/* Declarations for insn-output.c. These functions are defined in recog.c,
final.c, and varasm.c.
Copyright (C) 1987, 1991, 1994, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ 1999, 2000, 2001 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-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.
+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
+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.
+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 GNU CC; 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 COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
+
+/* Compute branch alignments based on frequency information in the CFG. */
+extern void compute_alignments PARAMS ((void));
/* Initialize data in final at the beginning of a compilation. */
extern void init_final PARAMS ((const char *));
Called from varasm.c before most kinds of output. */
extern void app_disable PARAMS ((void));
-/* Return the number of slots filled in the current
+/* Return the number of slots filled in the current
delayed branch sequence (we don't count the insn needing the
delay slot). Zero if not in a delayed branch sequence. */
extern int dbr_sequence_length PARAMS ((void));
/* Output assembler code for the end of a function.
For clarity, args are same as those of `final_start_function'
even though not all of them are needed. */
-extern void final_end_function PARAMS ((rtx, FILE *, int));
+extern void final_end_function PARAMS ((void));
/* Output assembler code for some insns: all or part of a function. */
extern void final PARAMS ((rtx, FILE *, int, int));
/* Replace a SUBREG with a REG or a MEM, based on the thing it is a
subreg of. */
-extern rtx alter_subreg PARAMS ((rtx));
+extern rtx alter_subreg PARAMS ((rtx *));
/* Report inconsistency between the assembler template and the operands.
In an `asm', it's the user's fault; otherwise, the compiler's fault. */
/* Return nonzero if this function has no function calls. */
extern int leaf_function_p PARAMS ((void));
+/* Return 1 if branch is an forward branch.
+ Uses insn_shuid array, so it works only in the final pass. May be used by
+ output templates to add branch prediction hints, for example. */
+extern int final_forward_branch_p PARAMS ((rtx));
+
/* Return 1 if this function uses only the registers that can be
safely renumbered. */
extern int only_leaf_regs_used PARAMS ((void));
/* Locate the proper template for the given insn-code. */
extern const char *get_insn_template PARAMS ((int, rtx));
+/* Add function NAME to the weak symbols list. VALUE is a weak alias
+ associated with NAME. */
+extern int add_weak PARAMS ((const char *, const char *));
+
/* Functions in flow.c */
extern void allocate_for_life_analysis PARAMS ((void));
-extern int regno_uninitialized PARAMS ((int));
+extern int regno_uninitialized PARAMS ((unsigned int));
extern int regno_clobbered_at_setjmp PARAMS ((int));
-extern void dump_flow_info PARAMS ((FILE *));
extern void find_basic_blocks PARAMS ((rtx, int, FILE *));
-extern void cleanup_cfg PARAMS ((rtx));
-extern void free_basic_block_vars PARAMS ((int));
-extern void set_block_num PARAMS ((rtx, int));
+extern bool cleanup_cfg PARAMS ((int));
+extern void check_function_return_warnings PARAMS ((void));
#endif
/* Functions in varasm.c. */
the text section. */
extern void readonly_data_section PARAMS ((void));
-/* Determine if we're in the text section. */
+/* Determine if we're in the text section. */
extern int in_text_section PARAMS ((void));
-#ifdef EH_FRAME_SECTION_ASM_OP
-extern void eh_frame_section PARAMS ((void));
-#endif
-
#ifdef CTORS_SECTION_ASM_OP
extern void ctors_section PARAMS ((void));
#endif
extern void fini_section PARAMS ((void));
#endif
+#ifdef EXPORTS_SECTION_ASM_OP
+extern void exports_section PARAMS ((void));
+#endif
+
#ifdef TDESC_SECTION_ASM_OP
extern void tdesc_section PARAMS ((void));
#endif
+#ifdef DRECTVE_SECTION_ASM_OP
+extern void drectve_section PARAMS ((void));
+#endif
+
+#ifdef SDATA_SECTION_ASM_OP
+extern void sdata_section PARAMS ((void));
+#endif
+
+#ifdef RDATA_SECTION_ASM_OP
+extern void rdata_section PARAMS ((void));
+#endif
+
#ifdef TREE_CODE
/* Tell assembler to change to section NAME for DECL.
If DECL is NULL, just switch to section NAME.
/* Tell assembler to switch to the section for function DECL. */
extern void function_section PARAMS ((tree));
-/* Tell assembler to switch to the section for the exception table. */
-extern void exception_section PARAMS ((void));
+/* Tell assembler to switch to the section for string merging. */
+extern void mergeable_string_section PARAMS ((tree, unsigned HOST_WIDE_INT,
+ unsigned int));
-/* Create the rtl to represent a function, for a function definition.
