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[RFC 2867] Instruction set #75202

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[RFC 2867] Instruction set #75202

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3761eb8
add the nightly feature.
Lokathor Aug 5, 2020
09383f6
add the builtin attribute as a gated attribute.
Lokathor Aug 5, 2020
3a91e6f
spelling
Lokathor Aug 5, 2020
21d44f2
add required symbols.
Lokathor Aug 5, 2020
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3 changes: 3 additions & 0 deletions src/librustc_feature/active.rs
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Expand Up @@ -579,6 +579,9 @@ declare_features! (
/// Alloc calling `transmute` in const fn
(active, const_fn_transmute, "1.46.0", Some(53605), None),

/// Instruction set declarations for functions (RFC 2867)
(active, isa_attribute, "1.47.0", Some(74727), None),

// -------------------------------------------------------------------------
// feature-group-end: actual feature gates
// -------------------------------------------------------------------------
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5 changes: 5 additions & 0 deletions src/librustc_feature/builtin_attrs.rs
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Expand Up @@ -343,6 +343,11 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
experimental!(register_tool),
),

// RFC 2867
gated!(
instruction_set, AssumedUsed, template!(List: "set"), experimental!(isa_attribute),
),

// ==========================================================================
// Internal attributes: Stability, deprecation, and unsafe:
// ==========================================================================
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2 changes: 2 additions & 0 deletions src/librustc_span/symbol.rs
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Expand Up @@ -590,11 +590,13 @@ symbols! {
inlateout,
inline,
inout,
instruction_set,
intel,
into_iter,
into_result,
intrinsics,
irrefutable_let_patterns,
isa_attribute,
isize,
issue,
issue_5723_bootstrap,
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