[thirdparty/gcc.git] / gcc / opt-functions.awk

#  Copyright (C) 2003-2022 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/>.

# Some common subroutines for use by opt[ch]-gen.awk.

# Define some helpful character classes, for portability.
BEGIN {
	lower = "abcdefghijklmnopqrstuvwxyz"
	upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	digit = "0123456789"
	alnum = lower "" upper "" digit
}

# Return nonzero if FLAGS contains a flag matching REGEX.
function flag_set_p(regex, flags)
{
    # Ignore the arguments of flags with arguments.
    gsub ("\\([^)]+\\)", "", flags);
    return (" " flags " ") ~ (" " regex " ")
}

# Return STRING if FLAGS contains a flag matching regexp REGEX,
# otherwise return the empty string.
function test_flag(regex, flags, string)
{
	if (flag_set_p(regex, flags))
		return string
	return ""
}

# Return a field initializer, with trailing comma, for a field that is
# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
function flag_init(regex, flags)
{
	if (flag_set_p(regex, flags))
		return "1 /* " regex " */, "
	else
		return "0, "
}

# If FLAGS contains a "NAME(...argument...)" flag, return the value
# of the argument.  Return the empty string otherwise.
function opt_args(name, flags)
{
	flags = " " flags
	if (flags !~ " " name "\\(")
		return ""
	sub(".* " name "\\(", "", flags)
	if (flags ~ "^[{]")
	{
		sub ("^[{]", "", flags)
		sub ("}\\).*", "", flags)
	}
	else
		sub("\\).*", "", flags)

	return flags
}

# If FLAGS contains a "NAME(...argument...)" flag, return the value
# of the argument.  Print error message otherwise.
function opt_args_non_empty(name, flags, description)
{
	args = opt_args(name, flags)
	if (args == "")
		print "#error Empty option argument '" name "' during parsing of: " flags
	return args
}

# Return the number of comma-separated element of S.
function n_args(s)
{
	n = 1
	while (s ~ ",") {
		n++
		sub("[^,]*, *", "", s)
	}
	return n
}

# Return the Nth comma-separated element of S.  Return the empty string
# if S does not contain N elements.
function nth_arg(n, s)
{
	while (n-- > 0) {
		if (s !~ ",")
			return ""
		sub("[^,]*, *", "", s)
	}
	sub(",.*", "", s)
	return s
}

# Return a bitmask of CL_* values for option flags FLAGS.
function switch_flags (flags)
{
	result = "0"
	for (j = 0; j < n_langs; j++) {
		regex = langs[j]
		gsub ( "\\+", "\\+", regex )
		result = result test_flag(regex, flags, " | " macros[j])
	}
	result = result \
	  test_flag("Common", flags, " | CL_COMMON") \
	  test_flag("Target", flags, " | CL_TARGET") \
	  test_flag("PchIgnore", flags, " | CL_PCH_IGNORE") \
	  test_flag("Driver", flags, " | CL_DRIVER") \
	  test_flag("Joined", flags, " | CL_JOINED") \
	  test_flag("JoinedOrMissing", flags, " | CL_JOINED") \
	  test_flag("Separate", flags, " | CL_SEPARATE") \
	  test_flag("Undocumented", flags,  " | CL_UNDOCUMENTED") \
	  test_flag("NoDWARFRecord", flags,  " | CL_NO_DWARF_RECORD") \
	  test_flag("Warning", flags,  " | CL_WARNING") \
	  test_flag("(Optimization|PerFunction)", flags,  " | CL_OPTIMIZATION") \
	  test_flag("Param", flags,  " | CL_PARAMS")
	sub( "^0 \\| ", "", result )
	return result
}

