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update cfg(bootstrap)

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This commit is contained in:
Josh Stone 2025-02-18 09:10:45 -08:00
parent 82ad08ea7f
commit 3c45324e67
22 changed files with 17 additions and 569 deletions
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25
compiler/rustc_data_structures/src/flock.rs
View File

@ -4,31 +4,6 @@
//! green/native threading. This is just a bare-bones enough solution for
//! librustdoc, it is not production quality at all.
#[cfg(bootstrap)]
cfg_match! {
cfg(target_os = "linux") => {
mod linux;
use linux as imp;
}
cfg(target_os = "redox") => {
mod linux;
use linux as imp;
}
cfg(unix) => {
mod unix;
use unix as imp;
}
cfg(windows) => {
mod windows;
use self::windows as imp;
}
_ => {
mod unsupported;
use unsupported as imp;
}
}
#[cfg(not(bootstrap))]
cfg_match! {
target_os = "linux" => {
mod linux;

63
compiler/rustc_data_structures/src/profiling.rs
View File

@ -860,69 +860,6 @@ fn get_thread_id() -> u32 {
}
// Memory reporting
#[cfg(bootstrap)]
cfg_match! {
cfg(windows) => {
pub fn get_resident_set_size() -> Option<usize> {
use std::mem;
use windows::{
Win32::System::ProcessStatus::{K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
Win32::System::Threading::GetCurrentProcess,
};
let mut pmc = PROCESS_MEMORY_COUNTERS::default();
let pmc_size = mem::size_of_val(&pmc);
unsafe {
K32GetProcessMemoryInfo(
GetCurrentProcess(),
&mut pmc,
pmc_size as u32,
)
}
.ok()
.ok()?;
Some(pmc.WorkingSetSize)
}
}
cfg(target_os = "macos") => {
pub fn get_resident_set_size() -> Option<usize> {
use libc::{c_int, c_void, getpid, proc_pidinfo, proc_taskinfo, PROC_PIDTASKINFO};
use std::mem;
const PROC_TASKINFO_SIZE: c_int = mem::size_of::<proc_taskinfo>() as c_int;
unsafe {
let mut info: proc_taskinfo = mem::zeroed();
let info_ptr = &mut info as *mut proc_taskinfo as *mut c_void;
let pid = getpid() as c_int;
let ret = proc_pidinfo(pid, PROC_PIDTASKINFO, 0, info_ptr, PROC_TASKINFO_SIZE);
if ret == PROC_TASKINFO_SIZE {
Some(info.pti_resident_size as usize)
} else {
None
}
}
}
}
cfg(unix) => {
pub fn get_resident_set_size() -> Option<usize> {
let field = 1;
let contents = fs::read("/proc/self/statm").ok()?;
let contents = String::from_utf8(contents).ok()?;
let s = contents.split_whitespace().nth(field)?;
let npages = s.parse::<usize>().ok()?;
Some(npages * 4096)
}
}
_ => {
pub fn get_resident_set_size() -> Option<usize> {
None
}
}
}
#[cfg(not(bootstrap))]
cfg_match! {
windows => {
pub fn get_resident_set_size() -> Option<usize> {

1
compiler/rustc_lint/src/lib.rs
View File

@ -21,7 +21,6 @@
// tidy-alphabetical-start
#![allow(internal_features)]
#![cfg_attr(bootstrap, feature(trait_upcasting))]
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![doc(rust_logo)]
#![feature(array_windows)]

1
compiler/rustc_middle/src/lib.rs
View File

@ -29,7 +29,6 @@
#![allow(rustc::diagnostic_outside_of_impl)]
#![allow(rustc::potential_query_instability)]
#![allow(rustc::untranslatable_diagnostic)]
#![cfg_attr(bootstrap, feature(trait_upcasting))]
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![doc(rust_logo)]
#![feature(allocator_api)]

