Re: Compiled program size when /INCLUDEing consts and prototypes

Are you sure that what you are seeing is not simply a reflection of an increase in the "What Used" information stored in the PGM object?

Within the compiler I believe that there's constant folding going on so that storage is not wasted with multiple names being used for the same value - so I find it hard to believe that unused constants are "wasting" storage.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Mar 16, 2017, at 12:36 PM, Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

So I've got a simple RPGLE program...

/FREE
dsply 'Hello World';
*INLR=*ON;
return;
/END-FREE

Compiled with:
OPTION(*NOUNREF) DBGVIEW(*NONE) OPTIMIZE(*FULL) TGTRLS(*CURRENT)

I've also got two /INCLUDE files, one with prototypes and one with constant
definitions.

I was surprised to find that static storage appears to go up about 16 bytes
per prototype; even though none of the procedures are called.

I was even more surprised to find that program size seems to up 4KB if I
include both prototypes & constant files; if I only include one of them, it
doesn't change. However, if I cut down the number of PR's & CONSTs...then
the program size goes back down 4KB.

Can anyone (Barbara :) ) provide some insight into this madness?

I'm trying to argue that this style of using PRs
/define inc_myfun1_pr
/define inc_myfun2_pr
/define inc_myfun3_pr
/include MYPROTOS
/undefine inc_myfun1_pr
/undefine inc_myfun2_pr
/undefine inc_myfun3_pr

To only include the prototypes of procedures you need to call is silly.

Additionally, I'm arguing for having a STDCONST file of the most used
constants is a good idea. Rather than defining the constants in each
program.

The push-back is that the unneeded PRs & CONSTs would increase program
size. I said no they won't, but apparently I was wrong. :)

So I'm trying to understand the behavior so I can counter-argue correctly.

Thanks!
Charles
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