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94 lines
2.3 KiB
Perl
Executable File
94 lines
2.3 KiB
Perl
Executable File
#! /usr/bin/perl -w
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# Copyright (C) 2013 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library 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 GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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use strict;
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use warnings;
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# Generate a benchmark source file for a given input.
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if (@ARGV < 2) {
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die "Usage: bench.pl <function> <iterations> [parameter types] [return type]"
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}
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my $arg;
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my $func = $ARGV[0];
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my $iters = $ARGV[1];
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my @args;
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my $ret = "void";
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my $getret = "";
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my $retval = "";
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if (@ARGV >= 3) {
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@args = split(':', $ARGV[2]);
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}
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if (@ARGV == 4) {
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$ret = $ARGV[3];
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}
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my $decl = "extern $ret $func (";
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if (@args == 0 || $args[0] eq "void") {
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print "$decl void);\n";
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print "#define CALL_BENCH_FUNC(j) $func();\n";
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print "#define NUM_SAMPLES (1)\n";
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}
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else {
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my $num = 0;
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my $bench_func = "#define CALL_BENCH_FUNC(j) $func (";
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my $struct = "struct args {";
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foreach $arg (@args) {
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if ($num > 0) {
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$bench_func = "$bench_func,";
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$decl = "$decl,";
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}
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$struct = "$struct $arg arg$num;";
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$bench_func = "$bench_func in[j].arg$num";
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$decl = "$decl $arg";
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$num = $num + 1;
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}
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print "$decl);\n";
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print "$bench_func);\n";
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print "$struct } in[] = {";
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open INPUTS, "<$func-inputs" or die $!;
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while (<INPUTS>) {
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chomp;
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print "{$_},\n";
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}
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print "};\n";
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print "#define NUM_SAMPLES (sizeof (in) / sizeof (struct args))\n"
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}
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# In some cases not storing a return value seems to result in the function call
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# being optimized out.
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if ($ret ne "void") {
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print "static volatile $ret ret = 0.0;\n";
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$getret = "ret = ";
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}
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print "#define BENCH_FUNC(j) ({$getret CALL_BENCH_FUNC (j);})\n";
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print "#define ITER $iters\n";
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print "#define FUNCNAME \"$func\"\n";
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print "#include \"bench-skeleton.c\"\n";
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