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