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Rollup of 6 pull requests - #68121
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Centril wants to merge 43 commits into
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This also allows us to use the `const_eval` query again without causing cycles
This flag opts out of the min-const-fn checks entirely, which is usually not what we want. The few cases where the flag is still necessary have been annotated.
Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
…ce, r=oli-obk Promote references to constants instead of statics r? @oli-obk
…acrum Collector tweaks r? @Mark-Simulacrum
Compile some CGUs in parallel at the start of codegen This brings the compilation time for `syntex_syntax` from 11.542s to 10.453s with 6 threads in non-incremental debug mode. Just compiling `n` CGUs in parallel at the beginning of codegen seems sufficient to get rid of the staircase effect, at least for `syntex_syntax`. Based on rust-lang#67777. r? @michaelwoerister cc @alexcrichton@Mark-Simulacrum
Rename Result::as_deref_ok to as_deref Addresses rust-lang#50264 (comment) r? @dtolnay
…lan-DPC clean up E0185 explanation r? @Dylan-DPC
…r=Centril Don't require `allow_internal_unstable` unless `staged_api` is enabled. rust-lang#63770 changed `qualify_min_const_fn` to require `allow_internal_unstable` for *all* crates that used an unstable feature, regardless of whether `staged_api` was enabled or the `fn` that used that feature was stably const. In practice, this meant that every crate in the ecosystem that wanted to use nightly features added `#![feature(const_fn)]`, which skips `qualify_min_const_fn` entirely. After this PR, crates that do not have `#![feature(staged_api)]` will only need to enable the feature they are interested in. For example, `#![feature(const_if_match)]` will be enough to enable `if` and `match` in constants. Crates with `staged_api` (e.g., `libstd`) require `#[allow_internal_unstable]` to be added to a function if it uses nightly features unless that function is also marked `#[rustc_const_unstable]`. This prevents proliferation of `#[allow_internal_unstable]` into functions that are not callable in a `const` context on stable. r? @oli-obk (author of rust-lang#63770) cc @Centril
Centril
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Jan 11, 2020
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@bors r+ p=6 rollup=never |
bors
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Jan 11, 2020
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📌 Commit 28a63cd has been approved by |
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Successful merges:
allow_internal_unstableunlessstaged_apiis enabled. #68114 (Don't requireallow_internal_unstableunlessstaged_apiis enabled.)Failed merges:
r? @ghost