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From: Richard Henderson <richard.henderson@linaro.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Alex Bennée" <alex.bennee@linaro.org>,
	qemu-devel <qemu-devel@nongnu.org>,
	"Habkost, Eduardo" <ehabkost@redhat.com>
Subject: Re: [PATCH for-5.1?] target/i386: Save cc_op before loop insns
Date: Fri, 24 Jul 2020 14:47:53 -0700	[thread overview]
Message-ID: <72edd3a8-55df-221c-5b4a-8e8f4a80b07d@linaro.org> (raw)
In-Reply-To: <CABgObfZVXtspgcoG_b33j5NcCSJFiBCXntT+388GWFuJ0aTh2A@mail.gmail.com>

On 7/24/20 11:53 AM, Paolo Bonzini wrote:
> Looks good, will queue when I am back---or just send a pull request yourself if
> you prefer.

Ok, will do.  Thanks.


r~

> 
> Paolo
> 
> Il ven 24 lug 2020, 20:35 Richard Henderson <richard.henderson@linaro.org
> <mailto:richard.henderson@linaro.org>> ha scritto:
> 
>     Ping?
> 
>     On 7/20/20 8:40 AM, Richard Henderson wrote:
>     > 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
>     <mailto: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)
>     >              l1 = gen_new_label();
>     >              l2 = gen_new_label();
>     >              l3 = gen_new_label();
>     > +            gen_update_cc_op(s);
>     >              b &= 3;
>     >              switch(b) {
>     >              case 0: /* loopnz */
>     >
> 



  reply	other threads:[~2020-07-24 21:48 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 [this message]
2020-07-24 19:23 ` Alex Bennée

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