From: "Alex Bennée" <alex.bennee@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: pbonzini@redhat.com, ehabkost@redhat.com, qemu-devel@nongnu.org
Subject: Re: [PATCH for-5.1?] target/i386: Save cc_op before loop insns
Date: Fri, 24 Jul 2020 20:23:01 +0100 [thread overview]
Message-ID: <87mu3osooa.fsf@linaro.org> (raw)
In-Reply-To: <20200720154028.477457-1-richard.henderson@linaro.org>
Richard Henderson <richard.henderson@linaro.org> writes:
> We forgot to update cc_op before these branch insns,
> which lead to losing track of the current eflags.
>
> Buglink: https://bugs.launchpad.net/qemu/+bug/1888165
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> target/i386/translate.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/target/i386/translate.c b/target/i386/translate.c
> index a1d31f09c1..caea6f5fb1 100644
> --- a/target/i386/translate.c
> +++ b/target/i386/translate.c
> @@ -7148,6 +7148,7 @@ static target_ulong disas_insn(DisasContext *s,
> CPUState *cpu)
At first I thought that was too broad to go in disas_insn and then I
realised it was one of those mega functions....
> l1 = gen_new_label();
> l2 = gen_new_label();
> l3 = gen_new_label();
> + gen_update_cc_op(s);
Seems legit:
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
<snip>
--
Alex Bennée
prev parent reply other threads:[~2020-07-24 19:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 15:40 [PATCH for-5.1?] target/i386: Save cc_op before loop insns Richard Henderson
2020-07-24 18:34 ` Richard Henderson
2020-07-24 18:53 ` Paolo Bonzini
2020-07-24 21:47 ` Richard Henderson
2020-07-24 19:23 ` Alex Bennée [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87mu3osooa.fsf@linaro.org \
--to=alex.bennee@linaro.org \
--cc=ehabkost@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=richard.henderson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.