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[TBAA] Miss optimization for check redundancy load

llvm:optimizations

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#147449 In llvm/llvm-project;

· hstk30-hw opened on Jul 8, 2025

[Clang][TBAA] Clang's TBAA is too conservative than GCC when long type cast?

llvm:optimizations

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#146652 In llvm/llvm-project;

· hstk30-hw opened on Jul 2, 2025

Clang does not recognize hand-written buffer aliasing checks

clangClang issues not falling into any other categoryClang issues not falling into any other category

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#146401 In llvm/llvm-project;

· davidben opened on Jun 30, 2025

Store to potentially aliasing pointer causes LLVM to forget previously stored value

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#145399 In llvm/llvm-project;

· Kmeakin opened on Jun 23, 2025

Failure to recognize that <code>int</code> and <code>int[1]</code> cannot alias

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#145398 In llvm/llvm-project;

· Kmeakin opened on Jun 23, 2025

Incorrect result due to -new-struct-path-tbaa on strict-alias analysis

clang:codegenIR generation bugs: mangling, exceptions, etc.IR generation bugs: mangling, exceptions, etc.

miscompilation

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

Bug

#141578 In llvm/llvm-project;

· dongjianqiang2 opened on May 27, 2025

Theoretical strict aliasing violation in out_ptr_t operator void**?

libc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#133445 In llvm/llvm-project;

· davidben opened on Mar 28, 2025

[Clang] Missed case of TBAA with different derived classes with a common base class

clang:codegenIR generation bugs: mangling, exceptions, etc.IR generation bugs: mangling, exceptions, etc.

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#130958 In llvm/llvm-project;

· frederick-vs-ja opened on Mar 12, 2025

clang++ generates invalid code with <code>-finline-functions</code>

llvm:optimizations

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

undefined behaviour

Status: Open.

#126370 In llvm/llvm-project;

· igormunkin opened on Feb 8, 2025

[clang++] Loop vectorization not happening in outlined lambda function

clang:codegenIR generation bugs: mangling, exceptions, etc.IR generation bugs: mangling, exceptions, etc.

loopoptim

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

vectorization

Status: Open.

#124105 In llvm/llvm-project;

· kavitha-natarajan opened on Jan 23, 2025

[Struct Opt] A structure array accesses its member variables, the base address of the structure array is recalculated each time

backend:RISC-V

missed-optimization

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open.

#112830 In llvm/llvm-project;

· LiqinWeng opened on Oct 18, 2024

[TBAA] Emit "omnipotent char" for intrinsics with type cast

clangClang issues not falling into any other categoryClang issues not falling into any other category

clang:codegenIR generation bugs: mangling, exceptions, etc.IR generation bugs: mangling, exceptions, etc.

TBAAType-Based Alias Analysis / Strict AliasingType-Based Alias Analysis / Strict Aliasing

Status: Open (in progress).

llvm/llvm-projectnumber 107793

#107793 In llvm/llvm-project;

· huhu233 opened on Sep 9, 2024