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The FinalRead statement represented a virtual read that is executed after the SCoP. It was used when we verified the correctness of a schedule by checking if it yields the same FLOW dependences as the original code. This is only works, if we have a final read that reads all memory at the end of the SCoP. We now switched to just checking if a schedule does not introduce negative dependences and also consider WAW WAR dependences. This restricts the schedules a little bit more, but we do not have any optimizer that would calculate a more complex schedule. Hence, for now final reads are obsolete. llvm-svn: 152319 |
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