search for: verifydominatortree

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2017 Jul 17
2
An update on the DominatorTree and incremental dominators
...er. You can get it by calling .getLevel() on a DomTreeNode. - We have a new set of verifiers that are able to prove or disprove correctness of a DomTree -- you can explicitly do it by calling DT.verify(). The check has a disadvantage of being quite slow (O(n^3)), so the legacy DT.verifyDominatorTree() uses it only when ENABLE_EXPENSIVE_CHECK is enabled, or when the -verify-dom-info command line option is set to 1. Some of the transforms assume that calling DT.verifyDomTree() is fast, so we cannot turn it on by default. - Dominators and Postdominators are now different types, i....