126
compiler/rustc_span/src/analyze_source_file.rs
View File

@ -29,132 +29,6 @@ pub(crate) fn analyze_source_file(src: &str) -> (Vec<RelativeBytePos>, Vec<Multi
(lines, multi_byte_chars)
}
#[cfg(bootstrap)]
cfg_match! {
cfg(any(target_arch = "x86", target_arch = "x86_64")) => {
fn analyze_source_file_dispatch(
src: &str,
lines: &mut Vec<RelativeBytePos>,
multi_byte_chars: &mut Vec<MultiByteChar>,
) {
if is_x86_feature_detected!("sse2") {
unsafe {
analyze_source_file_sse2(src, lines, multi_byte_chars);
}
} else {
analyze_source_file_generic(
src,
src.len(),
RelativeBytePos::from_u32(0),
lines,
multi_byte_chars,
);
}
}
/// Checks 16 byte chunks of text at a time. If the chunk contains
/// something other than printable ASCII characters and newlines, the
/// function falls back to the generic implementation. Otherwise it uses
/// SSE2 intrinsics to quickly find all newlines.
#[target_feature(enable = "sse2")]
unsafe fn analyze_source_file_sse2(
src: &str,
lines: &mut Vec<RelativeBytePos>,
multi_byte_chars: &mut Vec<MultiByteChar>,
) {
#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;
const CHUNK_SIZE: usize = 16;
let src_bytes = src.as_bytes();
let chunk_count = src.len() / CHUNK_SIZE;
// This variable keeps track of where we should start decoding a
// chunk. If a multi-byte character spans across chunk boundaries,
// we need to skip that part in the next chunk because we already
// handled it.
let mut intra_chunk_offset = 0;
for chunk_index in 0..chunk_count {
let ptr = src_bytes.as_ptr() as *const __m128i;
// We don't know if the pointer is aligned to 16 bytes, so we
// use `loadu`, which supports unaligned loading.
let chunk = unsafe { _mm_loadu_si128(ptr.add(chunk_index)) };
// For character in the chunk, see if its byte value is < 0, which
// indicates that it's part of a UTF-8 char.
let multibyte_test = unsafe { _mm_cmplt_epi8(chunk, _mm_set1_epi8(0)) };
// Create a bit mask from the comparison results.
let multibyte_mask = unsafe { _mm_movemask_epi8(multibyte_test) };
// If the bit mask is all zero, we only have ASCII chars here:
if multibyte_mask == 0 {
assert!(intra_chunk_offset == 0);
// Check for newlines in the chunk
let newlines_test = unsafe { _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8)) };
let mut newlines_mask = unsafe { _mm_movemask_epi8(newlines_test) };
let output_offset = RelativeBytePos::from_usize(chunk_index * CHUNK_SIZE + 1);
while newlines_mask != 0 {
let index = newlines_mask.trailing_zeros();
lines.push(RelativeBytePos(index) + output_offset);
// Clear the bit, so we can find the next one.
newlines_mask &= newlines_mask - 1;
}
} else {
// The slow path.
// There are multibyte chars in here, fallback to generic decoding.
let scan_start = chunk_index * CHUNK_SIZE + intra_chunk_offset;
intra_chunk_offset = analyze_source_file_generic(
&src[scan_start..],
CHUNK_SIZE - intra_chunk_offset,
RelativeBytePos::from_usize(scan_start),
lines,
multi_byte_chars,
);
}
}
// There might still be a tail left to analyze
let tail_start = chunk_count * CHUNK_SIZE + intra_chunk_offset;
if tail_start < src.len() {
analyze_source_file_generic(
&src[tail_start..],
src.len() - tail_start,
RelativeBytePos::from_usize(tail_start),
lines,
multi_byte_chars,
);
}
}
}
_ => {
// The target (or compiler version) does not support SSE2 ...
fn analyze_source_file_dispatch(
src: &str,
lines: &mut Vec<RelativeBytePos>,
multi_byte_chars: &mut Vec<MultiByteChar>,
) {
analyze_source_file_generic(
src,
src.len(),
RelativeBytePos::from_u32(0),
lines,
multi_byte_chars,
);
}
}
}
#[cfg(not(bootstrap))]
cfg_match! {
any(target_arch = "x86", target_arch = "x86_64") => {
fn analyze_source_file_dispatch(

10
library/alloc/src/boxed.rs
View File

@ -237,7 +237,6 @@ pub struct Box<
/// the newly allocated memory. This is an intrinsic to avoid unnecessary copies.
///
/// This is the surface syntax for `box <expr>` expressions.
#[cfg(not(bootstrap))]
#[rustc_intrinsic]
#[rustc_intrinsic_must_be_overridden]
#[unstable(feature = "liballoc_internals", issue = "none")]
@ -245,15 +244,6 @@ pub fn box_new<T>(_x: T) -> Box<T> {
unreachable!()
}
/// Transition function for the next bootstrap bump.
#[cfg(bootstrap)]
#[unstable(feature = "liballoc_internals", issue = "none")]
#[inline(always)]
pub fn box_new<T>(x: T) -> Box<T> {
#[rustc_box]
Box::new(x)
}
impl<T> Box<T> {
/// Allocates memory on the heap and then places `x` into it.
///

