$ perl -MO=Concise,-exec -e'for (@a) { foo() }'
1  <0> enter
2  <;> nextstate(main 2 -e:1) v
3  <0> pushmark sM
4  <#> gv[*a] s
5  <1> rv2av[t2] sKRM/1
6  <#> gv[*_] s
7  <{> enteriter(next->c last->f redo->8) lKS
d  <0> iter s
e  <|> and(other->8) vK/1
8      <;> nextstate(main 1 -e:1) v
9      <0> pushmark s
a      <#> gv[*foo] s/EARLYCV
b      <1> entersub[t4] vKS/TARG,1
c      <0> unstack v
           goto d
f  <2> leaveloop vK/2
g  <@> leave[1 ref] vKP/REFC
-e syntax OK