Implementation notes: ppc64, power9, crypto_kem/oddmanhattan256

Computer: power9
Architecture: ppc64
CPU ID: unknown CPU ID
SUPERCOP version: 20210326
Operation: crypto_kem
Primitive: oddmanhattan256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
6258828488580 8 52257927 780 2080T:optgcc_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6277189018580 8 52257927 780 2080T:optgcc_-mcpu=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6403766338504 8 52258131 780 2080T:optgcc_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6416314858992 8 52259116 772 2048T:optclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
64537740517984 16 104259116 772 2048T:optclang_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6502469637112 8 52255116 772 2048T:optclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6528710076472 8 52251382 764 2032T:optclang_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6533969195916 8 52251419 772 2040T:optgcc_-mcpu=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6567525197112 8 52255116 772 2048T:optclang_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6586927238896 8 52257484 772 2048T:optclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6647720007740 8 52255675 780 2048T:optgcc_-mcpu=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6686979485916 8 52251419 772 2040T:optgcc_-mcpu=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6701409876472 8 52251382 764 2032T:optclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6726898746104 8 52250422 764 2032T:optclang_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
6743180947072 8 52254407 780 2048T:optgcc_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6765947907740 8 52255675 780 2048T:optgcc_-mcpu=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6766537527060 8 52254407 780 2048T:optgcc_-mcpu=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6781710047728 8 52255735 780 2048T:optgcc_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
6859027467060 8 52254407 780 2048T:optgcc_-mcpu=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
7347016496104 8 52250422 764 2032T:optclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
9670825305948 8 52251463 772 2040T:optgcc_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
16182722836660 8 52249439 780 2048T:refgcc_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
16236866705416 8 52245098 764 2032T:refclang_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
16286461486224 8 52248339 780 2048T:refgcc_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
171756298815392 16 104252576 772 2048T:refclang_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
17952455946212 8 52248339 780 2048T:refgcc_-mcpu=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
18826555345416 8 52245098 764 2032T:refclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
19791021216212 8 52248339 780 2048T:refgcc_-mcpu=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
21639241765196 8 52245471 772 2040T:refgcc_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
25177776467528 8 52251663 780 2080T:refgcc_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
29048113635124 8 52244202 764 2032T:refclang_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
29071947335124 8 52244202 764 2032T:refclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
30009997736672 8 52249379 780 2048T:refgcc_-mcpu=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
30311277666672 8 52249379 780 2048T:refgcc_-mcpu=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
33215227195232 8 52245479 772 2040T:refgcc_-mcpu=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
33340557915232 8 52245479 772 2040T:refgcc_-mcpu=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
35089910917632 8 52251008 772 2048T:refclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
38003059237468 8 52251867 780 2080T:refgcc_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021042320210326
38421006266120 8 52248896 772 2048T:refclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
39367072236120 8 52248896 772 2048T:refclang_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
41097170057696 8 52252576 772 2048T:refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021042320210326
44598076617528 8 52251663 780 2080T:refgcc_-mcpu=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-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