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[aarch64-pc-windows-gnullvm] Compiler miscompilations when PGO is performed

A-PGOArea: Profile-guided optimizations (PGO)Area: Profile-guided optimizations (PGO)

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

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

I-miscompileIssue: Correct Rust code lowers to incorrect machine codeIssue: Correct Rust code lowers to incorrect machine code

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

O-AArch64Armv8-A or later processors in AArch64 modeArmv8-A or later processors in AArch64 mode

O-windows-gnullvmTarget: *-windows-gnullvmTarget: *-windows-gnullvm

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.

#145084 In rust-lang/rust;

· ognevny opened on Aug 8, 2025

[opt-dist] Profile-guided optimization of LLVM regressed on Windows hosts

A-PGOArea: Profile-guided optimizations (PGO)Area: Profile-guided optimizations (PGO)

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

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

O-windowsOperating system: WindowsOperating system: Windows

O-windows-msvcToolchain: MSVC, Operating system: WindowsToolchain: MSVC, Operating system: Windows

Status: Open.

#144318 In rust-lang/rust;

· ognevny opened on Jul 22, 2025

-Cprofile-use cannot find file depending on RUSTFLAGS order

A-PGOArea: Profile-guided optimizations (PGO)Area: Profile-guided optimizations (PGO)

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

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.

#128476 In rust-lang/rust;

· TheIronBorn opened on Aug 1, 2024

Extend Profile-Guided Optimization guide with Sampling PGO

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

A-PGOArea: Profile-guided optimizations (PGO)Area: Profile-guided optimizations (PGO)

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.

#117023 In rust-lang/rust;

· zamazan4ik opened on Oct 21, 2023

pgo: -Cprofile-use can't find file

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

A-frontendArea: Compiler frontend (errors, parsing and HIR)Area: Compiler frontend (errors, parsing and HIR)

A-PGOArea: Profile-guided optimizations (PGO)Area: Profile-guided optimizations (PGO)

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

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

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.

#63609 In rust-lang/rust;

· matthiaskrgr opened on Aug 15, 2019