intermediate code generation in a sentence

1. The front end of the compiler was created and tested without intermediate code generation capabilities ( parse only ).
2. Other passes of compiler include intermediate code generation phase which takes place before code generation and code optimization phase which can take place when the source program is written, or after intermediate code generation phase, or after code generation phase.
3. Other passes of compiler include intermediate code generation phase which takes place before code generation and code optimization phase which can take place when the source program is written, or after intermediate code generation phase, or after code generation phase.
4. It's difficult to find intermediate code generation in a sentence.