f2ebabaf5f
The code to compute the address of a global variable depends on the kind of variable, so custom legalization is required. - Add a legalizer::globalvar module which exposes an expand_global_addr() function. This module is likely to grow as we add more types of global variables. - Add a ArgumentPurpose::VMContext enumerator. This is used to represent special 'vmctx' arguments that are used as base pointers for vmctx globals.