Implementation notes: amd64, speed2supercop, crypto_aead/ascon80pqv12

Computer: speed2supercop
Microarchitecture: amd64; Haswell+AES (306c3)
Architecture: amd64
CPU ID: GenuineIntel-000306c3-1fc9cbf5
SUPERCOP version: 20240107
Operation: crypto_aead
Primitive: ascon80pqv12
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
6647615399 0 031093 752 928opt64gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
6648415399 0 029277 752 928opt64gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
6858814558 0 026704 728 896opt64gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
6882018341 0 034061 752 928refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
7538417890 0 031268 744 928opt64gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
784929738 0 023132 744 928refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8078810123 0 024021 752 928refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
827082087 0 017797 752 928opt64_lowsizegcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
830561498 0 013600 728 896opt64_lowsizegcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8378818271 0 032157 752 928opt32gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8386018271 0 033973 752 928opt32gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
853441808 0 015693 752 928opt64_lowsizegcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8819618365 0 030512 728 896opt32gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
889882815 0 016172 744 928opt64_lowsizegcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
943762124 0 017837 752 928opt32_lowsizegcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
9576421420 0 034788 744 928opt32gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
965841845 0 015733 752 928opt32_lowsizegcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1046041560 0 013656 728 896opt32_lowsizegcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1070322877 0 016228 744 928opt32_lowsizegcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1203562120 0 014304 728 896refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
18016813993 0 026120 728 896bi32gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
18172016699 0 030052 744 928bi32gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
18596015746 0 031429 752 928bi32gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
18602415765 0 029629 752 928bi32gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
18997210863 0 024340 744 928bi32_lowreggcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1926802290 0 014400 728 896bi32_lowsizegcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1954288236 0 020456 728 896bi32_lowreggcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1983802732 0 016100 744 928bi32_lowsizegcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1985489466 0 025253 752 928bi32_lowreggcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
1991249466 0 023437 752 928bi32_lowreggcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
2065002717 0 016621 752 928bi32_lowsizegcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
2078923108 0 018837 752 928bi32_lowsizegcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8126889859 0 025165 752 928bi8gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
8150569875 0 023349 752 928bi8gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
91780810284 0 022064 728 896bi8gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
93844813558 0 026548 744 928bi8gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
13172764745 0 018677 752 928opt8gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
13291884552 0 018477 752 928opt8_lowsizegcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
15612125373 0 018764 744 928opt8_lowsizegcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
15620525557 0 018964 744 928opt8gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
17169084627 0 016776 728 896opt8_lowsizegcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
17252404798 0 016984 728 896opt8gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
17684647492 0 023237 752 928opt8gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107
17701007451 0 023197 752 928opt8_lowsizegcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2024011420240107

Compiler output

Implementation: T:asm_esp32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
ascon.S: ascon.S:1:10: fatal error: xtensa/coreasm.h: No such file or directory
ascon.S: 1 | #include <xtensa/coreasm.h>
ascon.S: | ^~~~~~~~~~~~~~~~~~
ascon.S: compilation terminated.

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:asm_esp32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:asm_esp32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:asm_esp32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:asm_esp32

Compiler output

Implementation: avr
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
permutations.S: permutations.S:29:10: fatal error: avr/io.h: No such file or directory
permutations.S: 29 | #include "avr/io.h"
permutations.S: | ^~~~~~~~~~
permutations.S: compilation terminated.

Number of similar (compiler,implementation) pairs: 6, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE avr
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE avr
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE avr
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE avr_lowsize
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE avr_lowsize
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE avr_lowsize

Compiler output

Implementation: avr
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE
aead.c: In file included from round.h:8,
aead.c: from permutations.h:11,
aead.c: from aead.c:4:
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:132:45: note: at offset 32 into destination object 's' of size [0, 32]
aead.c: 132 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:132:45: note: at offset 33 into destination object 's' of size [0, 32]
aead.c: 132 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: ...
permutations.S: permutations.S:29:10: fatal error: avr/io.h: No such file or directory
permutations.S: 29 | #include "avr/io.h"
permutations.S: | ^~~~~~~~~~
permutations.S: compilation terminated.

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE avr

Compiler output

Implementation: avr_lowsize
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE
aead.c: In file included from round.h:8,
aead.c: from permutations.h:11,
aead.c: from aead.c:4:
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:47:45: note: at offset 32 into destination object 's' of size [0, 32]
aead.c: 47 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:47:45: note: at offset 33 into destination object 's' of size [0, 32]
aead.c: 47 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: ...
permutations.S: permutations.S:29:10: fatal error: avr/io.h: No such file or directory
permutations.S: 29 | #include "avr/io.h"
permutations.S: | ^~~~~~~~~~
permutations.S: compilation terminated.

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE avr_lowsize

Compiler output

Implementation: T:esp32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
try.c: /usr/bin/ld: /tmp/cc6Y6TRE.o: in function `doit':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: /tmp/cc6Y6TRE.o: in function `test':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:esp32

Compiler output

Implementation: T:esp32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE
try.c: /usr/bin/ld: /tmp/ccbHE5FZ.o: in function `doit':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: /tmp/ccbHE5FZ.o: in function `test':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:esp32

Compiler output

Implementation: T:esp32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE
try.c: /usr/bin/ld: /tmp/ccqrrzf1.o: in function `doit':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: /tmp/ccqrrzf1.o: in function `test':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:esp32

Compiler output

Implementation: T:esp32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE
try.c: /usr/bin/ld: /tmp/ccOheA8v.o: in function `doit':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: /tmp/ccOheA8v.o: in function `test':
try.c: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_encrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: /usr/bin/ld: try-small.c:(.text+0x...): undefined reference to `crypto_aead_ascon80pqv12_esp32_timingleaks_decrypt'
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:esp32

Compiler output

Implementation: opt8
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE
aead.c: In file included from round.h:8,
aead.c: from permutations.h:11,
aead.c: from aead.c:4:
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:132:45: note: at offset 32 into destination object 's' of size [0, 32]
aead.c: 132 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:132:45: note: at offset 33 into destination object 's' of size [0, 32]
aead.c: 132 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:145:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: ...

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE opt8

Compiler output

Implementation: opt8_lowsize
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE
aead.c: In file included from round.h:8,
aead.c: from permutations.h:11,
aead.c: from aead.c:4:
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:47:45: note: at offset 32 into destination object 's' of size [0, 32]
aead.c: 47 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: | ^~
aead.c: aead.c: In function 'ascon_final':
aead.c: aead.c:47:45: note: at offset 33 into destination object 's' of size [0, 32]
aead.c: 47 | forceinline void ascon_final(ascon_state_t* s, const ascon_key_t* key) {
aead.c: | ~~~~~~~~~~~~~~~^
aead.c: In function 'memxor',
aead.c: inlined from 'ascon_final' at aead.c:60:3:
aead.c: word.h:100:12: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
aead.c: 100 | *dst++ ^= *src++;
aead.c: ...

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE opt8_lowsize