Implementation notes: amd64, rumba7, crypto_sign/luov863256

Computer: rumba7
Microarchitecture: amd64; Zen (800f11)
Architecture: amd64
CPU ID: AuthenticAMD-00800f11-178bfbff
SUPERCOP version: 20240716
Operation: crypto_sign
Primitive: luov863256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
1236809732888 32768 064136 33612 1792T:avx2gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1240899063683 0 094928 884 1760T:avx2clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1242788748842 0 078592 868 1792T:avx2clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1242807761589 0 092096 884 1760T:avx2clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1245527653460 0 081384 884 1728T:avx2clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1250009020088 32768 050144 33612 1792T:avx2gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1255154919530 32768 048952 33612 1792T:avx2gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
1275750115209 32768 043592 33604 1760T:avx2gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
16869408553436 0 052751 884 1760T:portableclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
17082418555253 0 052991 884 1728T:portableclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
17127065552449 0 051223 884 1760T:portableclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
17136021556937 0 053847 836 1792T:portablegcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
17719652547293 0 046063 868 1792T:portableclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
18049613549476 0 047063 884 1728T:portableclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
18127084552157 0 049791 836 1792T:portablegcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
19503504550226 0 047471 836 1792T:portablegcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
20029970548006 0 045215 828 1760T:portablegcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
112407483412771 36 0172967 836 1792T:refgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
116952771416631 36 0175383 836 1792T:refgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
116967454416157 36 0175175 884 1728T:refclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
117097445411258 36 0173335 884 1760T:refclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
117721707414236 36 0175119 884 1760T:refclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
118245675411621 36 0171359 836 1792T:refgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
118426257410320 36 0170319 884 1728T:refclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
120953620408185 36 0169519 868 1792T:refclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716
129927968409346 36 0169215 828 1760T:refgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071720240716

Compiler output


LUOV.c: LUOV.c:1156:10: warning: unused function 'read_uint64_t' [-Wunused-function]
LUOV.c: uint64_t read_uint64_t(const unsigned char *data){
LUOV.c:          ^
LUOV.c: 1 warning generated.
keccakrng.c: keccakrng.c:71:24: warning: unused function 'rotl' [-Wunused-function]
keccakrng.c: static inline uint64_t rotl(const uint64_t x, int k) {
keccakrng.c:                        ^
keccakrng.c: 1 warning generated.

Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:avx2clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)

Compiler output


LUOV.c: LUOV.c:38:19: error: '__builtin_ia32_permdi256' needs target feature avx2
LUOV.c:                         __m256i rrrr = _mm256_permute4x64_epi64(_mm256_loadu_si256((__m256i *)&Q1[col++]),0);
LUOV.c:                                        ^
LUOV.c: /usr/lib/llvm-14/lib/clang/14.0.0/include/avx2intrin.h:818:13: note: expanded from macro '_mm256_permute4x64_epi64'
LUOV.c:   ((__m256i)__builtin_ia32_permdi256((__v4di)(__m256i)(V), (int)(M)))
LUOV.c:             ^
LUOV.c: LUOV.c:38:44: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'calculateQ2' that is compiled without support for 'avx'
LUOV.c:                         __m256i rrrr = _mm256_permute4x64_epi64(_mm256_loadu_si256((__m256i *)&Q1[col++]),0);
LUOV.c:                                                                 ^
LUOV.c: LUOV.c:38:44: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
LUOV.c: LUOV.c:43:69: error: always_inline function '_mm256_setzero_pd' requires target feature 'avx', but would be inlined into function 'calculateQ2' that is compiled without support for 'avx'
LUOV.c:                                 *((__m256i *)&TempMat[i][k*8+4]) ^=  (__m256i) _mm256_blendv_pd(_mm256_setzero_pd(),(__m256d) rrrr,(__m256d)TJ);
LUOV.c:                                                                                                 ^
LUOV.c: LUOV.c:43:69: error: AVX vector return of type '__m256d' (vector of 4 'double' values) without 'avx' enabled changes the ABI
LUOV.c: LUOV.c:43:52: error: always_inline function '_mm256_blendv_pd' requires target feature 'avx', but would be inlined into function 'calculateQ2' that is compiled without support for 'avx'
LUOV.c:                                 *((__m256i *)&TempMat[i][k*8+4]) ^=  (__m256i) _mm256_blendv_pd(_mm256_setzero_pd(),(__m256d) rrrr,(__m256d)TJ);
LUOV.c:                                                                                ^
LUOV.c: LUOV.c:43:52: error: AVX vector argument of type '__m256d' (vector of 4 'double' values) without 'avx' enabled changes the ABI
LUOV.c: LUOV.c:44:10: error: always_inline function '_mm256_slli_epi64' requires target feature 'avx2', but would be inlined into function 'calculateQ2' that is compiled without support for 'avx2'
LUOV.c:                                 TJ = _mm256_slli_epi64(TJ,4);
LUOV.c:                                      ^
LUOV.c: LUOV.c:44:10: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
LUOV.c: LUOV.c:46:66: error: always_inline function '_mm256_setzero_pd' requires target feature 'avx', but would be inlined into function 'calculateQ2' that is compiled without support for 'avx'
LUOV.c:                                 *((__m256i *)&TempMat[i][k*8]) ^= (__m256i) _mm256_blendv_pd(_mm256_setzero_pd(),(__m256d) rrrr,(__m256d)TJ);
LUOV.c:                                                                                              ^
LUOV.c: ...

