From the paper: "we make no attempt to describe the mechanisms that would be necessary to produce these schedules nor the architectural fea- tures that would be

From the paper: "we make no attempt to describe the mechanisms that would be necessary to produce these schedules nor the architectural fea- tures that would be necessary to encode these schedules. We do, however, think that a useful mental model for the system under study is a machine like the Transmeta Crusoe [9], which consisted of a VLIW processor coupled with the CMS dynamic binary trans- lator. Our study can be viewed as investigating the potential for a futuristic dynamic optimizer provided it was not constrained in the static schedules it could generate and it could effectively profile the execution so as to generate relevant schedules." "The Itanium approach ... was supposed to be so terrific—until it turned out that the wished-for compilers were basically impossible to write." - Donald Knuth