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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [optc-gen.awk] - Rev 433
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# Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010 # Free Software Foundation, Inc. # Contributed by Kelley Cook, June 2004. # Original code from Neil Booth, May 2003. # # This program 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. # # This program 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 this program; see the file COPYING3. If not see # <http://www.gnu.org/licenses/>. # This Awk script reads in the option records generated from # opt-gather.awk, combines the flags of duplicate options and generates a # C file. # # This program uses functions from opt-functions.awk # # Usage: awk -f opt-functions.awk -f optc-gen.awk \ # [-v header_name=header.h] < inputfile > options.c BEGIN { n_opts = 0 n_langs = 0 n_target_save = 0 quote = "\042" comma = "," FS=SUBSEP # Default the name of header created from opth-gen.awk to options.h if (header_name == "") header_name="options.h" } # Collect the text and flags of each option into an array { if ($1 == "Language") { langs[n_langs] = $2 n_langs++; } else if ($1 == "TargetSave") { # Make sure the declarations are put in source order target_save_decl[n_target_save] = $2 n_target_save++ } else { name = opt_args("Mask", $1) if (name == "") { opts[n_opts] = $1 flags[n_opts] = $2 help[n_opts] = $3 for (i = 4; i <= NF; i++) help[n_opts] = help[n_opts] " " $i n_opts++; } } } # Dump that array of options into a C file. END { print "/* This file is auto-generated by optc-gen.awk. */" print "" n_headers = split(header_name, headers, " ") for (i = 1; i <= n_headers; i++) print "#include " quote headers[i] quote print "#include " quote "opts.h" quote print "#include " quote "intl.h" quote print "" print "#ifdef GCC_DRIVER" print "int target_flags;" print "#else" print "#include " quote "flags.h" quote print "#include " quote "target.h" quote print "#endif /* GCC_DRIVER */" print "" have_save = 0; for (i = 0; i < n_opts; i++) { if (flag_set_p("Save", flags[i])) have_save = 1; name = var_name(flags[i]); if (name == "") continue; if (flag_set_p("VarExists", flags[i])) { # Need it for the gcc driver. if (name in var_seen) continue; init = "" gcc_driver = 1 } else { init = opt_args("Init", flags[i]) if (init != "") init = " = " init; else if (name in var_seen) continue; gcc_driver = 0 } if (gcc_driver == 1) print "#ifdef GCC_DRIVER" print "/* Set by -" opts[i] "." print " " help[i] " */" print var_type(flags[i]) name init ";" if (gcc_driver == 1) print "#endif /* GCC_DRIVER */" print "" var_seen[name] = 1; } print "" print "/* Local state variables. */" for (i = 0; i < n_opts; i++) { name = static_var(opts[i], flags[i]); if (name != "") print "static " var_type(flags[i]) name ";" } print "" print "const char * const lang_names[] =\n{" for (i = 0; i < n_langs; i++) { macros[i] = "CL_" langs[i] gsub( "[^A-Za-z0-9_]", "X", macros[i] ) s = substr(" ", length (macros[i])) print " " quote langs[i] quote "," } print " 0\n};\n" print "const unsigned int cl_options_count = N_OPTS;\n" print "const unsigned int cl_lang_count = " n_langs ";\n" print "const struct cl_option cl_options[] =\n{" j = 0 for (i = 0; i < n_opts; i++) { back_chain[i] = "N_OPTS"; indices[opts[i]] = j; # Combine the flags of identical switches. Switches # appear many times if they are handled by many front # ends, for example. while( i + 1 != n_opts && opts[i] == opts[i + 1] ) { flags[i + 1] = flags[i] " " flags[i + 1]; if (help[i + 1] == "") help[i + 1] = help[i] else if (help[i] != "" && help[i + 1] != help[i]) print "warning: multiple different help strings for " \ opts[i] ":\n\t" help[i] "\n\t" help[i + 1] \ | "cat 1>&2" i++; back_chain[i] = "N_OPTS"; indices[opts[i]] = j; } j++; } for (i = 0; i < n_opts; i++) { # With identical flags, pick only the last one. The # earlier loop ensured that it has all flags merged, # and a nonempty help text if one of the texts was nonempty. while( i + 1 != n_opts && opts[i] == opts[i + 1] ) { i++; } len = length (opts[i]); enum = "OPT_" opts[i] if (opts[i] == "finline-limit=" || opts[i] == "Wlarger-than=" \ || opts[i] == "ftemplate-depth=") enum = enum "eq" gsub ("[^A-Za-z0-9]", "_", enum) # If this switch takes joined arguments, back-chain all # subsequent switches to it for which it is a prefix. If # a later switch S is a longer prefix of a switch T, T # will be back-chained to S in a later iteration of this # for() loop, which is what we want. if (flag_set_p("Joined.