[all-commits] [llvm/llvm-project] a14d8b: [CIR] Upstream vtable thunk handling (#183629)

[Andy Kaylor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a14d8b2e36d4babd00509e85e79a14a48af148b2
      https://github.com/llvm/llvm-project/commit/a14d8b2e36d4babd00509e85e79a14a48af148b2
  Author: Andy Kaylor <akaylor at nvidia.com>
  Date:   2026-03-02 (Mon, 02 Mar 2026)

  Changed paths:
    M clang/include/clang/CIR/MissingFeatures.h
    M clang/lib/CIR/CodeGen/CIRGenCXXABI.cpp
    M clang/lib/CIR/CodeGen/CIRGenCXXABI.h
    M clang/lib/CIR/CodeGen/CIRGenFunction.cpp
    M clang/lib/CIR/CodeGen/CIRGenFunction.h
    M clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp
    M clang/lib/CIR/CodeGen/CIRGenModule.cpp
    M clang/lib/CIR/CodeGen/CIRGenModule.h
    M clang/lib/CIR/CodeGen/CIRGenVTables.cpp
    M clang/lib/CIR/CodeGen/CIRGenVTables.h
    A clang/test/CIR/CodeGen/thunks.cpp

  Log Message:
  -----------
  [CIR] Upstream vtable thunk handling (#183629)

This implements vtable thunk handling in CIR based on the incubator
code, but also compared against the latest Clang LLVM IR codegen.

Eventually, we'll want to create CIR abstractions for all of this and
move the CXXABI-specific details into the CXXABI lowering pass. For now,
we just implement it directly in codegen.



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