Number of similar (implementation,compiler) pairs: 1, namely:
ImplementationCompiler
T:avx2clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)

Compiler output


F64Field.c: F64Field.c: In function 'f64addInPlace':
F64Field.c: F64Field.c:43:11: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
F64Field.c:    43 |         *((uint64_t *) a->coef) ^= *((uint64_t *) b->coef);
F64Field.c:       |          ~^~~~~~~~~~~~~~~~~~~~~
F64Field.c: F64Field.c:43:38: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
F64Field.c:    43 |         *((uint64_t *) a->coef) ^= *((uint64_t *) b->coef);
F64Field.c:       |                                     ~^~~~~~~~~~~~~~~~~~~~~
F80Field.c: F80Field.c: In function 'f80addInPlace':
F80Field.c: F80Field.c:55:11: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
F80Field.c:    55 |         *((uint64_t *) a->coef) ^= *((uint64_t *) b->coef);
F80Field.c:       |          ~^~~~~~~~~~~~~~~~~~~~~
F80Field.c: F80Field.c:55:38: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
F80Field.c:    55 |         *((uint64_t *) a->coef) ^= *((uint64_t *) b->coef);
F80Field.c:       |                                     ~^~~~~~~~~~~~~~~~~~~~~

Number of similar (implementation,compiler) pairs: 3, namely:
ImplementationCompiler
T:portablegcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:portablegcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:portablegcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)

Namespace violations


LUOV.o BuildAugmentedMatrixFromP1L T
LUOV.o BuildAugmentedMatrixFromQ1 T
LUOV.o EvaluateVinegarPart T
LUOV.o TransformQ1 T
LUOV.o _generateKeyPair T
LUOV.o _sign T
LUOV.o calculateQ2 T
LUOV.o computeTarget T
LUOV.o deserializeQ2 T
LUOV.o evaluatePublicMap T
LUOV.o extractMessage T
LUOV.o generateBigKeyPair T
LUOV.o generateKeyPair T
LUOV.o initializeVinegarSponge T
LUOV.o multiplyByT T
LUOV.o precompute_sign T
LUOV.o precompute_verify T
LUOV.o serializeQ2 T
LUOV.o solvePrivateUOVSystem T
LUOV.o verify T
LUOV.o verify_fast T
LinearAlgebra.o destroy_matrix T
LinearAlgebra.o getUniqueSolution T
LinearAlgebra.o newMatrix T
LinearAlgebra.o printMatrix T
LinearAlgebra.o rowEchelonAugmented T
LinearAlgebra.o rowOp T
LinearAlgebra.o scalarMul2 T
LinearAlgebra.o scaleRow T
LinearAlgebra.o swapRows T
intermediateValues.o printAugmentedMatrix T
intermediateValues.o printEvaluation T
intermediateValues.o printPrivateSolution T
intermediateValues.o printVinegarValues T
intermediateValues.o reportSolutionFound T
keccakrng.o calculateQ1 T
keccakrng.o initializeAndAbsorb T
keccakrng.o squeezeCols T
keccakrng.o squeezeVector T
keccakrng.o squeezeuint64_t T

Number of similar (implementation,compiler) pairs: 8, namely:
ImplementationCompiler
T:avx2clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:avx2gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:avx2gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:avx2gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:avx2gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)

