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Re: [Qemu-devel] Bug in PPC TCG for rlwimi ?


From: Richard Henderson
Subject: Re: [Qemu-devel] Bug in PPC TCG for rlwimi ?
Date: Tue, 13 May 2014 14:40:30 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

On 05/13/2014 02:32 PM, Tom Musta wrote:
> Here is the -d op output.  What does the "mov_i32 tmp0,r4" op mean
> when r4 is an i64?

It's supposed to be the truncate.

I believe I know what's going on.  I've introduced this bug yesterday, of
course.  Thomas Huth bisected a problem with an s390 host, and I strongly
suspect that it's the same bug.  (I haven't been able to reserve an s390 build
system today to verify.)

Try the tree prior to af3cbfbe8018ccc16fb3a0048e928f66f0d05e87 and see
if things work.

Ho hum.  Patch coming soon.


r~



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