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| author | bors <bors@rust-lang.org> | 2015-11-06 06:13:59 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2015-11-06 06:13:59 +0000 |
| commit | 98fa2ac1bce84136a129a260b1eb42b9a83d61a0 (patch) | |
| tree | cadc4ee9b3b4cf466130bfafb784d2bb368ed537 /src/libstd/sys/unix/stack_overflow.rs | |
| parent | 7512808ac94cffd385a83d0bc6fc76d37a411879 (diff) | |
| parent | dcf323e5868309dea6e9be3560149cdaca5f1bb7 (diff) | |
| download | rust-98fa2ac1bce84136a129a260b1eb42b9a83d61a0.tar.gz rust-98fa2ac1bce84136a129a260b1eb42b9a83d61a0.zip | |
Auto merge of #29588 - nikomatsakis:mir-switch, r=aatch
Introduce a `SwitchInt` and restructure pattern matching to collect integers and characters into one master switch. This is aimed at #29227, but is not a complete fix. Whereas before we generated an if-else-if chain and, at least on my machine, just failed to compile, we now spend ~9sec compiling `rustc_abuse`. AFAICT this is basically just due to a need for more micro-optimization of the matching process: perf shows a fair amount of time just spent iterating over the candidate list. Still, it seemed worth opening a PR with this step alone, since it's a big step forward.
Diffstat (limited to 'src/libstd/sys/unix/stack_overflow.rs')
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