Namespace violations


Bitcontainer.o squeezeBitcontainerArray T
F16Field.o f16EucildeanDivision T
F16Field.o f16ExtendedEuclideanAlgorithm T
F16Field.o f16antilog T
F16Field.o f16deserialize_FELT T
F16Field.o f16inverse T
F16Field.o f16log T
F16Field.o f16multiply T
F16Field.o f16polyAdd T
F16Field.o f16polyCopy T
F16Field.o f16polyMult T
F16Field.o f16polyOne T
F16Field.o f16polyZero T
F16Field.o f16printFELT T
F16Field.o f16scalarMultiply T
F16Field.o f16serialize_FELT T
F16Field.o isArrayOfZeros T
F32Field.o f32add T
F32Field.o f32addInPlace T
F32Field.o f32deserialize_FELT T
F32Field.o f32inverse T
F32Field.o f32isEqual T
F32Field.o f32multiply T
F32Field.o f32multiplyOld T
F32Field.o f32printFELT T
F32Field.o f32scalarMultiply T
F32Field.o f32serialize_FELT T
F32Field.o newF32FELT T
F48Field.o f48add T
F48Field.o f48addInPlace T
F48Field.o f48deserialize_FELT T
F48Field.o f48inverse T
F48Field.o f48isEqual T
F48Field.o f48multiply T
F48Field.o f48printFELT T
F48Field.o f48scalarMultiply T
F48Field.o f48serialize_FELT T
F48Field.o newF48FELT T
F64Field.o f64add T
F64Field.o f64addInPlace T
F64Field.o f64deserialize_FELT T
F64Field.o f64inverse T
F64Field.o f64isEqual T
F64Field.o f64multiply T
F64Field.o f64printFELT T
F64Field.o f64scalarMultiply T
F64Field.o f64serialize_FELT T
F64Field.o newF64FELT T
F80Field.o f80Scalarmultiply T
F80Field.o f80add T
F80Field.o f80addInPlace T
F80Field.o f80deserialize_FELT T
F80Field.o f80inverse T
F80Field.o f80isEqual T
F80Field.o f80multiply T
F80Field.o f80printFELT T
F80Field.o f80serialize_FELT T
F80Field.o newF80FELT T
F8Field.o f8antilog T
F8Field.o f8deserialize_FELT T
F8Field.o f8inverse T
F8Field.o f8log T
F8Field.o f8multiply T
F8Field.o f8printFELT T
F8Field.o f8serialize_FELT T
LUOV.o BuildAugmentedMatrix T
LUOV.o _addScalarProduct1 T
LUOV.o _addScalarProduct3 T
LUOV.o addScalarProduct T
LUOV.o addScalarProduct3 T
LUOV.o calculateQ2 T
LUOV.o computeTarget T
LUOV.o deserialize_PublicKey T
LUOV.o deserialize_SecretKey T
LUOV.o deserialize_signature T
LUOV.o destroy_PublicKey T
LUOV.o destroy_SecretKey T
LUOV.o destroy_signature T
LUOV.o evaluatePublicMap T
LUOV.o expandTable T
LUOV.o extractMessage T
LUOV.o generateKeyPair T
LUOV.o repeatTable T
LUOV.o serialize_PublicKey T
LUOV.o serialize_SecretKey T
LUOV.o serialize_signature T
LUOV.o signDocument T
LUOV.o solvePrivateUOVSystem T
LUOV.o verify T
LinearAlgebra.o destroy_matrix T
LinearAlgebra.o getUniqueSolution T
LinearAlgebra.o newMatrix T
LinearAlgebra.o printMatrix T
LinearAlgebra.o rowEchelonAugmented T
LinearAlgebra.o rowOp T
LinearAlgebra.o scaleRow T
LinearAlgebra.o swapRows T
LinearAlgebra.o zeroMatrix T
buffer.o deserialize_uint64_t T
buffer.o newReader T
buffer.o newWriter T
buffer.o readBit T
buffer.o serialize_uint64_t T
buffer.o transcribe T
buffer.o writeBit T
intermediateValues.o printAugmentedMatrix T
intermediateValues.o printEvaluation T
intermediateValues.o printPrivateSolution T
intermediateValues.o printVinegarValues T
intermediateValues.o reportSolutionFound T
keccakrng.o initializeAndAbsorb T
keccakrng.o squeezeVector T
keccakrng.o squeezeuint64_t T

