Implementation notes: amd64, icelake, crypto_stream/lexv2

Computer: icelake
Architecture: amd64
CPU ID: GenuineIntel-000706e5-bfebfbff
SUPERCOP version: 20200826
Operation: crypto_stream
Primitive: lexv2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
8047	14272 4 0	28672 4096 0	`T:e/v2/ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
8050	17266 4 0	32768 4096 0	`T:e/v2/ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
8240	15222 4 0	28672 4096 0	`T:e/v2/ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
8700	15723 1 0	32768 4096 0	`T:e/v2/ref`	`clang_-march=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
8752	16563 1 0	32768 4096 0	`T:e/v2/ref`	`clang_-march=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
9069	15021 1 0	28672 4096 0	`T:e/v2/ref`	`clang_-march=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826

Compiler output

Implementation: T:e/v2/ref
Security model: timingleaks
Compiler: clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:685:9: warning: array index 10 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c: ctx->ks[10] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c: ^ ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c: u32 ks[NUMWORDS]; /* Keystream words collected from leaks */
lex.c: ^
lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:692:6: warning: array index 11 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c: ctx->ks[11] = ((s0 & 0xFF00FF)<<8) ^ (s2 & 0xFF00FF); /* Leak for even rounds */
lex.c: ^ ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c: u32 ks[NUMWORDS]; /* Keystream words collected from leaks */
lex.c: ^
lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:698:13: warning: array index 12 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c: ctx->ks[12] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c: ^ ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c: u32 ks[NUMWORDS]; /* Keystream words collected from leaks */
lex.c: ^
lex.c: 3 warnings generated.

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

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/ref
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/ref
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/ref

Compiler output

Implementation: T:e/v2/schwabe/amd64-1
Security model: timingleaks
Compiler: clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

table.s: table.s:4:17: error: unexpected token in '.section' directive
table.s: .section .rodata
table.s: ^

Number of similar (compiler,implementation) pairs: 6, namely:

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-1
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-1
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-1
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-1
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-1
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-1

Compiler output

Implementation: T:e/v2/schwabe/amd64-2
Security model: timingleaks
Compiler: clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

lex.S: lex.S:8051:17: error: unexpected token in '.section' directive
lex.S: .section .rodata
lex.S: ^

Number of similar (compiler,implementation) pairs: 6, namely:

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-2
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-2
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v2/schwabe/amd64-2
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-2
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-2
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v2/schwabe/amd64-2