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Miscompilation without "-fbounds-safety"

Status: Open.

#12137 In swiftlang/llvm-project;

· mikekben opened on Jan 16, 2026

[lldb] Assertion when printing an UnsafePointer<Int?> in lldb (branch stable/21.x)

Status: Open.

#12053 In swiftlang/llvm-project;

· gmondada opened on Jan 2, 2026

<code>commands/platform/launchgdbserver/TestPlatformLaunchGDBServer.py</code> is possibly flaky

flakey testThe test is flakey and needs to be investigatedThe test is flakey and needs to be investigated

Status: Open.

#12030 In swiftlang/llvm-project;

· bkhouri opened on Dec 19, 2025

[BoundsSafety] Support <code>counted_by</code> on <code>void *</code> (1-byte element semantics)

clang:bounds-safetyIssue relating to the experimental -fbounds-safety feature in ClangIssue relating to the experimental -fbounds-safety feature in Clang

Status: Open.

#11807 In swiftlang/llvm-project;

· rapidsna opened on Nov 12, 2025

[BoundsSafety] Align late parsing logic with upstream refactors

clang:bounds-safetyIssue relating to the experimental -fbounds-safety feature in ClangIssue relating to the experimental -fbounds-safety feature in Clang

Status: Open.

#11806 In swiftlang/llvm-project;

· rapidsna opened on Nov 12, 2025

Compiler Incorrectly Allows Protocol Methods on __kindof Type When Protocol is Visible

Status: Open.

#11776 In swiftlang/llvm-project;

· tripleCC opened on Nov 7, 2025

FreeBSD: lldb expression evaluation fails

LLDB for Swift

Status: Open.

#11760 In swiftlang/llvm-project;

· etcwilde opened on Nov 5, 2025

FreeBSD: ThreadSanitizer: main thread finished with ignores enabled

swift

Status: Open.

Bug

#11759 In swiftlang/llvm-project;

· etcwilde opened on Nov 5, 2025

Assertion failed: <code>assert(!SourceMgr.isLoadedSourceLocation(Loc) &amp;&amp; "Run out source location space");</code> clang/include/clang/Serialization/ASTReader.h:2471

swift

Windows

Status: Open.

#11734 In swiftlang/llvm-project;

· compnerd opened on Nov 3, 2025

Support building llvm-project as a DLL

Status: Open.

#11725 In swiftlang/llvm-project;

· compnerd opened on Oct 31, 2025

Swift main toolchain missing LLVM realtime sanitizer libraries

Status: Open.

#11715 In swiftlang/llvm-project;

· jcavar opened on Oct 28, 2025

Assembler failures are silently ignored

Status: Open.

#11593 In swiftlang/llvm-project;

· Steelskin opened on Oct 8, 2025