Correct Storing of Variables

[Lol3rrr]

Right now the Compiler only keeps the Variables in Registers, this however wont work as soon as Pointers are introduced and also supported by the Backends. Because of this the IR was extended to support 2 new Statements, LoadVariable and StoreVariable.

LoadVariable

This is intended to force the Compiler to read the Variable from the Stack (or wherever it is actually placed) back into its register, i.e. forcing a reload of it.

StoreVariable

This is intended to force the Compiler to write the Variable out from the Register to the actual storage Location, making it visible from Pointers as well. This should now be generated after every assignment as it ensures that Pointers always read the correct Value from it. To not hamper Performance to much we should also later on add a new Optimization-Pass that tries to remove unnecessary stores, but only where it is proven to be valid.

[Lol3rrr]

This was actually added in some basic form but im not quite sure how fleshed out it is at the moment

[Lol3rrr]

LoadVariable has been replaced by simply using an Assignment with Unknown Value, which should be translated to a memory load from the correct location in memory for the given Variable

[Lol3rrr]

As far as i ink this should be fixed as well and is no longer relevant