X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Foutput.h;h=1a2eefb36ebcf8e14d55c55d6b224f3856955299;hb=4a5feece4e5b04bfc028bcf2ec9d8ec15c7a785a;hp=ad78d23d1ab2f9668993194551716f19baf0ed31;hpb=fbba54631f02b92620667b67c43449360a2e1eb6;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/output.h b/gcc/output.h index ad78d23d1ab..1a2eefb36eb 100644 --- a/gcc/output.h +++ b/gcc/output.h @@ -1,24 +1,27 @@ /* 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 *)); @@ -35,7 +38,7 @@ extern void app_enable PARAMS ((void)); 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)); @@ -62,7 +65,7 @@ extern void final_start_function PARAMS ((rtx, FILE *, int)); /* 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)); @@ -74,7 +77,7 @@ extern rtx final_scan_insn PARAMS ((rtx, FILE *, int, 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. */ @@ -116,6 +119,11 @@ extern void split_double PARAMS ((rtx, rtx *, rtx *)); /* 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)); @@ -127,15 +135,17 @@ extern void leaf_renumber_regs_insn PARAMS ((rtx)); /* 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. */ @@ -153,13 +163,9 @@ extern void force_data_section PARAMS ((void)); 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 @@ -184,10 +190,26 @@ extern void init_section PARAMS ((void)); 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. @@ -198,13 +220,14 @@ extern void named_section PARAMS ((tree, const char *, int)); /* 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)); @@ -223,15 +246,6 @@ extern void weak_finish PARAMS ((void)); 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)); @@ -272,21 +286,6 @@ extern void assemble_variable PARAMS ((tree, int, int, int)); 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)); @@ -316,19 +315,40 @@ extern void assemble_eh_label PARAMS ((const char *)); 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 @@ -371,13 +391,12 @@ extern tree initializer_constant_valid_p PARAMS ((tree, tree)); 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 @@ -389,13 +408,8 @@ extern int which_alternative; 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; @@ -416,7 +430,7 @@ extern const char *weak_global_object_name; /* 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; @@ -427,7 +441,7 @@ extern int current_function_nothrow; /* 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; @@ -444,9 +458,11 @@ extern FILE *rtl_dump_file; #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. */ @@ -468,3 +484,63 @@ extern const char *user_label_prefix; #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 *));