# Return bit-field initializers for option flags FLAGS.
function switch_bit_fields (flags)
{
	uinteger_flag = ""
	vn = var_name(flags);
	if (host_wide_int[vn] == "yes")
		hwi = "Host_Wide_Int"
	else if (flag_set_p("Host_Wide_Int", flags)) {
		hwi = "Host_Wide_Int"
		uinteger_flag = flag_init("UInteger", flags)
	}
	else
		hwi = ""
	result = ""
	sep_args = opt_args("Args", flags)
	if (sep_args == "")
		sep_args = 0
	else
		sep_args--
	result = result sep_args ", "

	if (uinteger_flag == "")
		uinteger_flag = flag_init("UInteger", flags)

	hwi_flag = flag_init("Host_Wide_Int", hwi)
	byte_size_flag = flag_init("ByteSize", flags)

	if (substr(byte_size_flag, 1, 1) != "0"	\
	    && substr(uinteger_flag, 1, 1) == "0" \
	    && substr(hwi_flag, 1, 1) == "0")
	  print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix"

	# The following flags need to be in the same order as
	# the corresponding members of struct cl_option defined
	# in gcc/opts.h.
	result = result \
	  flag_init("SeparateAlias", flags) \
	  flag_init("NegativeAlias", flags) \
	  flag_init("NoDriverArg", flags) \
	  flag_init("RejectDriver", flags) \
	  flag_init("RejectNegative", flags) \
	  flag_init("JoinedOrMissing", flags) \
	  uinteger_flag \
	  hwi_flag \
	  flag_init("ToLower", flags) \
	  byte_size_flag

	if (flag_set_p("Report", flags))
	    print "#error Report option property is dropped"

	sub(", $", "", result)
	return result
}

# If FLAGS includes a Var flag, return the name of the variable it specifies.
# Return the empty string otherwise.
function var_name(flags)
{
	return nth_arg(0, opt_args("Var", flags))
}

# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable. 
# Return the empty string otherwise.
function host_wide_int_var_name(flags)
{
	split (flags, array, "[ \t]+")
	if (array[1] == "HOST_WIDE_INT")
		return array[2]
	else
		return ""
}

# Return true if the option described by FLAGS has a globally-visible state.
function global_state_p(flags)
{
	return (var_name(flags) != "" \
		|| opt_args("Mask", flags) != "" \
		|| opt_args("InverseMask", flags) != "")
}

# Return true if the option described by FLAGS must have some state
# associated with it.
function needs_state_p(flags)
{
	return (flag_set_p("Target", flags) \
		&& !flag_set_p("Alias.*", flags) \
		&& !flag_set_p("Ignore", flags))
}

# If FLAGS describes an option that needs state without a public
# variable name, return the name of that field, minus the initial
# "x_", otherwise return "".  NAME is the name of the option.
function static_var(name, flags)
{
	if (global_state_p(flags) || !needs_state_p(flags))
		return ""
	gsub ("[^" alnum "]", "_", name)
	return "VAR_" name
}

# Return the type of variable that should be associated with the given flags.
function var_type(flags)
{
	if (flag_set_p("Defer", flags))
		return "void *"
	else if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		return enum_type[en] " "
	}
	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
		return "int "
	else if (flag_set_p("Host_Wide_Int", flags))
		return "HOST_WIDE_INT "
	else if (flag_set_p("UInteger", flags))
		return "int "
	else
		return "const char *"
}

# Return the type of variable that should be associated with the given flags
# for use within a structure.  Simple variables are changed to signed char
# type instead of int to save space.
function var_type_struct(flags)
{
	if (flag_set_p("UInteger", flags)) {
		if (host_wide_int[var_name(flags)] == "yes")
			return "HOST_WIDE_INT ";
		if (flag_set_p("ByteSize", flags))
			return "HOST_WIDE_INT "
	  return "int "
	}
	else if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		return enum_type[en] " "
	}
	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
		if (flag_set_p(".*Mask.*", flags)) {
			if (host_wide_int[var_name(flags)] == "yes")
				return "HOST_WIDE_INT "
			else
				return "/* - */ int "
		}
		else
			return "signed char "
	}
	else
		return "const char *"
}

