/* Internal to rs6000 type, variable, and function declarations and definitons shared between the various rs6000 source files. Copyright (C) 1991-2022 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) 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 . */ #ifndef GCC_RS6000_INTERNAL_H #define GCC_RS6000_INTERNAL_H #include "rs6000-builtins.h" /* Structure used to define the rs6000 stack */ typedef struct rs6000_stack { int reload_completed; /* stack info won't change from here on */ int first_gp_reg_save; /* first callee saved GP register used */ int first_fp_reg_save; /* first callee saved FP register used */ int first_altivec_reg_save; /* first callee saved AltiVec register used */ int lr_save_p; /* true if the link reg needs to be saved */ int cr_save_p; /* true if the CR reg needs to be saved */ unsigned int vrsave_mask; /* mask of vec registers to save */ int push_p; /* true if we need to allocate stack space */ int calls_p; /* true if there are non-sibling calls */ int world_save_p; /* true if we're saving *everything*: r13-r31, cr, f14-f31, vrsave, v20-v31 */ enum rs6000_abi abi; /* which ABI to use */ int gp_save_offset; /* offset to save GP regs from initial SP */ int fp_save_offset; /* offset to save FP regs from initial SP */ int altivec_save_offset; /* offset to save AltiVec regs from initial SP */ int rop_hash_save_offset; /* offset to save ROP hash from initial SP */ int lr_save_offset; /* offset to save LR from initial SP */ int cr_save_offset; /* offset to save CR from initial SP */ int vrsave_save_offset; /* offset to save VRSAVE from initial SP */ int varargs_save_offset; /* offset to save the varargs registers */ int ehrd_offset; /* offset to EH return data */ int ehcr_offset; /* offset to EH CR field data */ int reg_size; /* register size (4 or 8) */ HOST_WIDE_INT vars_size; /* variable save area size */ int parm_size; /* outgoing parameter size */ int save_size; /* save area size */ int fixed_size; /* fixed size of stack frame */ int gp_size; /* size of saved GP registers */ int fp_size; /* size of saved FP registers */ int altivec_size; /* size of saved AltiVec registers */ int rop_hash_size; /* size of ROP hash slot */ int cr_size; /* size to hold CR if not in fixed area */ int vrsave_size; /* size to hold VRSAVE */ int altivec_padding_size; /* size of altivec alignment padding */ HOST_WIDE_INT total_size; /* total bytes allocated for stack */ int savres_strategy; } rs6000_stack_t; extern int need_toc_init; extern char toc_label_name[10]; extern int rs6000_pic_labelno; #ifdef USING_ELFOS_H extern const char *rs6000_machine; #endif /* The VRSAVE bitmask puts bit %v0 as the most significant bit. */ #define ALTIVEC_REG_BIT(REGNO) (0x80000000 >> ((REGNO) - FIRST_ALTIVEC_REGNO)) /* Declare functions in rs6000-logue.cc or called in rs6000.cc from rs6000-logue.cc */ extern int uses_TOC (void); extern bool rs6000_global_entry_point_needed_p (void); extern void rs6000_output_function_prologue (FILE *file); extern void rs6000_output_function_epilogue (FILE *file); extern bool rs6000_function_ok_for_sibcall (tree decl, tree exp); extern sbitmap rs6000_get_separate_components (void); extern sbitmap rs6000_components_for_bb (basic_block bb); extern void rs6000_disqualify_components (sbitmap components, edge e, sbitmap edge_components, bool /*is_prologue*/); extern void rs6000_emit_prologue_components (sbitmap components); extern void rs6000_emit_epilogue_components (sbitmap components); extern void rs6000_set_handled_components (sbitmap components); extern rs6000_stack_t * rs6000_stack_info (void); extern rtx rs6000_got_sym (void); extern struct machine_function *rs6000_init_machine_status (void); extern bool save_reg_p (int reg); extern const char * rs6000_machine_from_flags (void); extern void emit_asm_machine (void); extern bool rs6000_global_entry_point_prologue_needed_p (void); extern bool rs6000_keep_leaf_when_profiled (void); extern void rs6000_live_on_entry (bitmap regs); /* Return true if the OFFSET is valid for the quad address instructions that use d-form (register + offset) addressing. */ static inline bool quad_address_offset_p (HOST_WIDE_INT offset) { return (IN_RANGE (offset, -32768, 32767) && ((offset) & 0xf) == 0); } /* Mach-O (Darwin) support for longcalls, emitted from rs6000-logue.cc. */ #if TARGET_MACHO typedef struct branch_island_d { tree function_name; tree label_name; int line_number; } branch_island; extern vec *branch_islands; #endif /* Declare functions in rs6000-call.cc or called in rs6000.cc from rs6000-call.cc */ extern int rs6000_darwin64_struct_check_p (machine_mode mode, const_tree type); extern bool rs6000_discover_homogeneous_aggregate (machine_mode mode, const_tree type, machine_mode *elt_mode, int *n_elts); extern void rs6000_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED, HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, tree function); extern bool rs6000_output_addr_const_extra (FILE *file, rtx x); extern bool rs6000_gimple_fold_builtin (gimple_stmt_iterator *gsi); extern tree rs6000_build_builtin_va_list (void); extern void rs6000_invalid_builtin (rs6000_gen_builtins fncode); extern void rs6000_va_start (tree valist, rtx nextarg); extern tree rs6000_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p, gimple_seq *post_p); extern machine_mode rs6000_promote_function_mode (const_tree type ATTRIBUTE_UNUSED, machine_mode mode, int *punsignedp ATTRIBUTE_UNUSED, const_tree, int); extern bool rs6000_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED); extern bool rs6000_return_in_msb (const_tree valtype); extern bool rs6000_pass_by_reference (cumulative_args_t, const function_arg_info &); extern void setup_incoming_varargs (cumulative_args_t, const function_arg_info &, int *, int); extern unsigned int rs6000_function_arg_boundary (machine_mode mode, const_tree type); extern bool rs6000_must_pass_in_stack (const function_arg_info &); extern int rs6000_arg_partial_bytes (cumulative_args_t, const function_arg_info &); extern void rs6000_function_arg_advance (cumulative_args_t, const function_arg_info &); extern pad_direction rs6000_function_arg_padding (machine_mode mode, const_tree type); extern rtx rs6000_function_arg (cumulative_args_t, const function_arg_info &); extern rtx rs6000_darwin64_record_arg (CUMULATIVE_ARGS *, const_tree, bool, bool); extern rtx rs6000_internal_arg_pointer (void); extern void rs6000_init_builtins (void); extern tree rs6000_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED); extern rtx rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, machine_mode mode ATTRIBUTE_UNUSED, int ignore ATTRIBUTE_UNUSED); extern tree rs6000_fold_builtin (tree fndecl ATTRIBUTE_UNUSED, int n_args ATTRIBUTE_UNUSED, tree *args ATTRIBUTE_UNUSED, bool ignore ATTRIBUTE_UNUSED); extern bool rs6000_passes_float; extern bool rs6000_passes_long_double; extern bool rs6000_passes_vector; extern bool rs6000_returns_struct; extern bool cpu_builtin_p; #endif