While looking at #134028 I noticed that none of pp_aelem, pp_aslice nor pp_multidref adjust the saved array index if they're negative when localizing, ie. the negative array index isn't adjusted to a positive index before being stored in the save stack. Some simple examples of the results: tony@mars:.../git/perl$ ./perl -Ilib -MData::Dumper -e '@x = (1); { local $x[-1] = 2; push @x, 3; } print Dumper(\@x)' $VAR1 = [ 2, 1 ]; tony@mars:.../git/perl$ ./perl -Ilib -MData::Dumper -e '@x = (1,2); { local $x[-2] = 3; pop @x; } print Dumper\@x' $VAR1 = [ 3 ]; This was unexpected to me. Should these ops adjust the index? TonyThread Next