X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fgengenrtl.c;h=149e54ba7d49854cee42e87d37b7ee0ebd02e215;hp=d9e55eb016460068961b30ad8c253c391af4fdee;hb=f8b861a00edc008e3fe1c86e1a63f93488d9acd8;hpb=a3426c4cd1aa33f95043869f8b3b23357b929c3e diff --git a/gcc/gengenrtl.c b/gcc/gengenrtl.c index d9e55eb0164..149e54ba7d4 100644 --- a/gcc/gengenrtl.c +++ b/gcc/gengenrtl.c @@ -1,122 +1,128 @@ /* Generate code to allocate RTL structures. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007 + 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 3, 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 COPYING3. If not see +. */ -#include "hconfig.h" +#include "bconfig.h" #include "system.h" -#include "obstack.h" -#define obstack_chunk_alloc xmalloc -#define obstack_chunk_free free - -#define NO_GENRTL_H -#include "rtl.h" - - -struct rtx_definition +struct rtx_definition { - const char *enumname, *name, *format; + const char *const enumname, *const name, *const format; }; -#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { STRINGIFY(ENUM), NAME, FORMAT }, +/* rtl.def needs CONST_DOUBLE_FORMAT, but we don't care what + CONST_DOUBLE_FORMAT is because we're not going to be generating + anything for CONST_DOUBLE anyway. */ +#define CONST_DOUBLE_FORMAT "" -struct rtx_definition defs[] = -{ +#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { #ENUM, NAME, FORMAT }, + +static const struct rtx_definition defs[] = +{ #include "rtl.def" /* rtl expressions are documented here */ }; - -const char *formats[NUM_RTX_CODE]; - -static const char *type_from_format PROTO((char)); -static const char *accessor_from_format PROTO((char)); -static int special_format PROTO((const char *)); -static int special_rtx PROTO((int)); -static void find_formats PROTO((void)); -static void gendecl PROTO((FILE *, const char *)); -static void genmacro PROTO((FILE *, int)); -static void gendef PROTO((FILE *, const char *)); -static void genlegend PROTO((FILE *)); -static void genheader PROTO((FILE *)); -static void gencode PROTO((FILE *)); +#define NUM_RTX_CODE ARRAY_SIZE(defs) + +static const char *formats[NUM_RTX_CODE]; + +static const char *type_from_format (int); +static const char *accessor_from_format (int); +static int special_format (const char *); +static int special_rtx (int); +static int excluded_rtx (int); +static void find_formats (void); +static void gendecl (const char *); +static void genmacro (int); +static void gendef (const char *); +static void genlegend (void); +static void genheader (void); +static void gencode (void); + +/* Decode a format letter into a C type string. */ static const char * -type_from_format (c) - char c; +type_from_format (int c) { switch (c) { case 'i': - return "int"; + return "int "; + case 'w': - return "HOST_WIDE_INT"; + return "HOST_WIDE_INT "; + case 's': - return "char *"; - case 'e': - case 'u': - return "rtx"; + return "const char *"; + + case 'e': case 'u': + return "rtx "; + case 'E': - return "rtvec"; - /* ?!? These should be bitmap and tree respectively, but those types - are not available in many of the files which include the output - of gengenrtl. - - These are only used in prototypes, so I think we can assume that - void * is useable. */ - case 'b': - return "void *"; + return "rtvec "; case 't': - return "void *"; + return "union tree_node *"; /* tree - typedef not available */ + case 'B': + return "struct basic_block_def *"; /* basic block - typedef not available */ default: - abort (); + gcc_unreachable (); } } +/* Decode a format letter into the proper accessor function. */ + static const char * -accessor_from_format (c) - char c; +accessor_from_format (int c) { switch (c) { case 'i': return "XINT"; + case 'w': return "XWINT"; + case 's': return "XSTR"; - case 'e': - case 'u': + + case 'e': case 'u': return "XEXP"; + case 'E': return "XVEC"; - case 'b': - return "XBITMAP"; + case 't': return "XTREE"; + + case 'B': + return "XBBDEF"; + default: - abort (); + gcc_unreachable (); } } +/* Return nonzero if we should ignore FMT, an RTL format, when making + the list of formats we write routines to create. */ + static int -special_format (fmt) - const char *fmt; +special_format (const char *fmt) { return (strchr (fmt, '*') != 0 || strchr (fmt, 'V') != 0 @@ -124,213 +130,230 @@ special_format (fmt) || strchr (fmt, 'n') != 0); } +/* Return nonzero if the RTL code given by index IDX is one that we should + generate a gen_rtx_raw_FOO macro for, not gen_rtx_FOO (because gen_rtx_FOO + is a wrapper in emit-rtl.c). */ + static int -special_rtx (idx) - int idx; +special_rtx (int idx) { return (strcmp (defs[idx].enumname, "CONST_INT") == 0 - || strcmp (defs[idx].enumname, "REG") == 0); + || strcmp (defs[idx].enumname, "REG") == 0 + || strcmp (defs[idx].enumname, "SUBREG") == 0 + || strcmp (defs[idx].enumname, "MEM") == 0 + || strcmp (defs[idx].enumname, "CONST_VECTOR") == 0); +} + +/* Return nonzero if the RTL code given by index IDX is one that we should + generate no macro for at all (because gen_rtx_FOO is never used or + cannot have the obvious interface). */ + +static int +excluded_rtx (int idx) +{ + return ((strcmp (defs[idx].enumname, "CONST_DOUBLE") == 0) + || (strcmp (defs[idx].enumname, "CONST_FIXED") == 0)); } +/* Place a list of all format specifiers we use into the array FORMAT. */ + static void -find_formats () +find_formats (void) { - int i; + unsigned int i; - for (i = 0; i < NUM_RTX_CODE; ++i) + for (i = 0; i < NUM_RTX_CODE; i++) { const char **f; if (special_format (defs[i].format)) continue; - for (f = formats; *f ; ++f) - if (!strcmp(*f, defs[i].format)) + for (f = formats; *f; f++) + if (! strcmp (*f, defs[i].format)) break; - if (!*f) + if (*f == 0) *f = defs[i].format; } } +/* Write the declarations for the routine to allocate RTL with FORMAT. */ + static void -gendecl (f, format) - FILE *f; - const char *format; +gendecl (const char *format) { const char *p; - int i; - - fprintf (f, "extern rtx gen_rtx_fmt_%s PROTO((RTX_CODE, enum machine_mode mode", - format); - for (p = format, i = 0; *p ; ++p) + int i, pos; + + printf ("extern rtx gen_rtx_fmt_%s_stat\t (RTX_CODE, ", format); + printf ("enum machine_mode mode"); + + /* Write each parameter that is needed and start a new line when the line + would overflow. */ + for (p = format, i = 0, pos = 75; *p != 0; p++) if (*p != '0') - fprintf (f, ", %s arg%d", type_from_format (*p), i++); - fprintf (f, "));\n"); + { + int ourlen = strlen (type_from_format (*p)) + 6 + (i > 9); + + printf (","); + if (pos + ourlen > 76) + printf ("\n\t\t\t\t "), pos = 39; + + printf (" %sarg%d", type_from_format (*p), i++); + pos += ourlen; + } + printf (" MEM_STAT_DECL"); + + printf (");\n"); + printf ("#define gen_rtx_fmt_%s(c, m", format); + for (p = format, i = 0; *p != 0; p++) + if (*p != '0') + printf (", p%i",i++); + printf (")\\\n gen_rtx_fmt_%s_stat (c, m", format); + for (p = format, i = 0; *p != 0; p++) + if (*p != '0') + printf (", p%i",i++); + printf (" MEM_STAT_INFO)\n\n"); } -static void -genmacro (f, idx) - FILE *f; - int idx; +/* Generate macros to generate RTL of code IDX using the functions we + write. */ + +static void +genmacro (int idx) { const char *p; int i; - fprintf (f, "#define gen_rtx_%s%s(mode", - (special_rtx (idx) ? "raw_" : ""), defs[idx].enumname); + /* We write a macro that defines gen_rtx_RTLCODE to be an equivalent to + gen_rtx_fmt_FORMAT where FORMAT is the RTX_FORMAT of RTLCODE. */ + + if (excluded_rtx (idx)) + /* Don't define a macro for this code. */ + return; - for (p = defs[idx].format, i = 0; *p ; ++p) + printf ("#define gen_rtx_%s%s(MODE", + special_rtx (idx) ? "raw_" : "", defs[idx].enumname); + + for (p = defs[idx].format, i = 0; *p != 0; p++) if (*p != '0') - fprintf (f, ", arg%d", i++); - fprintf (f, ") "); + printf (", ARG%d", i++); + + printf (") \\\n gen_rtx_fmt_%s (%s, (MODE)", + defs[idx].format, defs[idx].enumname); - fprintf (f, "gen_rtx_fmt_%s(%s,(mode)", defs[idx].format, defs[idx].enumname); - for (p = defs[idx].format, i = 0; *p ; ++p) + for (p = defs[idx].format, i = 0; *p != 0; p++) if (*p != '0') - fprintf (f, ",(arg%d)", i++); - fprintf (f, ")\n"); + printf (", (ARG%d)", i++); + + puts (")"); } +/* Generate the code for the function to generate RTL whose + format is FORMAT. */ + static void -gendef (f, format) - FILE *f; - const char *format; +gendef (const char *format) { const char *p; int i, j; - - fprintf (f, "rtx\ngen_rtx_fmt_%s (code, mode", format); - for (p = format, i = 0; *p ; ++p) - if (*p != '0') - fprintf (f, ", arg%d", i++); - fprintf (f, ")\n RTX_CODE code;\n enum machine_mode mode;\n"); - for (p = format, i = 0; *p ; ++p) + /* Start by writing the definition of the function name and the types + of the arguments. */ + + printf ("rtx\ngen_rtx_fmt_%s_stat (RTX_CODE code, enum machine_mode mode", format); + for (p = format, i = 0; *p != 0; p++) if (*p != '0') - fprintf (f, " %s arg%d;\n", type_from_format (*p), i++); + printf (",\n\t%sarg%d", type_from_format (*p), i++); + + puts (" MEM_STAT_DECL)"); - /* See rtx_alloc in rtl.c for comments. */ - fprintf (f, "{\n"); - fprintf (f, " rtx rt = obstack_alloc_rtx (sizeof (struct rtx_def) + %d * sizeof (rtunion));\n", - (int) strlen (format) - 1); + /* Now write out the body of the function itself, which allocates + the memory and initializes it. */ + puts ("{"); + puts (" rtx rt;"); + puts (" rt = rtx_alloc_stat (code PASS_MEM_STAT);\n"); - fprintf (f, " PUT_CODE (rt, code);\n"); - fprintf (f, " PUT_MODE (rt, mode);\n"); + puts (" PUT_MODE (rt, mode);"); for (p = format, i = j = 0; *p ; ++p, ++i) if (*p != '0') - { - fprintf (f, " %s (rt, %d) = arg%d;\n", - accessor_from_format (*p), i, j++); - } + printf (" %s (rt, %d) = arg%d;\n", accessor_from_format (*p), i, j++); + else + printf (" X0EXP (rt, %d) = NULL_RTX;\n", i); - fprintf (f, "\n return rt;\n}\n\n"); + puts ("\n return rt;\n}\n"); } +/* Generate the documentation header for files we write. */ + static