Implementation notes: aarch64, gcc185, crypto_kem/saber2

Computer: gcc185
Microarchitecture: aarch64; Skylark (503f0002)
Architecture: aarch64
CPU ID: 503f0002
SUPERCOP version: 20230530
Operation: crypto_kem
Primitive: saber2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
525525	85469 0 0	103875 840 1568	`T:neon2`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
525675	85469 0 0	103875 840 1568	`T:neon2`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
540150	24961 0 0	41827 840 1552	`T:neon2`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
545925	54701 0 0	71771 840 1552	`T:neon2`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
555525	53009 0 0	71285 824 1584	`T:neon2`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
578550	18969 0 0	36141 824 1568	`T:neon2`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
582450	18709 0 0	35187 824 1552	`T:neon2`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
592650	17673 0 0	33701 808 1552	`T:neon2`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
596400	76325 0 2464	94632 832 4032	`T:neon`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
597225	76325 0 2464	94632 832 4032	`T:neon`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
619500	50237 0 2464	67192 832 4016	`T:neon`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
628200	27145 0 2464	43904 832 4016	`T:neon`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
669900	22945 0 2464	39312 816 4016	`T:neon`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230621	20230530
678075	19153 0 0	36109 824 1568	`T:neon2`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
721875	62453 0 0	80670 872 4048	`T:neon`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
722175	18933 0 0	34854 856 4016	`T:neon`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
757425	22209 0 0	39270 872 4032	`T:neon`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
804675	21741 0 0	38590 872 4032	`T:neon`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
880575	39281 0 0	57805 824 1632	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
1770975	11741 0 0	28941 824 1616	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
1785525	12793 0 0	30229 824 1616	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530
1828950	11367 0 0	27589 808 1600	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230621	20230530

Compiler output

Implementation: T:avx2
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:5:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/immintrin.h:14:2: error: "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: #error "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: ^
SABER_indcpa.c: In file included from SABER_indcpa.c:5:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/immintrin.h:17:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/x86gprintrin.h:15:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/hresetintrin.h:42:27: error: invalid input constraint 'a' in asm
SABER_indcpa.c: __asm__ ("hreset $0" :: "a"(__eax));
SABER_indcpa.c: ^
SABER_indcpa.c: In file included from SABER_indcpa.c:5:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/immintrin.h:21:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:14:2: error: "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: #error "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: ^
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:54:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: return (__m64)__builtin_ia32_vec_init_v2si(__i, 0);
SABER_indcpa.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:133:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: return (__m64)__builtin_ia32_packsswb((__v4hi)__m1, (__v4hi)__m2);
SABER_indcpa.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:163:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2

Compiler output

Implementation: T:avx2
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:5:
SABER_indcpa.c: SABER_indcpa.h:4:10: fatal error: immintrin.h: No such file or directory
SABER_indcpa.c: #include <immintrin.h>
SABER_indcpa.c: ^~~~~~~~~~~~~
SABER_indcpa.c: compilation terminated.

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2

Compiler output

Implementation: T:avx2_nttmul
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:20:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/immintrin.h:14:2: error: "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: #error "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: ^
SABER_indcpa.c: In file included from SABER_indcpa.c:20:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/immintrin.h:17:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/x86gprintrin.h:15:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/hresetintrin.h:42:27: error: invalid input constraint 'a' in asm
SABER_indcpa.c: __asm__ ("hreset $0" :: "a"(__eax));
SABER_indcpa.c: ^
SABER_indcpa.c: In file included from SABER_indcpa.c:20:
SABER_indcpa.c: In file included from ./SABER_indcpa.h:4:
SABER_indcpa.c: In file included from /usr/lib64/clang/15.0.7/include/immintrin.h:21:
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:14:2: error: "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: #error "This header is only meant to be used on x86 and x64 architecture"
SABER_indcpa.c: ^
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:54:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: return (__m64)__builtin_ia32_vec_init_v2si(__i, 0);
SABER_indcpa.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:133:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: return (__m64)__builtin_ia32_packsswb((__v4hi)__m1, (__v4hi)__m2);
SABER_indcpa.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SABER_indcpa.c: /usr/lib64/clang/15.0.7/include/mmintrin.h:163:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
SABER_indcpa.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2_nttmul
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2_nttmul
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2_nttmul
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2_nttmul
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:avx2_nttmul

Compiler output

Implementation: T:avx2_nttmul
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:20:
SABER_indcpa.c: SABER_indcpa.h:4:10: fatal error: immintrin.h: No such file or directory
SABER_indcpa.c: #include <immintrin.h>
SABER_indcpa.c: ^~~~~~~~~~~~~
SABER_indcpa.c: compilation terminated.

