Implementation notes: amd64, r24000, crypto_kem/sikep434

Computer: r24000
Microarchitecture: amd64; Coffee Lake (906ea)
Architecture: amd64
CPU ID: GenuineIntel-000906ea-bfebfbff
SUPERCOP version: 20230530
Operation: crypto_kem
Primitive: sikep434
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
1974891164956 0 086653 812 1744T:mulxadxclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
1975692769254 0 090109 812 1744T:mulxadxclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
1979499266126 0 087701 812 1744T:mulxadxclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
1982791164956 0 086653 812 1744T:mulxadxclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2006259832200 0 051255 804 1744T:mulxadxclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2058374853579 0 077056 812 1776T:mulxadxgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2059289168865 0 089725 812 1744T:mulxclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2065574665737 0 087317 812 1744T:mulxclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2067313564567 0 086269 812 1744T:mulxclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2068058264567 0 086269 812 1744T:mulxclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2072245332874 0 053720 812 1776T:mulxadxgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2083682031811 0 050871 804 1744T:mulxclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
2134171453190 0 076672 812 1776T:mulxgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2136058330986 0 051824 812 1776T:mulxadxgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2139177724639 0 043912 804 1744T:mulxadxgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2150183032485 0 053336 812 1776T:mulxgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2199430330597 0 051440 812 1776T:mulxgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
2218726524250 0 043528 804 1744T:mulxgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
18377443167452 0 089029 812 1744T:amd64clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
18974836163290 0 084989 812 1744T:amd64clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
18975539263290 0 084989 812 1744T:amd64clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
19083679070162 0 091021 812 1744T:amd64clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
19917864785210 0 0108696 812 1776T:amd64gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
22334071435718 0 054783 804 1744T:amd64clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
22864538537235 0 058080 812 1776T:amd64gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
23027045235543 0 056384 812 1776T:amd64gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
43264657523231 0 042520 804 1744T:amd64gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
262411696643358 1088 0292040 2644 1744T:refclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
262566800468653 1136 0322911 2684 1776T:refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
263650209237275 1136 0287303 2676 1744T:refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
264440541241117 1136 0292791 2684 1776T:refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005
265490453254324 1088 0303152 2644 1744T:refclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
265633828454324 1088 0303152 2644 1744T:refclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
266413959835548 1088 0281666 2636 1744T:refclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
266883444061190 1088 0309856 2644 1744T:refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2022101520221005
268033380041066 1136 0292671 2684 1776T:refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2022101520221005

Compiler output

Implementation: T:amd64asm
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
fp_x64_asm.S: fp_x64_asm.S:635:3: error: "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: # error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: ^
fp_x64_asm.S: fp_x64_asm.S:826:5: error: "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: # error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: ^
fp_x64_asm.S: 2 errors generated.

Number of similar (compiler,implementation) pairs: 5, namely:
CompilerImplementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64asm
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64asm
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64asm
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64asm
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64asm

Compiler output

Implementation: T:amd64asm
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
fp_x64_asm.S: fp_x64_asm.S:635:3: error: #error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: 635 | # error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: | ^~~~~
fp_x64_asm.S: fp_x64_asm.S:826:5: error: #error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: 826 | # error "CONFIGURATION NOT SUPPORTED. TRY USE_MULX=TRUE"
fp_x64_asm.S: | ^~~~~

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64asm
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64asm
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64asm
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64asm

