Implementation notes: amd64, panther, crypto_hash/floppsy

Computer: panther
Microarchitecture: amd64; Tiger Lake (806c1)
Architecture: amd64
CPU ID: GenuineIntel-000806c1-00-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_hash
Primitive: floppsy

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
236	117 0 0	13506 860 920	`T:ref`	`clang++_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
237	117 0 0	13490 860 920	`T:ref`	`clang++_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
1578	74 0 0	10320 852 888	`T:ref`	`clang++_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
1584	101 0 0	10528 852 888	`T:ref`	`clang++_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
32281	427 0 0	13448 780 984	`T:ref`	`g++_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
32283	362 0 0	11272 780 984	`T:ref`	`g++_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
32290	393 0 0	10871 772 984	`T:ref`	`g++_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
42359	354 0 0	9883 756 952	`T:ref`	`g++_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625

Compiler output

api.cpp: api.cpp: In function 'void round(const uint8_t*, long long unsigned int, double*)':
api.cpp: api.cpp:53:22: warning: comparison of integer expressions of different signedness: 'long int' and 'long long unsigned int' [-Wsign-compare]
api.cpp:    53 |   for( long i = 0; i < len; i++ ) {
api.cpp:       |                    ~~^~~~~
api.cpp: api.cpp: In function 'int crypto_hash_floppsy_ref_timingleaks(unsigned char*, const unsigned char*, long long unsigned int)':
api.cpp: api.cpp:68:12: warning: 'buf' is used uninitialized in this function [-Wuninitialized]
api.cpp:    68 |   state[0] += init != 0 ? pow(init + 1.0/init, 1.0/3) : 3.0;
api.cpp:       |   ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
api.cpp: api.cpp:69:12: warning: '*((void*)& buf +8)' is used uninitialized in this function [-Wuninitialized]
api.cpp:    69 |   state[1] += init != 0 ? pow(init + 1.0/init, 1.0/7) : 1.0/7;
api.cpp:       |   ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

Implementation	Compiler
`T:ref`	`g++ -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`g++ -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`g++ -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`g++ -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`