Re: LTO crashes with fortran code in SPEC CPU 2006

[Andrew Pinski <pinskia at gmail dot com>]

On Sun, Jan 15, 2017 at 4:15 PM, Andrew Pinski <pinskia@gmail.com> wrote:
> On Sun, Jan 15, 2017 at 4:09 PM, kugan
> <kugan.vivekanandarajah@linaro.org> wrote:
>>
>>
>> On 15/01/17 15:57, Andrew Pinski wrote:
>>>
>>> Just this is just an FYI until I reduce the testcases but 5 benchmarks
>>> in SPEC CPU 2006 with fortran code is causing an ICE on
>>> aarch64-linux-gnu with -Ofast -flto -mcpu=thunderx2t99
>>> -fno-aggressive-loop-optimizations -funroll-loops:
>>> lto1: internal compiler error: in ipa_get_type, at ipa-prop.h:448
>>> 0x107c58f ipa_get_type
>>>         ../../gcc/gcc/ipa-prop.h:448
>>> 0x107c58f propagate_constants_across_call
>>>         ../../gcc/gcc/ipa-cp.c:2259
>>> 0x1080f4f propagate_constants_topo
>>>         ../../gcc/gcc/ipa-cp.c:3170
>>> 0x1080f4f ipcp_propagate_stage
>>>         ../../gcc/gcc/ipa-cp.c:3267
>>> 0x1081fcb ipcp_driver
>>>         ../../gcc/gcc/ipa-cp.c:4997
>>> Please submit a full bug report,
>>> with preprocessed source if appropriate.
>>> Please include the complete backtrace with any bug report.
>>> See <http://gcc.gnu.org/bugs.html> for instructions.
>>> lto-wrapper: fatal error: gfortran returned 1 exit status
>>>
>>> I don't know when this started as I am just starting to run SPEC CPU
>>> 2006 fp side with my spec cpu 2006 config.
>>
>>
>> I am seeing this too for aatch64 with -O3 -flto. It did work few weeks back.
>> This must be a new bug.
>
> I am reducing the crash right now with 459.GemsFDTD since that one
> seems like the smallest one to reduce.


Reduced it and filed it as PR 79108.  Note the GC parameters are
needed to reproduce the bug.

Thanks,
Andrew

>
> Thanks,
> Andrew
>
>>
>> Thanks,
>> Kugan
>>
>>
>>>
>>> Thanks,
>>> Andrew
>>>
>>