home *** CD-ROM | disk | FTP | other *** search
- /* Declarations for insn-output.c. These functions are defined in recog.c,
- final.c, and varasm.c.
- Copyright (C) 1987, 1991 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC 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 version.
-
- GNU CC 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 GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Output a string of assembler code, substituting insn operands.
- Defined in final.c. */
- extern void output_asm_insn ();
-
- /* Output a string of assembler code, substituting numbers, strings
- and fixed syntactic prefixes. */
- extern void asm_fprintf ();
-
- /* Print an integer constant expression in assembler syntax.
- Addition and subtraction are the only arithmetic
- that may appear in these expressions. */
- extern void output_addr_const ();
-
- /* Output a name (as found inside a symbol_ref) in assembler syntax. */
- extern void assemble_name ();
-
- /* Replace a SUBREG with a REG or a MEM, based on the thing it is a
- subreg of. */
- extern rtx alter_subreg ();
-
- /* When outputting assembler code, indicates which alternative
- of the constraints was actually satisfied. */
- extern int which_alternative;
-
- /* When outputting delayed branch sequences, this rtx holds the
- sequence being output. It is null when no delayed branch
- sequence is being output, so it can be used as a test in the
- insn output code.
-
- This variable is defined in final.c. */
- extern rtx final_sequence;
-
- /* Number of bytes of args popped by function being compiled on its return.
- Zero if no bytes are to be popped.
- May affect compilation of return insn or of function epilogue. */
-
- extern int current_function_pops_args;
-
- /* Nonzero if function being compiled needs to be given an address
- where the value should be stored. */
-
- extern int current_function_returns_struct;
-
- /* Nonzero if function being compiled needs to
- return the address of where it has put a structure value. */
-
- extern int current_function_returns_pcc_struct;
-
- /* Nonzero if function being compiled needs to be passed a static chain. */
-
- extern int current_function_needs_context;
-
- /* Nonzero if function being compiled can call setjmp. */
-
- extern int current_function_calls_setjmp;
-
- /* Nonzero if function being compiled can call longjmp. */
-
- extern int current_function_calls_longjmp;
-
- /* Nonzero if function being compiled can call alloca,
- either as a subroutine or builtin. */
-
- extern int current_function_calls_alloca;
-
- /* Nonzero if function being compiled receives nonlocal gotos
- from nested functions. */
-
- extern int current_function_has_nonlocal_label;
-
- /* Nonzero if function being compiled contains nested functions. */
-
- extern int current_function_contains_functions;
-
- /* Nonzero if the current function returns a pointer type */
-
- extern int current_function_returns_pointer;
-
- /* If function's args have a fixed size, this is that size, in bytes.
- Otherwise, it is -1.
- May affect compilation of return insn or of function epilogue. */
-
- extern int current_function_args_size;
-
- /* # bytes the prologue should push and pretend that the caller pushed them.
- The prologue must do this, but only if parms can be passed in registers. */
-
- extern int current_function_pretend_args_size;
-
- /* # of bytes of outgoing arguments required to be pushed by the prologue.
- If this is non-zero, it means that ACCUMULATE_OUTGOING_ARGS was defined
- and no stack adjusts will be done on function calls. */
-
- extern int current_function_outgoing_args_size;
-
- /* Nonzero if current function uses varargs.h or equivalent.
- Zero for functions that use stdarg.h. */
-
- extern int current_function_varargs;
-
- /* Quantities of various kinds of registers
- used for the current function's args. */
-
- extern CUMULATIVE_ARGS current_function_args_info;
-
- /* Name of function now being compiled. */
-
- extern char *current_function_name;
-
- /* If non-zero, an RTL expression for that location at which the current
- function returns its result. Usually equal to
- DECL_RTL (DECL_RESULT (current_function_decl)). */
-
- extern rtx current_function_return_rtx;
-
- /* If some insns can be deferred to the delay slots of the epilogue, the
- delay list for them is recorded here. */
-
- extern rtx current_function_epilogue_delay_list;
-
- /* Nonzero means generate position-independent code.
- This is not fully implemented yet. */
-
- extern int flag_pic;
-
- /* This is nonzero if the current function uses pic_offset_table_rtx. */
- extern int current_function_uses_pic_offset_table;
-
- /* This is nonzero if the current function uses the constant pool. */
- extern int current_function_uses_const_pool;
-
- /* The line number of the beginning of the current function.
- sdbout.c needs this so that it can output relative linenumbers. */
-
- #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */
- extern int sdb_begin_function_line;
- #endif
-
- /* File in which assembler code is being written. */
-
- #ifdef BUFSIZ /* The hope is that any kind of stdio.h must define BUFSIZ. */
- extern FILE *asm_out_file;
- #endif
-