# Given that an option has flags FLAGS, return an initializer for the
# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
function var_set(flags)
{
	if (flag_set_p("Defer", flags))
		return "0, CLVC_DEFER, 0"
	s = nth_arg(1, opt_args("Var", flags))
	if (s != "")
		return "0, CLVC_EQUAL, " s
	s = opt_args("Mask", flags);
	if (s != "") {
		vn = var_name(flags);
		if (vn)
			return "0, CLVC_BIT_SET, OPTION_MASK_" s
		else
			return "0, CLVC_BIT_SET, MASK_" s
	}
	s = nth_arg(0, opt_args("InverseMask", flags));
	if (s != "") {
		vn = var_name(flags);
		if (vn)
			return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
		else
			return "0, CLVC_BIT_CLEAR, MASK_" s
	}
	if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		if (flag_set_p("EnumSet", flags))
			return enum_index[en] ", CLVC_ENUM, CLEV_SET"
		else if (flag_set_p("EnumBitSet", flags))
			return enum_index[en] ", CLVC_ENUM, CLEV_BITSET"
		else
			return enum_index[en] ", CLVC_ENUM, CLEV_NORMAL"
	}
	if (var_type(flags) == "const char *")
		return "0, CLVC_STRING, 0"
	if (flag_set_p("ByteSize", flags))
		return "0, CLVC_SIZE, 0"
	return "0, CLVC_INTEGER, 0"
}

# Given that an option called NAME has flags FLAGS, return an initializer
# for the "flag_var" field of its cl_options[] entry.
function var_ref(name, flags)
{
	name = var_name(flags) static_var(name, flags)
	if (name != "")
		return "offsetof (struct gcc_options, x_" name ")"
	if (opt_args("Mask", flags) != "")
		return "offsetof (struct gcc_options, x_target_flags)"
	if (opt_args("InverseMask", flags) != "")
		return "offsetof (struct gcc_options, x_target_flags)"
	return "(unsigned short) -1"
}

# Given the option called NAME return a sanitized version of its name.
function opt_sanitized_name(name)
{
	gsub ("[^" alnum "]", "_", name)
	return name
}

# Given the option called NAME return the appropriate enum for it.
function opt_enum(name)
{
	return "OPT_" opt_sanitized_name(name)
}

# Given the language called NAME return a sanitized version of its name.
function lang_sanitized_name(name)
{
    gsub( "[^" alnum "_]", "X", name )
    return name
}

# Search for a valid var_name among all OPTS equal to option NAME.
# If not found, return "".
function search_var_name(name, opt_numbers, opts, flags, n_opts)
{
    opt_var_name = var_name(flags[opt_numbers[name]]);
    if (opt_var_name != "") {
        return opt_var_name;
    }
    for (k = 0; k < n_opts; k++) {
        if (opts[k] == name && var_name(flags[k]) != "") {
            return var_name(flags[k]);
        }
    }
    return ""
}

