Implementation notes: amd64, icelake, crypto_sign/tts6440

Computer: icelake
Architecture: amd64
CPU ID: GenuineIntel-000706e5-bfebfbff
SUPERCOP version: 20200826
Operation: crypto_sign
Primitive: tts6440

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
48217	39413 0 0	69632 4096 0	`T:ref`	`clang++_-march=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200830	20200826
48581	39741 0 0	69632 4096 0	`T:ref`	`clang++_-march=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200830	20200826
73036	18931 0 0	45056 4096 0	`T:ref`	`clang++_-march=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200830	20200826
96580	16583 0 0	45056 4096 0	`T:ref`	`opt-local-bin-g++_-march=icelake-client_-mtune=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200830	20200826

Test failure

Implementation: T:ref
Security model: timingleaks
Compiler: opt-local-bin-g++ -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

error 111
crypto_sign_open returns nonzero

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

Compiler	Implementations
opt-local-bin-g++ -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref
opt-local-bin-g++ -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref

Compiler output

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

measure.cpp: ld: warning: could not create compact unwind for _crypto_stream_aes256ctr_dolbeau_aesenc_int_constbranchindex_xor: register 3 saved somewhere other than in frame

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

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