Number of similar (implementation,compiler) pairs: 9, namely:
ImplementationCompiler
T:portableclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:portableclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:portableclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:portableclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:portableclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:portablegcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:portablegcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:portablegcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:portablegcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)

Namespace violations


Bitcontainer.o squeezeBitcontainerArray T
F16Field.o f16EucildeanDivision T
F16Field.o f16ExtendedEuclideanAlgorithm T
F16Field.o f16antilog T
F16Field.o f16deserialize_FELT T
F16Field.o f16inverse T
F16Field.o f16log T
F16Field.o f16multiply T
F16Field.o f16polyAdd T
F16Field.o f16polyCopy T
F16Field.o f16polyMult T
F16Field.o f16polyOne T
F16Field.o f16polyZero T
F16Field.o f16printFELT T
F16Field.o f16scalarMultiply T
F16Field.o f16serialize_FELT T
F16Field.o isArrayOfZeros T
F32Field.o f32add T
F32Field.o f32deserialize_FELT T
F32Field.o f32inverse T
F32Field.o f32isEqual T
F32Field.o f32multiply T
F32Field.o f32multiplyOld T
F32Field.o f32printFELT T
F32Field.o f32scalarMultiply T
F32Field.o f32serialize_FELT T
F32Field.o newF32FELT T
F48Field.o f48add T
F48Field.o f48deserialize_FELT T
F48Field.o f48inverse T
F48Field.o f48isEqual T
F48Field.o f48multiply T
F48Field.o f48printFELT T
F48Field.o f48scalarMultiply T
F48Field.o f48serialize_FELT T
F48Field.o newF48FELT T
F64Field.o f64add T
F64Field.o f64deserialize_FELT T
F64Field.o f64inverse T
F64Field.o f64isEqual T
F64Field.o f64multiply T
F64Field.o f64printFELT T
F64Field.o f64scalarMultiply T
F64Field.o f64serialize_FELT T
F64Field.o newF64FELT T
F80Field.o f80Scalarmultiply T
F80Field.o f80add T
F80Field.o f80deserialize_FELT T
F80Field.o f80inverse T
F80Field.o f80isEqual T
F80Field.o f80multiply T
F80Field.o f80printFELT T
F80Field.o f80serialize_FELT T
F80Field.o newF80FELT T
F8Field.o f8antilog T
F8Field.o f8deserialize_FELT T
F8Field.o f8inverse T
F8Field.o f8log T
F8Field.o f8multiply T
F8Field.o f8printFELT T
F8Field.o f8serialize_FELT T
LUOV.o BuildAugmentedMatrix T
LUOV.o calculateQ2 T
LUOV.o computeTarget T
LUOV.o deserialize_PublicKey T
LUOV.o deserialize_SecretKey T
LUOV.o deserialize_signature T
LUOV.o destroy_PublicKey T
LUOV.o destroy_SecretKey T
LUOV.o destroy_signature T
LUOV.o evaluatePublicMap T
LUOV.o extractMessage T
LUOV.o generateKeyPair T
LUOV.o serialize_PublicKey T
LUOV.o serialize_SecretKey T
LUOV.o serialize_signature T
LUOV.o signDocument T
LUOV.o solvePrivateUOVSystem T
LUOV.o verify T
LinearAlgebra.o destroy_matrix T
LinearAlgebra.o getUniqueSolution T
LinearAlgebra.o newMatrix T
LinearAlgebra.o printMatrix T
LinearAlgebra.o rowEchelonAugmented T
LinearAlgebra.o rowOp T
LinearAlgebra.o scaleRow T
LinearAlgebra.o swapRows T
LinearAlgebra.o zeroMatrix T
buffer.o deserialize_uint64_t T
buffer.o newReader T
buffer.o newWriter T
buffer.o readBit T
buffer.o serialize_uint64_t T
buffer.o transcribe T
buffer.o writeBit T
intermediateValues.o printAugmentedMatrix T
intermediateValues.o printEvaluation T
intermediateValues.o printPrivateSolution T
intermediateValues.o printVinegarValues T
intermediateValues.o reportSolutionFound T
keccakrng.o initializeAndAbsorb T
keccakrng.o squeezeVector T
keccakrng.o squeezeuint64_t T

Number of similar (implementation,compiler) pairs: 9, namely:
ImplementationCompiler
T:refclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)