Implementation notes: amd64, hydra3, crypto_scalarmult/nistp256

Computer: hydra3
Architecture: amd64
CPU ID: AuthenticAMD-00100fa0-178bfbff
SUPERCOP version: 20171218
Operation: crypto_scalarmult
Primitive: nistp256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
3581567	? ? ?	? ? ?	`mj32`	`clang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments`	20171115	20171020
3599234	? ? ?	? ? ?	`mj32`	`clang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20171115	20171020
3599579	? ? ?	? ? ?	`mj32`	`clang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20171115	20171020
3602009	? ? ?	? ? ?	`mj32`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20171115	20171020
3605623	? ? ?	? ? ?	`mj32`	`clang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20171115	20171020
3606380	? ? ?	? ? ?	`mj32`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20171115	20171020
3668213	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20171115	20171020
3671211	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer`	20171115	20171020
3686949	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20171115	20171020
3706558	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer`	20171115	20171020
3708214	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer`	20171115	20171020
3730391	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer`	20171115	20171020
3736370	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20171115	20171020
3741509	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20171115	20171020
3742609	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer`	20171115	20171020
3801057	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20171115	20171020
3801798	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer`	20171115	20171020
3837132	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O3_-fomit-frame-pointer`	20171115	20171020
3842814	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20171115	20171020
3932348	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20171115	20171020
3933044	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20171115	20171020
3944645	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer`	20171115	20171020
3947086	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20171115	20171020
3948671	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20171115	20171020
3951656	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O3_-fomit-frame-pointer`	20171115	20171020
3957347	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O3_-fomit-frame-pointer`	20171115	20171020
3964302	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20171115	20171020
3966153	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O3_-fomit-frame-pointer`	20171115	20171020
3971395	? ? ?	? ? ?	`mj32`	`gcc_-O3_-fomit-frame-pointer`	20171115	20171020
3972304	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O3_-fomit-frame-pointer`	20171115	20171020
3979604	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer`	20171115	20171020
3983181	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer`	20171115	20171020
3996394	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer`	20171115	20171020
4042986	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20171115	20171020
4044672	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer`	20171115	20171020
4869211	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20171115	20171020
4870295	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer`	20171115	20171020
4884330	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer`	20171115	20171020
4887185	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer`	20171115	20171020
4902335	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer`	20171115	20171020
4952705	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer`	20171115	20171020
5059878	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer`	20171115	20171020
5082531	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20171115	20171020
5089803	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20171115	20171020
6235560	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O2_-fomit-frame-pointer`	20171115	20171020
6247904	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20171115	20171020
6250364	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer`	20171115	20171020
6259346	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20171115	20171020
6372521	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O2_-fomit-frame-pointer`	20171115	20171020
6374028	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20171115	20171020
6375148	? ? ?	? ? ?	`mj32`	`gcc_-O2_-fomit-frame-pointer`	20171115	20171020
6388270	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O2_-fomit-frame-pointer`	20171115	20171020
6465503	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O2_-fomit-frame-pointer`	20171115	20171020
6591110	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer`	20171115	20171020
6595999	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-O2_-fomit-frame-pointer`	20171115	20171020
6596487	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer`	20171115	20171020
6611136	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-O2_-fomit-frame-pointer`	20171115	20171020
6836079	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20171115	20171020
6841375	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O2_-fomit-frame-pointer`	20171115	20171020
7060665	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20171115	20171020
7067389	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer`	20171115	20171020
7147686	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer`	20171115	20171020
7148439	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20171115	20171020
7164102	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20171115	20171020
7188414	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer`	20171115	20171020
7192210	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer`	20171115	20171020
7205710	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20171115	20171020
7576116	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer`	20171115	20171020
7862629	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20171115	20171020
7975506	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-Os_-fomit-frame-pointer`	20171115	20171020
7976214	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20171115	20171020
7984885	? ? ?	? ? ?	`mj32`	`gcc_-m64_-Os_-fomit-frame-pointer`	20171115	20171020
7986918	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-Os_-fomit-frame-pointer`	20171115	20171020
7995047	? ? ?	? ? ?	`mj32`	`gcc_-Os_-fomit-frame-pointer`	20171115	20171020
7995058	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer`	20171115	20171020
7997883	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer`	20171115	20171020
8005953	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20171115	20171020
8008541	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-Os_-fomit-frame-pointer`	20171115	20171020
8019288	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-Os_-fomit-frame-pointer`	20171115	20171020
8019346	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-Os_-fomit-frame-pointer`	20171115	20171020
8208202	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer`	20171115	20171020
8353366	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-Os_-fomit-frame-pointer`	20171115	20171020
8496595	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20171115	20171020
11031378	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20171115	20171020
11133225	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer`	20171115	20171020
11148289	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O_-fomit-frame-pointer`	20171115	20171020
11212564	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20171115	20171020
11425056	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O_-fomit-frame-pointer`	20171115	20171020
11427626	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O_-fomit-frame-pointer`	20171115	20171020
12248331	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20171115	20171020
12296102	? ? ?	? ? ?	`mj32`	`gcc_-O_-fomit-frame-pointer`	20171115	20171020
12501690	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O_-fomit-frame-pointer`	20171115	20171020
12580975	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O_-fomit-frame-pointer`	20171115	20171020
12583056	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O_-fomit-frame-pointer`	20171115	20171020
13202628	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer`	20171115	20171020
13221207	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-O_-fomit-frame-pointer`	20171115	20171020
13256111	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer`	20171115	20171020
13263848	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-O_-fomit-frame-pointer`	20171115	20171020
56159795	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops`	20171115	20171020
56170657	? ? ?	? ? ?	`mj32`	`gcc`	20171115	20171020
56235279	? ? ?	? ? ?	`mj32`	`cc`	20171115	20171020