1
library/core/src/contracts.rs
View File

@ -1,5 +1,4 @@
//! Unstable module containing the unstable contracts lang items and attribute macros.
#![cfg(not(bootstrap))]
pub use crate::macros::builtin::{contracts_ensures as ensures, contracts_requires as requires};

35
library/core/src/intrinsics/mod.rs
View File

@ -78,11 +78,7 @@ pub mod simd;
use crate::sync::atomic::{self, AtomicBool, AtomicI32, AtomicIsize, AtomicU32, Ordering};
#[stable(feature = "drop_in_place", since = "1.8.0")]
#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)]
#[cfg_attr(
not(bootstrap),
rustc_allowed_through_unstable_modules = "import this function via `std::ptr` instead"
)]
#[rustc_allowed_through_unstable_modules = "import this function via `std::ptr` instead"]
#[deprecated(note = "no longer an intrinsic - use `ptr::drop_in_place` directly", since = "1.52.0")]
#[inline]
pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
@ -1901,11 +1897,7 @@ pub const fn forget<T: ?Sized>(_: T) {
/// }
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)]
#[cfg_attr(
not(bootstrap),
rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"
)]
#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"]
#[rustc_const_stable(feature = "const_transmute", since = "1.56.0")]
#[rustc_diagnostic_item = "transmute"]
#[rustc_nounwind]
@ -3260,7 +3252,7 @@ pub const fn three_way_compare<T: Copy>(_lhs: T, _rhss: T) -> crate::cmp::Orderi
/// Otherwise it's immediate UB.
#[rustc_const_unstable(feature = "disjoint_bitor", issue = "135758")]
#[rustc_nounwind]
#[cfg_attr(not(bootstrap), rustc_intrinsic)]
#[rustc_intrinsic]
#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
#[miri::intrinsic_fallback_is_spec] // the fallbacks all `assume` to tell Miri
pub const unsafe fn disjoint_bitor<T: ~const fallback::DisjointBitOr>(a: T, b: T) -> T {
@ -4070,7 +4062,6 @@ pub const unsafe fn const_deallocate(_ptr: *mut u8, _size: usize, _align: usize)
/// of not prematurely commiting at compile-time to whether contract
/// checking is turned on, so that we can specify contracts in libstd
/// and let an end user opt into turning them on.
#[cfg(not(bootstrap))]
#[rustc_const_unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)]
#[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)]
#[inline(always)]
@ -4086,7 +4077,6 @@ pub const fn contract_checks() -> bool {
///
/// By default, if `contract_checks` is enabled, this will panic with no unwind if the condition
/// returns false.
#[cfg(not(bootstrap))]
#[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)]
#[lang = "contract_check_requires"]
#[rustc_intrinsic]
@ -4101,7 +4091,6 @@ pub fn contract_check_requires<C: Fn() -> bool>(cond: C) {
///
/// By default, if `contract_checks` is enabled, this will panic with no unwind if the condition
/// returns false.
#[cfg(not(bootstrap))]
#[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)]
#[rustc_intrinsic]
pub fn contract_check_ensures<'a, Ret, C: Fn(&'a Ret) -> bool>(ret: &'a Ret, cond: C) {
@ -4400,11 +4389,7 @@ pub const fn ptr_metadata<P: ptr::Pointee<Metadata = M> + ?Sized, M>(_ptr: *cons
/// [`Vec::append`]: ../../std/vec/struct.Vec.html#method.append
#[doc(alias = "memcpy")]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)]
#[cfg_attr(
not(bootstrap),
rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"
)]
#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"]
#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")]
#[inline(always)]
#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
@ -4508,11 +4493,7 @@ pub const unsafe fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: us
/// ```
#[doc(alias = "memmove")]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)]
#[cfg_attr(
not(bootstrap),
rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"
)]
#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"]
#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")]
#[inline(always)]
#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
@ -4595,11 +4576,7 @@ pub const unsafe fn copy<T>(src: *const T, dst: *mut T, count: usize) {
/// ```
#[doc(alias = "memset")]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)]
#[cfg_attr(
not(bootstrap),
rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"
)]
#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"]
#[rustc_const_stable(feature = "const_ptr_write", since = "1.83.0")]
#[inline(always)]
#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces

1
library/core/src/lib.rs
View File

@ -247,7 +247,6 @@ pub mod autodiff {
pub use crate::macros::builtin::autodiff;
}
#[cfg(not(bootstrap))]
#[unstable(feature = "contracts", issue = "128044")]
pub mod contracts;

92
library/core/src/macros/mod.rs
View File

@ -196,95 +196,6 @@ pub macro assert_matches {
},
}
/// A macro for defining `#[cfg]` match-like statements.
///
/// It is similar to the `if/elif` C preprocessor macro by allowing definition of a cascade of
/// `#[cfg]` cases, emitting the implementation which matches first.
///
/// This allows you to conveniently provide a long list `#[cfg]`'d blocks of code
/// without having to rewrite each clause multiple times.
///
/// Trailing `_` wildcard match arms are **optional** and they indicate a fallback branch when
/// all previous declarations do not evaluate to true.
///
/// # Example
///
/// ```
/// #![feature(cfg_match)]
///
/// cfg_match! {
/// cfg(unix) => {
/// fn foo() { /* unix specific functionality */ }
/// }
/// cfg(target_pointer_width = "32") => {
/// fn foo() { /* non-unix, 32-bit functionality */ }
/// }
/// _ => {
/// fn foo() { /* fallback implementation */ }
/// }
/// }
/// ```
#[cfg(bootstrap)]
#[unstable(feature = "cfg_match", issue = "115585")]
#[rustc_diagnostic_item = "cfg_match"]
pub macro cfg_match {
// with a final wildcard
(
$(cfg($initial_meta:meta) => { $($initial_tokens:tt)* })+
_ => { $($extra_tokens:tt)* }
) => {
cfg_match! {
@__items ();
$((($initial_meta) ($($initial_tokens)*)),)+
(() ($($extra_tokens)*)),
}
},
// without a final wildcard
(
$(cfg($extra_meta:meta) => { $($extra_tokens:tt)* })*
) => {
cfg_match! {
@__items ();
$((($extra_meta) ($($extra_tokens)*)),)*
}
},
// Internal and recursive macro to emit all the items
//
// Collects all the previous cfgs in a list at the beginning, so they can be
// negated. After the semicolon is all the remaining items.
(@__items ($($_:meta,)*);) => {},
(
@__items ($($no:meta,)*);
(($($yes:meta)?) ($($tokens:tt)*)),
$($rest:tt,)*
) => {
// Emit all items within one block, applying an appropriate #[cfg]. The
// #[cfg] will require all `$yes` matchers specified and must also negate
// all previous matchers.
#[cfg(all(
$($yes,)?
not(any($($no),*))
))]
cfg_match! { @__identity $($tokens)* }
// Recurse to emit all other items in `$rest`, and when we do so add all
// our `$yes` matchers to the list of `$no` matchers as future emissions
// will have to negate everything we just matched as well.
cfg_match! {
@__items ($($no,)* $($yes,)?);
$($rest,)*
}
},
// Internal macro to make __apply work out right for different match types,
// because of how macros match/expand stuff.
(@__identity $($tokens:tt)*) => {
$($tokens)*
}
}
/// A macro for defining `#[cfg]` match-like statements.
///
/// It is similar to the `if/elif` C preprocessor macro by allowing definition of a cascade of
@ -324,7 +235,6 @@ pub macro cfg_match {
/// _ => { "Behind every successful diet is an unwatched pizza" }
/// }};
/// ```
#[cfg(not(bootstrap))]
#[unstable(feature = "cfg_match", issue = "115585")]
#[rustc_diagnostic_item = "cfg_match"]
pub macro cfg_match {
@ -1782,7 +1692,6 @@ pub(crate) mod builtin {
/// The attribute carries an argument token-tree which is
/// eventually parsed as a unary closure expression that is
/// invoked on a reference to the return value.
#[cfg(not(bootstrap))]
#[unstable(feature = "contracts", issue = "128044")]
#[allow_internal_unstable(contracts_internals)]
#[rustc_builtin_macro]
@ -1795,7 +1704,6 @@ pub(crate) mod builtin {
/// The attribute carries an argument token-tree which is
/// eventually parsed as an boolean expression with access to the
/// function's formal parameters
#[cfg(not(bootstrap))]
#[unstable(feature = "contracts", issue = "128044")]
#[allow_internal_unstable(contracts_internals)]
#[rustc_builtin_macro]