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2_nttmul
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2_nttmul
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2_nttmul
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:avx2_nttmul

Compiler output

Implementation: T:neon
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

poly.c: poly.c:19:3: warning: call to undeclared function 'cshake128_simple'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf,SABER_N,nonce,seed,SABER_NOISESEEDBYTES);
poly.c: ^
poly.c: poly.c:34:3: warning: call to undeclared function 'cshake128_simple'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf0,SABER_N,nonce0,seed,SABER_NOISESEEDBYTES);
poly.c: ^
poly.c: 2 warnings generated.

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

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

Compiler output

Implementation: T:neon
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

poly.c: poly.c: In function 'poly_getnoise':
poly.c: poly.c:19:3: warning: implicit declaration of function 'cshake128_simple'; did you mean 'shake128'? [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf,SABER_N,nonce,seed,SABER_NOISESEEDBYTES);
poly.c: ^~~~~~~~~~~~~~~~
poly.c: shake128

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon

Compiler output

Implementation: T:neon2
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:22:
SABER_indcpa.c: ./rq_mul/neon_poly_rq_mul.c:272:15: warning: initializing 'uint16_t *' (aka 'unsigned short *') with an expression of type 'const uint16_t *' (aka 'const unsigned short *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
SABER_indcpa.c: uint16_t *c0 = poly,
SABER_indcpa.c: ^ ~~~~
SABER_indcpa.c: ./rq_mul/neon_poly_rq_mul.c:273:15: warning: initializing 'uint16_t *' (aka 'unsigned short *') with an expression of type 'const uint16_t *' (aka 'const unsigned short *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
SABER_indcpa.c: *c1 = &poly[1 * SB1],
SABER_indcpa.c: ^ ~~~~~~~~~~~~~~
SABER_indcpa.c: ./rq_mul/neon_poly_rq_mul.c:274:15: warning: initializing 'uint16_t *' (aka 'unsigned short *') with an expression of type 'const uint16_t *' (aka 'const unsigned short *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
SABER_indcpa.c: *c2 = &poly[2 * SB1],
SABER_indcpa.c: ^ ~~~~~~~~~~~~~~
SABER_indcpa.c: ./rq_mul/neon_poly_rq_mul.c:275:15: warning: initializing 'uint16_t *' (aka 'unsigned short *') with an expression of type 'const uint16_t *' (aka 'const unsigned short *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
SABER_indcpa.c: *c3 = &poly[3 * SB1],
SABER_indcpa.c: ^ ~~~~~~~~~~~~~~
SABER_indcpa.c: 4 warnings generated.
poly.c: poly.c:19:3: warning: call to undeclared function 'cshake128_simple'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf,SABER_N,nonce,seed,SABER_NOISESEEDBYTES);
poly.c: ^
poly.c: poly.c:34:3: warning: call to undeclared function 'cshake128_simple'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf0,SABER_N,nonce0,seed,SABER_NOISESEEDBYTES);
poly.c: ^
poly.c: 2 warnings generated.

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:neon2
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:neon2
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:neon2
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:neon2
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:neon2

Compiler output

Implementation: T:neon2
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

SABER_indcpa.c: In file included from SABER_indcpa.c:22:
SABER_indcpa.c: rq_mul/neon_poly_rq_mul.c: In function 'tc4_evaluate_neon_SB1':
SABER_indcpa.c: rq_mul/neon_poly_rq_mul.c:272:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
SABER_indcpa.c: uint16_t *c0 = poly,
SABER_indcpa.c: ^~~~
SABER_indcpa.c: rq_mul/neon_poly_rq_mul.c:273:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
SABER_indcpa.c: *c1 = &poly[1 * SB1],
SABER_indcpa.c: ^
SABER_indcpa.c: rq_mul/neon_poly_rq_mul.c:274:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
SABER_indcpa.c: *c2 = &poly[2 * SB1],
SABER_indcpa.c: ^
SABER_indcpa.c: rq_mul/neon_poly_rq_mul.c:275:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
SABER_indcpa.c: *c3 = &poly[3 * SB1],
SABER_indcpa.c: ^
poly.c: poly.c: In function 'poly_getnoise':
poly.c: poly.c:19:3: warning: implicit declaration of function 'cshake128_simple'; did you mean 'shake128'? [-Wimplicit-function-declaration]
poly.c: cshake128_simple(buf,SABER_N,nonce,seed,SABER_NOISESEEDBYTES);
poly.c: ^~~~~~~~~~~~~~~~
poly.c: shake128

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:neon2

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x0): multiple definition of `clock1'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x0): first defined here
try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x8): multiple definition of `clock2'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x8): first defined here
try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x10): multiple definition of `clock_kp_mv'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x10): first defined here
try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x18): multiple definition of `clock_cl_mv'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x18): first defined here
try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x20): multiple definition of `clock_kp_sm'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x20): first defined here
try.c: libcrypto_kem_saber2.a(SABER_indcpa.o):(.bss+0x28): multiple definition of `clock_cl_sm'
try.c: libcrypto_kem_saber2.a(kem.o):(.bss+0x28): first defined here
try.c: clang-15: 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	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