> $env:RAKUDO_OPTIMIZER_SM_DEBUG=1; raku

Welcome to Rakudo(tm) v2026.01.
Implementing the Raku(R) Programming Language v6.d.
Built on MoarVM version 2026.01.

To exit type 'exit' or '^Z'
[0] > my $j = all(1); $j ~~ Int:D
Try optimizing chained smartmatch:
  - QAST::Op(chain &infix:<~~>)  :statement_id<2> ~~
    - QAST::Var(lexical $j) <wanted> $j
    - QAST::WVal(Int:D) <wanted> Int:D

- LHS:
  - QAST::Var(lexical $j) <wanted> $j
- RHS:
  - QAST::WVal(Int:D) <wanted> Int:D

False
[1] > $j ~~ Int:D
Try optimizing chained smartmatch:
  - QAST::Op(chain &infix:<~~>)  :statement_id<1> ~~
    - QAST::Var(lexical $j) <wanted> $j
    - QAST::WVal(Int:D) <wanted> Int:D

- LHS:
  - QAST::Var(lexical $j) <wanted> $j
- RHS:
  - QAST::WVal(Int:D) <wanted> Int:D

True