[superh-gnu-discuss] optimization problem with 4.4-200

[Akira Kobayashi]

Hello Andrew-san,

Thank you very much for your reply.
I reconfirmed this problem after I received your reply.
The board I used was SH4 core. We reconfirmed the problem with the board.
However, as you said, the problem was not reproduced with the SH4A core 
board.
Thank you for correcting my mistake.

Best Regards,
Akira

----- Original Message ----- 
From: "Andrew Stubbs" <ams at codesourcery.com>
To: "Akira Kobayashi" <koba at lineo.co.jp>
Cc: <superh-gnu-discuss at codesourcery.com>
Sent: Monday, October 18, 2010 10:55 PM
Subject: Re: [superh-gnu-discuss] optimization problem with 4.4-200


> On 18/10/10 14:03, Akira Kobayashi wrote:
>> When compiling the attached code with optimization option (-O1, -O2,
>> -O3, -Os), the result was different from the result of no optimization
>> (-O0).
>> Will this problem be fixed in the next release?
>
> I can't reproduce this problem with either 4.4-200, or the upcoming new
> version. I have compiled your test case for Little Endian SH-4A, at all
> optimization levels, and without any other options.
>
> Are you sure there's not something else happening here?
>
> In any case, the new Lite edition compiler (to be released in a few
> weeks) will be based on GCC 4.5 - a major update, so I would be
> surprised if it suffered from exactly the same problems.
>
> Thank you for reporting the problem.
>
> Andrew Stubbs
> CodeSourcery