[all-commits] [llvm/llvm-project] 03f4d4: [CIR] Add CxxCTorAttr, CxxDTorAttr, CxxAssignAttr, ...

[Hendrik Hübner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 03f4d4d492b3f5e68645eac4e907f3f0fc7a4489
      https://github.com/llvm/llvm-project/commit/03f4d4d492b3f5e68645eac4e907f3f0fc7a4489
  Author: Hendrik Hübner <117831077+HendrikHuebner at users.noreply.github.com>
  Date:   2025-11-19 (Wed, 19 Nov 2025)

  Changed paths:
    M clang/include/clang/CIR/Dialect/IR/CIRAttrs.td
    M clang/include/clang/CIR/Dialect/IR/CIROps.td
    M clang/lib/CIR/CodeGen/CIRGenClass.cpp
    M clang/lib/CIR/CodeGen/CIRGenFunction.cpp
    M clang/lib/CIR/CodeGen/CIRGenModule.cpp
    M clang/lib/CIR/CodeGen/CIRGenModule.h
    M clang/lib/CIR/Dialect/IR/CIRDialect.cpp
    M clang/lib/CIR/Dialect/Transforms/LoweringPrepare.cpp
    A clang/test/CIR/CodeGen/cxx-special-member-attr.cpp
    M clang/test/CIR/IR/func.cir

  Log Message:
  -----------
  [CIR] Add CxxCTorAttr, CxxDTorAttr, CxxAssignAttr, CxxSpecialMemberAttr to cir::FuncOp (#167975)

This PR adds a special member attribute to `cir::FuncOp`. This attribute
is also present in the incubator repo. Additionally, I added a
"is_trivial" flag, to mark trivial members. I think that might be useful
when trying to replace calls to the copy constructor with memcpy for
example, but please let me know your thoughts on this. [Here in the
incubator
repo](https://github.com/llvm/clangir/blob/823e943d1b9aaba0fc46f880c5a6ac8c29fc761d/clang/lib/CIR/Dialect/Transforms/LoweringPrepare.cpp#L1537-L1550)
this function is called `LowerTrivialConstructorCall`, but I don't see a
check that ensures the constructor is actually trivial.



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