Implementation notes: armeabi, artik, crypto_stream/chacha20

Computer: artik
Architecture: armeabi
CPU ID: unknown CPU ID
SUPERCOP version: 20191221
Operation: crypto_stream
Primitive: chacha20

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
22703	4812 0 1	18403 440 880	`dolbeau/arm-neon`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
22838	4812 0 1	17427 440 848	`dolbeau/arm-neon`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
22856	4164 0 1	15705 436 848	`dolbeau/arm-neon`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
22932	4812 0 1	17427 440 848	`dolbeau/arm-neon`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
23306	4716 0 1	18307 440 880	`dolbeau/arm-neon`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
25320	1784 0 4	10266 412 848	`e/merged`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
30894	3076 0 1	16647 440 880	`e/regs`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
31392	3100 0 1	16671 440 880	`e/regs`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
31463	3100 0 1	15695 440 848	`e/regs`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
31474	2208 0 4	11226 420 856	`e/merged`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
31728	3100 0 1	15695 440 848	`e/regs`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
32544	2652 0 4	11442 420 856	`e/merged`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
32598	2776 0 1	15367 440 848	`e/ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
32633	2776 0 1	15367 440 848	`e/ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
32652	2828 0 4	13999 424 856	`e/ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
32708	2696 0 4	13863 424 856	`e/merged`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
32735	2788 0 1	16359 440 880	`e/ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
33248	2880 0 4	14047 424 856	`e/regs`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
33353	4004 0 1	16603 440 848	`e/merged`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
33361	4004 0 1	16603 440 848	`e/merged`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
33952	4004 0 1	17579 440 880	`e/merged`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
34181	3688 0 1	15209 436 848	`e/merged`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
35846	4056 0 1	17635 440 880	`e/merged`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
36790	2180 0 4	11194 420 856	`e/regs`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
37317	2132 0 4	10922 420 856	`e/regs`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
38934	2620 0 1	14133 436 848	`e/regs`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
39824	1676 0 4	10466 420 856	`e/ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
40847	2144 0 1	13661 436 848	`e/ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
41001	2776 0 1	16343 440 880	`e/ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200106	20191221
41008	1552 0 4	10570 420 856	`e/ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
43808	5196 0 4	13690 412 848	`dolbeau/generic-gccsimd128`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
45559	6176 0 4	14990 420 856	`dolbeau/generic-gccsimd128`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
47229	1692 0 4	10166 412 848	`e/regs`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
56402	1228 0 4	9702 412 848	`e/ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
59405	7832 0 4	19019 424 856	`dolbeau/generic-gccsimd128`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
59669	6608 0 4	15646 420 856	`dolbeau/generic-gccsimd128`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
234227	27744 0 4	36558 420 856	`dolbeau/generic-gccsimd256`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
301747	31924 0 4	40958 420 856	`dolbeau/generic-gccsimd256`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
317436	33740 0 4	44931 424 856	`dolbeau/generic-gccsimd256`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221
332849	27436 0 4	35930 412 848	`dolbeau/generic-gccsimd256`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200106	20191221

Test failure

Implementation: krovetz/vec128
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

error 111
crypto_stream_xor does not handle n=c overlap

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	krovetz/vec128
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	krovetz/vec128
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	krovetz/vec128
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	krovetz/vec128
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	krovetz/vec128

Compiler output

Implementation: dolbeau/arm-neon
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

chacha.c: In file included from chacha.c:12:0:
chacha.c: /usr/lib/gcc/arm-linux-gnueabihf/5/include/arm_neon.h:31:2: error: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
chacha.c: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
chacha.c: ^
chacha.c: In file included from chacha.c:95:0:
chacha.c: u4.h: In function 'crypto_stream_chacha20_dolbeau_arm_neon_ECRYPT_encrypt_bytes':
chacha.c: u4.h:30:3: error: unknown type name 'uint32x4_t'
chacha.c: uint32x4_t x_0 = vdupq_n_u32(x[0]);
chacha.c: ^
chacha.c: u4.h:30:20: warning: implicit declaration of function 'vdupq_n_u32' [-Wimplicit-function-declaration]
chacha.c: uint32x4_t x_0 = vdupq_n_u32(x[0]);
chacha.c: ^
chacha.c: u4.h:31:3: error: unknown type name 'uint32x4_t'
chacha.c: uint32x4_t x_1 = vdupq_n_u32(x[1]);
chacha.c: ^
chacha.c: u4.h:32:3: error: unknown type name 'uint32x4_t'
chacha.c: uint32x4_t x_2 = vdupq_n_u32(x[2]);
chacha.c: ^
chacha.c: u4.h:33:3: error: unknown type name 'uint32x4_t'
chacha.c: uint32x4_t x_3 = vdupq_n_u32(x[3]);
chacha.c: ^
chacha.c: u4.h:34:3: error: unknown type name 'uint32x4_t'
chacha.c: uint32x4_t x_4 = vdupq_n_u32(x[4]);
chacha.c: ^
chacha.c: u4.h:35:3: error: unknown type name 'uint32x4_t'
chacha.c: ...