function integer_range_info(range_option, init, option, uinteger_used)
{
    if (range_option != "") {
	ival = init + 0;
	start = nth_arg(0, range_option) + 0;
	end = nth_arg(1, range_option) + 0;
	if (init != "" && init != "-1" && (ival < start || ival > end))
	  print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
	if (uinteger_used && start < 0)
	  print "#error '" option"': negative IntegerRange (" start ", " end ") cannot be combined with UInteger"
	return start ", " end
    }
    else
        return "-1, -1"
}
Commit	Line	Data
7adcbafe	1	# Copyright (C) 2003-2022 Free Software Foundation, Inc.
776dc15d KC	2	# Contributed by Kelley Cook, June 2004.
	3	# Original code from Neil Booth, May 2003.
	4	#
	5	# This program is free software; you can redistribute it and/or modify it
	6	# under the terms of the GNU General Public License as published by the
9dcd6f09	7	# Free Software Foundation; either version 3, or (at your option) any
776dc15d KC	8	# later version.
	9	#
	10	# This program is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	# GNU General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License
9dcd6f09 NC	16	# along with this program; see the file COPYING3. If not see
9dcd6f09 NC	17	# <http://www.gnu.org/licenses/>.
776dc15d KC	18
	19	# Some common subroutines for use by opt[ch]-gen.awk.
	20
e4590d63 RW	21	# Define some helpful character classes, for portability.
	22	BEGIN {
	23	lower = "abcdefghijklmnopqrstuvwxyz"
	24	upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	25	digit = "0123456789"
	26	alnum = lower "" upper "" digit
	27	}
	28
a56a0779 RS	29	# Return nonzero if FLAGS contains a flag matching REGEX.
	30	function flag_set_p(regex, flags)
	31	{
f2bc201f MLI	32	# Ignore the arguments of flags with arguments.
	33	gsub ("\\([^)]+\\)", "", flags);
	34	return (" " flags " ") ~ (" " regex " ")
a56a0779 RS	35	}
	36
	37	# Return STRING if FLAGS contains a flag matching regexp REGEX,
	38	# otherwise return the empty string.
	39	function test_flag(regex, flags, string)
	40	{
	41	if (flag_set_p(regex, flags))
	42	return string
	43	return ""
	44	}
	45
300d83d9 JM	46	# Return a field initializer, with trailing comma, for a field that is
	47	# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
	48	function flag_init(regex, flags)
	49	{
	50	if (flag_set_p(regex, flags))
	51	return "1 /* " regex " */, "
	52	else
	53	return "0, "
	54	}
	55
75685792 RS	56	# If FLAGS contains a "NAME(...argument...)" flag, return the value
	57	# of the argument. Return the empty string otherwise.
	58	function opt_args(name, flags)
	59	{
	60	flags = " " flags
	61	if (flags !~ " " name "\\(")
	62	return ""
	63	sub(".* " name "\\(", "", flags)
27ec2266	64	if (flags ~ "^[{]")
88c2fd3d	65	{
27ec2266 JJ	66	sub ("^[{]", "", flags)
27ec2266 JJ	67	sub ("}\\).*", "", flags)
88c2fd3d DK	68	}
	69	else
	70	sub("\\).*", "", flags)
75685792 RS	71
	72	return flags
	73	}
	74
2d8a60a6 ML	75	# If FLAGS contains a "NAME(...argument...)" flag, return the value
	76	# of the argument. Print error message otherwise.
	77	function opt_args_non_empty(name, flags, description)
	78	{
	79	args = opt_args(name, flags)
	80	if (args == "")
	81	print "#error Empty option argument '" name "' during parsing of: " flags
	82	return args
	83	}
	84
d8e91994 TS	85	# Return the number of comma-separated element of S.
	86	function n_args(s)
	87	{
	88	n = 1
	89	while (s ~ ",") {
	90	n++
	91	sub("[^,], ", "", s)
	92	}
	93	return n
	94	}
	95
75685792 RS	96	# Return the Nth comma-separated element of S. Return the empty string