Test failure

Implementation: crypto_scalarmult/nistp256/mj32
Compiler: gcc -m64 -march=core2 -O3 -fomit-frame-pointer

error 111

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

Compiler	Implementations
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	mj32

Compiler output

Implementation: crypto_scalarmult/nistp256/mj32
Compiler: cc

Number of similar (compiler,implementation) pairs: 92, namely:

Compiler	Implementations
cc	mj32
gcc	mj32
gcc -O2 -fomit-frame-pointer	mj32
gcc -O3 -fomit-frame-pointer	mj32
gcc -O -fomit-frame-pointer	mj32
gcc -Os -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O2 -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O3 -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -Os -fomit-frame-pointer	mj32
gcc -funroll-loops	mj32
gcc -funroll-loops -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -O -fomit-frame-pointer	mj32
gcc -funroll-loops -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -O -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer	mj32
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer	mj32
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer	mj32
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer	mj32
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer	mj32
gcc -m64 -O2 -fomit-frame-pointer	mj32
gcc -m64 -O3 -fomit-frame-pointer	mj32
gcc -m64 -O -fomit-frame-pointer	mj32
gcc -m64 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -O -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer	mj32
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=corei7 -O -fomit-frame-pointer	mj32
gcc -m64 -march=corei7 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=k8 -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=k8 -O3 -fomit-frame-pointer	mj32
gcc -m64 -march=k8 -O -fomit-frame-pointer	mj32
gcc -m64 -march=k8 -Os -fomit-frame-pointer	mj32
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer	mj32
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer	mj32
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer	mj32
gcc -m64 -march=nocona -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=nocona -O3 -fomit-frame-pointer	mj32
gcc -m64 -march=nocona -O -fomit-frame-pointer	mj32
gcc -m64 -march=nocona -Os -fomit-frame-pointer	mj32
gcc -march=barcelona -O2 -fomit-frame-pointer	mj32
gcc -march=barcelona -O3 -fomit-frame-pointer	mj32
gcc -march=barcelona -O -fomit-frame-pointer	mj32
gcc -march=barcelona -Os -fomit-frame-pointer	mj32
gcc -march=k8 -O2 -fomit-frame-pointer	mj32
gcc -march=k8 -O3 -fomit-frame-pointer	mj32
gcc -march=k8 -O -fomit-frame-pointer	mj32
gcc -march=k8 -Os -fomit-frame-pointer	mj32
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	mj32
gcc -march=nocona -O2 -fomit-frame-pointer	mj32
gcc -march=nocona -O3 -fomit-frame-pointer	mj32
gcc -march=nocona -O -fomit-frame-pointer	mj32
gcc -march=nocona -Os -fomit-frame-pointer	mj32

Compiler output

Implementation: crypto_scalarmult/nistp256/mj32
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments

gep256.c: gep256.c:83:28: warning: sizeof on array function parameter will return size of 'fe *' (aka 'crypto_uint32 (*)[8]') instead of 'gep256' (aka 'fe [3]') [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: static int isneutral(gep256 p) {
gep256.c: ^
gep256.c: gep256.c:92:28: warning: sizeof on array function parameter will return size of 'fe *' (aka 'crypto_uint32 (*)[8]') instead of 'gep256_precomp' (aka 'fe [2]') [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^
gep256.c: 2 warnings generated.

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

Compiler	Implementations
clang -O3 -fomit-frame-pointer -Qunused-arguments	mj32
clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments	mj32
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	mj32
clang -mcpu=cortex-a8 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	mj32
clang -mcpu=cortex-a9 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	mj32
clang -mcpu=native -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	mj32

Compiler output

Implementation: crypto_scalarmult/nistp256/mj32
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer

gep256.c: gep256.c: In function 'isneutral':
gep256.c: gep256.c:83:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: static int isneutral(gep256 p) {
gep256.c: ^
gep256.c: gep256.c: In function 'isneutral_precomp':
gep256.c: gep256.c:92:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^
gep256.c: gep256.c: In function 'isneutral':
gep256.c: gep256.c:83:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: static int isneutral(gep256 p) {
gep256.c: ^
gep256.c: gep256.c: In function 'isneutral_precomp':
gep256.c: gep256.c:92:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^

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

Compiler	Implementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer	mj32
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer	mj32
gcc -m64 -march=barcelona -O -fomit-frame-pointer	mj32
gcc -m64 -march=barcelona -Os -fomit-frame-pointer	mj32