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Use SmallVec in TokenStreamBuilder. #59476

Merged
merged 1 commit into from
Mar 29, 2019
Merged

Use SmallVec in TokenStreamBuilder. #59476

merged 1 commit into from
Mar 29, 2019

Commits on Mar 28, 2019

  1. Use SmallVec in TokenStreamBuilder. 

    This reduces by 12% the number of allocations done for a "clean
incremental" of `webrender_api`, which reduces the instruction count by
about 0.5%.

It also reduces instruction counts by up to 1.4% across a range of
rustc-perf benchmark runs.
    @nnethercote
    nnethercote committed Mar 28, 2019
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