#!/usr/bin/perl
if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
# DESCRIPTION: Verilator: Verilog Test driver/expect definition
#
# Copyright 2003 by Wilson Snyder. This program is free software; you can
# redistribute it and/or modify it under the terms of either the GNU
# Lesser General Public License Version 3 or the Perl Artistic License
# Version 2.0.

scenarios(vlt_all => 1);

compile(
    v_flags2 => ["--trace --output-split 1 --output-split-cfuncs 1 --exe ../$Self->{main_filename}"],
    verilator_make_gcc => 0,
    );

# We don't use the standard test_regress rules, as want to test the rules
# properly build
run(logfile=>"$Self->{obj_dir}/vlt_gcc.log",
    cmd=>["make",
          "-C ".$Self->{obj_dir},
          "-f $Self->{VM_PREFIX}.mk",
          "-j 4",
          "VM_PARALLEL_BUILDS=1",  # Important to this test
          "VM_PREFIX=$Self->{VM_PREFIX}",
          "TEST_OBJ_DIR=$Self->{obj_dir}",
          "CPPFLAGS_DRIVER=-D".uc($Self->{name}),
          ($opt_verbose ? "CPPFLAGS_DRIVER2=-DTEST_VERBOSE=1":""),
          "OPT_FAST=-O2",
          "OPT_SLOW=-O0",
          ($param{make_flags}||""),
    ]);

execute(
    check_finished => 1,
    );

{
    my $got1;
    foreach my $file (glob("$Self->{obj_dir}/*.cpp")) {
        $got1 = 1 if $file =~ /__1/;
        check_cpp($file);
    }
    $got1 or error("No __1 split file found");
}
check_gcc_flags("$Self->{obj_dir}/vlt_gcc.log");

ok(1);
1;

sub check_cpp {
    my $filename = shift;
    my $size = -s $filename;
    printf "  File %6d  %s\n", $size, $filename if $Self->{verbose};
    my $fh = IO::File->new("<$filename") or error("$! $filenme");
    my @funcs;
    while (defined (my $line = $fh->getline)) {
        if ($line =~ /^(void|IData)\s+(.*::.*)/) {
            my $func = $2;
            $func =~ s/\(.*$//;
            print "\tFunc $func\n" if $Self->{verbose};
            if ($func !~ /::_eval_initial_loop$/
                && $func !~ /::__Vconfigure$/
                && $func !~ /::trace$/
                && $func !~ /::traceInit$/
                && $func !~ /::traceFull$/
                ) {
                push @funcs, $func;
            }
        }
    }
    if ($#funcs > 0) {
        error("Split had multiple functions in $filename\n\t".join("\n\t",@funcs));
    }
}

sub check_gcc_flags {
    my $filename = shift;
    my $fh = IO::File->new("<$filename") or error("$! $filenme");
    while (defined (my $line = $fh->getline)) {
        chomp $line;
        if ($line =~ /\.cpp/) {
            my $filetype = ($line =~ /Slow/) ? "slow":"fast";
            my $opt = ($line !~ /-O2/) ? "slow":"fast";
            print "$filetype, $opt, $line\n" if $Self->{verbose};
            if ($filetype ne $opt) {
                error("${filetype} file compiled as if was ${opt}: $line");
            }
        }
    }
}