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f5144938bd
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86 Commits

Author SHA1 Message Date
Maybe Waffle
f5144938bd Rename WithNumEdges => NumEdges and WithStartNode => StartNode 2024-04-14 15:51:29 +00:00
Maybe Waffle
0d5fc9bf58 Merge {With,Graph}{Successors,Predecessors} into {Successors,Predecessors} 
Now with GAT!
 2024-04-14 15:48:53 +00:00
Maybe Waffle
398da593a5 Merge WithNumNodes into DirectedGraph 2024-04-14 15:46:40 +00:00
Camille GILLOT
f83468c89b Inline dominator check. 2023-12-31 00:37:45 +00:00
surechen
40ae34194c remove redundant imports 
detects redundant imports that can be eliminated.

for #117772 :

In order to facilitate review and modification, split the checking code and
removing redundant imports code into two PR.
 2023-12-10 10:56:22 +08:00
Nicholas Nethercote
b12851ce5d Avoid an unnecessary by_ref. 2023-11-28 14:32:40 +11:00
Nicholas Nethercote
7060fc8327 Replace no_ord_impl with orderable. 
Similar to the previous commit, this replaces `newtype_index`'s opt-out
`no_ord_impl` attribute with the opt-in `orderable` attribute.
 2023-11-22 18:38:17 +11:00
Tomasz Miąsko
b61a6d59e4 Remove unused dominator iterator 2023-10-10 21:39:59 +02:00
Tomasz Miąsko
0528d378b6 Optimize dominators for small path graphs 
Generalizes the small dominators approach from #107449.
 2023-10-05 23:45:59 +02:00
Tomasz Miąsko
ba694e301c Remove redundant Dominators::start_node field 2023-10-05 23:45:58 +02:00
Tomasz Miąsko
a8ec7ddf0e Test immediate dominators using public API 2023-10-05 23:45:58 +02:00
Zalathar
01b67f4b26 coverage: Simplify sorting of coverage spans extracted from MIR 
Switching to `Ordering::then_with` makes control-flow less complicated, and
there is no need to use `partial_cmp` here.
 2023-09-18 23:15:25 +10:00
klensy
3b26b3d1d2 don't use SnapshotVec in Graph implementation, as it looks unused; use Vec instead 2023-08-28 18:59:55 +03:00
Mark Rousskov
cc907f80b9 Re-format let-else per rustfmt update 2023-07-12 21:49:27 -04:00
bors
97d328012b Auto merge of #111673 - cjgillot:dominator-preprocess, r=cjgillot,tmiasko 
Preprocess and cache dominator tree

Preprocessing dominators has a very strong effect for https://github.com/rust-lang/rust/pull/111344.
That pass checks that assignments dominate their uses repeatedly. Using the unprocessed dominator tree caused a quadratic runtime (number of bbs x depth of the dominator tree).

This PR also caches the dominator tree and the pre-processed dominators in the MIR cfg cache.

Rebase of https://github.com/rust-lang/rust/pull/107157
cc `@tmiasko`
 2023-05-24 16:18:21 +00:00
Camille GILLOT
7c8f29f02c Revert spurious changes. 2023-05-18 14:36:13 +00:00
Camille GILLOT
fa8598cb50 Merge DominatorTree and Dominators. 2023-05-17 10:37:29 +00:00
Camille GILLOT
4bbdb64016 Typo. 2023-05-17 10:29:12 +00:00
Camille GILLOT
ae318e3444 Remove outdated comment. 2023-05-17 10:26:04 +00:00
Tomasz Miąsko
aa1267f630 Preprocess dominator tree to answer queries in O(1) 2023-05-17 09:36:12 +00:00
Camille GILLOT
84339a6f05 Process current bucket instead of parent's bucket when starting loop for dominators. 2023-05-15 16:16:34 +00:00
Tomasz Miąsko
f16d2b1629 Start node has no immediate dominator 
Change the immediate_dominator return type to Option, and use None to
indicate that node has no immediate dominator.

Also fix the issue where the start node would be returned as its own
immediate dominator.
 2023-05-14 16:09:58 +02:00
Maybe Waffle
e496fbec92 Split {Idx, IndexVec, IndexSlice} into their own modules 2023-04-24 13:53:35 +00:00
Nilstrieb
81c320ea77 Fix some clippy::complexity 2023-04-09 23:22:14 +02:00
Scott McMurray
a2ee7592d6 Use &IndexSlice instead of &IndexVec where possible 
All the same reasons as for `[T]`: more general, less pointer chasing, and `&mut IndexSlice` emphasizes that it doesn't change *length*.
 2023-04-02 17:35:37 -07:00
John Kåre Alsaker
f60d2eb6c1 Add -Z time-passes-format to allow specifying a JSON output for -Z time-passes 2023-03-21 18:18:25 +01:00
b-naber
8252a6eddf address review 2023-02-21 21:54:53 +00:00
b-naber
e2bf960fe1 sccs info 2023-02-19 22:12:12 +00:00
Bryan Garza
1bbd655888 Improve efficiency of has_back_edge(...) 2023-01-24 00:01:37 +00:00
Bryan Garza
f9982ea24a Add comment on cause of panic in dominators algorithm 2023-01-23 23:56:22 +00:00
Yuki Okushi
eae7f947b5
Rollup merge of #107153 - tmiasko:dominates, r=oli-obk 
Consistently use dominates instead of is_dominated_by

There is a number of APIs that answer dominance queries. Previously they were named either "dominates" or "is_dominated_by". Consistently use the "dominates" form.

