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Intrinsics wrappers not being inlined

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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.

A-target-featureArea: Enabling/disabling target features like AVX, Neon, etc.Area: Enabling/disabling target features like AVX, Neon, etc.

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

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.

#139160 In rust-lang/rust;

· mxple opened on Mar 31, 2025

Unused Argument Warnings in Intrinsics Without Body

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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.

#135598 In rust-lang/rust;

· vayunbiyani opened on Jan 16, 2025

atomic RMW intrinsics: avoid unnecessary ptr/int conversions

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-strict-provenanceArea: Strict provenance for raw pointersArea: Strict provenance for raw pointers

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

Status: Open.

#134617 In rust-lang/rust;

· RalfJung opened on Dec 21, 2024

<code>-Zdefault-hidden-visibility</code> causes linking errors due to intrinsic-related calls

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-linkageArea: linking into static, shared libraries and binariesArea: linking into static, shared libraries and binaries

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

requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.

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.

#123427 In rust-lang/rust;

· chbaker0 opened on Apr 3, 2024

Improve <code>core::intrinsics::black_box</code> output.

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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

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.

#99899 In rust-lang/rust;

· thomcc opened on Jul 29, 2022

Decide on when MIR Discriminant() operation is UB

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-MIRArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.htmlArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html

A-mir-optArea: MIR optimizationsArea: MIR optimizations

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

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.

#91095 In rust-lang/rust;

· RalfJung opened on Nov 20, 2021

simd_shuffle, simd_insert, simd_extract should use const generics

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-SIMDArea: SIMD (Single Instruction Multiple Data)Area: SIMD (Single Instruction Multiple Data)

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.

#85229 In rust-lang/rust;

· RalfJung opened on May 12, 2021

Unnecessary stack writes when using write_volatile with arrays

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

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.

#82944 In rust-lang/rust;

· niluxv opened on Mar 9, 2021

Can rustc support to call llvm intrinisc API which contains type like llvm_v4i1_ty?

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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

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.

#81552 In rust-lang/rust;

· kangshan1157 opened on Jan 30, 2021

Invalid monomorphization when <code>-C link-dead-code</code> is used

-Clink-dead-codeLinkage option: -Clink-dead-codeLinkage option: -Clink-dead-code

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-SIMDArea: SIMD (Single Instruction Multiple Data)Area: SIMD (Single Instruction Multiple Data)

D-confusingDiagnostics: Confusing error or lint that should be reworked.Diagnostics: Confusing error or lint that should be reworked.

I-monomorphizationIssue: An error at monomorphization time.Issue: An error at monomorphization time.

P-mediumMedium priorityMedium priority

requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.

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.

#77529 In rust-lang/rust;

· xd009642 opened on Oct 4, 2020

Expose <code>type_name()</code> method on Any.

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#68379 In rust-lang/rust;

· rickvanprim opened on Jan 20, 2020

Failed to build rpm-ostree on ppc64le: multiple definition of `__fixdfdi'

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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

O-PowerPCTarget: PowerPC processorsTarget: PowerPC processors

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#61063 In rust-lang/rust;

· cuviper opened on May 23, 2019