Can you show what exactly gives you that error? I get no errors/warnings with this: 
#!/usr/bin/env perl
use strict;
use warnings;
use feature 'say';

my @result = @{ subroutine() };
say "@result";

sub subroutine {
    my @array = ();
    return \@array;
}

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In reply to Re^3: More efficient dereferencing of a subroutine return by frozenwithjoy
in thread More efficient dereferencing of a subroutine return by gg48gg

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