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From: Peter Maydell <peter.maydell@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Subject: Re: [PATCH v4 03/16] meson: Split test for __int128_t type from __int128_t arithmetic
Date: Tue, 30 May 2023 14:47:00 +0100	[thread overview]
Message-ID: <CAFEAcA_15ewWUW4xEb0fYmt5=6FH+dPDcVEh1__6Kfcc3GPnZA@mail.gmail.com> (raw)
In-Reply-To: <20230526002334.1760495-4-richard.henderson@linaro.org>

On Fri, 26 May 2023 at 01:26, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Older versions of clang have missing runtime functions for arithmetic
> with -fsanitize=undefined (see 464e3671f9d5c), so we cannot use
> __int128_t for implementing Int128.  But __int128_t is present,
> data movement works, and can be use for atomic128.

"and it can be used"

>
> Probe for both CONFIG_INT128_TYPE and CONFIG_INT128, adjust
> qemu/int128.h to define Int128Alias if CONFIG_INT128_TYPE,
> and adjust the meson probe for atomics to use has_int128_type.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM


  reply	other threads:[~2023-05-30 13:47 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-26  0:23 [PATCH v4 00/16] tcg: Improvements to atomic128 Richard Henderson
2023-05-26  0:23 ` [PATCH v4 01/16] tcg: Fix register move type in tcg_out_ld_helper_ret Richard Henderson
2023-05-30 13:36   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit Richard Henderson
2023-05-30 13:44   ` Peter Maydell
2023-05-30 13:58     ` Richard Henderson
2023-05-30 14:06       ` Peter Maydell
2023-05-30 14:29         ` Richard Henderson
2023-05-30 14:48           ` Peter Maydell
2023-05-30 15:09             ` Richard Henderson
2023-05-30 15:18               ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 03/16] meson: Split test for __int128_t type from __int128_t arithmetic Richard Henderson
2023-05-30 13:47   ` Peter Maydell [this message]
2023-05-26  0:23 ` [PATCH v4 04/16] qemu/atomic128: Add x86_64 atomic128-ldst.h Richard Henderson
2023-05-26  0:23 ` [PATCH v4 05/16] tcg/i386: Support 128-bit load/store Richard Henderson
2023-05-30 15:02   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 06/16] tcg/aarch64: Rename temporaries Richard Henderson
2023-05-26  0:23 ` [PATCH v4 07/16] tcg/aarch64: Reserve TCG_REG_TMP1, TCG_REG_TMP2 Richard Henderson
2023-05-30 13:52   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 08/16] tcg/aarch64: Simplify constraints on qemu_ld/st Richard Henderson
2023-05-30 13:55   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 09/16] tcg/aarch64: Support 128-bit load/store Richard Henderson
2023-05-26  0:23 ` [PATCH v4 10/16] tcg/ppc: " Richard Henderson
2023-05-26  0:23 ` [PATCH v4 11/16] tcg/s390x: " Richard Henderson
2023-05-26  0:23 ` [PATCH v4 12/16] accel/tcg: Extract load_atom_extract_al16_or_al8 to host header Richard Henderson
2023-05-30 13:58   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 13/16] accel/tcg: Extract store_atom_insert_al16 " Richard Henderson
2023-05-30 13:59   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 14/16] accel/tcg: Add x86_64 load_atom_extract_al16_or_al8 Richard Henderson
2023-05-30 14:01   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 15/16] accel/tcg: Add aarch64 lse2 load_atom_extract_al16_or_al8 Richard Henderson
2023-05-30 14:02   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 16/16] accel/tcg: Add aarch64 store_atom_insert_al16 Richard Henderson
2023-05-30 14:04   ` Peter Maydell

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