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	dolbeau/arm-neon
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	dolbeau/arm-neon
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	dolbeau/arm-neon
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	dolbeau/arm-neon

Compiler output

Implementation: dolbeau/generic-gccsimd128
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

chacha.c: In file included from chacha.c:94:
chacha.c: ./u4.h:127:7: error: cannot convert between vector values of different size ('V' (vector of 4 'unsigned int' values) and 'int')
chacha.c: VEC4_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u4.h:29:56: note: expanded from macro 'VEC4_QUARTERROUND'
chacha.c: x_##a = x_##a + x_##b; t_##a = x_##d ^ x_##a; x_##d = VEC4_ROT(t_##a, 16); \
chacha.c: ^ ~~~~~ ~~
chacha.c: ./u4.h:23:29: note: expanded from macro 'VEC4_ROT'
chacha.c: #define VEC4_ROT(a,imm) ((a << imm) | (a >> (32-imm)))
chacha.c: ~ ^ ~~~
chacha.c: ./u4.h:127:7: error: cannot convert between vector values of different size ('V' (vector of 4 'unsigned int' values) and 'int')
chacha.c: VEC4_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u4.h:29:56: note: expanded from macro 'VEC4_QUARTERROUND'
chacha.c: x_##a = x_##a + x_##b; t_##a = x_##d ^ x_##a; x_##d = VEC4_ROT(t_##a, 16); \
chacha.c: ^~~~~~~~~~~~~~~~~~~
chacha.c: ./u4.h:23:42: note: expanded from macro 'VEC4_ROT'
chacha.c: #define VEC4_ROT(a,imm) ((a << imm) | (a >> (32-imm)))
chacha.c: ~ ^ ~~~~~~~~
chacha.c: ./u4.h:127:7: error: cannot convert between vector values of different size ('V' (vector of 4 'unsigned int' values) and 'int')
chacha.c: VEC4_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u4.h:30:56: note: expanded from macro 'VEC4_QUARTERROUND'
chacha.c: x_##c = x_##c + x_##d; t_##c = x_##b ^ x_##c; x_##b = VEC4_ROT(t_##c, 12); \
chacha.c: ^ ~~~~~ ~~
chacha.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd128
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd128
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd128
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd128
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd128

Compiler output

Implementation: dolbeau/generic-gccsimd256
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

chacha.c: In file included from chacha.c:94:
chacha.c: ./u8.h:138:7: error: cannot convert between vector values of different size ('V' (vector of 8 'unsigned int' values) and 'int')
chacha.c: VEC8_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u8.h:32:56: note: expanded from macro 'VEC8_QUARTERROUND'
chacha.c: x_##a = x_##a + x_##b; t_##a = x_##d ^ x_##a; x_##d = VEC8_ROT(t_##a, 16); \
chacha.c: ^ ~~~~~ ~~
chacha.c: ./u8.h:26:29: note: expanded from macro 'VEC8_ROT'
chacha.c: #define VEC8_ROT(a,imm) ((a << imm) | (a >> (32-imm)))
chacha.c: ~ ^ ~~~
chacha.c: ./u8.h:138:7: error: cannot convert between vector values of different size ('V' (vector of 8 'unsigned int' values) and 'int')
chacha.c: VEC8_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u8.h:32:56: note: expanded from macro 'VEC8_QUARTERROUND'
chacha.c: x_##a = x_##a + x_##b; t_##a = x_##d ^ x_##a; x_##d = VEC8_ROT(t_##a, 16); \
chacha.c: ^~~~~~~~~~~~~~~~~~~
chacha.c: ./u8.h:26:42: note: expanded from macro 'VEC8_ROT'
chacha.c: #define VEC8_ROT(a,imm) ((a << imm) | (a >> (32-imm)))
chacha.c: ~ ^ ~~~~~~~~
chacha.c: ./u8.h:138:7: error: cannot convert between vector values of different size ('V' (vector of 8 'unsigned int' values) and 'int')
chacha.c: VEC8_QUARTERROUND( 0, 4, 8,12);
chacha.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chacha.c: ./u8.h:33:56: note: expanded from macro 'VEC8_QUARTERROUND'
chacha.c: x_##c = x_##c + x_##d; t_##c = x_##b ^ x_##c; x_##b = VEC8_ROT(t_##c, 12); \
chacha.c: ^ ~~~~~ ~~
chacha.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd256
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd256
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd256
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd256
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	dolbeau/generic-gccsimd256

