[all-commits] [llvm/llvm-project] 375d65: [CIR] Implement EH lowering to Itanium form and LL...

[Andy Kaylor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 375d65ee8de7dd65e19faab567db2799a52dfe52
      https://github.com/llvm/llvm-project/commit/375d65ee8de7dd65e19faab567db2799a52dfe52
  Author: Andy Kaylor <akaylor at nvidia.com>
  Date:   2026-03-03 (Tue, 03 Mar 2026)

  Changed paths:
    M clang/include/clang/CIR/Dialect/IR/CIROps.td
    M clang/include/clang/CIR/Dialect/Passes.h
    M clang/include/clang/CIR/Dialect/Passes.td
    M clang/include/clang/CIR/MissingFeatures.h
    M clang/lib/CIR/Dialect/Transforms/CMakeLists.txt
    A clang/lib/CIR/Dialect/Transforms/EHABILowering.cpp
    M clang/lib/CIR/Lowering/CIRPasses.cpp
    M clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
    M clang/test/CIR/CodeGen/try-catch-tmp.cpp
    M clang/test/CIR/CodeGen/try-catch.cpp
    A clang/test/CIR/Transforms/eh-abi-lowering-itanium.cir
    M clang/tools/cir-opt/cir-opt.cpp

  Log Message:
  -----------
  [CIR] Implement EH lowering to Itanium form and LLVM IR (#184386)

This introduces a new pass to lower from a flattened, target-independent
form of CIR to a form that uses Itanium-specific representation for
exception handling. It also includes a small amount of code needed to
lower the Itanium form to LLVM IR.

Substantial amounts of this PR were created using agentic AI tools, but
I have carefully reviewed the code, comments, and tests and made changes
as needed.



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