	97	# if S does not contain N elements.
	98	function nth_arg(n, s)
	99	{
	100	while (n-- > 0) {
	101	if (s !~ ",")
	102	return ""
	103	sub("[^,], ", "", s)
	104	}
	105	sub(",.*", "", s)
	106	return s
	107	}
	108
	109	# Return a bitmask of CL_* values for option flags FLAGS.
776dc15d KC	110	function switch_flags (flags)
776dc15d KC	111	{
776dc15d KC	112	result = "0"
776dc15d KC	113	for (j = 0; j < n_langs; j++) {
a56a0779	114	regex = langs[j]
776dc15d	115	gsub ( "\\+", "\\+", regex )
a56a0779	116	result = result test_flag(regex, flags, " \| " macros[j])
776dc15d	117	}
a56a0779 RS	118	result = result \
	119	test_flag("Common", flags, " \| CL_COMMON") \
	120	test_flag("Target", flags, " \| CL_TARGET") \
212bfe71	121	test_flag("PchIgnore", flags, " \| CL_PCH_IGNORE") \
603349bf	122	test_flag("Driver", flags, " \| CL_DRIVER") \
a56a0779	123	test_flag("Joined", flags, " \| CL_JOINED") \
300d83d9	124	test_flag("JoinedOrMissing", flags, " \| CL_JOINED") \
a56a0779	125	test_flag("Separate", flags, " \| CL_SEPARATE") \
a56a0779	126	test_flag("Undocumented", flags, " \| CL_UNDOCUMENTED") \
77ee7190	127	test_flag("NoDWARFRecord", flags, " \| CL_NO_DWARF_RECORD") \
c662432e	128	test_flag("Warning", flags, " \| CL_WARNING") \
76c26af9 ML	129	test_flag("(Optimization\|PerFunction)", flags, " \| CL_OPTIMIZATION") \
76c26af9 ML	130	test_flag("Param", flags, " \| CL_PARAMS")
300d83d9 JM	131	sub( "^0 \\\| ", "", result )
	132	return result
	133	}
	134
	135	# Return bit-field initializers for option flags FLAGS.
	136	function switch_bit_fields (flags)
	137	{
00abf86c	138	uinteger_flag = ""
99114bbf L	139	vn = var_name(flags);
	140	if (host_wide_int[vn] == "yes")
	141	hwi = "Host_Wide_Int"
00abf86c MS	142	else if (flag_set_p("Host_Wide_Int", flags)) {
	143	hwi = "Host_Wide_Int"
	144	uinteger_flag = flag_init("UInteger", flags)
	145	}
99114bbf L	146	else
99114bbf L	147	hwi = ""
300d83d9	148	result = ""
c243beb0	149	sep_args = opt_args("Args", flags)
300d83d9 JM	150	if (sep_args == "")
	151	sep_args = 0
	152	else
c243beb0	153	sep_args--
300d83d9 JM	154	result = result sep_args ", "
300d83d9 JM	155
00abf86c MS	156	if (uinteger_flag == "")
	157	uinteger_flag = flag_init("UInteger", flags)
	158
	159	hwi_flag = flag_init("Host_Wide_Int", hwi)
	160	byte_size_flag = flag_init("ByteSize", flags)
	161
	162	if (substr(byte_size_flag, 1, 1) != "0" \
	163	&& substr(uinteger_flag, 1, 1) == "0" \
	164	&& substr(hwi_flag, 1, 1) == "0")
	165	print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix"
	166
	167	# The following flags need to be in the same order as
	168	# the corresponding members of struct cl_option defined
	169	# in gcc/opts.h.
300d83d9 JM	170	result = result \
	171	flag_init("SeparateAlias", flags) \
	172	flag_init("NegativeAlias", flags) \
	173	flag_init("NoDriverArg", flags) \
	174	flag_init("RejectDriver", flags) \
	175	flag_init("RejectNegative", flags) \
	176	flag_init("JoinedOrMissing", flags) \
00abf86c MS	177	uinteger_flag \
00abf86c MS	178	hwi_flag \
413519ae	179	flag_init("ToLower", flags) \
00abf86c	180	byte_size_flag
300d83d9	181
5137d1ae ML	182	if (flag_set_p("Report", flags))
	183	print "#error Report option property is dropped"
	184
300d83d9	185	sub(", $", "", result)
776dc15d KC	186	return result
	187	}
	188
75685792 RS	189	# If FLAGS includes a Var flag, return the name of the variable it specifies.
75685792 RS	190	# Return the empty string otherwise.
776dc15d KC	191	function var_name(flags)
776dc15d KC	192	{
