Test results for amd64, h2atom, crypto_aead/hs1sivlov2

[Page version: 20260919 18:54:16]

Measurements for amd64, h2atom, crypto_aead Test results for amd64, h2atom, crypto_aead Test results for crypto_aead/hs1sivlov2

Computer: h2atom
Microarchitecture: amd64; Bonnell (106ca)
Architecture: amd64
CPU ID: GenuineIntel-000106ca-bfe9fbff
SUPERCOP version: 20260330
Operation: crypto_aead
Primitive: hs1sivlov2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
34414	16671 0 0	50075 1240 1704	`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
35235	10480 0 0	42819 1240 1704	`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
35302	11803 0 0	41844 1256 1608	`T:dolbeau/amd64-sse`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
36323	12768 0 0	44244 1256 1608	`T:dolbeau/amd64-sse`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
36361	13440 0 0	46108 1256 1608	`T:dolbeau/amd64-sse`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
37054	10840 0 0	42218 1232 1704	`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
37416	11554 0 0	40982 1248 1608	`T:dolbeau/amd64-sse`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
64313	6079 0 0	37772 1256 1608	`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
65114	6623 0 0	39508 1256 1608	`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
70344	6869 0 0	39540 1256 1608	`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
82881	4096 0 0	33870 1248 1608	`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
85622	7777 0 0	41426 1256 1704	`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
86548	6249 0 0	38825 1256 1704	`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
89212	4865 0 0	35196 1256 1608	`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330
148276	6185 0 0	37793 1248 1704	`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall`	20260519	20260330

Test failure

error 111
crypto_aead_decrypt returns nonzero

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

Implementation	Compiler
`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Test failure

error 139
timeout: the monitored command dumped core
Segmentation fault

Number of similar (implementation,compiler) pairs: 9, namely:

Implementation	Compiler
`T:faster`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:faster`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:faster`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:faster`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:faster`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:faster`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:faster`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:faster`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:faster`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Test failure

error 111
crypto_aead_decrypt allows trivial forgeries

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

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Compiler output

encrypt.c: encrypt.c:90:2: error: "This code requires AVX2 to work"
encrypt.c:    90 | #error "This code requires AVX2 to work"
encrypt.c:       |  ^
encrypt.c: In file included from encrypt.c:194:
encrypt.c: ./c128.h:62:11: warning: unused variable 't_6' [-Wunused-variable]
encrypt.c:    62 |   __m128i t_6;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:63:11: warning: unused variable 't_7' [-Wunused-variable]
encrypt.c:    63 |   __m128i t_7;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c:       |           ^~~~
encrypt.c: ./c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: encrypt.c:493:12: warning: variable 'atot' set but not used [-Wunused-but-set-variable]
encrypt.c:   493 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |            ^
encrypt.c: encrypt.c:493:18: warning: variable 'mtot' set but not used [-Wunused-but-set-variable]
encrypt.c:   493 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |                  ^
encrypt.c: 6 warnings and 1 error generated.

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

Implementation	Compiler
`T:dolbeau/amd64-avx2`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx2`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`

Compiler output

encrypt.c: encrypt.c:85: warning: "_bswap64" redefined
encrypt.c:    85 | #define _bswap64(a) __builtin_bswap64(a)
encrypt.c:       |
encrypt.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/13/include/x86gprintrin.h:33,
encrypt.c:                  from /usr/lib/gcc/x86_64-linux-gnu/13/include/immintrin.h:27,
encrypt.c:                  from encrypt.c:54:
encrypt.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/ia32intrin.h:273: note: this is the location of the previous definition
encrypt.c:   273 | #define _bswap64(a)             __bswapq(a)
encrypt.c:       |
encrypt.c: encrypt.c:86: warning: "_bswap" redefined
encrypt.c:    86 | #define _bswap(a) __builtin_bswap(a)
encrypt.c:       |
encrypt.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/ia32intrin.h:307: note: this is the location of the previous definition
encrypt.c:   307 | #define _bswap(a)               __bswapd(a)
encrypt.c:       |
encrypt.c: encrypt.c:90:2: error: #error "This code requires AVX2 to work"
encrypt.c:    90 | #error "This code requires AVX2 to work"
encrypt.c:       |  ^~~~~
encrypt.c: In file included from encrypt.c:194:
encrypt.c: c128.h: In function 'chacha_noxor128':
encrypt.c: c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c: ...