No functional changes.
 2023-01-23 19:30:02 +09:00
Tomasz Miąsko
955e7fbb16 Consistently use dominates instead of is_dominated_by 
There is a number of APIs that answer dominance queries. Previously they
were named either "dominates" or "is_dominated_by". Consistently use the
"dominates" form.

No functional changes.
 2023-01-21 12:15:02 +01:00
bors
21f6839352 Auto merge of #106976 - tmiasko:borrowck-lazy-dominators, r=cjgillot 
Lazy dominator tree construction in borrowck

Motivated by the observation that sometimes constructed dominator tree was never queried.
 2023-01-21 11:02:29 +00:00
bors
56ee85274e Auto merge of #106090 - WaffleLapkin:dereffffffffff, r=Nilstrieb 
Remove some `ref` patterns from the compiler

Previous PR: https://github.com/rust-lang/rust/pull/105368

r? `@Nilstrieb`
 2023-01-20 04:52:28 +00:00
Guillaume Gomez
dee88e0fa2
Rollup merge of #107037 - tmiasko:rank, r=oli-obk 
Fix Dominators::rank_partial_cmp to match documentation

The only use site is also updated accordingly and there is no change in end-to-end behaviour.
 2023-01-19 11:19:36 +01:00
Tomasz Miąsko
b8c5821ad8 Fix Dominators::rank_partial_cmp to match documentation 
The only use site is also updated accordingly and there is no change in
end-to-end behaviour.
 2023-01-18 17:11:43 +01:00
Scott McMurray
925dc37313 Stop using BREAK & CONTINUE in compiler 
Switching them to `Break(())` and `Continue(())` instead.

libs-api would like to remove these constants, so stop using them in compiler to make the removal PR later smaller.
 2023-01-17 23:17:51 -08:00
Tomasz Miąsko
7fe68571fa Lazy dominator tree construction in borrowck 
Motivated by the observation that sometimes constructed dominator tree
was never queried.
 2023-01-17 22:00:41 +01:00
Matthias Krüger
68f12338af
Rollup merge of #104505 - WaffleLapkin:no-double-spaces-in-comments, r=jackh726 
Remove double spaces after dots in comments

Most of the comments do not have double spaces, so I assume these are typos.
 2023-01-17 20:21:25 +01:00
Maybe Waffle
6a28fb42a8 Remove double spaces after dots in comments 2023-01-17 08:09:33 +00:00
Maybe Waffle
fc6cda8603 rustc_data_structures: remove ref patterns and other artifacts of the past 2023-01-17 07:48:19 +00:00
Jakob Degen
f49126e3d6 Document wf constraints on control flow in cleanup blocks 
Also fixes a bug in dominator computation
 2023-01-16 14:51:33 -08:00
nils
fd7a159710 Fix uninlined_format_args for some compiler crates 
Convert all the crates that have had their diagnostic migration
completed (except save_analysis because that will be deleted soon and
apfloat because of the licensing problem).
 2023-01-05 19:01:12 +01:00
Nilstrieb
8bfd6450c7 A few small cleanups for newtype_index 
Remove the `..` from the body, only a few invocations used it and it's
inconsistent with rust syntax.

Use `;` instead of `,` between consts. As the Rust syntax gods inteded.
 2022-12-18 21:47:28 +01:00
KaDiWa
9bc69925cb
compiler: remove unnecessary imports and qualified paths 2022-12-10 18:45:34 +01:00
Rageking8
7122abaddf more dupe word typos 2022-10-14 12:57:56 +08:00
Nilstrieb
fc8b13cb96 Adapt rustc_data_structures tests to run in strict miri 
Some tests took too long and owning_ref is fundamentally flawed,
so don't run these tests or run them with a shorter N. This makes
miri with `-Zmiri-strict-provenance` usable to find UB.
 2022-06-04 17:46:29 +02:00
Mark Rousskov
4d89292785 Avoid exhausting stack space in dominator compression 2022-02-23 16:07:56 -05:00
pierwill
e6ff0bac1e rustc VecGraph: require the index type to implement Ord 2021-12-22 10:50:57 -06:00
pierwill
8df9248591 Remove PartialOrd and Ord from LocalDefId 
Implement `Ord`, `PartialOrd` for SpanData
 2021-12-22 10:50:57 -06:00