Pretty heavy in the errata department, and doesn't provide much beyond the original papers in terms of depth or interpretation. Read the papers of loop-dependency testing if you need the detail. Reach Kennedy/Allen or Muchnick if you need the hand-holding. Not a bad book, but not much was lost when it went out of print.
(earlier) Recommended to us by Santosh Ponde in CS6241, Compiler Design. A bit off the beaten path of the Rice-Cornell-UIUC Compiler Mafia (Wolfe's at UKansas, although his pedigree includes time at UOregon, another pillar of the seemingly tightly-knit compiler community (and prior home to a fine, fine man and GT graduate, Yannis Smaragdakis (it turns out he's at UMass now), who helped out on the k-rad FC++ and LC++ projects (along with Brian McNamara, another Yellow Jacket (now at Microsoft, and on GoodReads!))), and what exactly is up with that F-1 racer on the front cover?, but likely to have some good info.