Implementation notes: amd64, titan0, crypto_kem/oddmanhattan256

Computer: titan0
Microarchitecture: amd64; Haswell+AES (306c3)
Architecture: amd64
CPU ID: GenuineIntel-000306c3-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_kem
Primitive: oddmanhattan256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
500353962	4810 0 52	226677 1180 1888	`T:opt`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
500671892	5862 0 52	230699 1188 1792	`T:opt`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
502510180	7526 0 52	232659 1188 1792	`T:opt`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
505419773	7639 0 52	231195 1188 1792	`T:opt`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
507834633	5227 0 52	226339 1188 1792	`T:opt`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
1521362747	6695 0 52	226544 1188 1792	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
1651946114	4331 0 52	221816 1188 1792	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
1774673864	4014 0 52	222218 1180 1888	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
1802337885	6598 0 52	228072 1188 1792	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625
1812930974	5046 0 52	226240 1188 1792	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240629	20240625

Compiler output

kem.c: kem.c:30:15: warning: passing 'char[32]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   randombytes(seed,crypto_kem_BYTES);
kem.c:               ^~~~
kem.c: .../supercop-data/titan0/amd64/include/randombytes.h:8:40: note: passing argument to parameter here
kem.c: extern void randombytes(unsigned char *,unsigned long long);
kem.c:                                        ^
kem.c: kem.c:35:25: warning: passing 'char[32]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:                         ^~~~
kem.c: ./rng.h:40:34: note: passing argument to parameter 'seed' here
kem.c:                   unsigned char *seed,
kem.c:                                  ^
kem.c: kem.c:131:30: warning: passing 'char[8]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:                              ^~~~~~~~~~~
kem.c: ./rng.h:41:34: note: passing argument to parameter 'diversifier' here
kem.c:                   unsigned char *diversifier,
kem.c:                                  ^
kem.c: kem.c:305:21: warning: unused variable 'b0' [-Wunused-variable]
kem.c:       unsigned char b0=1;
kem.c:                     ^
kem.c: 4 warnings generated.
rng.c: rng.c:122:9: warning: variable 'ciphertext_len' set but not used [-Wunused-but-set-variable]
rng.c:     int ciphertext_len;
rng.c:         ^
rng.c: 1 warning generated.

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

Implementation	Compiler
`T:opt`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

kem.c: kem.c: In function 'crypto_kem_oddmanhattan256_opt_timingleaks_keypair':
kem.c: kem.c:30:15: warning: pointer targets in passing argument 1 of 'randombytes' differ in signedness [-Wpointer-sign]
kem.c:    30 |   randombytes(seed,crypto_kem_BYTES);
kem.c:       |               ^~~~
kem.c:       |               |
kem.c:       |               char *
kem.c: In file included from kem.c:5:
kem.c: .../supercop-data/titan0/amd64/include/randombytes.h:8:25: note: expected 'unsigned char *' but argument is of type 'char *'
kem.c:     8 | extern void randombytes(unsigned char *,unsigned long long);
kem.c:       |                         ^~~~~~~~~~~~~~~
kem.c: kem.c:35:25: warning: pointer targets in passing argument 2 of 'seedexpander_init' differ in signedness [-Wpointer-sign]
kem.c:    35 |   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:       |                         ^~~~
kem.c:       |                         |
kem.c:       |                         char *
kem.c: In file included from kem.c:3:
kem.c: rng.h:40:34: note: expected 'unsigned char *' but argument is of type 'char *'
kem.c:    40 |                   unsigned char *seed,
kem.c:       |                   ~~~~~~~~~~~~~~~^~~~
kem.c: kem.c: In function 'om_kem_enc':
kem.c: kem.c:131:30: warning: pointer targets in passing argument 3 of 'seedexpander_init' differ in signedness [-Wpointer-sign]
kem.c:   131 |   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:       |                              ^~~~~~~~~~~
kem.c:       |                              |
kem.c:       |                              char *
kem.c: ...

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

Implementation	Compiler
`T:opt`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Compiler output

kem.c: kem.c:30:15: warning: passing 'char[32]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   randombytes(seed,crypto_kem_BYTES);
kem.c:               ^~~~
kem.c: .../supercop-data/titan0/amd64/include/randombytes.h:8:40: note: passing argument to parameter here
kem.c: extern void randombytes(unsigned char *,unsigned long long);
kem.c:                                        ^
kem.c: kem.c:35:25: warning: passing 'char[32]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:                         ^~~~
kem.c: ./rng.h:40:34: note: passing argument to parameter 'seed' here
kem.c:                   unsigned char *seed,
kem.c:                                  ^
kem.c: kem.c:125:30: warning: passing 'char[8]' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
kem.c:   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:                              ^~~~~~~~~~~
kem.c: ./rng.h:41:34: note: passing argument to parameter 'diversifier' here
kem.c:                   unsigned char *diversifier,
kem.c:                                  ^
kem.c: kem.c:235:21: warning: unused variable 'b0' [-Wunused-variable]
kem.c:       unsigned char b0=1;
kem.c:                     ^
kem.c: 4 warnings generated.
rng.c: rng.c:122:9: warning: variable 'ciphertext_len' set but not used [-Wunused-but-set-variable]
rng.c:     int ciphertext_len;
rng.c:         ^
rng.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_14.0.0)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

kem.c: kem.c: In function 'crypto_kem_oddmanhattan256_ref_timingleaks_keypair':
kem.c: kem.c:30:15: warning: pointer targets in passing argument 1 of 'randombytes' differ in signedness [-Wpointer-sign]
kem.c:    30 |   randombytes(seed,crypto_kem_BYTES);
kem.c:       |               ^~~~
kem.c:       |               |
kem.c:       |               char *
kem.c: In file included from kem.c:5:
kem.c: .../supercop-data/titan0/amd64/include/randombytes.h:8:25: note: expected 'unsigned char *' but argument is of type 'char *'
kem.c:     8 | extern void randombytes(unsigned char *,unsigned long long);
kem.c:       |                         ^~~~~~~~~~~~~~~
kem.c: kem.c:35:25: warning: pointer targets in passing argument 2 of 'seedexpander_init' differ in signedness [-Wpointer-sign]
kem.c:    35 |   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:       |                         ^~~~
kem.c:       |                         |
kem.c:       |                         char *
kem.c: In file included from kem.c:3:
kem.c: rng.h:40:34: note: expected 'unsigned char *' but argument is of type 'char *'
kem.c:    40 |                   unsigned char *seed,
kem.c:       |                   ~~~~~~~~~~~~~~~^~~~
kem.c: kem.c: In function 'om_kem_enc':
kem.c: kem.c:125:30: warning: pointer targets in passing argument 3 of 'seedexpander_init' differ in signedness [-Wpointer-sign]
kem.c:   125 |   seedexpander_init(ctx,seed,diversifier,maxlen);
kem.c:       |                              ^~~~~~~~~~~
kem.c:       |                              |
kem.c:       |                              char *
kem.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 (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`