Implementation notes: amd64, alder, crypto_core/aes256decrypt

Computer: alder
Microarchitecture: amd64; Golden Cove (90675-00)
Architecture: amd64
CPU ID: GenuineIntel-00090675-00-bfebfbff
SUPERCOP version: 20240808
Operation: crypto_core
Primitive: aes256decrypt
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
215640 0 014240 812 952dolbeau/aesenc-intclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
216640 0 011678 804 920dolbeau/aesenc-intclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
217675 0 014440 780 984dolbeau/aesenc-intgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
218640 0 014096 812 952dolbeau/aesenc-intclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
2331142 0 012494 804 920dolbeau/aesenc-intclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
241702 0 012167 772 984dolbeau/aesenc-intgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
241722 0 011139 756 952dolbeau/aesenc-intgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
253745 0 012504 780 984dolbeau/aesenc-intgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
48911623 0 022067 756 952T:dolbeau/std-4rt-nodkgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
4907441 0 019224 780 984T:dolbeau/std-2rt-nodkgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
4935488 0 015939 756 952T:dolbeau/std-1rt-nodkgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
4947444 0 021200 780 984T:dolbeau/std-2rt-nodkgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
49411493 0 025160 812 920T:dolbeau/std-4rt-nodkclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
4975465 0 017256 780 984T:dolbeau/std-1rt-nodkgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
4995422 0 019184 780 984T:dolbeau/std-1rt-nodkgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5065384 0 019048 812 920T:dolbeau/std-1rt-nodkclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5147463 0 018951 772 984T:dolbeau/std-2rt-nodkgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
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5297497 0 021176 812 920T:dolbeau/std-2rt-nodkclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5307552 0 018003 756 952T:dolbeau/std-2rt-nodkgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5317493 0 020968 812 952T:dolbeau/std-2rt-nodkclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5317493 0 021112 812 952T:dolbeau/std-2rt-nodkclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
53111575 0 023352 780 984T:dolbeau/std-4rt-nodkgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
53211534 0 025016 812 952T:dolbeau/std-4rt-nodkclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
53311534 0 025160 812 952T:dolbeau/std-4rt-nodkclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
54211616 0 023111 772 984T:dolbeau/std-4rt-nodkgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
54311659 0 022710 804 920T:dolbeau/std-4rt-nodkclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5445508 0 018984 812 952T:dolbeau/std-1rt-nodkclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5455508 0 019128 812 952T:dolbeau/std-1rt-nodkclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
57311583 0 025344 780 984T:dolbeau/std-4rt-nodkgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
58211831 0 023206 804 920T:dolbeau/std-4rt-nodkclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
5955580 0 016630 804 920T:dolbeau/std-1rt-nodkclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
6157600 0 018646 804 920T:dolbeau/std-2rt-nodkclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
629140 0 013954 828 952T:opensslclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
629140 0 011392 820 920T:opensslclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
630140 0 013810 828 952T:opensslclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
630140 0 011680 820 920T:opensslclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
630138 0 014131 812 952T:opensslgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
630140 0 010758 788 952T:opensslgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
631140 0 014002 828 920T:opensslclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
631138 0 012123 812 952T:opensslgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
632139 0 011834 804 952T:opensslgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
7107999 0 019382 804 920T:dolbeau/std-2rt-nodkclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
7855839 0 017222 804 920T:dolbeau/std-1rt-nodkclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024071620240716
2854399311 0 023328 780 984refgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
3299545544 0 019384 812 952refclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
3320535672 0 019544 812 920refclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
3647693256 0 016952 812 952refclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
7654162212 0 013911 772 984refgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
7959582276 0 014264 780 984refgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
8544631964 0 012579 756 952refgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
10157952151 0 013430 804 920refclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808
10241362640 0 014238 804 920refclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024080820240808

Compiler output

core.c: core.c:72:16: error: always_inline function '_mm_aesimc_si128' requires target feature 'aes', but would be inlined into function 'aes256ni_setkey_decrypt' that is compiled without support for 'aes'
core.c:     rkeys[i] = _mm_aesimc_si128(tkeys[14-i]);
core.c:                ^
core.c: core.c:43:3: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
core.c:   BLOCK1(0x01);
core.c:   ^
core.c: core.c:24:11: note: expanded from macro 'BLOCK1'
core.c:   temp1 = _mm_aeskeygenassist_si128(temp2, IMM); \
core.c:           ^
core.c: /usr/lib/llvm-11/lib/clang/11.0.1/include/__wmmintrin_aes.h:136:12: note: expanded from macro '_mm_aeskeygenassist_si128'
core.c:   (__m128i)__builtin_ia32_aeskeygenassist128((__v2di)(__m128i)(C), (int)(R))
core.c:            ^
core.c: core.c:44:3: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
core.c:   BLOCK2(0x01);
core.c:   ^
core.c: core.c:34:11: note: expanded from macro 'BLOCK2'
core.c:   temp1 = _mm_aeskeygenassist_si128(temp0, IMM); \
core.c:           ^
core.c: /usr/lib/llvm-11/lib/clang/11.0.1/include/__wmmintrin_aes.h:136:12: note: expanded from macro '_mm_aeskeygenassist_si128'
core.c:   (__m128i)__builtin_ia32_aeskeygenassist128((__v2di)(__m128i)(C), (int)(R))
core.c:            ^
core.c: core.c:46:3: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
core.c:   BLOCK1(0x02);
core.c:   ^
core.c: core.c:24:11: note: expanded from macro 'BLOCK1'
core.c: ...
Number of similar (implementation,compiler) pairs: 1, namely:
ImplementationCompiler
dolbeau/aesenc-intclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)

