We can use the template parameter IsPostDom to pick an appropriate SmallVector size to store DomTree roots for dominators and postdominators. Before, the code would always allocate memory with std::vector.
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Details
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Differential D35636
[Dominators] Change Roots type to SmallVector Authored by kuhar on Jul 19 2017, 10:49 AM.
Details We can use the template parameter IsPostDom to pick an appropriate SmallVector size to store DomTree roots for dominators and postdominators. Before, the code would always allocate memory with std::vector.
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