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Re: [PATCH v2] Correct CRIS TCG register lifetime management
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From: |
Philippe Mathieu-Daudé |
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Subject: |
Re: [PATCH v2] Correct CRIS TCG register lifetime management |
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Date: |
Thu, 18 Feb 2021 21:26:16 +0100 |
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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?
Regards,
Phil.