75685792	193	return nth_arg(0, opt_args("Var", flags))
776dc15d	194	}
75685792	195
99114bbf L	196	# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable.
	197	# Return the empty string otherwise.
	198	function host_wide_int_var_name(flags)
	199	{
	200	split (flags, array, "[ \t]+")
	201	if (array[1] == "HOST_WIDE_INT")
	202	return array[2]
	203	else
	204	return ""
	205	}
	206
ee133b69 RS	207	# Return true if the option described by FLAGS has a globally-visible state.
	208	function global_state_p(flags)
	209	{
	210	return (var_name(flags) != "" \
	211	\|\| opt_args("Mask", flags) != "" \
	212	\|\| opt_args("InverseMask", flags) != "")
	213	}
	214
	215	# Return true if the option described by FLAGS must have some state
	216	# associated with it.
	217	function needs_state_p(flags)
	218	{
2d2bd949 JM	219	return (flag_set_p("Target", flags) \
	220	&& !flag_set_p("Alias.*", flags) \
	221	&& !flag_set_p("Ignore", flags))
ee133b69 RS	222	}
ee133b69 RS	223
46625112 JM	224	# If FLAGS describes an option that needs state without a public
	225	# variable name, return the name of that field, minus the initial
	226	# "x_", otherwise return "". NAME is the name of the option.
ee133b69 RS	227	function static_var(name, flags)
	228	{
	229	if (global_state_p(flags) \|\| !needs_state_p(flags))
	230	return ""
e4590d63	231	gsub ("[^" alnum "]", "_", name)
ee133b69 RS	232	return "VAR_" name
	233	}
	234
55bea00a RS	235	# Return the type of variable that should be associated with the given flags.
	236	function var_type(flags)
	237	{
21bf1558 JM	238	if (flag_set_p("Defer", flags))
21bf1558 JM	239	return "void *"
e6d4b984 JM	240	else if (flag_set_p("Enum.*", flags)) {
	241	en = opt_args("Enum", flags);
	242	return enum_type[en] " "
	243	}
21bf1558	244	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
55bea00a	245	return "int "
00abf86c MS	246	else if (flag_set_p("Host_Wide_Int", flags))
00abf86c MS	247	return "HOST_WIDE_INT "
55bea00a RS	248	else if (flag_set_p("UInteger", flags))
	249	return "int "
	250	else
	251	return "const char *"
	252	}
	253
ab442df7	254	# Return the type of variable that should be associated with the given flags
a3f410a2	255	# for use within a structure. Simple variables are changed to signed char
ab442df7 MM	256	# type instead of int to save space.
	257	function var_type_struct(flags)
	258	{
00abf86c MS	259	if (flag_set_p("UInteger", flags)) {
	260	if (host_wide_int[var_name(flags)] == "yes")
	261	return "HOST_WIDE_INT ";
	262	if (flag_set_p("ByteSize", flags))
	263	return "HOST_WIDE_INT "
	264	return "int "
	265	}
c860fe8c JM	266	else if (flag_set_p("Enum.*", flags)) {
	267	en = opt_args("Enum", flags);
	268	return enum_type[en] " "
	269	}
603349bf	270	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
99114bbf L	271	if (flag_set_p(".Mask.", flags)) {
	272	if (host_wide_int[var_name(flags)] == "yes")
	273	return "HOST_WIDE_INT "
	274	else
00abf86c	275	return "/* - */ int "
99114bbf	276	}
ab442df7	277	else
a3f410a2	278	return "signed char "
ab442df7 MM	279	}
	280	else
	281	return "const char *"
	282	}
	283
75685792	284	# Given that an option has flags FLAGS, return an initializer for the
e6d4b984	285	# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
776dc15d KC	286	function var_set(flags)
776dc15d KC	287	{
21bf1558	288	if (flag_set_p("Defer", flags))
e6d4b984	289	return "0, CLVC_DEFER, 0"
75685792 RS	290	s = nth_arg(1, opt_args("Var", flags))
75685792 RS	291	if (s != "")
e6d4b984	292	return "0, CLVC_EQUAL, " s
75685792	293	s = opt_args("Mask", flags);
