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Rollup merge of #91355 - alexcrichton:stabilize-thread-local-const, r=m-ou-se

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std: Stabilize the `thread_local_const_init` feature

This commit is intended to follow the stabilization disposition of the
FCP that has now finished in #84223. This stabilizes the ability to flag
thread local initializers as `const` expressions which enables the macro
to generate more efficient code for accessing it, notably removing
runtime checks for initialization.

More information can also be found in #84223 as well as the tests where
the feature usage was removed in this PR.

Closes #84223
This commit is contained in:
Matthias Krüger 2021-12-05 00:38:00 +01:00 • committed by GitHub
commit 23012b5200
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10 changed files with 1 additions and 34 deletions
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5
library/std/src/lib.rs
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@ -216,10 +216,7 @@
// std may use features in a platform-specific way
#![allow(unused_features)]
#![feature(rustc_allow_const_fn_unstable)]
#![cfg_attr(
test,
feature(internal_output_capture, print_internals, update_panic_count, thread_local_const_init)
)]
#![cfg_attr(test, feature(internal_output_capture, print_internals, update_panic_count))]
#![cfg_attr(
all(target_vendor = "fortanix", target_env = "sgx"),
feature(slice_index_methods, coerce_unsized, sgx_platform)