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#!/bin/sh
#
# Copyright (C) 2014-2018 Free Software Foundation, Inc.
# Contributed by ARM Ltd.
#
# This file is part of GCC.
#
# 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.
#
# 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 GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# Generate aarch64-builtin-iterators.h, a file containing a series of
# BUILTIN_<ITERATOR> macros, which expand to VAR<N> Macros covering the
# same set of modes as the iterator in iterators.md
#
# Find the <ITERATOR> definitions (may span several lines).
LC_ALL=C awk '
BEGIN {
print "/* -*- buffer-read-only: t -*- */"
print "/* Generated automatically by geniterators.sh from iterators.md. */"
print "#ifndef GCC_AARCH64_ITERATORS_H"
print "#define GCC_AARCH64_ITERATORS_H"
}
{
sub(/;.*/, "")
}
iterdef {
s = s " " $0
}
!iterdef && /\(define_mode_iterator/ {
iterdef = 1
s = $0
sub(/.*\(define_mode_iterator/, "", s)
}
iterdef {
# Count the parentheses, the iterator definition ends
# if there are more closing ones than opening ones.
nopen = gsub(/\(/, "(", s)
nclose = gsub(/\)/, ")", s)
if (nopen >= nclose)
next
iterdef = 0
gsub(/[ \t]+/, " ", s)
sub(/ *\)[^)]*$/, "", s)
sub(/^ /, "", s)
# Drop the conditions.
gsub(/ *"[^"]*" *\)/, "", s)
gsub(/\( */, "", s)
if (s !~ /^[A-Za-z0-9_]+ \[[A-Z0-9 ]*\]$/)
next
sub(/\[ */, "", s)
sub(/ *\]/, "", s)
n = split(s, a)
printf "#define BUILTIN_" a[1] "(T, N, MAP) \\\n"
printf " VAR" (n-1) " (T, N, MAP"
for (i = 2; i <= n; i++)
printf ", " tolower(a[i])
printf ")\n"
}
END {
print "#endif /* GCC_AARCH64_ITERATORS_H */"
}' $1
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