[gmx-developers] compilation issues in master with gcc 4.8.2

[David van der Spoel]

On 2014-03-15 12:49, Erik Lindahl wrote:
> It might be the sizeof() call that screws things up by returning a 64-bit value, in combination with the compiler not understanding that it is a constant.
>
> Could you cry changing those sizeof() to "4" and see if that works?
>
Yes, that works!

> Cheers,
>
> Erik
>
> --
> Erik Lindahl <erik.lindahl at scilifelab.se>
> Professor of Biophysics
> Science for Life Laboratory
> Stockholm University & KTH
> Office (SciLifeLab): +46 8 524 81567
> Cell (Sweden): +46 73 4618050
> Cell (US): 1 267 307 8746
>
>
>> On Mar 15, 2014, at 12:19 PM, David van der Spoel <spoel at xray.bmc.uu.se> wrote:
>>
>>> On 2014-03-15 11:44, David van der Spoel wrote:
>>> In file included from
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/simd.h:126:0,
>>>                   from
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/tests/simd.h:79,
>>>                   from
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/tests/simd_integer.cpp:39:
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/tests/simd_integer.cpp:
>>> In member function 'virtual void
>>> gmx::test::{anonymous}::SimdIntegerTest_gmxSimdExtractI_Test::TestBody()':
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/impl_x86_sse2/impl_x86_sse2.h:123:92:
>>> error: the last argument must be an 8-bit immediate
>>>   #define gmx_simd_extract_fi(x, i)
>>> _mm_cvtsi128_si32(_mm_srli_si128((x), sizeof(int) * (i)))
>>>
>>>                       ^
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/simd.h:665:46: note: in
>>> expansion of macro 'gmx_simd_extract_fi'
>>>   #    define gmx_simd_extract_i               gmx_simd_extract_fi
>>>                                                ^
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/tests/simd_integer.cpp:154:25:
>>> note: in expansion of macro 'gmx_simd_extract_i'
>>>           extracted_int = gmx_simd_extract_i(simd, 1);
>>>                           ^
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/impl_x86_sse2/impl_x86_sse2.h:123:92:
>>> error: the last argument must be an 8-bit immediate
>>>   #define gmx_simd_extract_fi(x, i)
>>> _mm_cvtsi128_si32(_mm_srli_si128((x), sizeof(int) * (i)))
>>>
>>>                       ^
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/simd.h:665:46: note: in
>>> expansion of macro 'gmx_simd_extract_fi'
>>>   #    define gmx_simd_extract_i               gmx_simd_extract_fi
>>>                                                ^
>>> /home/spoel/GG/master/gromacs/src/gromacs/simd/tests/simd_integer.cpp:159:25:
>>> note: in expansion of macro 'gmx_simd_extract_i'
>>>           extracted_int = gmx_simd_extract_i(simd, 3);
>>>
>>> Any clues?
>> To follow up: it compiles fine with SSE4.1 but not with SSE2.
>>
>>
>> --
>> David van der Spoel, Ph.D., Professor of Biology
>> Dept. of Cell & Molec. Biol., Uppsala University.
>> Box 596, 75124 Uppsala, Sweden. Phone:    +46184714205.
>> spoel at xray.bmc.uu.se    http://folding.bmc.uu.se
>> --
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-- 
David van der Spoel, Ph.D., Professor of Biology
Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:	+46184714205.
spoel at xray.bmc.uu.se    http://folding.bmc.uu.se