Kill dead code dominator code. #59811
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@bors r+ rollup Good catch. This wasn't removed when the uses were removed in de4dbe5#diff-8da257dba737a2318123538f324c54ceL162 |
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r? @oli-obk |
sanxiyn
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Apr 11, 2019
Kill dead code dominator code.
Hi,
Whilst fiddling around in the dominator code, I found some (I think) unused code. This code *was* used at the time it was imported, but over time it seems to have become redundant.
I've tested a build up to stage 1 with no problems. Maybe the tests will turn up something though.
P.S.
There is a FIXME comment in `dominators/mod.rs`:
```
pub fn is_dominated_by(&self, node: Node, dom: Node) -> bool {
// FIXME -- could be optimized by using post-order-rank
self.dominators(node).any(|n| n == dom)
}
```
I'm not sure of the intention of this comment. The `Dominators` struct already operates over post-order rank nodes. Any ideas?
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What about that FIXME? |
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I'm not sure. I'm guessing it's outdated, but I haven't checked deeply |
cramertj
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Apr 11, 2019
Kill dead code dominator code.
Hi,
Whilst fiddling around in the dominator code, I found some (I think) unused code. This code *was* used at the time it was imported, but over time it seems to have become redundant.
I've tested a build up to stage 1 with no problems. Maybe the tests will turn up something though.
P.S.
There is a FIXME comment in `dominators/mod.rs`:
```
pub fn is_dominated_by(&self, node: Node, dom: Node) -> bool {
// FIXME -- could be optimized by using post-order-rank
self.dominators(node).any(|n| n == dom)
}
```
I'm not sure of the intention of this comment. The `Dominators` struct already operates over post-order rank nodes. Any ideas?
Centril
added a commit
to Centril/rust
that referenced
this pull request
Apr 12, 2019
Kill dead code dominator code.
Hi,
Whilst fiddling around in the dominator code, I found some (I think) unused code. This code *was* used at the time it was imported, but over time it seems to have become redundant.
I've tested a build up to stage 1 with no problems. Maybe the tests will turn up something though.
P.S.
There is a FIXME comment in `dominators/mod.rs`:
```
pub fn is_dominated_by(&self, node: Node, dom: Node) -> bool {
// FIXME -- could be optimized by using post-order-rank
self.dominators(node).any(|n| n == dom)
}
```
I'm not sure of the intention of this comment. The `Dominators` struct already operates over post-order rank nodes. Any ideas?
bors
added a commit
that referenced
this pull request
Apr 12, 2019
Rollup of 15 pull requests Successful merges: - #59680 (Document the -Z flag to the rustc book) - #59711 (Add back the substring test) - #59806 (compiletest: Improve no_prefer_dynamic docs) - #59809 (Make trait_methods_not_found use a lock) - #59811 (Kill dead code dominator code.) - #59814 (Fix broken links on std::boxed doc page) - #59821 (improve unknown enum variant errors) - #59831 (Remove strange formatting in `Ordering` docs.) - #59836 (std::ops::Div examples: correct nominator to numerator) - #59857 (SGX target: fix cfg(test) build) - #59876 (Update TRPL to use mdbook 0.2) - #59880 (Remove note about transmute for float bitpatterns.) - #59889 (Update diagnostics.rs) - #59891 (Fix the link to sort_by_cached_key) - #59894 (save-analysis: Pull associated type definition using `qpath_def`) Failed merges: r? @ghost
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Hi,
Whilst fiddling around in the dominator code, I found some (I think) unused code. This code was used at the time it was imported, but over time it seems to have become redundant.
I've tested a build up to stage 1 with no problems. Maybe the tests will turn up something though.
P.S.
There is a FIXME comment in
dominators/mod.rs:I'm not sure of the intention of this comment. The
Dominatorsstruct already operates over post-order rank nodes. Any ideas?