[llvm-dev] [PowerPC] Recent branch too far breakage

[Richard Pennington via llvm-dev]

Hi Hal,

It is fixed. Thanks!

-Rich

On 10/02/2016 11:20 PM, Hal Finkel wrote:
> Hi Rich,
>
> r283086 should fix this.
>
> Thanks again,
> Hal
>
> ----- Original Message -----
>> From: "Richard Pennington" <rich at pennware.com>
>> To: "Hal Finkel" <hfinkel at anl.gov>
>> Cc: llvm-dev at lists.llvm.org
>> Sent: Wednesday, September 7, 2016 8:00:12 AM
>> Subject: Re: [llvm-dev] [PowerPC] Recent branch too far breakage
>>
>> On 09/07/2016 07:40 AM, Hal Finkel wrote:
>>> ----- Original Message -----
>>>> From: "Hal Finkel via llvm-dev" <llvm-dev at lists.llvm.org>
>>>> To: "Richard Pennington" <rich at pennware.com>
>>>> Cc: llvm-dev at lists.llvm.org
>>>> Sent: Wednesday, September 7, 2016 7:37:50 AM
>>>> Subject: Re: [llvm-dev] [PowerPC] Recent branch too far breakage
>>>>
>>>> Hi Rich,
>>>>
>>>> It is hard to tell, but there was a bug fix made to the branch
>>>> relaxation code; perhaps the fix was not bug free -- Could this
>>>> have
>>>> been caused by r280626?
>>> Is this a release or a debug build?
>>>
>>>    -Hal
>> Hi Hal,
>>
>> This occurred between r279916 and r280704, so it could have been
>> r280626. I'll try to revert it in my code and see if the problem goes
>> away.
>> It is a release build.
>>
>> -Rich
>>>>    -Hal
>>>>
>>>> ----- Original Message -----
>>>>> From: "Richard Pennington via llvm-dev" <llvm-dev at lists.llvm.org>
>>>>> To: llvm-dev at lists.llvm.org
>>>>> Sent: Wednesday, September 7, 2016 7:29:25 AM
>>>>> Subject: [llvm-dev] [PowerPC] Recent branch too far breakage
>>>>>
>>>>> I'm using a recent revision of TOT (280704) to build clang/LLVM
>>>>> for
>>>>> PowerPC64 little endian. I'm getting an assembler error when
>>>>> building
>>>>> PPCInstPrinter.cpp:
>>>>>
>>>>> The error is:
>>>>>
>>>>> /tmp/PPCInstPrinter-84c835.s: Assembler messages:
>>>>> /tmp/PPCInstPrinter-84c835.s:7671: Error: operand out of range
>>>>> (0x0000000000008004 is not between 0xffffffffffff8000 and
>>>>> 0x0000000000007ffc)
>>>>>
>>>>> The offending line is the bne branch in this snippet:
>>>>>
>>>>> .LBB24_787:
>>>>>            ld 3, 16(29)
>>>>>            ld 4, 24(29)
>>>>>            sub      4, 4, 3
>>>>>            rldicl 4, 4, 60, 4
>>>>>            cmplwi 0, 4, 3
>>>>>            bne      0, .LBB24_2630
>>>>>
>>>>> Could this be because of a recent change in the PowerPC code
>>>>> generator
>>>>> or just because PPCInstPrinter.cpp changed a bit and exposed a
>>>>> pre-existing bug?
>>>>>
>>>>>
>>>>> -Rich
>>>>>
>>>>> _______________________________________________
>>>>> LLVM Developers mailing list
>>>>> llvm-dev at lists.llvm.org
>>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>>
>>>> _______________________________________________
>>>> LLVM Developers mailing list
>>>> llvm-dev at lists.llvm.org
>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>
>>