Harakiri

Compiler for a simple programming language named harakiri to an assembly. It's implemented without LLVM or GCC backend.

Supported architectures

• Aarch64

Syntax

All supported constructions are used in the code below:

def fib(n) {
    if n <= 2 {
        return 1
    }
    return fib(n-1) + fib(n-2)
}

def print_interval(from, to) {
    while from < to {
        echo(from)
        from = from + 1
    }
}

def main() {
    echo("Enter mode: 0 - interval printer, 1 - fibonacci calculator")
    a = -1
    while 1 {
        a = input()
        if a != 0 && a != 1 {
            echo("Mode must be equal to 0 or 1")
        } else {
            break
        }
    }
    
    if a == 0 {
        echo("enter start value")
        a = input()
        echo("enter end value")
        b = input()
        print_interval(a, b)
    } else {
        echo("enter n to get n-th fibonacci number")
        a = input()
        echo(a, "-th fibonacci number is: ", fib(a))
    }
}

Supported operations

operation	unary or binary	description
-	unary	negate
+	binary	addition
-	binary	subtraction
*	binary	multiplication
/	binary	division
==	binary	equal to
!=	binary	not equal to
<	binary	lower than
<=	binary	lower than or equal to
>	binary	greater than
>=	binary	greater than or equal to
&&	binary	boolean and
||	binary	boolean or

Implemented parts

• Parser
• Type checker
• IR generation
• Assembly language code generation
• IR optimizations

Usage

Usage: harakiri [-v|--version] [-t|--dump-ast] [-i|--dump-ir] [-a|--arch ARCH] 
                [-p|--platform OS] [-c PATH] [-o PATH] [-l PATH] 
                [--as-path PATH] [--ld-path PATH]

Available options:
  -v,--version             Display compiler version information
  -t,--dump-ast            Dump AST representation
  -i,--dump-ir             Dump intermediate representation
  -a,--arch ARCH           Set target architecture (default: aarch64)
  -p,--platform OS         Set target operating system (default: linux)
  -c PATH                  Set source file
  -o PATH                  Set output file
  -l PATH                  Set standard library path
  --as-path PATH           Set path to the assembler
  --ld-path PATH           Set path to the linker
  -h,--help                Show this help text