Open Source Portfolio

This is a curated list of my open source contributions to projects particularly within the LLVM ecosystem. My work spans Clang/LLVM, MLIR, and ClangIR, involving everything from crash fixes and IR validation to codegen and lowering support.

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LLVM / MLIR

Clang

Improved readability and maintainability of diagnostic logic:

• [clang][diagnostics] Refactor note_constexpr_invalid_cast to use enum_select
  PR #130868

• [clang][diagnostics] Refactor warn_doc_container_decl_mismatch to use enum_select PR #147120

• [clang][diagnostics] Refactor warn_doc_api_container_decl_mismatch to use enum_select PR #146433

MLIR

• [mlir][linalg] Add check for reduction operation in contraction body
  Prevented a crash in the linalg-specialize-generic-ops pass by verifying the presence of a valid reduction op.
  PR #123134

• [mlir][affine] Add check for affine.for bound map results
  Added a check to catch affine loops with bound maps that have no results.
  PR #127105

• [mlir][IR] Skip zero-result functions in test-func-erase-result pass
  Fixed an assertion error by ensuring functions with no results are skipped.
  PR #127941

• [mlir][affine] Fix crash in affine-loop-fusion with empty op list
  Guarded against empty input to getInnermostCommonLoop.
  PR #144841

Documentation

• [LangRef] Fix code segment and numbering in 'call' instruction
  Fixed a formatting bug in the documentation of the call instruction.
  Fixes #122084

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ClangIR

CodeGen and Builtin Support

• Add support for __builtin_elementwise_acos
  Replaced LLVMIntrinsicCallOp with ACosOp in CIR.
  PR #1507

• Add support for __builtin_elementwise_asin
  Added CIR_ASinOp and full codegen support.
  PR #1511

• Add support for __builtin_elementwise_atan
  Added CIR_ATanOp and full codegen support.
  PR #1512

ThroughMLIR Lowering

• Lowering for ATanOp
  Implemented ThroughMLIR lowering for ATanOp.
  PR #1528

• Lowering for ACosOp
  Implemented ThroughMLIR lowering for ACosOp.
  PR #1529

• Lowering for ASinOp
  Implemented ThroughMLIR lowering for ASinOp.
  PR #1530

X86 Builtins

• Add support for X86 builtins: tzcnt_u16, tzcnt_u32, tzcnt_u64
  Implemented full codegen for these low-level intrinsics.
  PR #1691

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