3
library/core/src/marker.rs
View File

@ -467,7 +467,7 @@ impl<T: ?Sized> Copy for &T {}
///
/// Bikeshed name for now.
#[unstable(feature = "bikeshed_guaranteed_no_drop", issue = "none")]
#[cfg_attr(not(bootstrap), lang = "bikeshed_guaranteed_no_drop")]
#[lang = "bikeshed_guaranteed_no_drop"]
pub trait BikeshedGuaranteedNoDrop {}
/// Types for which it is safe to share references between threads.
@ -1313,7 +1313,6 @@ pub macro CoercePointee($item:item) {
///
/// This trait is not intended to be implemented by users or used other than
/// validation, so it should never be stabilized.
#[cfg(not(bootstrap))]
#[lang = "coerce_pointee_validated"]
#[unstable(feature = "coerce_pointee_validated", issue = "none")]
#[doc(hidden)]

2
library/core/src/panicking.rs
View File

@ -294,7 +294,7 @@ fn panic_misaligned_pointer_dereference(required: usize, found: usize) -> ! {
#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold, optimize(size))]
#[cfg_attr(feature = "panic_immediate_abort", inline)]
#[track_caller]
#[cfg_attr(not(bootstrap), lang = "panic_null_pointer_dereference")] // needed by codegen for panic on null pointer deref
#[lang = "panic_null_pointer_dereference"] // needed by codegen for panic on null pointer deref
#[rustc_nounwind] // `CheckNull` MIR pass requires this function to never unwind
fn panic_null_pointer_dereference() -> ! {
if cfg!(feature = "panic_immediate_abort") {

6
library/core/src/range.rs
View File

@ -50,7 +50,7 @@ pub use crate::ops::{
/// assert_eq!(Range::from(3..5), Range { start: 3, end: 5 });
/// assert_eq!(3 + 4 + 5, Range::from(3..6).into_iter().sum());
/// ```
#[cfg_attr(not(bootstrap), lang = "RangeCopy")]
#[lang = "RangeCopy"]
#[derive(Clone, Copy, Default, PartialEq, Eq, Hash)]
#[unstable(feature = "new_range_api", issue = "125687")]
pub struct Range<Idx> {
@ -216,7 +216,7 @@ impl<T> From<legacy::Range<T>> for Range<T> {
/// assert_eq!(RangeInclusive::from(3..=5), RangeInclusive { start: 3, end: 5 });
/// assert_eq!(3 + 4 + 5, RangeInclusive::from(3..=5).into_iter().sum());
/// ```
#[cfg_attr(not(bootstrap), lang = "RangeInclusiveCopy")]
#[lang = "RangeInclusiveCopy"]
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
#[unstable(feature = "new_range_api", issue = "125687")]
pub struct RangeInclusive<Idx> {
@ -408,7 +408,7 @@ impl<T> From<legacy::RangeInclusive<T>> for RangeInclusive<T> {
/// assert_eq!(RangeFrom::from(2..), core::range::RangeFrom { start: 2 });
/// assert_eq!(2 + 3 + 4, RangeFrom::from(2..).into_iter().take(3).sum());
/// ```
#[cfg_attr(not(bootstrap), lang = "RangeFromCopy")]
#[lang = "RangeFromCopy"]
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
#[unstable(feature = "new_range_api", issue = "125687")]
pub struct RangeFrom<Idx> {

3
library/coretests/tests/lib.rs
View File

@ -153,10 +153,7 @@ mod intrinsics;
mod io;
mod iter;
mod lazy;
#[cfg(not(bootstrap))]
mod macros;
#[cfg(bootstrap)]
mod macros_bootstrap;
mod manually_drop;
mod mem;
mod net;

