Implementation notes: amd64, par, crypto_scalarmult/nistp256

Computer: par
Architecture: amd64
CPU ID: GenuineIntel-000406c3-bfebfbff
SUPERCOP version: 20161026
Operation: crypto_scalarmult
Primitive: nistp256

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
5462120	`mj32`	`gcc -funroll-loops -march=native -mcpu=native -O2`	20161214	20161026
5492140	`mj32`	`gcc -funroll-loops -march=native -mcpu=native -O3`	20161214	20161026
5737300	`mj32`	`gcc -march=native -mcpu=native -O3`	20161214	20161026
9205220	`mj32`	`gcc -march=native -mcpu=native -O2`	20161214	20161026
10281720	`mj32`	`gcc -funroll-loops -march=native -mcpu=native -Os`	20161214	20161026
10416700	`mj32`	`gcc -march=native -mcpu=native -Os`	20161214	20161026

Compiler output

Implementation: crypto_scalarmult/nistp256/mj32
Compiler: gcc -funroll-loops -march=native -mcpu=native -O2

fe.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
fep256.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
gep256.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
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 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 gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^
smult.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
uint32_pack_big.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
uint32_unpack_big.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
try.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
try.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
measure.c: gcc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead

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

Compiler	Implementations
gcc -funroll-loops -march=native -mcpu=native -O2	mj32
gcc -funroll-loops -march=native -mcpu=native -O3	mj32
gcc -funroll-loops -march=native -mcpu=native -Os	mj32
gcc -march=native -mcpu=native -O2	mj32
gcc -march=native -mcpu=native -O3	mj32
gcc -march=native -mcpu=native -Os	mj32