Static scheduling plays badly with variable memory latencies and Itanium's speculative memory features just didn't work well enough. But it's instruction encod

Static scheduling plays badly with variable memory latencies and Itanium's speculative memory features just didn't work well enough. But it's instruction encoding was very inefficient and hurt a lot on workloads sensitive to i-cache pressure. If I understand EDGE correctly they don't try to statically schedule with respect to loads so this isn't a problem, they're just explicit about where the parallelism is.