void -genlegend (f) - FILE *f; +genlegend (void) { - fprintf (f, "/* Generated automaticaly by the program `gengenrtl'\n"); - fprintf (f, " from the RTL description file `rtl.def' */\n\n"); + puts ("/* Generated automatically by gengenrtl from rtl.def. */\n"); } +/* Generate the text of the header file we make, genrtl.h. */ + static void -genheader (f) - FILE *f; +genheader (void) { - int i; + unsigned int i; const char **fmt; + puts ("#ifndef GCC_GENRTL_H"); + puts ("#define GCC_GENRTL_H\n"); + puts ("#include \"statistics.h\"\n"); + for (fmt = formats; *fmt; ++fmt) - gendecl (f, *fmt); + gendecl (*fmt); - fprintf(f, "\n"); + putchar ('\n'); for (i = 0; i < NUM_RTX_CODE; i++) - { - if (special_format (defs[i].format)) - continue; - genmacro (f, i); - } + if (! special_format (defs[i].format)) + genmacro (i); + + puts ("\n#endif /* GCC_GENRTL_H */"); } +/* Generate the text of the code file we write, genrtl.c. */ + static void -gencode (f) - FILE *f; +gencode (void) { const char **fmt; - fputs ("#include \"config.h\"\n", f); - fputs ("#include \"system.h\"\n", f); - fputs ("#include \"obstack.h\"\n", f); - fputs ("#include \"rtl.h\"\n\n", f); - fputs ("extern struct obstack *rtl_obstack;\n\n", f); - fputs ("static rtx obstack_alloc_rtx PROTO((int length));\n", f); - fputs ("static rtx obstack_alloc_rtx (length)\n", f); - fputs (" register int length;\n{\n", f); - fputs (" rtx rt = (rtx) obstack_alloc (rtl_obstack, length);\n\n", f); - fputs (" if (sizeof(struct rtx_def) - sizeof(rtunion) == sizeof(int))\n", f); - fputs (" *(int *)rt = 0;\n", f); - fputs (" else if (sizeof(struct rtx_def) - sizeof(rtunion) == sizeof(HOST_WIDE_INT))\n", f); - fputs (" *(HOST_WIDE_INT *)rt = 0;\n", f); - fputs (" else\n", f); - fputs (" bzero((char *) rt, sizeof(struct rtx_def) - sizeof(rtunion));\n\n", f); - fputs (" return rt;\n}\n\n", f); + puts ("#include \"config.h\""); + puts ("#include \"system.h\""); + puts ("#include \"coretypes.h\""); + puts ("#include \"tm.h\""); + puts ("#include \"obstack.h\""); + puts ("#include \"rtl.h\""); + puts ("#include \"ggc.h\"\n"); - for (fmt = formats; *fmt; ++fmt) - gendef (f, *fmt); + for (fmt = formats; *fmt != 0; fmt++) + gendef (*fmt); } -#if defined(USE_C_ALLOCA) && !defined(__GNUC__) -char * -xmalloc (nbytes) - int nbytes; -{ - char *tmp = (char *) malloc (nbytes); - - if (!tmp) - { - fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes); - exit (FATAL_EXIT_CODE); - } - - return tmp; -} -#endif /* USE_C_ALLOCA && !__GNUC__ */ +/* This is the main program. We accept only one argument, "-h", which + says we are writing the genrtl.h file. Otherwise we are writing the + genrtl.c file. */ int -main(argc, argv) - int argc; - char **argv; +main (int argc, char **argv) { - FILE *f; - - if (argc != 3) - exit (1); - find_formats (); + genlegend (); - f = fopen (argv[1], "w"); - if (f == NULL) - { - perror(argv[1]); - exit (1); - } - genlegend (f); - genheader (f); - fclose(f); + if (argc == 2 && argv[1][0] == '-' && argv[1][1] == 'h') + genheader (); + else + gencode (); - f = fopen (argv[2], "w"); - if (f == NULL) - { - perror(argv[2]); - exit (1); - } - genlegend (f); - gencode (f); - fclose(f); + if (ferror (stdout) || fflush (stdout) || fclose (stdout)) + return FATAL_EXIT_CODE; - exit (0); + return SUCCESS_EXIT_CODE; }