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:dolbeau/amd64-avx2`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx2`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Compiler output

encrypt.c: encrypt.c:90:2: error: "This code requires AVX512F to work"
encrypt.c:    90 | #error "This code requires AVX512F to work"
encrypt.c:       |  ^
encrypt.c: In file included from encrypt.c:194:
encrypt.c: ./c128.h:62:11: warning: unused variable 't_6' [-Wunused-variable]
encrypt.c:    62 |   __m128i t_6;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:63:11: warning: unused variable 't_7' [-Wunused-variable]
encrypt.c:    63 |   __m128i t_7;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c:       |           ^~~~
encrypt.c: ./c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: encrypt.c:317:20: error: conflicting types for '_mm512_reduce_add_epi64'
encrypt.c:   317 | unsigned long long _mm512_reduce_add_epi64 (__m512i a) {
encrypt.c:       |                    ^
encrypt.c: /usr/lib/llvm-18/lib/clang/18/include/avx512fintrin.h:9335:51: note: previous definition is here
encrypt.c:  9335 | static __inline__ long long __DEFAULT_FN_ATTRS512 _mm512_reduce_add_epi64(__m512i __W) {
encrypt.c:       |                                                   ^
encrypt.c: encrypt.c:330:21: error: invalid input size for constraint 'Yz'
encrypt.c:   330 |         : [a] "Yz" (a)
encrypt.c:       |                     ^
encrypt.c: ...

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

Implementation	Compiler
`T:dolbeau/amd64-avx512`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx512`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx512`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx512`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-avx512`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`

Compiler output

encrypt.c: encrypt.c:85: warning: "_bswap64" redefined
encrypt.c:    85 | #define _bswap64(a) __builtin_bswap64(a)
encrypt.c:       |
encrypt.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/13/include/x86gprintrin.h:33,
encrypt.c:                  from /usr/lib/gcc/x86_64-linux-gnu/13/include/immintrin.h:27,
encrypt.c:                  from encrypt.c:54:
encrypt.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/ia32intrin.h:273: note: this is the location of the previous definition
encrypt.c:   273 | #define _bswap64(a)             __bswapq(a)
encrypt.c:       |
encrypt.c: encrypt.c:86: warning: "_bswap" redefined
encrypt.c:    86 | #define _bswap(a) __builtin_bswap(a)
encrypt.c:       |
encrypt.c: /usr/lib/gcc/x86_64-linux-gnu/13/include/ia32intrin.h:307: note: this is the location of the previous definition
encrypt.c:   307 | #define _bswap(a)               __bswapd(a)
encrypt.c:       |
encrypt.c: encrypt.c:90:2: error: #error "This code requires AVX512F to work"
encrypt.c:    90 | #error "This code requires AVX512F to work"
encrypt.c:       |  ^~~~~
encrypt.c: In file included from encrypt.c:194:
encrypt.c: c128.h: In function 'chacha_noxor128':
encrypt.c: c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c: ...

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:dolbeau/amd64-avx512`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx512`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx512`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-avx512`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Compiler output

encrypt.c: In file included from encrypt.c:190:
encrypt.c: ./c128.h:62:11: warning: unused variable 't_6' [-Wunused-variable]
encrypt.c:    62 |   __m128i t_6;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:63:11: warning: unused variable 't_7' [-Wunused-variable]
encrypt.c:    63 |   __m128i t_7;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c:       |           ^~~~
encrypt.c: ./c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: encrypt.c:502:12: warning: variable 'atot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |            ^
encrypt.c: encrypt.c:502:18: warning: variable 'mtot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |                  ^
encrypt.c: 6 warnings generated.

