We've just moved to a new iTanium development system at my place of business, as the previous one is going to be diverted to other uses. Our product uses a locally produced library built from over 2,300 C++ sources.
We just noticed that our libraries are 2/3s smaller on the new system than they were on the old one! The process for building them has not changed, both the old and new systems are ia64, OS version 11.23, and both are compiled using aCC. The only difference that I can find is that the aCC compiler on the old system is version A.06.06, and on the new system the version is A.06.15.
Have there been changes in the compiler between those two versions that would account for the substantial drop in object file size and, if so, what are they?
TIA.