Compiler output

core.c: core.c: In function 'aes256ni_setkey_decrypt':
core.c: core.c:70: warning: ignoring '#pragma unroll ' [-Wunknown-pragmas]
core.c:    70 | #pragma unroll(13)
core.c:       |
core.c: core.c: In function 'aes256ni_decrypt':
core.c: core.c:80: warning: ignoring '#pragma unroll ' [-Wunknown-pragmas]
core.c:    80 | #pragma unroll(13)
core.c:       |
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
dolbeau/aesenc-intgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Compiler output

core.c: In file included from core.c:9:
core.c: stdaes-common.h:548:21: warning: 'KT3' defined but not used [-Wunused-variable]
core.c:   548 | static unsigned int KT3[256] = KT0Data;
core.c:       |                     ^~~
core.c: stdaes-common.h:541:21: warning: 'KT2' defined but not used [-Wunused-variable]
core.c:   541 | static unsigned int KT2[256] = KT0Data;
core.c:       |                     ^~~
core.c: stdaes-common.h:534:21: warning: 'KT1' defined but not used [-Wunused-variable]
core.c:   534 | static unsigned int KT1[256] = KT0Data;
core.c:       |                     ^~~
core.c: stdaes-common.h:450:21: warning: 'RT3' defined but not used [-Wunused-variable]
core.c:   450 | static unsigned int RT3[256] = { RT };
core.c:       |                     ^~~
core.c: stdaes-common.h:443:21: warning: 'RT2' defined but not used [-Wunused-variable]
core.c:   443 | static unsigned int RT2[256] = { RT };
core.c:       |                     ^~~
core.c: stdaes-common.h:436:21: warning: 'RT1' defined but not used [-Wunused-variable]
core.c:   436 | static unsigned int RT1[256] = { RT };
core.c:       |                     ^~~
core.c: stdaes-common.h:108:21: warning: 'FT3' defined but not used [-Wunused-variable]
core.c:   108 | static unsigned int FT3[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:100:21: warning: 'FT2' defined but not used [-Wunused-variable]
core.c:   100 | static unsigned int FT2[256] = { FT };
core.c:       |                     ^~~
core.c: ...
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:dolbeau/std-1rt-nodkgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-1rt-nodkgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-1rt-nodkgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-1rt-nodkgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Compiler output

core.c: In file included from core.c:9:
core.c: stdaes-common.h:548:21: warning: 'KT3' defined but not used [-Wunused-variable]
core.c:   548 | static unsigned int KT3[256] = KT0Data;
core.c:       |                     ^~~
core.c: stdaes-common.h:541:21: warning: 'KT2' defined but not used [-Wunused-variable]
core.c:   541 | static unsigned int KT2[256] = KT0Data;
core.c:       |                     ^~~
core.c: stdaes-common.h:450:21: warning: 'RT3' defined but not used [-Wunused-variable]
core.c:   450 | static unsigned int RT3[256] = { RT };
core.c:       |                     ^~~
core.c: stdaes-common.h:443:21: warning: 'RT2' defined but not used [-Wunused-variable]
core.c:   443 | static unsigned int RT2[256] = { RT };
core.c:       |                     ^~~
core.c: stdaes-common.h:108:21: warning: 'FT3' defined but not used [-Wunused-variable]
core.c:   108 | static unsigned int FT3[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:100:21: warning: 'FT2' defined but not used [-Wunused-variable]
core.c:   100 | static unsigned int FT2[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:92:21: warning: 'FT1' defined but not used [-Wunused-variable]
core.c:    92 | static unsigned int FT1[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:84:21: warning: 'FT0' defined but not used [-Wunused-variable]
core.c:    84 | static unsigned int FT0[256] = { FT };
core.c:       |                     ^~~
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:dolbeau/std-2rt-nodkgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-2rt-nodkgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-2rt-nodkgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-2rt-nodkgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Compiler output

core.c: In file included from core.c:9:
core.c: stdaes-common.h:108:21: warning: 'FT3' defined but not used [-Wunused-variable]
core.c:   108 | static unsigned int FT3[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:100:21: warning: 'FT2' defined but not used [-Wunused-variable]
core.c:   100 | static unsigned int FT2[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:92:21: warning: 'FT1' defined but not used [-Wunused-variable]
core.c:    92 | static unsigned int FT1[256] = { FT };
core.c:       |                     ^~~
core.c: stdaes-common.h:84:21: warning: 'FT0' defined but not used [-Wunused-variable]
core.c:    84 | static unsigned int FT0[256] = { FT };
core.c:       |                     ^~~
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:dolbeau/std-4rt-nodkgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-4rt-nodkgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-4rt-nodkgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
T:dolbeau/std-4rt-nodkgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Compiler output

core.c: core.c:57:17: warning: unused variable 'result' [-Wunused-variable]
core.c:   unsigned char result;
core.c:                 ^
core.c: 1 warning generated.
Number of similar (implementation,compiler) pairs: 5, namely:
ImplementationCompiler
refclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)

Compiler output

core.c: core.c: In function 'bytesub':
core.c: core.c:57:17: warning: unused variable 'result' [-Wunused-variable]
core.c:    57 |   unsigned char result;
core.c:       |                 ^~~~~~
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
refgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Passed TIMECOP

TIMECOP iterations: 1
Number of similar (implementation,compiler) pairs: 17, namely:
ImplementationCompiler
dolbeau/aesenc-intclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
dolbeau/aesenc-intclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
dolbeau/aesenc-intclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
dolbeau/aesenc-intclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
dolbeau/aesenc-intgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
dolbeau/aesenc-intgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)