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| author | bors <bors@rust-lang.org> | 2019-07-02 20:00:29 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2019-07-02 20:00:29 +0000 |
| commit | 0beb2ba16a08dfa01569b5f4644da315dc4c806c (patch) | |
| tree | 12d38055dab44d3af0739db03f498f7dd1ca4956 /src/test/ui/structs-enums/tuple-struct-construct.rs | |
| parent | 848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 (diff) | |
| parent | b7fe2ca5e09b8edab393073198f8f55e1a78079f (diff) | |
| download | rust-0beb2ba16a08dfa01569b5f4644da315dc4c806c.tar.gz rust-0beb2ba16a08dfa01569b5f4644da315dc4c806c.zip | |
Auto merge of #61268 - michaelwoerister:stabilize-pgo, r=alexcrichton
Stabilize support for Profile-guided Optimization This PR makes profile-guided optimization available via the `-C profile-generate` / `-C profile-use` pair of commandline flags and adds end-user documentation for the feature to the [rustc book](https://doc.rust-lang.org/rustc/). The PR thus ticks the last two remaining checkboxes of the [stabilization tracking issue](https://github.com/rust-lang/rust/issues/59913). From the tracking issue: > Profile-guided optimization (PGO) is a common optimization technique for ahead-of-time compilers. It works by collecting data about a program's typical execution (e.g. probability of branches taken, typical runtime values of variables, etc) and then uses this information during program optimization for things like inlining decisions, machine code layout, or indirect call promotion. If you are curious about how this can be used, there is a rendered version of the documentation this PR adds available [here]( https://github.com/michaelwoerister/rust/blob/stabilize-pgo/src/doc/rustc/src/profile-guided-optimization.md). r? @alexcrichton cc @rust-lang/compiler
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