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Add an opt-in to store incoming edges in VecGraph + misc #123980

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merged 4 commits into from
Apr 19, 2024

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@WaffleLapkin WaffleLapkin commented Apr 15, 2024

r? @fmease

needed for #123939

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rustbot commented Apr 15, 2024

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

Some changes occurred in coverage instrumentation.

cc @Zalathar

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 15, 2024
@WaffleLapkin WaffleLapkin changed the title Add an opt-in to store incoming edges in VecGraph + misc Add an opt-in to store incoming edges in VecGraph + misc Apr 15, 2024
It's required for the next commit.

Note that you can still have `G = &H`, since there are implementations of all
the graph traits for references.
// similarly to its successors but offsetting by `edge_count`. `edge_count` is
// `edge_targets.len()/2` (again, in case BR is true) because half of the vec is back refs.
//
// All of this might be confusing, so here is an example graph and its representation:
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Nice diagram! 💯

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Thanks!

@@ -1,99 +1,235 @@
use crate::graph::{DirectedGraph, NumEdges, Successors};
use crate::graph::{DirectedGraph, NumEdges, Predecessors, Successors};
use rustc_index::{Idx, IndexVec};

#[cfg(test)]
mod tests;
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nit: could you add a basic test or two for the predecessors functionality? (I think you also need to update some of the existing tests to compile with the extra generic parameter) 🙂

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I did not need to update existing tests, since the new generic parameter has a default.

I added a test for predecessors + added predecessor-aware mode for existing tests (so that we are more sure that enabling predecessors doesn't break other stuff).

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@bors r=wesleywiser rollup=always

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bors commented Apr 18, 2024

📌 Commit 523fe2b has been approved by wesleywiser

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 18, 2024
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Apr 18, 2024
…r, r=wesleywiser

 Add an opt-in to store incoming edges in `VecGraph` + misc

r? `@fmease`

needed for rust-lang#123939
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Apr 18, 2024
…r, r=wesleywiser

 Add an opt-in to store incoming edges in `VecGraph` + misc

r? ``@fmease``

needed for rust-lang#123939
workingjubilee added a commit to workingjubilee/rustc that referenced this pull request Apr 18, 2024
…r, r=wesleywiser

 Add an opt-in to store incoming edges in `VecGraph` + misc

r? `@fmease`

needed for rust-lang#123939
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 18, 2024
…kingjubilee

Rollup of 6 pull requests

Successful merges:

 - rust-lang#117919 (Introduce perma-unstable `wasm-c-abi` flag)
 - rust-lang#123571 (Correctly change type when adding adjustments on top of `NeverToAny`)
 - rust-lang#123752 (Properly handle emojis as literal prefix in macros)
 - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc)
 - rust-lang#124110 (Fix negating `f16` and `f128` constants)
 - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation)

r? `@ghost`
`@rustbot` modify labels: rollup
workingjubilee added a commit to workingjubilee/rustc that referenced this pull request Apr 18, 2024
…r, r=wesleywiser

 Add an opt-in to store incoming edges in `VecGraph` + misc

r? ``@fmease``

needed for rust-lang#123939
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 19, 2024
…kingjubilee

Rollup of 9 pull requests

Successful merges:

 - rust-lang#117919 (Introduce perma-unstable `wasm-c-abi` flag)
 - rust-lang#123406 (Force exhaustion in iter::ArrayChunks::into_remainder)
 - rust-lang#123752 (Properly handle emojis as literal prefix in macros)
 - rust-lang#123935 (Don't inline integer literals when they overflow - new attempt)
 - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc)
 - rust-lang#124019 (Use raw-dylib for Windows synchronization functions)
 - rust-lang#124110 (Fix negating `f16` and `f128` constants)
 - rust-lang#124112 (Fix ICE when there is a non-Unicode entry in the incremental crate directory)
 - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 19, 2024
…kingjubilee

Rollup of 7 pull requests

Successful merges:

 - rust-lang#123406 (Force exhaustion in iter::ArrayChunks::into_remainder)
 - rust-lang#123752 (Properly handle emojis as literal prefix in macros)
 - rust-lang#123935 (Don't inline integer literals when they overflow - new attempt)
 - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc)
 - rust-lang#124019 (Use raw-dylib for Windows synchronization functions)
 - rust-lang#124110 (Fix negating `f16` and `f128` constants)
 - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 2b94e02 into rust-lang:master Apr 19, 2024
12 checks passed
@rustbot rustbot added this to the 1.79.0 milestone Apr 19, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Apr 19, 2024
Rollup merge of rust-lang#123980 - WaffleLapkin:graph-average-refactor, r=wesleywiser

 Add an opt-in to store incoming edges in `VecGraph` + misc

r? ```@fmease```

needed for rust-lang#123939
@WaffleLapkin WaffleLapkin deleted the graph-average-refactor branch April 19, 2024 10:57
bors added a commit to rust-lang-ci/rust that referenced this pull request May 2, 2024
…int, r=compiler-errors

Add a lint against never type fallback affecting unsafe code

~~I'm not very happy with the code quality... `VecGraph` not allowing you to get predecessors is very annoying. This should work though, so there is that.~~ (ended up updating `VecGraph` to support getting predecessors)

~~First few commits are from rust-lang#123934 rust-lang#123980
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5 participants