- DECL is a FUNCTION_DECL node which describes which function.
- The rtl is stored into DECL. */
-extern void make_function_rtl PARAMS ((tree));
+/* Tell assembler to switch to the section for constant merging. */
+extern void mergeable_constant_section PARAMS ((enum machine_mode,
+ unsigned HOST_WIDE_INT,
+ unsigned int));
/* Declare DECL to be a weak symbol. */
extern void declare_weak PARAMS ((tree));
extern int decode_reg_name PARAMS ((const char *));
#ifdef TREE_CODE
-/* Create the DECL_RTL for a declaration for a static or external variable
- or static or external function.
- ASMSPEC, if not 0, is the string which the user specified
- as the assembler symbol name.
- TOP_LEVEL is nonzero if this is a file-scope variable.
-
- This is never called for PARM_DECL nodes. */
-extern void make_decl_rtl PARAMS ((tree, const char *, int));
-
/* Make the rtl for variable VAR be volatile.
Use this only for static variables. */
extern void make_var_volatile PARAMS ((tree));
extern void assemble_external PARAMS ((tree));
#endif /* TREE_CODE */
-/* Record an element in the table of global destructors.
- How this is done depends on what sort of assembler and linker
- are in use.
-
- NAME should be the name of a global function to be called
- at exit time. This name is output using assemble_name. */
-extern void assemble_destructor PARAMS ((const char *));
-
-/* Likewise for global constructors. */
-extern void assemble_constructor PARAMS ((const char *));
-
-/* Likewise for entries we want to record for garbage collection.
- Garbage collection is still under development. */
-extern void assemble_gc_entry PARAMS ((const char *));
-
/* Assemble code to leave SIZE bytes of zeros. */
extern void assemble_zeros PARAMS ((int));
Many macros in the tm file are defined to call this function. */
extern void assemble_name PARAMS ((FILE *, const char *));
-#ifdef RTX_CODE
-/* Assemble the integer constant X into an object of SIZE bytes.
- X must be either a CONST_INT or CONST_DOUBLE.
+/* Return the assembler directive for creating a given kind of integer
+ object. SIZE is the number of bytes in the object and ALIGNED_P
+ indicates whether it is known to be aligned. Return NULL if the
+ assembly dialect has no such directive.
- Return 1 if we were able to output the constant, otherwise 0. If FORCE is
- non-zero, abort if we can't output the constant. */
-extern int assemble_integer PARAMS ((rtx, int, int));
-extern int assemble_eh_integer PARAMS ((rtx, int, int));
+ The returned string should be printed at the start of a new line and
+ be followed immediately by the object's initial value. */
+extern const char *integer_asm_op PARAMS ((int, int));
-#ifdef EMUSHORT
+#ifdef RTX_CODE
+/* Use directive OP to assemble an integer object X. Print OP at the
+ start of the line, followed immediately by the value of X. */
+extern void assemble_integer_with_op PARAMS ((const char *, rtx));
+
+/* The default implementation of the asm_out.integer target hook. */
+extern bool default_assemble_integer PARAMS ((rtx, unsigned int, int));
+
+/* Assemble the integer constant X into an object of SIZE bytes. ALIGN is
+ the alignment of the integer in bits. Return 1 if we were able to output
+ the constant, otherwise 0. If FORCE is non-zero, abort if we can't output
+ the constant. */
+extern bool assemble_integer PARAMS ((rtx, unsigned, unsigned, int));
+
+/* An interface to assemble_integer for the common case in which a value is
+ fully aligned and must be printed. VALUE is the value of the integer
+ object and SIZE is the number of bytes it contains. */
+#define assemble_aligned_integer(SIZE, VALUE) \
+ assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1)
+
+#ifdef REAL_VALUE_TYPE
/* Assemble the floating-point constant D into an object of size MODE. */
extern void assemble_real PARAMS ((REAL_VALUE_TYPE,
- enum machine_mode));
+ enum machine_mode,
+ unsigned));
#endif
#endif
Assumes output_addressed_constants has been done on EXP already.
Generate exactly SIZE bytes of assembler data, padding at the end
- with zeros if necessary. SIZE must always be specified. */
-extern void output_constant PARAMS ((tree, int));
-#endif
+ with zeros if necessary. SIZE must always be specified.
