Can't Compile Blaze Tests with AVX

Hi Klaus,
When trying to build Blaze tests with AVX support (e.g. Sandybridge) but not AVX2, I get the following compiler error:
g++ -DBLAZE_USE_XSIMD -march=sandybridge -isystem /home/nils/SpECTRE/blaze/blazetest -isystem /home/nils/SpECTRE/blaze   -c -o Char.o Char.cpp
In file included from /home/nils/SpECTRE/blaze/blaze/math/simd/Functions.h:85,
                 from /home/nils/SpECTRE/blaze/blaze/math/SIMD.h:45,
                 from /home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:89,
                 from Char.cpp:42:
/home/nils/SpECTRE/blaze/blaze/math/simd/Setall.h: In instantiation of ‘blaze::If_t<IsSigned_v<T>, blaze::SIMDint8, blaze::SIMDuint8> blaze::setall_epi8(T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T
, T, T, T) [with T = char; blaze::If_t<IsSigned_v<T>, blaze::SIMDint8, blaze::SIMDuint8> = blaze::SIMDint8]’:
/home/nils/SpECTRE/blaze/blaze/math/simd/Setall.h:157:22:   required from ‘blaze::EnableIf_t<(IsIntegral_v<T> && HasSize_v<T, 1>), typename blaze::If<IsSigned_v<T> >::Type<blaze::SIMDint8, blaze::SIMDuint8> > blaze::setall(T, Ts ...) [wit
h T = char; Ts = {}; blaze::EnableIf_t<(IsIntegral_v<T> && HasSize_v<T, 1>), typename blaze::If<IsSigned_v<T> >::Type<blaze::SIMDint8, blaze::SIMDuint8> > = blaze::SIMDint8; typename blaze::If<IsSigned_v<T> >::Type<blaze::SIMDint8, blaze:
:SIMDuint8> = blaze::SIMDint8]’
/home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:673:27:   required from ‘void blazetest::mathtest::simd::OperationTest<T>::testSetall() [with T = char]’
/home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:411:4:   required from ‘blazetest::mathtest::simd::OperationTest<T>::OperationTest() [with T = char]’
/home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:3876:4:   required from ‘void blazetest::mathtest::simd::runTest() [with T = char]’
Char.cpp:58:7:   required from here
/home/nils/SpECTRE/blaze/blaze/math/simd/Setall.h:103:10: error: no matching function for call to ‘blaze::SIMDint8::SIMDint8(__m256i)’
  103 |   return If_t<IsSigned_v<T>, SIMDint8, SIMDuint8>(
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  104 |       _mm256_set_epi8(v31, v30, v29, v28, v27, v26, v25, v24, v23, v22, v21,
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  105 |                       v20, v19, v18, v17, v16, v15, v14, v13, v12, v11, v10, v9,
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  106 |                       v8, v7, v6, v5, v4, v3, v2, v1, v0));
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/nils/SpECTRE/blaze/blaze/math/SIMD.h:43,
                 from /home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:89,
                 from Char.cpp:42:
/home/nils/SpECTRE/blaze/blaze/math/simd/BasicTypes.h:115:24: note: candidate: ‘template<class T> blaze::SIMDint8::SIMDint8(const blaze::SIMDi8<T>&)’
  115 |    BLAZE_ALWAYS_INLINE SIMDint8( const SIMDi8<T>& v ) noexcept : value( (*v).value ) {}
      |                        ^~~~~~~~
/home/nils/SpECTRE/blaze/blaze/math/simd/BasicTypes.h:115:24: note:   template argument deduction/substitution failed:
In file included from /home/nils/SpECTRE/blaze/blaze/math/simd/Functions.h:85,
                 from /home/nils/SpECTRE/blaze/blaze/math/SIMD.h:45,
                 from /home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:89,
                 from Char.cpp:42:
/home/nils/SpECTRE/blaze/blaze/math/simd/Setall.h:103:10: note:   mismatched types ‘const blaze::SIMDi8<T>’ and ‘__m256i’
  103 |   return If_t<IsSigned_v<T>, SIMDint8, SIMDuint8>(
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  104 |       _mm256_set_epi8(v31, v30, v29, v28, v27, v26, v25, v24, v23, v22, v21,
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  105 |                       v20, v19, v18, v17, v16, v15, v14, v13, v12, v11, v10, v9,
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  106 |                       v8, v7, v6, v5, v4, v3, v2, v1, v0));
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/nils/SpECTRE/blaze/blaze/math/SIMD.h:43,
                 from /home/nils/SpECTRE/blaze/blazetest/blazetest/mathtest/simd/OperationTest.h:89,
                 from Char.cpp:42:
/home/nils/SpECTRE/blaze/blaze/math/simd/BasicTypes.h:112:24: note: candidate: ‘blaze::SIMDint8::SIMDint8(blaze::SIMDint8::IntrinsicType)’
  112 |    BLAZE_ALWAYS_INLINE SIMDint8( IntrinsicType v ) noexcept : value( v ) {}
      |                        ^~~~~~~~
/home/nils/SpECTRE/blaze/blaze/math/simd/BasicTypes.h:112:48: note:   no known conversion for argument 1 from ‘__m256i’ to ‘blaze::SIMDint8::IntrinsicType’
  112 |    BLAZE_ALWAYS_INLINE SIMDint8( IntrinsicType v ) noexcept : value( v ) {}
Switching SIMDint8 to mm256i in AVX mode breaks some other pieces of code, like abs. I’m not sure what you think the right path forward is. To reproduce you should be able to just set -march=sandybridge in blaze/blazetest/ConfigeFile.
‌
Best,
‌
Nils
Comments (3)
