On 5/24/23 11:32, Richard Henderson wrote:
> Changes for v3:
> * Most of the v2 patch set merged, except x86_64 atomic128-ldst.h,
> which failed testing with clang-11 with debian 11.
>
> * New patch to change __int128_t detection.
>
> * This in turn enabled CONFIG_ATOMIC128, which was not ideal.
> This clang bug/mis-feature of using a cmpxchg sequence for
> implementing __atomic_load_n was already noted for aarch64,
> so I should have expected it would also be true for x86_64.
> Given that I am adding inline assembly for CPUINFO_ATOMIC_VMOVDQA
> anyway, this isn't a big deal, but I did need to adjust the ifdefs.
>
>
> r~
>
>
> Richard Henderson (2):
> meson: Split test for __int128_t type from __int128_t arithmetic
> qemu/atomic128: Add x86_64 atomic128-ldst.h
>
> meson.build | 15 +++--
> host/include/x86_64/host/atomic128-ldst.h | 68 +++++++++++++++++++++++
> include/qemu/int128.h | 4 +-
> 3 files changed, 80 insertions(+), 7 deletions(-)
> create mode 100644 host/include/x86_64/host/atomic128-ldst.h
>
Superseded by
Message-Id: <20230526002334.1760495-1-richard.henderson@linaro.org>
r~