How do Haskell compilers decide whether to allocate on the heap or the stack?

Question

Haskell doesn\'t feature explicit memory management, and all objects are passed by value, so there\'s no obvious reference counting or garbage collection either. How does a Hask

Answer 1

The only things GHC puts on the stack are evaluation contexts. Anything allocated with a let/where binding, and all data constructors and functions, are stored in the heap. Lazy evaluation makes everything you know about execution strategies in strict languages irrelevant.