[LLVMdev] AddressSpace question

[Yakov Malinkovich]

Hellp

One of the data members of class PointerType  is [unsigned] AddressSpace

What is its role? I didn`t find sufficient description about it in the
LLVM documentation. Could someone please point me where can I get
description about different AddressSpaces?

What I saw that address spaces may affect how optimizations are
performed –Where can I get more information about this issue.

Thank you