bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Stabilize asm! and global_asm!

Browse source 
They are also removed from the prelude as per the decision in
https://github.com/rust-lang/rust/issues/87228.

stdarch and compiler-builtins are updated to work with the new, stable
asm! and global_asm! macros.
This commit is contained in:
Amanieu d'Antras 2021-12-10 00:15:33 +00:00
parent b3a55371a7
commit 44a3a66ee8
123 changed files with 540 additions and 1636 deletions
Download patch file Download diff file Expand all files Collapse all files

46
compiler/rustc_lint_defs/src/builtin.rs
View file

@ -2419,8 +2419,8 @@ declare_lint! {
///
/// ### Example
///
/// ```rust,ignore (fails on system llvm)
/// #![feature(asm)]
/// ```rust
/// use std::arch::asm;
///
/// fn main() {
/// #[cfg(target_arch="x86_64")]
@ -2430,19 +2430,7 @@ declare_lint! {
/// }
/// ```
///
/// This will produce:
///
/// ```text
/// warning: formatting may not be suitable for sub-register argument
/// --> src/main.rs:6:19
/// |
/// 6 | asm!("mov {0}, {0}", in(reg) 0i16);
/// | ^^^ ^^^ ---- for this argument
/// |
/// = note: `#[warn(asm_sub_register)]` on by default
/// = help: use the `x` modifier to have the register formatted as `ax`
/// = help: or use the `r` modifier to keep the default formatting of `rax`
/// ```
/// {{produces}}
///
/// ### Explanation
///
@ -2455,10 +2443,6 @@ declare_lint! {
/// register size, to alert you of possibly using the incorrect width. To
/// fix this, add the suggested modifier to the template, or cast the
/// value to the correct size.
///
/// See [register template modifiers] for more details.
///
/// [register template modifiers]: https://doc.rust-lang.org/nightly/unstable-book/library-features/asm.html#register-template-modifiers
pub ASM_SUB_REGISTER,
Warn,
"using only a subset of a register for inline asm inputs",
@ -2470,34 +2454,21 @@ declare_lint! {
///
/// ### Example
///
/// ```rust,ignore (fails on system llvm)
/// #![feature(asm)]
/// ```rust
/// use std::arch::asm;
///
/// fn main() {
/// #[cfg(target_arch="x86_64")]
/// unsafe {
/// asm!(
/// ".att_syntax",
/// "movl {0}, {0}", in(reg) 0usize
/// "movq %{0}, %{0}", in(reg) 0usize
/// );
/// }
/// }
/// ```
///
/// This will produce:
///
/// ```text
/// warning: avoid using `.att_syntax`, prefer using `options(att_syntax)` instead
/// --> test.rs:7:14
/// |
/// 7 | ".att_syntax",
/// | ^^^^^^^^^^^
/// 8 | "movq {0}, {0}", out(reg) _,
/// 9 | );
/// | - help: add option: `, options(att_syntax)`
/// |
/// = note: `#[warn(bad_asm_style)]` on by default
/// ```
/// {{produces}}
///
/// ### Explanation
///
@ -2739,7 +2710,8 @@ declare_lint! {
///
/// ```rust
/// #![feature(naked_functions)]
/// #![feature(asm)]
///
/// use std::arch::asm;
///
/// #[naked]
/// pub fn default_abi() -> u32 {