1 /* Definitions of target machine for GNU compiler, for IBM S/390. 2 Copyright (C) 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. 3 Contributed by Hartmut Penner (hpenner@de.ibm.com) 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 2, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING. If not, write to the Free 19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22 23 24 /* Prototypes of functions used for constraint evaluation in 25 constraints.c. */ 26 27 extern int s390_mem_constraint (const char *str, rtx op); 28 extern int s390_O_constraint_str (const char c, HOST_WIDE_INT value); 29 extern int s390_N_constraint_str (const char *str, HOST_WIDE_INT value); 30 extern int s390_float_const_zero_p (rtx value); 31 32 33 34 /* Declare functions in s390.c. */ 35 36 extern void optimization_options (int, int); 37 extern void override_options (void); 38 extern bool s390_can_eliminate (int, int); 39 extern HOST_WIDE_INT s390_initial_elimination_offset (int, int); 40 extern void s390_emit_prologue (void); 41 extern void s390_emit_epilogue (bool); 42 extern void s390_function_profiler (FILE *, int); 43 extern void s390_conditional_register_usage (void); 44 extern void s390_set_has_landing_pad_p (bool); 45 extern bool s390_hard_regno_mode_ok (unsigned int, enum machine_mode); 46 extern bool s390_hard_regno_rename_ok (unsigned int, unsigned int); 47 extern bool s390_class_max_nregs (enum reg_class, enum machine_mode); 48 49 #ifdef RTX_CODE 50 extern int s390_extra_constraint_str (rtx, int, const char *); 51 extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *); 52 extern int s390_const_double_ok_for_constraint_p (rtx, int, const char *); 53 extern int s390_single_part (rtx, enum machine_mode, enum machine_mode, int); 54 extern unsigned HOST_WIDE_INT s390_extract_part (rtx, enum machine_mode, int); 55 extern bool s390_split_ok_p (rtx, rtx, enum machine_mode, int); 56 extern bool s390_overlap_p (rtx, rtx, HOST_WIDE_INT); 57 extern bool s390_offset_p (rtx, rtx, rtx); 58 extern int tls_symbolic_operand (rtx); 59 60 extern bool s390_match_ccmode (rtx, enum machine_mode); 61 extern enum machine_mode s390_tm_ccmode (rtx, rtx, bool); 62 extern enum machine_mode s390_select_ccmode (enum rtx_code, rtx, rtx); 63 extern void s390_canonicalize_comparison (enum rtx_code *, rtx *, rtx *); 64 extern rtx s390_emit_compare (enum rtx_code, rtx, rtx); 65 extern void s390_emit_jump (rtx, rtx); 66 extern bool symbolic_reference_mentioned_p (rtx); 67 extern bool tls_symbolic_reference_mentioned_p (rtx); 68 extern bool legitimate_la_operand_p (rtx); 69 extern bool preferred_la_operand_p (rtx, rtx); 70 extern int legitimate_pic_operand_p (rtx); 71 extern int legitimate_constant_p (rtx); 72 extern bool legitimate_reload_constant_p (rtx); 73 extern bool legitimate_address_p (enum machine_mode, rtx, int); 74 extern rtx legitimize_pic_address (rtx, rtx); 75 extern rtx legitimize_address (rtx, rtx, enum machine_mode); 76 extern rtx legitimize_reload_address (rtx, enum machine_mode, int, int); 77 extern enum reg_class s390_preferred_reload_class (rtx, enum reg_class); 78 extern enum reg_class s390_secondary_input_reload_class (enum reg_class, 79 enum machine_mode, 80 rtx); 81 extern enum reg_class s390_secondary_output_reload_class (enum reg_class, 82 enum machine_mode, 83 rtx); 84 extern void s390_expand_plus_operand (rtx, rtx, rtx); 85 extern void emit_symbolic_move (rtx *); 86 extern void s390_load_address (rtx, rtx); 87 extern void s390_expand_movmem (rtx, rtx, rtx); 88 extern void s390_expand_setmem (rtx, rtx, rtx); 89 extern void s390_expand_cmpmem (rtx, rtx, rtx, rtx); 90 extern bool s390_expand_addcc (enum rtx_code, rtx, rtx, rtx, rtx, rtx); 91 extern bool s390_expand_insv (rtx, rtx, rtx, rtx); 92 extern void s390_expand_cs_hqi (enum machine_mode, rtx, rtx, rtx, rtx); 93 extern void s390_expand_atomic (enum machine_mode, enum rtx_code, 94 rtx, rtx, rtx, bool); 95 extern rtx s390_return_addr_rtx (int, rtx); 96 extern rtx s390_back_chain_rtx (void); 97 extern rtx s390_emit_call (rtx, rtx, rtx, rtx); 98 extern void s390_expand_logical_operator (enum rtx_code, 99 enum machine_mode, rtx *); 100 extern bool s390_logical_operator_ok_p (rtx *); 101 extern void s390_narrow_logical_operator (enum rtx_code, rtx *, rtx *); 102 extern void s390_split_access_reg (rtx, rtx *, rtx *); 103 104 extern bool s390_output_addr_const_extra (FILE*, rtx); 105 extern void print_operand_address (FILE *, rtx); 106 extern void print_operand (FILE *, rtx, int); 107 extern void s390_output_pool_entry (rtx, enum machine_mode, unsigned int); 108 extern void s390_trampoline_template (FILE *); 109 extern void s390_initialize_trampoline (rtx, rtx, rtx); 110 extern rtx s390_gen_rtx_const_DI (int, int); 111 extern int s390_agen_dep_p (rtx, rtx); 112 extern rtx s390_load_got (void); 113 extern rtx s390_get_thread_pointer (void); 114 extern void s390_emit_tpf_eh_return (rtx); 115 extern bool s390_legitimate_address_without_index_p (rtx); 116 extern bool s390_decompose_shift_count (rtx, rtx *, HOST_WIDE_INT *); 117 extern int s390_branch_condition_mask (rtx); 118 119 #endif /* RTX_CODE */ 120 121 #ifdef TREE_CODE 122 extern void s390_function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, 123 tree, int); 124 #ifdef RTX_CODE 125 extern rtx s390_function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int); 126 extern rtx s390_function_value (tree, enum machine_mode); 127 extern void s390_va_start (tree, rtx); 128 #endif /* RTX_CODE */ 129 #endif /* TREE_CODE */ 130