a45505d8 DD	294	if (s != "") {
	295	vn = var_name(flags);
	296	if (vn)
e6d4b984	297	return "0, CLVC_BIT_SET, OPTION_MASK_" s
a45505d8	298	else
e6d4b984	299	return "0, CLVC_BIT_SET, MASK_" s
a45505d8	300	}
75685792	301	s = nth_arg(0, opt_args("InverseMask", flags));
c1630cc5 DE	302	if (s != "") {
	303	vn = var_name(flags);
	304	if (vn)
e6d4b984	305	return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
55bea00a	306	else
e6d4b984 JM	307	return "0, CLVC_BIT_CLEAR, MASK_" s
	308	}
	309	if (flag_set_p("Enum.*", flags)) {
	310	en = opt_args("Enum", flags);
385196ad	311	if (flag_set_p("EnumSet", flags))
0ebb09f5 JJ	312	return enum_index[en] ", CLVC_ENUM, CLEV_SET"
	313	else if (flag_set_p("EnumBitSet", flags))
	314	return enum_index[en] ", CLVC_ENUM, CLEV_BITSET"
385196ad	315	else
0ebb09f5	316	return enum_index[en] ", CLVC_ENUM, CLEV_NORMAL"
c1630cc5	317	}
55bea00a	318	if (var_type(flags) == "const char *")
e6d4b984	319	return "0, CLVC_STRING, 0"
00abf86c MS	320	if (flag_set_p("ByteSize", flags))
00abf86c MS	321	return "0, CLVC_SIZE, 0"
8e836af6	322	return "0, CLVC_INTEGER, 0"
776dc15d	323	}
75685792	324
ee133b69 RS	325	# Given that an option called NAME has flags FLAGS, return an initializer
	326	# for the "flag_var" field of its cl_options[] entry.
	327	function var_ref(name, flags)
776dc15d	328	{
ee133b69	329	name = var_name(flags) static_var(name, flags)
75685792	330	if (name != "")
46625112	331	return "offsetof (struct gcc_options, x_" name ")"
75685792	332	if (opt_args("Mask", flags) != "")
46625112	333	return "offsetof (struct gcc_options, x_target_flags)"
75685792	334	if (opt_args("InverseMask", flags) != "")
46625112	335	return "offsetof (struct gcc_options, x_target_flags)"
f6b3ca5a	336	return "(unsigned short) -1"
776dc15d	337	}
9db94baa MLI	338
	339	# Given the option called NAME return a sanitized version of its name.
	340	function opt_sanitized_name(name)
	341	{
e4590d63	342	gsub ("[^" alnum "]", "_", name)
9db94baa MLI	343	return name
	344	}
	345
	346	# Given the option called NAME return the appropriate enum for it.
	347	function opt_enum(name)
	348	{
	349	return "OPT_" opt_sanitized_name(name)
	350	}
f2bc201f MLI	351
	352	# Given the language called NAME return a sanitized version of its name.
	353	function lang_sanitized_name(name)
	354	{
	355	gsub( "[^" alnum "_]", "X", name )
	356	return name
	357	}
d919140b MLI	358
	359	# Search for a valid var_name among all OPTS equal to option NAME.
	360	# If not found, return "".
	361	function search_var_name(name, opt_numbers, opts, flags, n_opts)
	362	{
	363	opt_var_name = var_name(flags[opt_numbers[name]]);
	364	if (opt_var_name != "") {
	365	return opt_var_name;
	366	}
	367	for (k = 0; k < n_opts; k++) {
	368	if (opts[k] == name && var_name(flags[k]) != "") {
	369	return var_name(flags[k]);
	370	}
	371	}
	372	return ""
	373	}
0829c7f7	374
679652a7	375	function integer_range_info(range_option, init, option, uinteger_used)
63010089 ML	376	{
63010089 ML	377	if (range_option != "") {
4bc8aadf JM	378	ival = init + 0;
	379	start = nth_arg(0, range_option) + 0;
	380	end = nth_arg(1, range_option) + 0;
	381	if (init != "" && init != "-1" && (ival < start \|\| ival > end))
e88a9384	382	print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
679652a7 ML	383	if (uinteger_used && start < 0)
679652a7 ML	384	print "#error '" option"': negative IntegerRange (" start ", " end ") cannot be combined with UInteger"
63010089 ML	385	return start ", " end
	386	}
	387	else
	388	return "-1, -1"
	389	}