batch optimization

[liesauer]

let's says i want to doing this:

1. saturate
2. darken
3. wartermark

when it runs, the actual code is something like this

for (x, y) in dimensions {
    // saturate
}
for (x, y) in dimensions {
    // darken
}
for (x, y) in dimensions {
    // watermark
}

with batch optimization, it can be

for (x, y) in dimensions {
    // saturate + darken + watermark
}

it will save tons of loops, is there any feature plans doing this?

i am not english native speaker neither nor a professor on image processing, hope the description clear enough.

[liesauer]

making

for (x, y) in dimensions {
    pixels[x][y] = pixels[x][y] + 1;
}
for (x, y) in dimensions {
    pixels[x][y] = pixels[x][y] * 2;
}

into

for (x, y) in dimensions {
    pixels[x][y] = (pixels[x][y] + 1) * 2;
}

same result but fewer loops