[all-commits] [llvm/llvm-project] 4253fd: [LoongArch] Fix ABI mismatch with g++ when handlin...

[Lu Weining via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4253fdc2c462da61cc0deb74a43265665720c828
      https://github.com/llvm/llvm-project/commit/4253fdc2c462da61cc0deb74a43265665720c828
  Author: Lu Weining <luweining at loongson.cn>
  Date:   2023-11-04 (Sat, 04 Nov 2023)

  Changed paths:
    M clang/lib/CodeGen/Targets/LoongArch.cpp
    M clang/test/CodeGen/LoongArch/abi-lp64d-empty-structs.c
    M clang/test/CodeGen/LoongArch/abi-lp64d-empty-unions.c

  Log Message:
  -----------
  [LoongArch] Fix ABI mismatch with g++ when handling empty unions (#71025)

In g++, empty unions are not ignored like empty structs when flattening
structs to examine whether the structs can be passed via FARs in C++.
This patch aligns clang++ with g++.

Fix https://github.com/llvm/llvm-project/issues/70890.