Namespace violations

Implementation: T:amd64
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
P434.o A_gen R
P434.o Alice_order R
P434.o B_gen R
P434.o Bob_order R
P434.o EphemeralKeyGeneration_A_SIDHp434 T
P434.o EphemeralKeyGeneration_B_SIDHp434 T
P434.o EphemeralSecretAgreement_A_SIDHp434 T
P434.o EphemeralSecretAgreement_B_SIDHp434 T
P434.o Montgomery_R2 R
P434.o Montgomery_one R
P434.o clear_words T
P434.o copy_words T
P434.o ct_cmov T
P434.o ct_compare T
P434.o eval_3_isog T
P434.o eval_4_isog T
P434.o fp2add434 T
P434.o fp2copy434 T
P434.o fp2correction434 T
P434.o fp2div2_434 T
P434.o fp2inv434_mont T
P434.o fp2mul434_mont T
P434.o fp2neg434 T
P434.o fp2sqr434_mont T
P434.o fp2sub434 T
P434.o fp2zero434 T
P434.o fpcopy434 T
P434.o fpinv434_chain_mont T
P434.o fpinv434_mont T
P434.o fpmul434_mont T
P434.o fpsqr434_mont T
P434.o fpzero434 T
P434.o from_fp2mont T
P434.o from_mont T
P434.o get_3_isog T
P434.o get_4_isog T
P434.o get_A T
P434.o inv_3_way T
P434.o j_inv T
P434.o mp_add T
P434.o mp_shiftl1 T
P434.o mp_shiftleft T
P434.o mp_shiftr1 T
P434.o mp_sub T
P434.o p434 R
P434.o p434p1 R
P434.o p434x16p R
P434.o p434x2 R
P434.o p434x4 R
P434.o random_mod_order_A_SIDHp434 T
P434.o random_mod_order_B_SIDHp434 T
P434.o strat_Alice R
P434.o strat_Bob R
P434.o to_fp2mont T
P434.o to_mont T
P434.o xDBL T
P434.o xDBLADD T
P434.o xDBLe T
P434.o xTPL T
P434.o xTPLe T
fips202.o KeccakF1600_StatePermute T
fips202.o shake128 T
fips202.o shake128_absorb T
fips202.o shake128_squeezeblocks T
fips202.o shake256 T
fips202.o shake256_absorb T
fips202.o shake256_squeezeblocks T
fp_generic.o digit_x_digit T
fp_generic.o fpadd434 T
fp_generic.o fpcorrection434 T
fp_generic.o fpdiv2_434 T
fp_generic.o fpneg434 T
fp_generic.o fpsub434 T
fp_generic.o mp_mul T
fp_generic.o mp_sub434_p2 T
fp_generic.o mp_sub434_p4 T
fp_generic.o rdc_mont T

Number of similar (compiler,implementation) pairs: 9, namely:
CompilerImplementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:amd64
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:amd64

Namespace violations

Implementation: T:mulx
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
P434.o A_gen R
P434.o Alice_order R
P434.o B_gen R
P434.o Bob_order R
P434.o EphemeralKeyGeneration_A_SIDHp434 T
P434.o EphemeralKeyGeneration_B_SIDHp434 T
P434.o EphemeralSecretAgreement_A_SIDHp434 T
P434.o EphemeralSecretAgreement_B_SIDHp434 T
P434.o Montgomery_R2 R
P434.o Montgomery_one R
P434.o clear_words T
P434.o copy_words T
P434.o ct_cmov T
P434.o ct_compare T
P434.o eval_3_isog T
P434.o eval_4_isog T
P434.o fp2add434 T
P434.o fp2copy434 T
P434.o fp2correction434 T
P434.o fp2div2_434 T
P434.o fp2inv434_mont T
P434.o fp2mul434_mont T
P434.o fp2neg434 T
P434.o fp2sqr434_mont T
P434.o fp2sub434 T
P434.o fp2zero434 T
P434.o fpcopy434 T
P434.o fpinv434_chain_mont T
P434.o fpinv434_mont T
P434.o fpmul434_mont T
P434.o fpsqr434_mont T
P434.o fpzero434 T
P434.o from_fp2mont T
P434.o from_mont T
P434.o get_3_isog T
P434.o get_4_isog T
P434.o get_A T
P434.o inv_3_way T
P434.o j_inv T
P434.o mp_add T
P434.o mp_shiftl1 T
P434.o mp_shiftleft T
P434.o mp_shiftr1 T
P434.o mp_sub T
P434.o p434 R
P434.o p434p1 R
P434.o p434x16p R
P434.o p434x2 R
P434.o p434x4 R
P434.o random_mod_order_A_SIDHp434 T
P434.o random_mod_order_B_SIDHp434 T
P434.o strat_Alice R
P434.o strat_Bob R
P434.o to_fp2mont T
P434.o to_mont T
P434.o xDBL T
P434.o xDBLADD T
P434.o xDBLe T
P434.o xTPL T
P434.o xTPLe T
fips202.o KeccakF1600_StatePermute T
fips202.o shake128 T
fips202.o shake128_absorb T
fips202.o shake128_squeezeblocks T
fips202.o shake256 T
fips202.o shake256_absorb T
fips202.o shake256_squeezeblocks T
fp_x64.o fpadd434 T
fp_x64.o fpcorrection434 T
fp_x64.o fpdiv2_434 T
fp_x64.o fpneg434 T
fp_x64.o fpsub434 T
fp_x64.o mp_mul T
fp_x64.o mp_sub434_p2 T
fp_x64.o mp_sub434_p4 T
fp_x64.o rdc_mont T
fp_x64_asm.o fpadd434_asm T
fp_x64_asm.o fpsub434_asm T
fp_x64_asm.o mp_add434_asm T
fp_x64_asm.o mp_dblsub434x2_asm T
fp_x64_asm.o mp_sub434_p2_asm T
fp_x64_asm.o mp_sub434_p4_asm T
fp_x64_asm.o mp_subadd434x2_asm T
fp_x64_asm.o mul434_asm T
fp_x64_asm.o rdc434_asm T

