blob: 2d2a638d837dc05e54b4f29d9cc9b8eeff4aa1e1 [file] [log] [blame]
# Copyright (C) 2009-2021 Free Software Foundation, Inc.
#
# 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/>.
# Generates compressed tables for types for i386 builtin functions.
function do_error(string) {
print FILENAME ":" FNR ": " string > "/dev/stderr"
errors = 1
}
function check_type(string) {
if (!(string in type_hash))
do_error("undefined type code " string)
}
# We can significantly reduce the size of the read-only tables
# by forcing the compiler to use a smaller implementation type
# for the enumerations.
function attribute_mode(count) {
# ??? Except that we get strange "comparison always false" warnings
# for comparisons between different elements of the enumeration.
# print "#ifdef __GNUC__"
# if (count < 256)
# print " __attribute__((__mode__(__QI__)))"
# else
# print " __attribute__((__mode__(__HI__)))"
# print "#endif"
}
BEGIN {
FS = "[() \t,]+"
prim_defs = 0
vect_defs = 0
ptr_defs = 0
cptr_defs = 0
func_defs = 0
func_args = 0
alias_defs = 0
}
# Skip blank lines or comments.
/^[ \t]*(#|$)/ {
next
}
$1 == "DEF_PRIMITIVE_TYPE" {
if (NF == 4) {
type_hash[$2] = 1
prim_name[prim_defs] = $2
prim_base[prim_defs] = $3
prim_defs++
} else
do_error("DEF_PRIMITIVE_TYPE expected 2 arguments")
next
}
$1 == "DEF_VECTOR_TYPE" {
if (NF == 4 || NF == 5) {
check_type($3)
type_hash[$2] = 1
vect_name[vect_defs] = $2
vect_base[vect_defs] = $3
vect_mode[vect_defs] = (NF == 5 ? $4 : $2)
vect_defs++
} else
do_error("DEF_VECTOR_TYPE expected 2 arguments")
next
}
$1 == "DEF_POINTER_TYPE" {
if (NF == 4) {
check_type($3)
type_hash[$2] = 1
ptr_name[ptr_defs] = $2
ptr_base[ptr_defs] = $3
ptr_defs++
} else if (NF == 5) {
check_type($3)
if ($4 == "CONST") {
type_hash[$2] = 1
cptr_name[cptr_defs] = $2
cptr_base[cptr_defs] = $3
cptr_defs++
} else
do_error("invalid qualifier \"" $4 "\"")
}
else
do_error("DEF_POINTER_TYPE expected 2 or 3 arguments")
next
}
$1 == "DEF_FUNCTION_TYPE" {
func_start[func_defs] = func_args
for (i = 2; i < NF; ++i) {
check_type($i)
func_types[func_args++] = $i
}
if (NF < 3)
do_error("DEF_FUNCTION_TYPE expected at least 1 argument")
else if (NF == 3)
name = $2 "_FTYPE_VOID"
else {
name = $2 "_FTYPE"
for (i = 3; i < NF; ++i)
name = name "_" $i
}
func_hash[name] = 1
func_name[func_defs++] = name
next
}
$1 == "DEF_FUNCTION_TYPE_ALIAS" {
if (NF == 4) {
if ($2 in func_hash) {
alias_base[alias_defs] = $2
alias_name[alias_defs] = $2 "_" $3
alias_defs++
} else
do_error("undefined function code " $2)
} else
do_error("DEF_FUNCTION_TYPE_ALIAS expected 2 arguments")
next
}
{
do_error("unknown directive \"" $1 "\"");
}
END {
if (errors)
exit 1
print "/* This file is auto-generated by i386-builtin-types.awk. */\n"