193
library/coretests/tests/macros_bootstrap.rs
View File

@ -1,193 +0,0 @@
#![allow(unused_must_use)]
#[allow(dead_code)]
trait Trait {
fn blah(&self);
}
#[allow(dead_code)]
struct Struct;
impl Trait for Struct {
cfg_match! {
cfg(feature = "blah") => {
fn blah(&self) {
unimplemented!();
}
}
_ => {
fn blah(&self) {
unimplemented!();
}
}
}
}
#[test]
fn assert_eq_trailing_comma() {
assert_eq!(1, 1,);
}
#[test]
fn assert_escape() {
assert!(r#"☃\backslash"#.contains("\\"));
}
#[test]
fn assert_ne_trailing_comma() {
assert_ne!(1, 2,);
}
#[rustfmt::skip]
#[test]
fn matches_leading_pipe() {
matches!(1, | 1 | 2 | 3);
}
#[test]
fn cfg_match_basic() {
cfg_match! {
cfg(target_pointer_width = "64") => { fn f0_() -> bool { true }}
}
cfg_match! {
cfg(unix) => { fn f1_() -> bool { true }}
cfg(any(target_os = "macos", target_os = "linux")) => { fn f1_() -> bool { false }}
}
cfg_match! {
cfg(target_pointer_width = "32") => { fn f2_() -> bool { false }}
cfg(target_pointer_width = "64") => { fn f2_() -> bool { true }}
}
cfg_match! {
cfg(target_pointer_width = "16") => { fn f3_() -> i32 { 1 }}
_ => { fn f3_() -> i32 { 2 }}
}
#[cfg(target_pointer_width = "64")]
assert!(f0_());
#[cfg(unix)]
assert!(f1_());
#[cfg(target_pointer_width = "32")]
assert!(!f2_());
#[cfg(target_pointer_width = "64")]
assert!(f2_());
#[cfg(not(target_pointer_width = "16"))]
assert_eq!(f3_(), 2);
}
#[test]
fn cfg_match_debug_assertions() {
cfg_match! {
cfg(debug_assertions) => {
assert!(cfg!(debug_assertions));
assert_eq!(4, 2+2);
}
_ => {
assert!(cfg!(not(debug_assertions)));
assert_eq!(10, 5+5);
}
}
}
#[cfg(target_pointer_width = "64")]
#[test]
fn cfg_match_no_duplication_on_64() {
cfg_match! {
cfg(windows) => {
fn foo() {}
}
cfg(unix) => {
fn foo() {}
}
cfg(target_pointer_width = "64") => {
fn foo() {}
}
}
foo();
}
#[test]
fn cfg_match_options() {
cfg_match! {
cfg(test) => {
use core::option::Option as Option2;
fn works1() -> Option2<u32> { Some(1) }
}
_ => { fn works1() -> Option<u32> { None } }
}
cfg_match! {
cfg(feature = "foo") => { fn works2() -> bool { false } }
cfg(test) => { fn works2() -> bool { true } }
_ => { fn works2() -> bool { false } }
}
cfg_match! {
cfg(feature = "foo") => { fn works3() -> bool { false } }
_ => { fn works3() -> bool { true } }
}
cfg_match! {
cfg(test) => {
use core::option::Option as Option3;
fn works4() -> Option3<u32> { Some(1) }
}
}
cfg_match! {
cfg(feature = "foo") => { fn works5() -> bool { false } }
cfg(test) => { fn works5() -> bool { true } }
}
assert!(works1().is_some());
assert!(works2());
assert!(works3());
assert!(works4().is_some());
assert!(works5());
}
#[test]
fn cfg_match_two_functions() {
cfg_match! {
cfg(target_pointer_width = "64") => {
fn foo1() {}
fn bar1() {}
}
_ => {
fn foo2() {}
fn bar2() {}
}
}
#[cfg(target_pointer_width = "64")]
{
foo1();
bar1();
}
#[cfg(not(target_pointer_width = "64"))]
{
foo2();
bar2();
}
}
fn _accepts_expressions() -> i32 {
cfg_match! {
cfg(unix) => { 1 }
_ => { 2 }
}
}
fn _allows_stmt_expr_attributes() {
let one = 1;
let two = 2;
cfg_match! {
cfg(unix) => { one * two; }
_ => { one + two; }
}
}