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:dolbeau/amd64-sse`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-sse`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-sse`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:dolbeau/amd64-sse`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`

Compiler output

encrypt.c: In file included from encrypt.c:190:
encrypt.c: ./c128.h:62:11: warning: unused variable 't_6' [-Wunused-variable]
encrypt.c:    62 |   __m128i t_6;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:63:11: warning: unused variable 't_7' [-Wunused-variable]
encrypt.c:    63 |   __m128i t_7;
encrypt.c:       |           ^~~
encrypt.c: ./c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c:       |           ^~~~
encrypt.c: ./c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: encrypt.c:502:12: warning: variable 'atot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |            ^
encrypt.c: encrypt.c:502:18: warning: variable 'mtot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |                  ^
encrypt.c: In file included from encrypt.c:190:
encrypt.c: ./c128.h:99:7: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'chacha_noxor128' that is compiled without support for 'ssse3'
encrypt.c:    99 |       VEC4_QUARTERROUND( 0, 4, 8,12);
encrypt.c:       |       ^
encrypt.c: ./c128.h:17:36: note: expanded from macro 'VEC4_QUARTERROUND'
encrypt.c:    17 | #define VEC4_QUARTERROUND(a,b,c,d) VEC4_QUARTERROUND_SHUFFLE(a,b,c,d)
encrypt.c: ...

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

Implementation	Compiler
`T:dolbeau/amd64-sse`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`

Compiler output

encrypt.c: In file included from encrypt.c:190:
encrypt.c: c128.h: In function 'chacha_noxor128':
encrypt.c: c128.h:71:11: warning: unused variable 't_15' [-Wunused-variable]
encrypt.c:    71 |   __m128i t_15;
encrypt.c:       |           ^~~~
encrypt.c: c128.h:70:11: warning: unused variable 't_14' [-Wunused-variable]
encrypt.c:    70 |   __m128i t_14;
encrypt.c:       |           ^~~~
encrypt.c: c128.h:63:11: warning: unused variable 't_7' [-Wunused-variable]
encrypt.c:    63 |   __m128i t_7;
encrypt.c:       |           ^~~
encrypt.c: c128.h:62:11: warning: unused variable 't_6' [-Wunused-variable]
encrypt.c:    62 |   __m128i t_6;
encrypt.c:       |           ^~~
encrypt.c: encrypt.c: In function 'hs1_data':
encrypt.c: encrypt.c:502:18: warning: variable 'mtot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |                  ^~~~
encrypt.c: encrypt.c:502:12: warning: variable 'atot' set but not used [-Wunused-but-set-variable]
encrypt.c:   502 |   unsigned atot, mtot, arnd64, mrnd64;
encrypt.c:       |            ^~~~

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:dolbeau/amd64-sse`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Compiler output

encrypt.c: encrypt.c:326:14: warning: unused variable 'k' [-Wunused-variable]
encrypt.c:   326 |     unsigned k = (HS1_SIV_HASH_RNDS > 4 ? 1 : 2);
encrypt.c:       |              ^
encrypt.c: 1 warning generated.

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

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

Compiler output

encrypt.c: encrypt.c: In function 'hs1_hash':
encrypt.c: encrypt.c:326:14: warning: unused variable 'k' [-Wunused-variable]
encrypt.c:   326 |     unsigned k = (HS1_SIV_HASH_RNDS > 4 ? 1 : 2);
encrypt.c:       |              ^

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Namespace violations

encrypt.o chacha T
encrypt.o chacha_ivsetup T
encrypt.o chacha_keysetup T
encrypt.o hs1 T
encrypt.o hs1_hash T
encrypt.o hs1siv_chacha256 T
encrypt.o hs1siv_decrypt T
encrypt.o hs1siv_encrypt T
encrypt.o hs1siv_subkeygen T
encrypt.o prf_hash2 T

Number of similar (implementation,compiler) pairs: 8, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1))`
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`