Implementation notes: amd64, cubi10, crypto_aead/lilliputaeii128v11

Computer: cubi10
Microarchitecture: amd64; Comet Lake (806ec)
Architecture: amd64
CPU ID: GenuineIntel-000806ec-bfebfbff
SUPERCOP version: 20240808
Operation: crypto_aead
Primitive: lilliputaeii128v11

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
2409774	7696 0 0	24768 812 1048	`T:add_tweakeyloop`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2411001	7672 0 0	24000 812 1016	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2414364	7656 0 0	24000 812 1016	`T:add_tweakeyloop`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2422144	7712 0 0	24768 812 1048	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2429170	7000 0 0	23344 812 1016	`T:add_felicsref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2449754	5900 0 0	22864 812 1048	`T:add_tweakeyloop`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2451298	5916 0 0	22864 812 1048	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2454208	7046 0 0	24112 812 1048	`T:add_felicsref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2481479	5664 0 0	22624 812 1048	`T:add_felicsref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2576898	8550 56 0	25256 836 1080	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2659797	8662 56 0	25368 836 1080	`T:add_tweakeyloop`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
2879192	7344 0 0	23824 780 1080	`T:add_felicsref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
3148905	4607 0 0	19184 780 1080	`T:add_felicsref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
3629896	5050 56 0	19848 836 1080	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
3681798	5162 56 0	19960 836 1080	`T:add_tweakeyloop`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
3721541	4463 56 0	18807 828 1080	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
3928794	4045 0 0	18191 772 1080	`T:add_felicsref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4016534	4251 0 0	17678 804 1016	`T:add_felicsref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4555560	4643 0 0	18670 804 1016	`T:add_felicsref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4646598	4981 56 0	19022 860 1016	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4716118	3624 0 0	16603 756 1048	`T:add_felicsref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4747086	4594 56 0	18038 860 1016	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4768423	4307 56 0	18655 828 1080	`T:add_tweakeyloop`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4836389	4691 56 0	18182 860 1016	`T:add_tweakeyloop`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
4879021	3950 56 0	17123 812 1048	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
5866915	3676 56 0	16851 812 1048	`T:add_tweakeyloop`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
5932320	4887 56 0	18934 860 1016	`T:add_tweakeyloop`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
13042527	9793 0 0	26872 812 1048	`T:add_threshold`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
13082232	7825 0 0	24808 812 1048	`T:add_threshold`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
13087937	9683 0 0	26040 812 1016	`T:add_threshold`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14173696	9858 0 0	26408 780 1080	`T:add_threshold`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14913399	6444 56 0	19934 860 1016	`T:add_threshold`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14938410	6578 56 0	20630 860 1016	`T:add_threshold`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15535475	7320 0 0	21952 780 1080	`T:add_threshold`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15608757	6428 0 0	20607 772 1080	`T:add_threshold`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
17647053	5954 0 0	18963 756 1048	`T:add_threshold`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716

Compiler output

tweakey.c: In file included from tweakey.c:33:
tweakey.c: ./multiplications.h:93:13: warning: unused function '_multiply_MR' [-Wunused-function]
tweakey.c: static void _multiply_MR(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:             ^
tweakey.c: ./multiplications.h:105:13: warning: unused function '_multiply_MR2' [-Wunused-function]
tweakey.c: static void _multiply_MR2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:             ^
tweakey.c: ./multiplications.h:119:13: warning: unused function '_multiply_MR3' [-Wunused-function]
tweakey.c: static void _multiply_MR3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:             ^
tweakey.c: 3 warnings generated.

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:add_felicsref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

tweakey.c: In file included from tweakey.c:33:
tweakey.c: multiplications.h:119:13: warning: '_multiply_MR3' defined but not used [-Wunused-function]
tweakey.c:   119 | static void _multiply_MR3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:       |             ^~~~~~~~~~~~~
tweakey.c: multiplications.h:105:13: warning: '_multiply_MR2' defined but not used [-Wunused-function]
tweakey.c:   105 | static void _multiply_MR2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:       |             ^~~~~~~~~~~~~
tweakey.c: multiplications.h:93:13: warning: '_multiply_MR' defined but not used [-Wunused-function]
tweakey.c:    93 | static void _multiply_MR(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
tweakey.c:       |             ^~~~~~~~~~~~

