Implementation notes: amd64, speed2supercop, crypto_aead/isapxv20

Computer: speed2supercop
Microarchitecture: amd64; Haswell+AES (306c3)
Architecture: amd64
CPU ID: GenuineIntel-000306c3-1fc9cbf5
SUPERCOP version: 20240808
Operation: crypto_aead
Primitive: isapxv20

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1821228	8849 0 0	22784 808 856	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
1942620	9396 0 0	24520 808 872	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
1946464	8724 0 0	23656 808 872	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
2844172	7969 0 0	21549 760 928	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
8227864	6595 0 0	18328 808 856	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
8831232	6524 0 0	18783 792 920	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
9627784	5918 0 0	18285 760 928	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
14257568	5812 0 0	18036 752 928	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
20989344	4894 0 0	16024 736 896	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625

Compiler output

isap.c: isap.c: In function 'isap_rk':
isap.c: isap.c:25:9: warning: 'state' may be used uninitialized [-Wmaybe-uninitialized]
isap.c:    25 |         Permutation_Initialize(state);
isap.c:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
isap.c: In file included from isap.c:5:
isap.c: permutation.h:4:6: note: by argument 1 of type 'const void *' to 'Permutation_Initialize' declared here
isap.c:     4 | void Permutation_Initialize(
isap.c:       |      ^~~~~~~~~~~~~~~~~~~~~~
isap.c: isap.c:24:23: note: 'state' declared here
isap.c:    24 |         unsigned char state[ISAP_STATE_SZ];
isap.c:       |                       ^~~~~
isap.c: isap.c: In function 'isap_mac':
isap.c: isap.c:59:9: warning: 'state' may be used uninitialized [-Wmaybe-uninitialized]
isap.c:    59 |         Permutation_Initialize(state);
isap.c:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
isap.c: permutation.h:4:6: note: by argument 1 of type 'const void *' to 'Permutation_Initialize' declared here
isap.c:     4 | void Permutation_Initialize(
isap.c:       |      ^~~~~~~~~~~~~~~~~~~~~~
isap.c: isap.c:58:23: note: 'state' declared here
isap.c:    58 |         unsigned char state[ISAP_STATE_SZ];
isap.c:       |                       ^~~~~

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

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

Compiler output

isap.c: isap.c: In function 'isap_rk.constprop':
isap.c: isap.c:25:9: warning: 'state' may be used uninitialized [-Wmaybe-uninitialized]
isap.c:    25 |         Permutation_Initialize(state);
isap.c:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
isap.c: In file included from isap.c:5:
isap.c: permutation.h:4:6: note: by argument 1 of type 'const void *' to 'Permutation_Initialize' declared here
isap.c:     4 | void Permutation_Initialize(
isap.c:       |      ^~~~~~~~~~~~~~~~~~~~~~
isap.c: isap.c:24:23: note: 'state' declared here
isap.c:    24 |         unsigned char state[ISAP_STATE_SZ];
isap.c:       |                       ^~~~~
isap.c: isap.c: In function 'isap_rk':
isap.c: isap.c:25:9: warning: 'state' may be used uninitialized [-Wmaybe-uninitialized]
isap.c:    25 |         Permutation_Initialize(state);
isap.c:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
isap.c: permutation.h:4:6: note: by argument 1 of type 'const void *' to 'Permutation_Initialize' declared here
isap.c:     4 | void Permutation_Initialize(
isap.c:       |      ^~~~~~~~~~~~~~~~~~~~~~
isap.c: isap.c:24:23: note: 'state' declared here
isap.c:    24 |         unsigned char state[ISAP_STATE_SZ];
isap.c:       |                       ^~~~~
isap.c: isap.c: In function 'isap_mac':
isap.c: isap.c:59:9: warning: 'state' may be used uninitialized [-Wmaybe-uninitialized]
isap.c:    59 |         Permutation_Initialize(state);
isap.c:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
isap.c: ...

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

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`