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Re: [PATCH v2] Correct CRIS TCG register lifetime management

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2] Correct CRIS TCG register lifetime management
Date: Thu, 18 Feb 2021 21:26:16 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0

On 2/18/21 9:10 PM, Stefan Sandström wrote:
>> On 18 Feb 2021, at 20:59, Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
>> Hi Stefan,
>>> On 2/18/21 7:43 PM, Stefan Sandström wrote:
>>> From: Stefan Sandstrom <stefans@axis.com>
>>> Add and fix deallocation of temporary TCG registers in CRIS code
>>> generation.
>> What did you run to figure this out?
> Hi Philippe,
> We were looking at the code in search for an issue that showed up when 
> switching to a new version of GCC. 
> It looked like QEMU executed the CRIS code wrong, so we took a look at the 
> code. The problem turned out to be outside QEMU. These potential issues were 
> spotted in the process.

Good to know. Do you mind sharing your GCC tests, so we can have more
CRIS testing?



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