Expensive Optimazation

[Zssffssz]

I was going through all of the tags gettn' used to my fresh DM compiler (love it) and in optimization there was a rather long tag called 'expensive optimization' Th DM website didn't have anything and google just brought up car engines.
What does it do?

[WaltP]

If the site doesn't have any info, contact then directly.

[mzimmers]

GCC has a similar tag:

-fexpensive-optimizations
Perform a number of minor optimizations that are relatively expensive.

I'd venture that "expensive" here means time-consuming to the compiler. Your code might not even contain the kind of stuff that such optimizations target, though.