Actually, it is a regression. Code: my int @x[-2**63]; say @x.shape
¦«2015.12»: (-9223372036854775808) ¦«2016.06»: Illegal dimension in shape: -9223372036854775808. All dimensions must be integers bigger than 0 in block <unit> at /home/bisectable/git/whateverable/data/regressionable/15074816/snippet line 1 «exit code = 1» ¦«2016.12»: (-9223372036854775808) ¦«2017.06»: (-9223372036854775808) ¦«f72be0f130cf»: (-9223372036854775808) Possible IRC discussion: https://irclog.perlgeek.de/perl6-dev/2017-08-26#i_15074816 So it was first fixed in (2016-04-09) https://github.com/rakudo/rakudo/commit/46dca95547949bc3d791efb2620d362a68176fdc and the accidentally broken in (2016-11-24) https://github.com/rakudo/rakudo/commit/1b840f19599027f980fcc54f4b565ef06a1043bc On 2017-08-26 16:43:20, alex.jakime...@gmail.com wrote: > Code: > my int @x[-2**63]; > say +@x > > Result: > -9223372036854775808 > > > See RT #126800 for exactly the same issue with non-native arrays: > https://rt.perl.org/Ticket/Display.html?id=126800
