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| author | Dylan DPC <dylan.dpc@gmail.com> | 2020-05-08 18:48:29 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-08 18:48:29 +0200 |
| commit | 0c8ef4772a18b913965382613ca1e99b98f37e08 (patch) | |
| tree | bbf29020341b784a3a41e39132c6860b4217ce38 /src/test/codegen/integer-overflow.rs | |
| parent | e3a4ff0d76d6d479e3cc113eadbd8494c2ab89b8 (diff) | |
| parent | d26d187ff83b0b10687a3c380114cda1590d9e26 (diff) | |
| download | rust-0c8ef4772a18b913965382613ca1e99b98f37e08.tar.gz rust-0c8ef4772a18b913965382613ca1e99b98f37e08.zip | |
Rollup merge of #71975 - nnethercote:reduce-TypedArena-creations-in-check_match, r=oli-obk
Reduce `TypedArena` creations in `check_match`. `check_match` creates a new `TypedArena` for every call to `create_and_enter`. DHAT tells me that each `TypedArena` typically is barely used, with typically a single allocation per arena. This commit moves the `TypedArena` creation outwards a bit, into `check_match`, and then passes it into `create_and_enter`. This reduces the number of arenas created by about 4-5x, for a very small perf win. (Moving the arena creation further outwards is hard because `check_match` is a query.) r? @oli-obk
Diffstat (limited to 'src/test/codegen/integer-overflow.rs')
0 files changed, 0 insertions, 0 deletions