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Use SmallVec for DepNodeIndex within dep_graph. #50565

Merged
merged 1 commit into from
May 11, 2018
Merged

Use SmallVec for DepNodeIndex within dep_graph. #50565

merged 1 commit into from
May 11, 2018

Commits on May 9, 2018

  1. Use SmallVec for DepNodeIndex within dep_graph. 

    This avoids a decent number of allocations, enough to speed up
incremental runs of many rustc-benchmarks, the best by 2%.
    @nnethercote
    nnethercote committed May 9, 2018
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