned HOST_WIDE_INT, int, int *, int *);
extern bool s390_split_ok_p (rtx, rtx, enum machine_mode, int);
+extern bool s390_overlap_p (rtx, rtx, HOST_WIDE_INT);
+extern bool s390_offset_p (rtx, rtx, rtx);
extern int tls_symbolic_operand (rtx);
-extern int s390_match_ccmode (rtx, enum machine_mode);
-extern enum machine_mode s390_tm_ccmode (rtx, rtx, int);
+extern bool s390_match_ccmode (rtx, enum machine_mode);
+extern enum machine_mode s390_tm_ccmode (rtx, rtx, bool);
extern enum machine_mode s390_select_ccmode (enum rtx_code, rtx, rtx);
extern void s390_canonicalize_comparison (enum rtx_code *, rtx *, rtx *);
-extern int s390_alc_comparison (rtx op, enum machine_mode mode);
-extern int s390_slb_comparison (rtx op, enum machine_mode mode);
extern rtx s390_emit_compare (enum rtx_code, rtx, rtx);
extern void s390_emit_jump (rtx, rtx);
-extern int symbolic_reference_mentioned_p (rtx);
-extern int tls_symbolic_reference_mentioned_p (rtx);
-extern int legitimate_la_operand_p (rtx);
-extern int preferred_la_operand_p (rtx, rtx);
+extern bool symbolic_reference_mentioned_p (rtx);
+extern bool tls_symbolic_reference_mentioned_p (rtx);
+extern bool legitimate_la_operand_p (rtx);
+extern bool preferred_la_operand_p (rtx, rtx);
extern int legitimate_pic_operand_p (rtx);
extern int legitimate_constant_p (rtx);
-extern int legitimate_reload_constant_p (rtx);
-extern int legitimate_address_p (enum machine_mode, rtx, int);
+extern bool legitimate_reload_constant_p (rtx);
extern rtx legitimize_pic_address (rtx, rtx);
-extern rtx legitimize_address (rtx, rtx, enum machine_mode);
extern rtx legitimize_reload_address (rtx, enum machine_mode, int, int);
extern enum reg_class s390_preferred_reload_class (rtx, enum reg_class);
extern enum reg_class s390_secondary_input_reload_class (enum reg_class,
extern enum reg_class s390_secondary_output_reload_class (enum reg_class,
enum machine_mode,
rtx);
-extern int s390_plus_operand (rtx, enum machine_mode);
+extern void s390_reload_larl_operand (rtx , rtx , rtx);
+extern void s390_reload_symref_address (rtx , rtx , rtx , bool);
extern void s390_expand_plus_operand (rtx, rtx, rtx);
extern void emit_symbolic_move (rtx *);
extern void s390_load_address (rtx, rtx);
extern void s390_expand_movmem (rtx, rtx, rtx);
-extern void s390_expand_clrmem (rtx, rtx);
+extern void s390_expand_setmem (rtx, rtx, rtx);
extern void s390_expand_cmpmem (rtx, rtx, rtx, rtx);
extern bool s390_expand_addcc (enum rtx_code, rtx, rtx, rtx, rtx, rtx);
+extern bool s390_expand_insv (rtx, rtx, rtx, rtx);
+extern void s390_expand_cs_hqi (enum machine_mode, rtx, rtx, rtx, rtx);
+extern void s390_expand_atomic (enum machine_mode, enum rtx_code,
+ rtx, rtx, rtx, bool);
extern rtx s390_return_addr_rtx (int, rtx);
extern rtx s390_back_chain_rtx (void);
extern rtx s390_emit_call (rtx, rtx, rtx, rtx);
+extern void s390_expand_logical_operator (enum rtx_code,
+ enum machine_mode, rtx *);
+extern bool s390_logical_operator_ok_p (rtx *);
+extern void s390_narrow_logical_operator (enum rtx_code, rtx *, rtx *);
+extern void s390_split_access_reg (rtx, rtx *, rtx *);
extern bool s390_output_addr_const_extra (FILE*, rtx);
extern void print_operand_address (FILE *, rtx);
extern void print_operand (FILE *, rtx, int);
-extern void s390_output_constant_pool (rtx, rtx);
extern void s390_output_pool_entry (rtx, enum machine_mode, unsigned int);
-extern void s390_trampoline_template (FILE *);
-extern void s390_initialize_trampoline (rtx, rtx, rtx);
-extern rtx s390_gen_rtx_const_DI (int, int);
-extern void s390_output_dwarf_dtprel (FILE*, int, rtx);
extern int s390_agen_dep_p (rtx, rtx);
extern rtx s390_load_got (void);
+extern rtx s390_get_thread_pointer (void);
extern void s390_emit_tpf_eh_return (rtx);
+extern bool s390_legitimate_address_without_index_p (rtx);
+extern bool s390_decompose_shift_count (rtx, rtx *, HOST_WIDE_INT *);
+extern int s390_branch_condition_mask (rtx);
+extern int s390_compare_and_branch_condition_mask (rtx);
#endif /* RTX_CODE */
tree, int);
#ifdef RTX_CODE
extern rtx s390_function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int);
-extern rtx s390_function_value (tree, enum machine_mode);
-extern void s390_va_start (tree, rtx);
+extern rtx s390_function_value (const_tree, const_tree, enum machine_mode);
#endif /* RTX_CODE */
#endif /* TREE_CODE */
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