Implementation notes: amd64, katana, crypto_scalarmult/nistp256

Computer: katana
Architecture: amd64
CPU ID: GenuineIntel-000006f6-bfebfbff
SUPERCOP version: 20170105
Operation: crypto_scalarmult
Primitive: nistp256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
3912976	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer`	20161029	20161009
3928968	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20161029	20161009
3932272	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer`	20161029	20161009
3958160	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20161029	20161009
3971568	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer`	20161029	20161009
3978800	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20161029	20161009
3987328	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer`	20161029	20161009
3993408	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer`	20161029	20161009
3995104	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20161029	20161009
4128560	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20161029	20161009
4134304	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer`	20161029	20161009
4135688	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O3_-fomit-frame-pointer`	20161029	20161009
4190840	? ? ?	? ? ?	`mj32`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20161029	20161009
4192896	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O3_-fomit-frame-pointer`	20161029	20161009
4193872	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20161029	20161009
4194656	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20161029	20161009
4212296	? ? ?	? ? ?	`mj32`	`clang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments`	20161029	20161009
4227424	? ? ?	? ? ?	`mj32`	`gcc_-O3_-fomit-frame-pointer`	20161029	20161009
4228216	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20161029	20161009
4229240	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-O3_-fomit-frame-pointer`	20161029	20161009
4233624	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer`	20161029	20161009
4236544	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20161029	20161009
4236856	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20161029	20161009
4238712	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O3_-fomit-frame-pointer`	20161029	20161009
4242568	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer`	20161029	20161009
4242896	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O3_-fomit-frame-pointer`	20161029	20161009
4244216	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O3_-fomit-frame-pointer`	20161029	20161009
4248496	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer`	20161029	20161009
4267152	? ? ?	? ? ?	`mj32`	`clang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20161029	20161009
4270424	? ? ?	? ? ?	`mj32`	`clang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20161029	20161009
4271928	? ? ?	? ? ?	`mj32`	`clang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20161029	20161009
4274320	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer`	20161029	20161009
4276584	? ? ?	? ? ?	`mj32`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20161029	20161009
4286424	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20161029	20161009
4289472	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer`	20161029	20161009
4289496	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20161029	20161009
5313440	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer`	20161029	20161009
5334280	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer`	20161029	20161009
5334672	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer`	20161029	20161009
5364040	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20161029	20161009
5372560	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20161029	20161009
5403576	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer`	20161029	20161009
5434280	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20161029	20161009
5588928	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer`	20161029	20161009
5623568	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer`	20161029	20161009
5631144	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O2_-fomit-frame-pointer`	20161029	20161009
5631552	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-O2_-fomit-frame-pointer`	20161029	20161009
5679792	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O2_-fomit-frame-pointer`	20161029	20161009
5698280	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer`	20161029	20161009
5758984	? ? ?	? ? ?	`mj32`	`gcc_-O2_-fomit-frame-pointer`	20161029	20161009
5759144	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20161029	20161009
5764232	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20161029	20161009
5766792	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-O2_-fomit-frame-pointer`	20161029	20161009
5769528	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer`	20161029	20161009
5786120	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O2_-fomit-frame-pointer`	20161029	20161009
5787096	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O2_-fomit-frame-pointer`	20161029	20161009
5787560	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20161029	20161009
5798976	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer`	20161029	20161009
5907472	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O2_-fomit-frame-pointer`	20161029	20161009
5929960	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20161029	20161009
6372480	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20161029	20161009
6379800	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-Os_-fomit-frame-pointer`	20161029	20161009
6384512	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-Os_-fomit-frame-pointer`	20161029	20161009
6387800	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer`	20161029	20161009
6495968	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20161029	20161009
6503592	? ? ?	? ? ?	`mj32`	`gcc_-Os_-fomit-frame-pointer`	20161029	20161009
6540064	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer`	20161029	20161009
6543760	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-Os_-fomit-frame-pointer`	20161029	20161009
6546408	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer`	20161029	20161009
6548512	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer`	20161029	20161009
6556600	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20161029	20161009
6556720	? ? ?	? ? ?	`mj32`	`gcc_-m64_-Os_-fomit-frame-pointer`	20161029	20161009
6559712	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-Os_-fomit-frame-pointer`	20161029	20161009
6561304	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-Os_-fomit-frame-pointer`	20161029	20161009
6574112	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20161029	20161009
6582208	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-Os_-fomit-frame-pointer`	20161029	20161009
6626048	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer`	20161029	20161009
6638968	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20161029	20161009
6642064	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20161029	20161009
6649368	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20161029	20161009
6652472	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer`	20161029	20161009
6655808	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer`	20161029	20161009
6706760	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20161029	20161009
6707032	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer`	20161029	20161009
9684816	? ? ?	? ? ?	`mj32`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20161029	20161009
9736152	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=nocona_-O_-fomit-frame-pointer`	20161029	20161009
9739016	? ? ?	? ? ?	`mj32`	`gcc_-march=nocona_-O_-fomit-frame-pointer`	20161029	20161009
9938576	? ? ?	? ? ?	`mj32`	`gcc_-O_-fomit-frame-pointer`	20161029	20161009
9940168	? ? ?	? ? ?	`mj32`	`gcc_-m64_-O_-fomit-frame-pointer`	20161029	20161009
9942704	? ? ?	? ? ?	`mj32`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20161029	20161009
10128664	? ? ?	? ? ?	`mj32`	`gcc_-march=barcelona_-O_-fomit-frame-pointer`	20161029	20161009
10282624	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=k8_-O_-fomit-frame-pointer`	20161029	20161009
10283024	? ? ?	? ? ?	`mj32`	`gcc_-march=k8_-O_-fomit-frame-pointer`	20161029	20161009
10298096	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20161029	20161009
10317520	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=corei7_-O_-fomit-frame-pointer`	20161029	20161009
10410912	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer`	20161029	20161009
10435440	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-O_-fomit-frame-pointer`	20161029	20161009
10436808	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer`	20161029	20161009
10437536	? ? ?	? ? ?	`mj32`	`gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer`	20161029	20161009
54661896	? ? ?	? ? ?	`mj32`	`gcc`	20161029	20161009
54778928	? ? ?	? ? ?	`mj32`	`gcc_-funroll-loops`	20161029	20161009
55739976	? ? ?	? ? ?	`mj32`	`cc`	20161029	20161009

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