Calling `Cargo::configure_linker` unconditionally slows down certain
commands (e.g., "check" command) without providing any benefit.

Signed-off-by: onur-ozkan <work@onurozkan.dev>

For commands like check/clean there is no need to check for target tools.
Avoiding this check can also speed up the process.

Signed-off-by: onur-ozkan <work@onurozkan.dev>

…function merging

Resolves rust-lang#129438

The `-Zmerge-functions=disabled` compile flag exists for this purpose.

... can not be correctly gated using #[cfg] macro

The existing phrasing implies that a notification must be received for `wait_while` to return. The phrasing is changed to better reflect the behavior.

Naked functions can only contain inline asm, so any instrumentation
inserted by sanitizers is illegal. Don't request it.

Fixes rust-lang#129224.

Signed-off-by: cuishuang <imcusg@gmail.com>

This PR detects misspelled keywords using two heuristics:

1. Lowercasing the unexpected identifier.
2. Using edit distance to find a keyword similar to the unexpected identifier.

However, it does not detect each and every misspelled keyword to
minimize false positives and ambiguities. More details about the
implementation can be found in the comments.

bypass linker configuration and cross target check for specific commands

Avoids configuring the linker and checking cross-target-specific tools unless necessary.

Resolves rust-lang#128180

cc `@ChrisDenton`

…merging, r=Mark-Simulacrum

[testsuite][cleanup] Remove all usages of `dont_merge` hack to avoid function merging

Resolves rust-lang#129438

The `-Zmerge-functions=disabled` compile flag exists for this purpose.

Adjust doc comment of Condvar::wait_while

The existing phrasing implies that a notification must be received for `wait_while` to return. The phrasing is changed to make no such implication.

…s-suggestion, r=cjgillot

Implement suggestions for `elided_named_lifetimes`

A follow-up to rust-lang#129207, as per rust-lang#129207 (comment).

r? cjgillot

I will probably squash this a bit, but later.

`@rustbot` label +A-lint

Do not request sanitizers for naked functions

Naked functions can only contain inline asm, so any instrumentation inserted by sanitizers is illegal. Don't request it.

Fixes rust-lang#129224.

…, r=chenyukang

Add Suggestions for Misspelled Keywords

Fixes rust-lang#97793

This PR detects misspelled keywords using two heuristics:

1. Lowercasing the unexpected identifier.
2. Using edit distance to find a keyword similar to the unexpected identifier.

However, it does not detect each and every misspelled keyword to
minimize false positives and ambiguities. More details about the
implementation can be found in the comments.

…RalfJung

s390x: Fix a regression related to backchain feature

In rust-lang#127506, we introduced a new IBM Z-specific target feature, `backchain`.

This particular `target-feature` was available as a function-level attribute in LLVM 17 and below, so some hacks were used to avoid blowing up LLVM when querying the supported LLVM features.

This led to an unfortunate regression where `cfg!(target-feature = "backchain")` will always return true.

This pull request aims to fix this issue, and a test has been introduced to ensure it will never happen again.

Fixes rust-lang#129927.

r? `@RalfJung`

…on, r=davidtwco

Don't store region in `CapturedPlace`

It's not necessary anymore, since we erase all regions in writeback anyways.

Add missing quotation marks