Implementation notes: amd64, pmnod003, crypto_scalarmult/nistp256

Computer: pmnod003
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20190910
Operation: crypto_scalarmult
Primitive: nistp256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
2503550	19472 30720 0	53923 31616 1576	`mj32`	`icc_-xSSE4.1_-O2_-fomit-frame-pointer`	20190912	20190910
2535060	19416 30720 0	53939 31616 1576	`mj32`	`icc_-xSSE4.1_-O3_-fomit-frame-pointer`	20190912	20190910
2537086	20416 30720 0	55927 31616 1576	`mj32`	`icc_-xAVX_-O2_-fomit-frame-pointer`	20190912	20190910
2537158	20416 30720 0	55927 31616 1576	`mj32`	`icc_-xCORE-AVX-I_-O2_-fomit-frame-pointer`	20190912	20190910
2544084	20288 30720 0	55831 31616 1576	`mj32`	`icc_-xCORE-AVX-I_-O3_-fomit-frame-pointer`	20190912	20190910
2546376	20288 30720 0	55831 31616 1576	`mj32`	`icc_-xAVX_-O3_-fomit-frame-pointer`	20190912	20190910
2554468	19320 30720 0	53527 31616 1576	`mj32`	`icc_-xSSE4.2_-O3_-fomit-frame-pointer`	20190912	20190910
2587162	19376 30720 0	53527 31616 1576	`mj32`	`icc_-xSSE4.2_-O2_-fomit-frame-pointer`	20190912	20190910
2707350	18720 30720 0	54676 31608 1608	`mj32`	`icc_-xCORE-AVX512_-O2_-fomit-frame-pointer`	20190912	20190910
2728634	18720 30720 0	54580 31608 1608	`mj32`	`icc_-xCORE-AVX512_-O3_-fomit-frame-pointer`	20190912	20190910
2740028	18832 30720 0	54492 31608 1576	`mj32`	`icc_-xCORE-AVX2_-O2_-fomit-frame-pointer`	20190912	20190910
2752406	18832 30720 0	54076 31608 1576	`mj32`	`icc_-xCORE-AVX2_-O3_-fomit-frame-pointer`	20190912	20190910
2761688	18704 30720 0	54692 31608 1608	`mj32`	`icc_-xCOMMON-AVX512_-O2_-fomit-frame-pointer`	20190912	20190910
2805272	18704 30720 0	54164 31608 1608	`mj32`	`icc_-xCOMMON-AVX512_-O3_-fomit-frame-pointer`	20190912	20190910
2855222	12736 30720 0	46433 31576 1608	`mj32`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20190912	20190910
3781996	11013 30720 0	42097 31576 1608	`mj32`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20190912	20190910
4394002	9972 30720 0	39073 31568 1608	`mj32`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20190912	20190910
7806050	11252 30720 0	41417 31576 1608	`mj32`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20190912	20190910

Compiler output

Implementation: mj32
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

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: 83 | 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: 78 | 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: 92 | 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: 87 | static int isneutral_precomp(gep256_precomp p) {
gep256.c: | ~~~~~~~~~~~~~~~^

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	mj32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	mj32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	mj32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	mj32