* Takes the leaves of expression trees and makes them dereferences of
* assignments of the leaves to temporaries, according to a predicate.
*
- * This is used for automatic function inlining, where we want to take
- * an expression containing a call and move the call out to its own
- * assignment so that we can inline it at the appropriate place in the
- * instruction stream.
+ * This is used for breaking down matrix operations, where it's easier to
+ * create a temporary and work on each of its vector components individually.
*/
#include "ir.h"