Implementation notes: ppc64, power9, crypto_kem/oddmanhattan128

Computer: power9
Architecture: ppc64
CPU ID: unknown CPU ID
SUPERCOP version: 20210326
Operation: crypto_kem
Primitive: oddmanhattan128
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
1531681767476 8 52255287 780 2048T:optgcc_-mcpu=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1541314827476 8 52255287 780 2048T:optgcc_-mcpu=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1546649436820 8 52254087 780 2048T:optgcc_-mcpu=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1557834447096 8 52254956 772 2048T:optclang_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1559657386820 8 52254087 780 2048T:optgcc_-mcpu=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1560814205740 8 52251131 772 2040T:optgcc_-mcpu=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1561145465740 8 52251131 772 2040T:optgcc_-mcpu=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1563475315960 8 52250710 764 2032T:optclang_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1568724275564 8 52249750 764 2032T:optclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1569454537488 8 52255347 780 2048T:optgcc_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1569629718652 8 52257883 780 2080T:optgcc_-mcpu=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1571244938652 8 52257883 780 2080T:optgcc_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1579425435564 8 52249750 764 2032T:optclang_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1579871768544 8 52258031 780 2080T:optgcc_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1583465175960 8 52250710 764 2032T:optclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1583814146832 8 52254119 780 2048T:optgcc_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
1591166417096 8 52254956 772 2048T:optclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1596903368656 8 52257132 772 2048T:optclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
15975130917440 16 104258700 772 2048T:optclang_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1600156628720 8 52258700 772 2048T:optclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
1602300075740 8 52251135 772 2040T:optgcc_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3237384496040 8 52248672 772 2048T:refclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3241909107648 8 52250880 772 2048T:refclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3252156657712 8 52252480 772 2048T:refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3264607586040 8 52248672 772 2048T:refclang_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3264745286620 8 52249267 780 2048T:refgcc_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3269303335124 8 52244074 764 2032T:refclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3292850096140 8 52248163 780 2048T:refgcc_-mcpu=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3305368825172 8 52245307 772 2040T:refgcc_-mcpu=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3307367116152 8 52248195 780 2048T:refgcc_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3322697695172 8 52245307 772 2040T:refgcc_-mcpu=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
33371277515424 16 104252480 772 2048T:refclang_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3354079067816 8 52251803 780 2080T:refgcc_-mcpu=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3360679467816 8 52251803 780 2080T:refgcc_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3361204155124 8 52244074 764 2032T:refclang_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3381990796636 8 52249203 780 2048T:refgcc_-mcpu=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3424777857672 8 52251947 780 2080T:refgcc_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3478965986140 8 52248163 780 2048T:refgcc_-mcpu=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3523719995136 8 52245299 772 2040T:refgcc_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3537799616636 8 52249203 780 2048T:refgcc_-mcpu=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
3548677425448 8 52244970 764 2032T:refclang_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
3656489405448 8 52244970 764 2032T:refclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326

Compiler output

Implementation: T:opt
Security model: timingleaks
Compiler: clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.

Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt

Compiler output

Implementation: T:opt
Security model: timingleaks
Compiler: clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.

Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.
kem.c: kem.c:30:15: warning: passing 'char [32]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c: randombytes(seed,crypto_kem_BYTES);
kem.c: ^~~~
kem.c: /home/supercop/supercop-20210326/supercop-data/power9/ppc64/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 with different sign [-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 with different sign [-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: 3 warnings generated.

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref

Namespace violations

Implementation: T:opt
Security model: timingleaks
Compiler: clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.o om_kem_dec T
kem.o om_kem_enc T
kem.o om_random_generator T
rng.o AES256_CTR_DRBG_Update T
rng.o AES256_ECB T
rng.o DRBG_ctx B
rng.o handleErrors T
rng.o seedexpander T
rng.o seedexpander_init T

Number of similar (compiler,implementation) pairs: 40, namely:
CompilerImplementations
clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt
gcc -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
gcc -mcpu=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:opt
clang -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:ref
gcc -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -mcpu=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref

Namespace violations

Implementation: T:opt
Security model: timingleaks
Compiler: clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
kem.o om_kem_dec T
kem.o om_kem_dec T
kem.o om_kem_enc T
kem.o om_kem_enc T
kem.o om_random_generator T
kem.o om_random_generator T
rng.o AES256_CTR_DRBG_Update T
rng.o AES256_CTR_DRBG_Update T
rng.o AES256_ECB T
rng.o AES256_ECB T
rng.o DRBG_ctx B
rng.o DRBG_ctx B
rng.o handleErrors T
rng.o handleErrors T
rng.o seedexpander T
rng.o seedexpander T
rng.o seedexpander_init T
rng.o seedexpander_init T

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:opt T:ref