Implementation notes: amd64, panther, crypto_kem/ntruhps2048677

Computer: panther
Microarchitecture: amd64; Tiger Lake (806c1)
Architecture: amd64
CPU ID: GenuineIntel-000806c1-00-bfebfbff
SUPERCOP version: 20240716
Operation: crypto_kem
Primitive: ntruhps2048677

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
70258	145727 56065 0	210173 56940 1752	`avx2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
70725	136631 56065 0	201061 56940 1752	`avx2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
71957	125957 56065 0	190192 56892 1784	`avx2`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
78155	120903 56065 0	181339 56932 1752	`avx2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
90505	118594 56065 0	180904 56892 1784	`avx2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
98734	116549 56065 0	178179 56932 1752	`avx2`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
101005	118258 56065 0	179976 56892 1784	`avx2`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
109831	115257 56065 0	175992 56884 1752	`avx2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
924163	28232 0 0	92666 796 1784	`compact`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
949558	84889 0 0	148829 836 1752	`compact`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
951141	57949 0 0	121885 836 1752	`compact`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
1034756	34837 0 0	98493 836 1752	`compact`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
2613401	40967 0 0	105181 836 1752	`ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
2616160	29076 0 0	93261 836 1752	`ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
3534839	22367 0 0	86149 836 1752	`ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
3936408	10208 0 0	70427 828 1752	`ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
4266291	8969 0 0	69883 828 1752	`compact`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
4312018	14103 0 0	78346 796 1784	`ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
4346914	6836 0 0	69130 796 1784	`ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
4628422	4865 0 0	67210 796 1784	`compact`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
11090339	6054 0 0	66714 788 1752	`ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
11208078	6570 0 0	68256 788 1784	`ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
11335405	3781 0 0	64586 788 1752	`compact`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
11749415	4444 0 0	66280 788 1784	`compact`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
12126925	6870 0 0	68411 828 1752	`ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716
12486572	5760 0 0	67459 828 1752	`compact`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240722	20240716

Compiler output

poly_s3_inv.c: poly_s3_inv.c:360:11: error: always_inline function '_mm256_set_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F0[0] = _mm256_set_epi32(-1,-1,-1,-1,-1,-1,-1,-1);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:360:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:361:11: error: always_inline function '_mm256_set_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F0[1] = _mm256_set_epi32(-1,-1,-1,-1,-1,-1,-1,-1);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:361:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:362:11: error: always_inline function '_mm256_set_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F0[2] = _mm256_set_epi32(511,-1,511,-1,511,-1,1023,-1);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:362:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:363:11: error: always_inline function '_mm256_set1_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F1[0] = _mm256_set1_epi32(0);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:363:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:364:11: error: always_inline function '_mm256_set1_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F1[1] = _mm256_set1_epi32(0);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:364:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:365:11: error: always_inline function '_mm256_set1_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c:   F1[2] = _mm256_set1_epi32(0);
poly_s3_inv.c:           ^
poly_s3_inv.c: poly_s3_inv.c:365:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
poly_s3_inv.c: poly_s3_inv.c:367:11: error: always_inline function '_mm256_set1_epi32' requires target feature 'avx', but would be inlined into function '__poly_S3_inv' that is compiled without support for 'avx'
poly_s3_inv.c: ...

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

Implementation	Compiler
`avx2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Namespace violations

kem.o sample_fixed_type T

Number of similar (implementation,compiler) pairs: 9, namely:

Implementation	Compiler
`compact`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`compact`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`compact`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`compact`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x402690
   at 0x...: st32 (try-anything.c:47)
   by 0x...: core (try-anything.c:78)
   by 0x...: salsa20 (try-anything.c:89)
   by 0x...: canary (try-anything.c:148)
   by 0x...: output_prepare (try-anything.c:178)
   by 0x...: test (try.c:124)
   by 0x...: main (try-anything.c:345)

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`avx2`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x42F7DB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_avx2_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x427D9B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_avx2_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x4020EA
   at 0x...: core (try-anything.c:73)
   by 0x...: salsa20 (try-anything.c:89)
   by 0x...: canary (try-anything.c:148)
   by 0x...: output_prepare (try-anything.c:178)
   by 0x...: test (try.c:124)
   by 0x...: main (try-anything.c:345)

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`avx2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`compact`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x130B7B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_avx2_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x10A26A
   at 0x...: st32 (try-anything.c:47)
   by 0x...: core (try-anything.c:78)
   by 0x...: salsa20.part.0 (try-anything.c:89)
   by 0x...: salsa20 (try-anything.c:85)
   by 0x...: canary (try-anything.c:148)
   by 0x...: output_prepare (try-anything.c:178)
   by 0x...: test (try.c:124)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x1306FB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_avx2_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x12F72B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_avx2_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`avx2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x420CBB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x40CE8B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x414A1B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x1152AB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x10A27A
   at 0x...: st32 (try-anything.c:47)
   by 0x...: core (try-anything.c:78)
   by 0x...: salsa20.part.0 (try-anything.c:89)
   by 0x...: salsa20 (try-anything.c:85)
   by 0x...: canary (try-anything.c:148)
   by 0x...: output_prepare (try-anything.c:178)
   by 0x...: test (try.c:124)
   by 0x...: main (try-anything.c:345)

Number of similar (implementation,compiler) pairs: 2, namely:

Implementation	Compiler
`compact`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x114DDB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x1147DB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_compact_constbranchindex_keypair (kem.c:360)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`compact`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x415D6B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x40D1FB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x41155B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x11569B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x11523B
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

TIMECOP error (can be valgrind bug)

error 111

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x114CFB
   at 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex_ECRYPT_encrypt_bytes (u16mask.h:114)
   by 0x...: crypto_stream_chacha20_dolbeau_amd64_avx2_constbranchindex (include/estream-convert-api.h:83)
   by 0x...: crypto_rng_chacha20_ref_constbranchindex (rng.c:23)
   by 0x...: randombytes_internal (knownrandombytes.c:31)
   by 0x...: randombytes (knownrandombytes.c:56)
   by 0x...: crypto_kem_ntruhps2048677_ref_constbranchindex_keypair (kem.c:15)
   by 0x...: test (try.c:126)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`