Number of similar (compiler,implementation) pairs: 18, namely:
CompilerImplementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulx
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulx
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulx
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulx
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulx
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulx
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulx
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulx
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulx
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulxadx
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulxadx
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulxadx
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulxadx
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:mulxadx
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulxadx
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulxadx
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulxadx
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:mulxadx

Namespace violations

Implementation: T:ref
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
api_generic.o crypto_kem_dec_generic T
api_generic.o crypto_kem_enc_generic T
api_generic.o crypto_kem_keypair_generic T
encoding.o clear_free T
encoding.o encapstoos T
encoding.o encapstoos_alloc T
encoding.o encapstoos_len T
encoding.o fp2toos T
encoding.o fp2toos_alloc T
encoding.o fp2toos_len T
encoding.o ostoencaps T
encoding.o ostofp T
encoding.o ostofp2 T
encoding.o ostoi T
encoding.o ostopk T
encoding.o ostosk T
encoding.o pktoos T
encoding.o pktoos_alloc T
encoding.o pktoos_len T
encoding.o sktoos T
encoding.o sktoos_len T
fips202.o KeccakF1600_StatePermute T
fips202.o cshake128_simple T
fips202.o cshake128_simple_absorb T
fips202.o cshake128_simple_squeezeblocks T
fips202.o cshake256_simple T
fips202.o cshake256_simple_absorb T
fips202.o cshake256_simple_squeezeblocks T
fips202.o shake128 T
fips202.o shake128_absorb T
fips202.o shake128_squeezeblocks T
fips202.o shake256 T
fips202.o shake256_absorb T
fips202.o shake256_squeezeblocks T
fp.o fp_Add T
fp.o fp_Clear T
fp.o fp_Constant T
fp.o fp_Copy T
fp.o fp_ImportHex T
fp.o fp_Init T
fp.o fp_Invert T
fp.o fp_IsBitSet T
fp.o fp_IsConstant T
fp.o fp_IsEqual T
fp.o fp_Multiply T
fp.o fp_Negative T
fp.o fp_Pow T
fp.o fp_Rand T
fp.o fp_Square T
fp.o fp_Subtract T
fp.o fp_Unity T
fp.o fp_Zero T
fp.o mp_export T
fp.o mp_import T
fp.o mp_mod T
fp.o mp_pow T
fp.o mp_sizeinbase T
fp.o set_gmp_fp_params T
fp2.o fp2_Add T
fp2.o fp2_AddDeg1 T
fp2.o fp2_Clear T
fp2.o fp2_Copy T
fp2.o fp2_Init T
fp2.o fp2_Init_set T
fp2.o fp2_Invert T
fp2.o fp2_IsConst T
fp2.o fp2_IsEqual T
fp2.o fp2_Multiply T
fp2.o fp2_Negative T
fp2.o fp2_Rand T
fp2.o fp2_Set T
fp2.o fp2_Sqrt T
fp2.o fp2_Square T
fp2.o fp2_Sub T
isogeny.o curve_2_iso T
isogeny.o curve_3_iso T
isogeny.o curve_4_iso T
isogeny.o eval_2_iso T
isogeny.o eval_3_iso T
isogeny.o eval_4_iso T
isogeny.o iso_2_e T
isogeny.o iso_3_e T
montgomery.o get_xR T
montgomery.o get_yP_yQ_A_B T
montgomery.o j_inv T
montgomery.o mont_curve_clear T
montgomery.o mont_curve_copy T
montgomery.o mont_curve_init T
montgomery.o mont_double_and_add T
montgomery.o mont_pt_clear T
montgomery.o mont_pt_copy T
montgomery.o mont_pt_init T
montgomery.o public_key_clear T
montgomery.o public_key_init T
montgomery.o xADD T
montgomery.o xDBL T
montgomery.o xDBLe T
montgomery.o xTPL T
montgomery.o xTPLe T
sidh.o sidh_isoex T
sidh.o sidh_isogen T
sidh.o sidh_sk_keygen T
sike.o sike_kem_decaps T
sike.o sike_kem_encaps T
sike.o sike_kem_keygen T
sike.o sike_pke_dec T
sike.o sike_pke_enc T
sike_params.o SIKEp434 D
sike_params.o SIKEp503 D
sike_params.o SIKEp610 D
sike_params.o SIKEp751 D
sike_params.o sike_setup_params T
sike_params.o sike_teardown_params T

Number of similar (compiler,implementation) pairs: 9, namely:
CompilerImplementations
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 -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref