Compiler from C-like programming language to LLVM
PL has static typing with simple datatypes and functions.
Entry point is main function with type int:
int main(){
return 0;
}
Full grammar for PL is available here
- int - standard 32-bit integer number
- bool - boolean with two possible values: true and false
- string - string value with access to characters by index
- void - type for function, which returns no value
There is only a brief overview. Please, see examples for more.
- while - standard while cycle, which keeps running until condition is true. Supports break and continue operators
- if/then/else - conditional operator with optional else clause
- switch - conditional operator for choice based on value equality
- union - operator for uniting bits for different variables
Again only a brief everview. Please, see examples for more.
- read - read values from standard input
- write - write value to standard output (please, use \0A for new lines)
- length - returns length of a string
- ==, !=, &&, || - logic operators
- +, -, *, /, % - arithmetic operators
Same thing with examples =)
- forward propagation - invokate function before declaration
- constant folding - fold simple arithmetic expressions to constant value
All code examples listed in example_*.txt files for ability to compile and run them.
Compiler usage examples:
java -jar compiler.jar input.txt output.txt
compiler.jar - jar file, which could be built with Maven
input.txt - input code
output.txt - produced LLVM code
Also you can run compiler directly from Java
Please, use lli for running LLVM code.