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[MachineCSE] Rewrite a loop checking if a block is in a set of blocks without using a set. NFC.

Authored by mzolotukhin on May 3 2018, 4:47 PM.



Using a set is unnecessary here an in some cases (see e.g. PR37277)
takes significant amount of time to just insert values into it. In this
particular case all we need is just to check if we find the block we are
looking for or not.

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Event Timeline

mzolotukhin created this revision.May 3 2018, 4:47 PM
davide edited reviewers, added: efriedma; removed: eli.friedman.May 3 2018, 5:26 PM
efriedma accepted this revision.May 3 2018, 6:24 PM


This revision is now accepted and ready to land.May 3 2018, 6:24 PM
This revision was automatically updated to reflect the committed changes.