Paradise

A programming language with compiles to LLVM with OpenCL

Sample programs

Squaring and summing an array:

module main
I64 sumSqrs() {
    let data1 = [1,2,3,4,5,6,7,8,9,10];
    let sqrs = [0,0,0,0,0,0,0,0,0,0];
    [|sqrs = data1 .* data1 |];

    let sum = 0;
    for i in sqrs {
        sum = sum + i;
    }
    return sum;
}

This creates the OpenCL Kernel

__kernel void MYPROG (__global long* t2_sqrs,__global long* t0_data1,__global long* t1_data2) { 
    const int i = get_global_id(0);
    t2_sqrs[i] = t0_data1[i] * t1_data2[i];
}

which is used to execute the array multiplication.

Check out the samples directory for even more samples.

Building

Requires Stack, llvm, and OpenCL

stack install
stack test

Running

# Compile
parac myfile.para
# Run
./a.out

Editor Support

If you use Emacs, you can add

(setq para-highlights
        '(("\\<module\\>\\|\\<return\\>\\|\\<while\\>\\|\\<if\\>\\|\\<for\\>\\|\\<in\\>\\|\\<case\\>\\|\\<of\\>" . font-lock-keyword-face)
          ("\\/\\/.*" . font-lock-comment-face)
          ("\\<[A-Z][_A-Za-z0-9]*\\>" . font-lock-type-face)
          ("\"[^\"]*\"" . font-lock-type-face)
          ))
	(define-derived-mode para-mode fundamental-mode "para"
    "major mode for editing para"
    (setq font-lock-defaults '(para-highlights))
		)

to your .emacs to get basic syntax highlighting.