Compiler output

Implementation: krovetz/vec128
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

stream.c: stream.c:80:2: error: #error -- Implementation supports only machines with neon, altivec or SSE2
stream.c: #error -- Implementation supports only machines with neon, altivec or SSE2
stream.c: ^
stream.c: stream.c: In function 'crypto_stream_chacha20_krovetz_vec128_xor':
stream.c: stream.c:151:14: warning: implicit declaration of function 'NONCE' [-Wimplicit-function-declaration]
stream.c: vec s3 = NONCE(np);
stream.c: ^
stream.c: stream.c:151:14: error: incompatible types when initializing type 'vec {aka __vector(4) unsigned int}' using type 'int'
stream.c: stream.c:91:19: error: 'VBPI' undeclared (first use in this function)
stream.c: #define BPI (VBPI + GPR_TOO) /* Blocks computed per loop iteration */
stream.c: ^
stream.c: stream.c:152:36: note: in expansion of macro 'BPI'
stream.c: for (iters = 0; iters < inlen/(BPI*64); iters++) {
stream.c: ^
stream.c: stream.c:91:19: note: each undeclared identifier is reported only once for each function it appears in
stream.c: #define BPI (VBPI + GPR_TOO) /* Blocks computed per loop iteration */
stream.c: ^
stream.c: stream.c:152:36: note: in expansion of macro 'BPI'
stream.c: for (iters = 0; iters < inlen/(BPI*64); iters++) {
stream.c: ^
stream.c: stream.c:91:26: error: 'GPR_TOO' undeclared (first use in this function)
stream.c: #define BPI (VBPI + GPR_TOO) /* Blocks computed per loop iteration */
stream.c: ^
stream.c: stream.c:152:36: note: in expansion of macro 'BPI'
stream.c: for (iters = 0; iters < inlen/(BPI*64); iters++) {
stream.c: ...

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	krovetz/vec128
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	krovetz/vec128
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	krovetz/vec128
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	krovetz/vec128

Compiler output

Implementation: moon/armv6/32
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_armv6_32':
try.c: crypto_stream.c:(.text+0x...): multiple definition of `crypto_stream_chacha20_moon_armv6_32'
try.c: crypto_stream_chacha20.a(chacha.o):(.text+0x...): first defined here
try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_armv6_32_xor':
try.c: crypto_stream.c:(.text+0x...): undefined reference to `crypto_stream_chacha12_moon_armv6_32'
try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_armv6_32':
try.c: crypto_stream.c:(.text+0x...): undefined reference to `crypto_stream_chacha12_moon_armv6_32'
try.c: clang: error: linker command failed with exit code 1 (use -v to see invocation)

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/armv6/32
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/armv6/32
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/armv6/32
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/armv6/32
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/armv6/32

Compiler output

Implementation: moon/armv6/32
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/armv6/32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/armv6/32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/armv6/32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/armv6/32

Compiler output

Implementation: moon/neon/32
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_neon_32':
try.c: crypto_stream.c:(.text+0x...): multiple definition of `crypto_stream_chacha20_moon_neon_32'
try.c: crypto_stream_chacha20.a(chacha.o):(.text+0x...): first defined here
try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_neon_32_xor':
try.c: crypto_stream.c:(.text+0x...): undefined reference to `crypto_stream_chacha12_moon_neon_32'
try.c: crypto_stream_chacha20.a(crypto_stream.o): In function `crypto_stream_chacha20_moon_neon_32':
try.c: crypto_stream.c:(.text+0x...): undefined reference to `crypto_stream_chacha12_moon_neon_32'
try.c: clang: error: linker command failed with exit code 1 (use -v to see invocation)

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/neon/32
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/neon/32
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/neon/32
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/neon/32
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	moon/neon/32

Compiler output

Implementation: moon/neon/32
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/neon/32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/neon/32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/neon/32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	moon/neon/32