Implementation notes: amd64, zen3, crypto_kem/nhcompact768cca

Computer: zen3
Architecture: amd64
CPU ID: AuthenticAMD-00a20f10-178bfbff
SUPERCOP version: 20211108
Operation: crypto_kem
Primitive: nhcompact768cca

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
124270	166934 0 0	190776 868 1720	`T:avx2`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20220207	20211108
124534	170586 0 0	194760 868 1720	`T:avx2`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20220207	20211108
128758	205632 0 0	225640 844 1752	`T:avx2`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220207	20211108
151854	119121 0 0	136822 860 1720	`T:avx2`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20220207	20211108
166463	119701 0 0	137992 844 1752	`T:avx2`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220207	20211108
173565	120604 0 0	138616 868 1720	`T:avx2`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20220207	20211108
197659	116932 0 0	133556 836 1720	`T:avx2`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220207	20211108
197892	117713 0 0	135464 844 1752	`T:avx2`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220207	20211108

Compiler output

Implementation: T:avx2
Security model: timingleaks
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

fips202x4.c: fips202x4.c:155:12: error: always_inline function '_mm256_xor_si256' requires target feature 'avx2', but would be inlined into function 'shake128x4' that is compiled without support for 'avx2'
fips202x4.c: s[i] = _mm256_xor_si256(s[i], s[i]);
fips202x4.c: ^
fips202x4.c: fips202x4.c:155:12: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
fips202x4.c: 2 errors generated.

Number of similar (compiler,implementation) pairs: 1, namely:

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