search for: lcold_bb

I'm part of a team working on adding an llvm codegen backend to HHVM (PHP JIT, http://hhvm.com) using MCJIT. We have a code layout problem and I'm looking for opinions on good ways to solve it. The short version is that the memory we emit code into is split into a few different areas, and we'd like a way to control which area each BasicBlock ends up in during codegen. I know this