Implementation notes: amd64, hertz, crypto_stream/simon128256ctr

Computer: hertz
Microarchitecture: amd64; Zen 4 (a60f12)
Architecture: amd64
CPU ID: AuthenticAMD-00a60f12-178bfbff
SUPERCOP version: 20240716
Operation: crypto_stream
Primitive: simon128256ctr

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
3592	106097 0 0	125822 828 1032	`T:avx2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
3621	106073 0 0	125686 828 1032	`T:avx2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
5310	102655 0 0	122366 828 1032	`T:sse4`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
5483	102655 0 0	122254 828 1032	`T:sse4`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
6128	103517 0 0	117008 820 1032	`T:avx2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
6329	139461 0 0	155685 804 1096	`T:sse4`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
6372	131346 0 0	145517 804 1032	`T:avx2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
7244	130983 0 0	143464 780 1000	`T:avx2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
9805	138129 0 0	152269 804 1032	`T:sse4`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
9874	100026 0 0	113536 820 1032	`T:sse4`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716
11488	141479 0 0	153928 780 1000	`T:sse4`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240716	20240716

Compiler output

stream.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/13/include/immintrin.h:51,
stream.c:                  from Intrinsics_AVX2_128block.h:5,
stream.c:                  from Simon128256AVX2.h:17,
stream.c:                  from stream.c:20:
stream.c: In function '_mm256_unpackhi_epi64',
stream.c:     inlined from 'Encrypt' at stream.c:163:22:
stream.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/avx2intrin.h:880:19: warning: 'X[1]' may be used uninitialized [-Wmaybe-uninitialized]
stream.c:   880 |   return (__m256i)__builtin_ia32_punpckhqdq256 ((__v4di)__A, (__v4di)__B);
stream.c:       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stream.c: stream.c: In function 'Encrypt':
stream.c: stream.c:108:8: note: 'X[1]' was declared here
stream.c:   108 |   u256 X[8],Y[8];
stream.c:       |        ^
stream.c: In function '_mm256_unpackhi_epi64',
stream.c:     inlined from 'Encrypt' at stream.c:164:22:
stream.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/avx2intrin.h:880:19: warning: 'X[2]' may be used uninitialized [-Wmaybe-uninitialized]
stream.c:   880 |   return (__m256i)__builtin_ia32_punpckhqdq256 ((__v4di)__A, (__v4di)__B);
stream.c:       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stream.c: stream.c: In function 'Encrypt':
stream.c: stream.c:108:8: note: 'X[2]' was declared here
stream.c:   108 |   u256 X[8],Y[8];
stream.c:       |        ^
stream.c: In function '_mm256_unpackhi_epi64',
stream.c:     inlined from 'Encrypt' at stream.c:165:22:
stream.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/avx2intrin.h:880:19: warning: 'X[3]' may be used uninitialized [-Wmaybe-uninitialized]
stream.c: ...

Number of similar (implementation,compiler) pairs: 1, namely:

Implementation	Compiler
`T:avx2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`

Compiler output

stream.c: stream.c:325:58: warning: argument 'T' of type '__m128i[8]' with mismatched bound [-Warray-parameter]
stream.c:   325 | inline __attribute__((always_inline)) int Transpose(u128 T[8])
stream.c:       |                                                          ^
stream.c: stream.c:29:58: note: previously declared as '__m128i[]' here
stream.c:    29 | inline __attribute__((always_inline)) int Transpose(u128 M[]);
stream.c:       |                                                          ^
stream.c: 1 warning generated.

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`T:sse4`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:sse4`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:sse4`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`

Compiler output

stream.c: stream.c:325:58: warning: argument 1 of type '__m128i[8]' with mismatched bound [-Warray-parameter=]
stream.c:   325 | inline __attribute__((always_inline)) int Transpose(u128 T[8])
stream.c: stream.c:29:58: note: previously declared as '__m128i[]'
stream.c:    29 | inline __attribute__((always_inline)) int Transpose(u128 M[]);

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`T:sse4`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`
`T:sse4`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`
`T:sse4`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`

Namespace violations

stream.o Encrypt T
stream.o Encrypt_Xor T
stream.o ExpandKeyBS T
stream.o ExpandKeyNBS T

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:avx2`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:avx2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:avx2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:avx2`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`
`T:avx2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`

Namespace violations

stream.o ExpandKeyBS T
stream.o ExpandKeyNBS T

Number of similar (implementation,compiler) pairs: 6, namely:

Implementation	Compiler
`T:sse4`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:sse4`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:sse4`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:sse4`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`
`T:sse4`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`
`T:sse4`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0)`