-/* When outputting assembler code, indicates which alternative
- of the constraints was actually satisfied. */
-extern int which_alternative;
+ ALIGN is the alignment in bits that may be assumed for the data. */
+extern void output_constant PARAMS ((tree, HOST_WIDE_INT,
+ unsigned int));
+#endif
#ifdef RTX_CODE
/* When outputting delayed branch sequences, this rtx holds the
extern rtx final_sequence;
#endif
-/* Nonzero means generate position-independent code.
- This is not fully implemented yet. */
-
-extern int flag_pic;
-
-/* The line number of the beginning of the current function.
- sdbout.c needs this so that it can output relative linenumbers. */
+/* The line number of the beginning of the current function. Various
+ md code 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;
/* Nonzero if function being compiled doesn't contain any calls
(ignoring the prologue and epilogue). This is set prior to
local register allocation and is valid for the remaining
- compiler passes. */
+ compiler passes. */
extern int current_function_is_leaf;
/* Nonzero if function being compiled doesn't modify the stack pointer
(ignoring the prologue and epilogue). This is only valid after
- life_analysis has run. */
+ life_analysis has run. */
extern int current_function_sp_is_unchanging;
#endif
/* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */
-
extern struct rtx_def *current_insn_predicate;
+/* Last insn processed by final_scan_insn. */
+extern struct rtx_def *current_output_insn;
+
/* Decide whether DECL needs to be in a writable section. RELOC is the same
as for SELECT_SECTION. */
#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
(VAR) = ((SYMBOL_NAME) + ((SYMBOL_NAME)[0] == '*'))
#endif
+/* Assign unique numbers to labels generated for profiling. */
+
+extern int profile_label_no;
+
+/* Default target function prologue and epilogue assembler output. */
+extern void default_function_pro_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
+
+/* Tell assembler to switch to the section for the exception table. */
+extern void default_exception_section PARAMS ((void));
+
+/* Tell assembler to switch to the section for the EH frames. */
+extern void default_eh_frame_section PARAMS ((void));
+
+/* Default target hook that outputs nothing to a stream. */
+extern void no_asm_to_stream PARAMS ((FILE *));
+
+/* Flags controling properties of a section. */
+#define SECTION_ENTSIZE 0x000ff /* entity size in section */
+#define SECTION_CODE 0x00100 /* contains code */
+#define SECTION_WRITE 0x00200 /* data is writable */
+#define SECTION_DEBUG 0x00400 /* contains debug data */
+#define SECTION_LINKONCE 0x00800 /* is linkonce */
+#define SECTION_SMALL 0x01000 /* contains "small data" */
+#define SECTION_BSS 0x02000 /* contains zeros only */
+#define SECTION_FORGET 0x04000 /* forget that we've entered the section */
+#define SECTION_MERGE 0x08000 /* contains mergeable data */
+#define SECTION_STRINGS 0x10000 /* contains zero terminated strings without
+ embedded zeros */
+#define SECTION_MACH_DEP 0x20000 /* subsequent bits reserved for target */
+
+extern unsigned int get_named_section_flags PARAMS ((const char *));
+extern bool set_named_section_flags PARAMS ((const char *, unsigned int));
+extern void named_section_flags PARAMS ((const char *, unsigned int));
+extern bool named_section_first_declaration PARAMS((const char *));
+
+union tree_node;
+extern unsigned int default_section_type_flags PARAMS ((union tree_node *,
+ const char *, int));
+
+extern void default_no_named_section PARAMS ((const char *, unsigned int));
+extern void default_elf_asm_named_section PARAMS ((const char *, unsigned int));
+extern void default_coff_asm_named_section PARAMS ((const char *,
+ unsigned int));
+extern void default_pe_asm_named_section PARAMS ((const char *, unsigned int));
+
+extern void default_stabs_asm_out_destructor PARAMS ((struct rtx_def *, int));
+extern void default_named_section_asm_out_destructor PARAMS ((struct rtx_def *,
+ int));
+extern void default_dtor_section_asm_out_destructor PARAMS ((struct rtx_def *,
+ int));
+extern void default_stabs_asm_out_constructor PARAMS ((struct rtx_def *, int));
+extern void default_named_section_asm_out_constructor PARAMS ((struct rtx_def *,
+ int));
+extern void default_ctor_section_asm_out_constructor PARAMS ((struct rtx_def *,
+ int));
+
+/* Emit data for vtable gc for GNU binutils. */
+extern void assemble_vtable_entry PARAMS ((struct rtx_def *, HOST_WIDE_INT));
+extern void assemble_vtable_inherit PARAMS ((struct rtx_def *,
+ struct rtx_def *));
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