[all-commits] [llvm/llvm-project] ed4284: [Clang][LoongArch] Fix ABI handling of empty struc...

[Lu Weining via All-commits]

  Branch: refs/heads/release/17.x
  Home:   https://github.com/llvm/llvm-project
  Commit: ed4284a91f819e83bb0a021d8c76d85bf91036f9
      https://github.com/llvm/llvm-project/commit/ed4284a91f819e83bb0a021d8c76d85bf91036f9
  Author: Weining Lu <luweining at loongson.cn>
  Date:   2023-08-08 (Tue, 08 Aug 2023)

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

  Log Message:
  -----------
  [Clang][LoongArch] Fix ABI handling of empty structs in C++ to match GCC behaviour

GCC doesn't ignore non-zero-length array of empty structures in C++
while clang does. What this patch did is to match GCC's behaviour
although this rule is not documented in psABI.

Similar to D142327 for RISCV.

Reviewed By: xry111, xen0n

Differential Revision: https://reviews.llvm.org/D156116