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Tracking Issue for <code>asm_cfg</code>: <code>#[cfg(...)]</code> within <code>asm!</code>

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#140364 In rust-lang/rust;

· folkertdev opened on Apr 27, 2025

Inline assembly: semicolon comments ignored

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#138587 In rust-lang/rust;

· itrTie opened on Mar 17, 2025

Support for pointers with asm_const

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

A-rust-for-linuxRelevant for the Rust-for-Linux projectRelevant for the Rust-for-Linux project

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

E-mediumCall for participation: Medium difficulty. Experience needed to fix: Intermediate.Call for participation: Medium difficulty. Experience needed to fix: Intermediate.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

I-lang-radarItems that are on lang's radar and will need eventual work or consideration.Items that are on lang's radar and will need eventual work or consideration.

P-lowLow priorityLow priority

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#128464 In rust-lang/rust;

· Darksonn opened on Jul 31, 2024

Tracking Issue for asm_goto_with_outputs

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

Status: Open.

#119364 In rust-lang/rust;

· nbdd0121 opened on Dec 27, 2023

Compiler SIGSEGV when compiling inline asm in wasm32-wasi

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

C-bugCategory: This is a bug.Category: This is a bug.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

I-crashIssue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.

Status: Open.

#115886 In rust-lang/rust;

· LaoLittle opened on Sep 16, 2023

Tracking Issue for asm_experimental_arch

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

Status: Open.

#93335 In rust-lang/rust;

· Amanieu opened on Jan 26, 2022

Tracking Issue for asm_unwind

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

Status: Open.

#93334 In rust-lang/rust;

· Amanieu opened on Jan 26, 2022

rustc SIGSEGV on asm macro when no more registers are availaible

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

C-bugCategory: This is a bug.Category: This is a bug.

E-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.Call for participation: An issue has been fixed and does not reproduce, but no test has been added.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#90815 In rust-lang/rust;

· marysaka opened on Nov 12, 2021

LLVM-reserved registers can't be used in inline assembly

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#85056 In rust-lang/rust;

· jethrogb opened on May 7, 2021

global_asm! rejects real mode far jmp even if correct

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

C-bugCategory: This is a bug.Category: This is a bug.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

O-x86_32Target: x86 processors, 32 bit (like i686-*) (IA-32)Target: x86 processors, 32 bit (like i686-*) (IA-32)

O-x86_64Target: x86-64 processors (like x86_64-*) (also known as amd64 and x64)Target: x86-64 processors (like x86_64-*) (also known as amd64 and x64)

Status: Open.

#84676 In rust-lang/rust;

· Qubasa opened on Apr 28, 2021

Contents from global_asm! leak into other assemblies

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

C-bugCategory: This is a bug.Category: This is a bug.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#81838 In rust-lang/rust;

· nagisa opened on Feb 6, 2021

asm! should automatically rewrite labels in assembly code

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

Status: Open.

#81088 In rust-lang/rust;

· Amanieu opened on Jan 16, 2021