*", flags[i])) { for (j = i + 1; j < n_opts; j++) { if (substr (opts[j], 1, len) != opts[i]) break; back_chain[j] = enum; } } s = substr(" ", length (opts[i])) if (i + 1 == n_opts) comma = "" if (help[i] == "") hlp = "0" else hlp = quote help[i] quote; neg = opt_args("Negative", flags[i]); if (neg != "") idx = indices[neg] else { if (flag_set_p("RejectNegative", flags[i])) idx = -1; else { if (opts[i] ~ "^[Wfm]") idx = indices[opts[i]]; else idx = -1; } } # Split the printf after %u to work around an ia64-hp-hpux11.23 # awk bug. printf(" { %c-%s%c,\n %s,\n %s, %u,", quote, opts[i], quote, hlp, back_chain[i], len) printf(" %d,\n", idx) condition = opt_args("Condition", flags[i]) cl_flags = switch_flags(flags[i]) if (condition != "") printf("#if %s\n" \ " %s,\n" \ "#else\n" \ " CL_DISABLED,\n" \ "#endif\n", condition, cl_flags, cl_flags) else printf(" %s,\n", cl_flags) printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]), var_set(flags[i]), comma) } print "};" print ""; print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)" print ""; print "/* Save optimization variables into a structure. */" print "void"; print "cl_optimization_save (struct cl_optimization *ptr)"; print "{"; n_opt_char = 2; n_opt_short = 0; n_opt_int = 0; n_opt_other = 0; var_opt_char[0] = "optimize"; var_opt_char[1] = "optimize_size"; var_opt_range["optimize"] = "0, 255"; var_opt_range["optimize_size"] = "0, 255"; # Sort by size to mimic how the structure is laid out to be friendlier to the # cache. for (i = 0; i < n_opts; i++) { if (flag_set_p("Optimization", flags[i])) { name = var_name(flags[i]) if(name == "") continue; if(name in var_opt_seen) continue; var_opt_seen[name]++; otype = var_type_struct(flags[i]); if (otype ~ "^((un)?signed +)?int *$") var_opt_int[n_opt_int++] = name; else if (otype ~ "^((un)?signed +)?short *$") var_opt_short[n_opt_short++] = name; else if (otype ~ "^((un)?signed +)?char *$") { var_opt_char[n_opt_char++] = name; if (otype ~ "^unsigned +char *$") var_opt_range[name] = "0, 255" else if (otype ~ "^signed +char *$") var_opt_range[name] = "-128, 127" } else var_opt_other[n_opt_other++] = name; } } for (i = 0; i < n_opt_char; i++) { name = var_opt_char[i]; if (var_opt_range[name] != "") print " gcc_assert (IN_RANGE (" name ", " var_opt_range[name] "));"; } print ""; for (i = 0; i < n_opt_other; i++) { print " ptr->" var_opt_other[i] " = " var_opt_other[i] ";"; } for (i = 0; i < n_opt_int; i++) { print " ptr->" var_opt_int[i] " = " var_opt_int[i] ";"; } for (i = 0; i < n_opt_short; i++) { print " ptr->" var_opt_short[i] " = " var_opt_short[i] ";"; } for (i = 0; i < n_opt_char; i++) { print " ptr->" var_opt_char[i] " = " var_opt_char[i] ";"; } print "}"; print ""; print "/* Restore optimization options from a structure. */"; print "void"; print "cl_optimization_restore (struct cl_optimization *ptr)"; print "{"; for (i = 0; i < n_opt_other; i++) { print " " var_opt_other[i] " = ptr->" var_opt_other[i] ";"; } for (i = 0; i < n_opt_int; i++) { print " " var_opt_int[i] " = ptr->" var_opt_int[i] ";"; } for (i = 0; i < n_opt_short; i++) { print " " var_opt_short[i] " = ptr->" var_opt_short[i] ";"; } for (i = 0; i < n_opt_char; i++) { print " " var_opt_char[i] " = ptr->" var_opt_char[i] ";"; } print " targetm.override_options_after_change ();"; print "}"; print ""; print "/* Print optimization options from a structure. */"; print "void"; print "cl_optimization_print (FILE *file,"; print " int indent_to,"; print " struct cl_optimization *ptr)"; print "{"; print " fputs (\"\\n\", file);"; for (i = 0; i < n_opt_other; i++) { print " if (ptr->" var_opt_other[i] ")"; print " fprintf (file, \"%*s%s (0x%lx)\\n\","; print " indent_to, \"\","; print " \"" var_opt_other[i] "\","; print " (unsigned long)ptr->" var_opt_other[i] ");"; print ""; } for (i = 0; i < n_opt_int; i++) { print " if (ptr->" var_opt_int[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent_to, \"\","; print " \"" var_opt_int[i] "\","; print " ptr->" var_opt_int[i] ");"; print ""; } for (i = 0; i < n_opt_short; i++) { print " if (ptr->" var_opt_short[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent_to, \"\","; print " \"" var_opt_short[i] "\","; print " ptr->" var_opt_short[i] ");"; print ""; } for (i = 0; i < n_opt_char; i++) { print " if (ptr->" var_opt_char[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent_to, \"\","; print " \"" var_opt_char[i] "\","; print " ptr->" var_opt_char[i] ");"; print ""; } print "}"; print ""; print "/* Save selected option variables into a structure. */" print "void"; print "cl_target_option_save (struct cl_target_option *ptr)"; print "{"; n_target_char = 0; n_target_short = 0; n_target_int = 0; n_target_other = 0; if (have_save) { for (i = 0; i < n_opts; i++) { if (flag_set_p("Save", flags[i])) { name = var_name(flags[i]) if(name == "") name = "target_flags"; if(name in var_save_seen) continue; var_save_seen[name]++; otype = var_type_struct(flags[i]) if (otype ~ "^((un)?signed +)?int *$") var_target_int[n_target_int++] = name; else if (otype ~ "^((un)?signed +)?short *$") var_target_short[n_target_short++] = name; else if (otype ~ "^((un)?signed +)?char *$") { var_target_char[n_target_char++] = name; if (otype ~ "^unsigned +char *$") var_target_range[name] = "0, 255" else if (otype ~ "^signed +char *$") var_target_range[name] = "-128, 127" } else var_target_other[n_target_other++] = name; } } } else { var_target_int[n_target_int++] = "target_flags"; } have_assert = 0; for (i = 0; i < n_target_char; i++) { name = var_target_char[i]; if (var_target_range[name] != "") { have_assert = 1; print " gcc_assert (IN_RANGE (" name ", " var_target_range[name] "));"; } } if (have_assert) print ""; print " if (targetm.target_option.save)"; print " targetm.target_option.save (ptr);"; print ""; for (i = 0; i < n_target_other; i++) { print " ptr->" var_target_other[i] " = " var_target_other[i] ";"; } for (i = 0; i < n_target_int; i++) { print " ptr->" var_target_int[i] " = " var_target_int[i] ";"; } for (i = 0; i < n_target_short; i++) { print " ptr->" var_target_short[i] " = " var_target_short[i] ";"; } for (i = 0; i < n_target_char; i++) { print " ptr->" var_target_char[i] " = " var_target_char[i] ";"; } print "}"; print ""; print "/* Restore selected current options from a structure. */"; print "void"; print "cl_target_option_restore (struct cl_target_option *ptr)"; print "{"; for (i = 0; i < n_target_other; i++) { print " " var_target_other[i] " = ptr->" var_target_other[i] ";"; } for (i = 0; i < n_target_int; i++) { print " " var_target_int[i] " = ptr->" var_target_int[i] ";"; } for (i = 0; i < n_target_short; i++) { print " " var_target_short[i] " = ptr->" var_target_short[i] ";"; } for (i = 0; i < n_target_char; i++) { print " " var_target_char[i] " = ptr->" var_target_char[i] ";"; } # This must occur after the normal variables in case the code depends on those # variables. print ""; print " if (targetm.target_option.restore)"; print " targetm.target_option.restore (ptr);"; print "}"; print ""; print "/* Print optimization options from a structure. */"; print "void"; print "cl_target_option_print (FILE *file,"; print " int indent,"; print " struct cl_target_option *ptr)"; print "{"; print " fputs (\"\\n\", file);"; for (i = 0; i < n_target_other; i++) { print " if (ptr->" var_target_other[i] ")"; print " fprintf (file, \"%*s%s (0x%lx)\\n\","; print " indent, \"\","; print " \"" var_target_other[i] "\","; print " (unsigned long)ptr->" var_target_other[i] ");"; print ""; } for (i = 0; i < n_target_int; i++) { print " if (ptr->" var_target_int[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent, \"\","; print " \"" var_target_int[i] "\","; print " ptr->" var_target_int[i] ");"; print ""; } for (i = 0; i < n_target_short; i++) { print " if (ptr->" var_target_short[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent, \"\","; print " \"" var_target_short[i] "\","; print " ptr->" var_target_short[i] ");"; print ""; } for (i = 0; i < n_target_char; i++) { print " if (ptr->" var_target_char[i] ")"; print " fprintf (file, \"%*s%s (0x%x)\\n\","; print " indent, \"\","; print " \"" var_target_char[i] "\","; print " ptr->" var_target_char[i] ");"; print ""; } print ""; print " if (targetm.target_option.print)"; print " targetm.target_option.print (file, indent, ptr);"; print "}"; print "#endif"; }
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