# This first enumeration contains all of the non-function types.
print "enum ix86_builtin_type {"
for (i = 0; i < prim_defs; ++i)
print " IX86_BT_" prim_name[i] ","
print " IX86_BT_LAST_PRIM = IX86_BT_" prim_name[i-1] ","
for (i = 0; i < vect_defs; ++i)
print " IX86_BT_" vect_name[i] ","
print " IX86_BT_LAST_VECT = IX86_BT_" vect_name[i-1] ","
for (i = 0; i < ptr_defs; ++i)
print " IX86_BT_" ptr_name[i] ","
print " IX86_BT_LAST_PTR = IX86_BT_" ptr_name[i-1] ","
for (i = 0; i < cptr_defs; ++i)
print " IX86_BT_" cptr_name[i] ","
print " IX86_BT_LAST_CPTR = IX86_BT_" cptr_name[i-1] "\n}"
attribute_mode(prim_defs + vect_defs + ptr_defs + cptr_defs)
print ";\n\n"
# We can't tabularize the initialization of the primitives, since
# at least one of them is created via a local variable. That's ok,
# just create a nice big macro to do all the work.
print "#define DEFINE_BUILTIN_PRIMITIVE_TYPES \\"
for (i = 0; i < prim_defs; ++i) {
printf " ix86_builtin_type_tab[(int)IX86_BT_" prim_name[i] \
"] = " prim_base[i]
if (i < prim_defs - 1)
print ", \\"
}
print "\n\n"
# The vector types are defined via two tables defining the real
# machine mode and the builtin primitive type. We use two tables
# rather than a structure to avoid structure padding and save space.
print "static const machine_mode ix86_builtin_type_vect_mode[] = {"
for (i = 0; i < vect_defs; ++i) {
if (i == 0)
printf " "
else if (i % 6 == 0)
printf ",\n "
else
printf ", "
printf "E_" vect_mode[i] "mode"
}
print "\n};\n\n"
print "static const enum ix86_builtin_type " \
"ix86_builtin_type_vect_base[] = {"
for (i = 0; i < vect_defs; ++i) {
if (i == 0)
printf " "
else if (i % 4 == 0)
printf ",\n "
else
printf ", "
printf "IX86_BT_" vect_base[i]
}
print "\n};\n\n"
# The pointer types are defined via a single table defining the
# builtin primitive type. The const-ness of the pointer is taken
# from the enumeration value > IX86_BT_LAST_PTR.
print "static const enum ix86_builtin_type " \
"ix86_builtin_type_ptr_base[] = {"
for (i = 0; i < ptr_defs; ++i) {
if (i == 0)
printf " "
else if (i % 4 == 0)
printf "\n "
printf " IX86_BT_" ptr_base[i] ","
}
print "\n /* pointer-to-constant defs start here */"
for (i = 0; i < cptr_defs; ++i) {
if (i == 0)
printf " "
else if (i % 4 == 0)
printf ",\n "
else
printf ", "
printf "IX86_BT_" cptr_base[i]
}
print "\n};\n\n"
# This second enumeration contains all of the function types.
print "enum ix86_builtin_func_type {"
for (i = 0; i < func_defs; ++i)
print " " func_name[i] ","
print " IX86_BT_LAST_FUNC = " func_name[i-1] ","
for (i = 0; i < alias_defs; ++i)
print " " alias_name[i] ","
print " IX86_BT_LAST_ALIAS = " alias_name[i-1] "\n}"
attribute_mode(func_defs + alias_defs)
print ";\n\n"
# The function types are defined via two tables. The first contains
# ranges consiting of the function's return type, followed by all of
# the function argument types. The ranges for all of the builtin
# functions are smooshed together in the same array. The second array
# contains, for each builtin, the index of the function's return type
# within the first array.
print "static const enum ix86_builtin_type ix86_builtin_func_args[] = {"
for (i = 0; i < func_args; ++i) {
if (i == 0)
printf " "
else if (i % 4 == 0)
printf ",\n "
else
printf ", "
printf "IX86_BT_" func_types[i]
}
print "\n};\n\n"
print "static const unsigned short ix86_builtin_func_start[] = {"
for (i = 0; i < func_defs; ++i) {
if (i == 0)
printf " "
else if (i % 10 == 0)
printf "\n "
printf " " func_start[i] ","
}
print " " func_args "\n};\n\n"
print "static const enum ix86_builtin_func_type " \
"ix86_builtin_func_alias_base[] = {"
for (i = 0; i < alias_defs; ++i) {
if (i == 0)
printf " "
else
printf ",\n "
printf alias_base[i]
}
print "\n};"
}