The /..._looplevel qualifiers enable you to limit
inlining to just routines that are referenced in nested loops, where
the effects of reduced call overhead or enhanced optimizations will
be multiplied.
The parameter is defined from the most deeply nested subprogram
reference. The /inll=1 qualifier restricts inlining to
subroutines and functions referenced in the deepest loop nest. The
/inll=3 qualifier restricts inlining to those routines
referenced at the three deepest levels. The DO loop nest level of
each CALL or function reference is included in the optional calling
tree section of the listing file.
The /..._looplevel qualifiers do not activate inlining
or IPA. The /inline or /ipa qualifiers
must be specified.
The C*$* [no]inline and C*$* [no]ipa
directives, when enabled, are not affected by the
/looplevel restrictions.