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

Implementation	Compiler
`T:add_felicsref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

cipher.c: cipher.c:173:24: warning: '&' within '^' [-Wbitwise-op-parentheses]
cipher.c:         tmp0 = P[Q[y_hi&3 ^ (y_hi&8)>>1][z_hi]];
cipher.c:                    ~~~~^~ ~
cipher.c: cipher.c:173:24: note: place parentheses around the '&' expression to silence this warning
cipher.c:         tmp0 = P[Q[y_hi&3 ^ (y_hi&8)>>1][z_hi]];
cipher.c:                        ^
cipher.c:                    (     )
cipher.c: cipher.c:174:24: warning: '&' within '^' [-Wbitwise-op-parentheses]
cipher.c:         tmp1 = P[Q[z_hi&3 ^ (z_hi&8)>>1][x_hi]];
cipher.c:                    ~~~~^~ ~
cipher.c: cipher.c:174:24: note: place parentheses around the '&' expression to silence this warning
cipher.c:         tmp1 = P[Q[z_hi&3 ^ (z_hi&8)>>1][x_hi]];
cipher.c:                        ^
cipher.c:                    (     )
cipher.c: cipher.c:175:24: warning: '&' within '^' [-Wbitwise-op-parentheses]
cipher.c:         tmp2 = P[Q[x_hi&3 ^ (x_hi&8)>>1][y_hi]];
cipher.c:                    ~~~~^~ ~
cipher.c: cipher.c:175:24: note: place parentheses around the '&' expression to silence this warning
cipher.c:         tmp2 = P[Q[x_hi&3 ^ (x_hi&8)>>1][y_hi]];
cipher.c:                        ^
cipher.c:                    (     )
cipher.c: cipher.c:176:23: warning: '&' within '^' [-Wbitwise-op-parentheses]
cipher.c:         x_lo ^= Q[tmp1&3 ^ (tmp1&8)>>1][tmp2];
cipher.c:                   ~~~~^~ ~
cipher.c: cipher.c:176:23: note: place parentheses around the '&' expression to silence this warning
cipher.c: ...

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:add_threshold`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

cipher.c: cipher.c: In function '_nonlinear_layer':
cipher.c: cipher.c:173:24: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   173 |         tmp0 = P[Q[y_hi&3 ^ (y_hi&8)>>1][z_hi]];
cipher.c:       |                    ~~~~^~
cipher.c: cipher.c:174:24: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   174 |         tmp1 = P[Q[z_hi&3 ^ (z_hi&8)>>1][x_hi]];
cipher.c:       |                    ~~~~^~
cipher.c: cipher.c:175:24: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   175 |         tmp2 = P[Q[x_hi&3 ^ (x_hi&8)>>1][y_hi]];
cipher.c:       |                    ~~~~^~
cipher.c: cipher.c:176:23: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   176 |         x_lo ^= Q[tmp1&3 ^ (tmp1&8)>>1][tmp2];
cipher.c:       |                   ~~~~^~
cipher.c: cipher.c:177:23: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   177 |         y_lo ^= Q[tmp2&3 ^ (tmp2&8)>>1][tmp0];
cipher.c:       |                   ~~~~^~
cipher.c: cipher.c:178:23: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
cipher.c:   178 |         z_lo ^= Q[tmp0&3 ^ (tmp0&8)>>1][tmp1];
cipher.c:       |                   ~~~~^~

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

Implementation	Compiler
`T:add_threshold`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Namespace violations

cipher.o lilliput_tbc_decrypt T
cipher.o lilliput_tbc_encrypt T
lilliput-ii.o lilliput_ae_decrypt T
lilliput-ii.o lilliput_ae_encrypt T
tweakey.o tweakey_state_extract T
tweakey.o tweakey_state_init T
tweakey.o tweakey_state_update T

Number of similar (implementation,compiler) pairs: 27, namely:

Implementation	Compiler
`T:add_felicsref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_felicsref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_felicsref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_tweakeyloop`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_tweakeyloop`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_tweakeyloop`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_tweakeyloop`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_tweakeyloop`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_tweakeyloop`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_tweakeyloop`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_tweakeyloop`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_tweakeyloop`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Namespace violations

cipher.o lilliput_tbc_decrypt T
cipher.o lilliput_tbc_encrypt T
lilliput-ii.o lilliput_ae_decrypt T
lilliput-ii.o lilliput_ae_encrypt T
random.o randombytes T
tweakey.o tweakey_state_extract T
tweakey.o tweakey_state_init T
tweakey.o tweakey_state_update T

Number of similar (implementation,compiler) pairs: 9, namely:

Implementation	Compiler
`T:add_threshold`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:add_threshold`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:add_threshold`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`