2
library/panic_unwind/src/lib.rs
View File

@ -14,6 +14,7 @@
#![no_std]
#![unstable(feature = "panic_unwind", issue = "32837")]
#![doc(issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")]
#![feature(cfg_emscripten_wasm_eh)]
#![feature(core_intrinsics)]
#![feature(lang_items)]
#![feature(panic_unwind)]
@ -25,7 +26,6 @@
// `real_imp` is unused with Miri, so silence warnings.
#![cfg_attr(miri, allow(dead_code))]
#![allow(internal_features)]
#![cfg_attr(not(bootstrap), feature(cfg_emscripten_wasm_eh))]
#![warn(unreachable_pub)]
#![deny(unsafe_op_in_unsafe_fn)]

2
library/std/src/lib.rs
View File

@ -274,7 +274,6 @@
// tidy-alphabetical-start
// stabilization was reverted after it hit beta
#![cfg_attr(not(bootstrap), feature(extended_varargs_abi_support))]
#![feature(alloc_error_handler)]
#![feature(allocator_internals)]
#![feature(allow_internal_unsafe)]
@ -292,6 +291,7 @@
#![feature(doc_masked)]
#![feature(doc_notable_trait)]
#![feature(dropck_eyepatch)]
#![feature(extended_varargs_abi_support)]
#![feature(f128)]
#![feature(f16)]
#![feature(formatting_options)]

2
library/unwind/src/lib.rs
View File

@ -1,5 +1,6 @@
#![no_std]
#![unstable(feature = "panic_unwind", issue = "32837")]
#![feature(cfg_emscripten_wasm_eh)]
#![feature(link_cfg)]
#![feature(staged_api)]
#![cfg_attr(not(target_env = "msvc"), feature(libc))]
@ -8,7 +9,6 @@
feature(simd_wasm64, wasm_exception_handling_intrinsics)
)]
#![allow(internal_features)]
#![cfg_attr(not(bootstrap), feature(cfg_emscripten_wasm_eh))]
#![deny(unsafe_op_in_unsafe_fn)]
// Force libc to be included even if unused. This is required by many platforms.

5
src/bootstrap/src/core/build_steps/test.rs
View File

@ -1847,10 +1847,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
}
// FIXME(136096): on macOS, we get linker warnings about duplicate `-lm` flags.
// NOTE: `stage > 1` here because `test --stage 1 ui-fulldeps` is a hack that compiles
// with stage 0, but links the tests against stage 1.
// cfg(bootstrap) - remove only the `stage > 1` check, leave everything else.
if suite == "ui-fulldeps" && compiler.stage > 1 && target.ends_with("darwin") {
if suite == "ui-fulldeps" && target.ends_with("darwin") {
flags.push("-Alinker_messages".into());
}

10
src/bootstrap/src/core/builder/cargo.rs
View File

@ -285,10 +285,7 @@ impl Cargo {
// Ignore linker warnings for now. These are complicated to fix and don't affect the build.
// FIXME: we should really investigate these...
// cfg(bootstrap)
if compiler.stage != 0 {
self.rustflags.arg("-Alinker-messages");
}
self.rustflags.arg("-Alinker-messages");
// Throughout the build Cargo can execute a number of build scripts
// compiling C/C++ code and we need to pass compilers, archivers, flags, etc
@ -1071,10 +1068,7 @@ impl Builder<'_> {
if mode == Mode::Rustc {
rustflags.arg("-Wrustc::internal");
// cfg(bootstrap) - remove this check when lint is in bootstrap compiler
if stage != 0 {
rustflags.arg("-Drustc::symbol_intern_string_literal");
}
rustflags.arg("-Drustc::symbol_intern_string_literal");
// FIXME(edition_2024): Change this to `-Wrust_2024_idioms` when all
// of the individual lints are satisfied.
rustflags.arg("-Wkeyword_idents_2024");

2
src/tools/compiletest/src/header/tests.rs
View File

@ -891,8 +891,6 @@ fn test_needs_target_has_atomic() {
}
#[test]
// FIXME: this test will fail against stage 0 until #137037 changes reach beta.
#[cfg_attr(bootstrap, ignore)]
fn test_rustc_abi() {
let config = cfg().target("i686-unknown-linux-gnu").build();
assert_eq!(config.target_cfg().rustc_abi, Some("x86-sse2".to_string()));

1
src/tools/miri/src/lib.rs
View File

@ -1,4 +1,3 @@
#![cfg_attr(bootstrap, feature(trait_upcasting))]
#![feature(rustc_private)]
#![feature(cell_update)]
#![feature(float_gamma)]