No, it doesn't. 

#!perl -l

sub test_c { $x=2; return 1 if 0;     }
sub test_v { $x=2; return 1 if $_[0]; }

print test_c();
print test_v(0);

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If an optimisation changes Perl's behaviour, it would be a bug.

In reply to Re^2: return if 0 by ikegami
in thread return if 0 by zigdon

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