Known issues of the compiler

[alastairreid]

We know about the following limitations of the compiler

Missing features

• No string operations are supported so the only strings you can use are string literals
• The real type, real literals and real operations are not supported
• Bitvectors are only supported if is is possible to determine the bitwidth based on how the function that uses it is used.
• Runtime checks are not performed for array indexes and bitvector slices.
• Integers are represented by a fixed bitwidth (usually 128 bits) which makes it possible that integers will overflow or wraparound.

Scope for improvement / optimization

• Generated code often contains dead code such as local variables that are not used
• Changing runtime library changes the types of imported/exported functions - this makes it hard to write code that works for any runtime library