[all-commits] [llvm/llvm-project] 938dea: [clang][RISCV] Fix ABI lowering for _Float16 for F...

[Alex Bradbury via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 938deaad8ac92d9a45db8ef2d8a71fbf04958d90
      https://github.com/llvm/llvm-project/commit/938deaad8ac92d9a45db8ef2d8a71fbf04958d90
  Author: Alex Bradbury <asb at igalia.com>
  Date:   2023-03-26 (Sun, 26 Mar 2023)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/CodeGen/TargetInfo.cpp
    M clang/test/CodeGen/RISCV/riscv32-abi.c
    M clang/test/CodeGen/RISCV/riscv64-abi.c

  Log Message:
  -----------
  [clang][RISCV] Fix ABI lowering for _Float16 for FP ABIs

For trivial cases (`_Float16` as a standalone argument), it was
previously correctly lowered to half. But the logic for catching cases
involving structs was gated off, as at the time that logic was written
the ABI for half was unclear.

This patch fixes that and adds a release note.

Differential Revision: https://reviews.llvm.org/D145074