issues.txt

todo:
- string constants
- global variables
- check if global var initialized from non-pure function
- continue

nice-to-have:
- foo++/foo-- as statement
- &&, ||
- optimize:
	- if: move common part from begin of if/else basic block to previous basic block
- move assignments the most way down
- detect/remove unused assignments
- import

done:
- global constants
- output ASM
- support for stack and register variables
- optimize:
	- copy propagation (inline unchanged variables like `int a = b;`)
	- constant propagation (inline constants)
	- sum: 1 + a + 2 -> a + 3
- +=, -=, *=, <<=, >>=
- limit number of local variables (registers)
- more complex, realistic example
- / %
- fix cast
- hex numbers
- while loop
- break statement
- pure function detection
- linearize AST (IR) to basic blocks
- determine needed/provided local variables