fortran preprocessor for in-line code substitution

We are looking for software to read FORTRAN-77 source code and
do an in-line replacement of subroutine/function calls with the
source (also fortran) code from the called subroutine/function.


We're interested in such a tool for several reasons:


1) to allow (encourage) users to modularize code (good software
engineering) without the penalty of subroutine call
overhead for frequently called routines.


2) to develop portable applications on top of non-portable functions
(bit manipulation, etc.).


3) to allow vectorizing/parallelizing compilers to "do their thing"
across fortran module boundaries.


4) to restructure existing code in a more "parallel" sense (minimizing
synchronization and communication).


Has anyone done something like this that is publically available?
Or are you looking for a good CS thesis project? Failing that, do
enough people think this makes sense that we can get some support to
develop such a tool here, probably based on TOOLPACK.


p.s. The next thing would be a tool to take a section of code
out of a routine that had "evolved" beyond desirable size
and "modularize" it automatically.
                Scott| ARPA: lamson@ge-crd.arpa
              Lamson| UUCP: lamson@sierra.steinmetz.ge.com
(518)387-5795| GE DECnet: qtmvax::lamson
[There are a zillion Fortran source mungers out there, ratfor being the most
familiar to the Unix crowd. I'd expect this has been done before, and invite
reports. -John]
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