Implementation notes: amd64, gcc14, crypto_stream/rabbit

Computer: gcc14
Architecture: amd64
CPU ID: GenuineIntel-00010676-bfebfbff
SUPERCOP version: 20220506
Operation: crypto_stream
Primitive: rabbit
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
79184477 0 117915 820 968T:e/opt/1/2clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79554509 0 118755 820 968T:e/opt/1/3clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79574477 0 118851 820 968T:e/opt/1/2clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79654477 0 117915 820 968T:e/opt/1/2clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79694144 0 417861 836 1032T:e/opt/2/3gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
79724477 0 118851 820 968T:e/opt/1/3clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79724477 0 117915 820 968T:e/opt/1/4clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79744477 0 117915 820 968T:e/opt/1/3clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79754477 0 117915 820 968T:e/opt/1/4clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79824477 0 118851 820 968T:e/opt/1/4clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79824396 0 118643 820 968T:e/opt/2/2clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
79874192 0 417909 836 1032T:e/opt/1/2gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
79914396 0 118643 820 968T:e/opt/2/3clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80024192 0 417909 836 1032T:e/opt/1/4gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
80084412 0 117851 820 968T:e/opt/2/3clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80154509 0 118755 820 968T:e/opt/1/4clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80184412 0 118787 820 968T:e/opt/2/3clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80224509 0 118755 820 968T:e/opt/1/2clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80314144 0 417861 836 1032T:e/opt/2/2gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
80684192 0 417909 836 1032T:e/opt/1/3gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
80724412 0 118787 820 968T:e/opt/2/2clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
80974412 0 117851 820 968T:e/opt/2/3clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
81174412 0 117851 820 968T:e/opt/2/2clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
81623921 0 116221 812 968T:e/opt/2/3clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
81863921 0 116221 812 968T:e/opt/2/2clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
81924412 0 117851 820 968T:e/opt/2/2clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
81993959 0 116253 812 968T:e/opt/1/2clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
82143959 0 116253 812 968T:e/opt/1/4clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
82244339 0 417693 836 1032T:e/opt/2/2gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
82303959 0 116253 812 968T:e/opt/1/3clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
82934339 0 417693 836 1032T:e/opt/2/3gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
83533937 0 416161 820 1000T:e/opt/1/2gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
83753903 0 416129 820 1000T:e/opt/2/2gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
83923937 0 416161 820 1000T:e/opt/1/3gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
83944477 0 117915 820 968T:e/opt/1/3clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
84063903 0 416129 820 1000T:e/opt/2/3gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
84073937 0 416161 820 1000T:e/opt/1/4gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
84914398 0 417741 836 1032T:e/opt/1/3gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
84964398 0 417741 836 1032T:e/opt/1/4gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
85144398 0 417741 836 1032T:e/opt/1/2gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
105347232 0 422918 844 1032T:e/refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
108015971 0 421670 844 1032T:e/opt/2/2gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
108265971 0 421670 844 1032T:e/opt/2/3gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
108446049 0 421750 844 1032T:e/opt/1/4gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
108696049 0 421750 844 1032T:e/opt/1/3gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
109626049 0 421750 844 1032T:e/opt/1/2gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
113915041 0 418389 836 1032T:e/opt/2/1gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
113955132 0 418485 836 1032T:e/opt/1/1gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
114424992 0 418709 836 1032T:e/opt/1/1gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
114574896 0 418613 836 1032T:e/opt/2/1gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
117504595 0 416817 820 1000T:e/opt/1/1gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
117835141 0 119387 820 968T:e/opt/1/1clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
118034573 0 416801 820 1000T:e/opt/2/1gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
121345060 0 119307 820 968T:e/opt/2/1clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
126155236 0 118659 820 968T:e/opt/2/1clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
126535173 0 119531 820 968T:e/opt/1/1clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
126555173 0 118595 820 968T:e/opt/1/1clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
127155236 0 118659 820 968T:e/opt/2/1clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
127175173 0 118595 820 968T:e/opt/1/1clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
127345236 0 119595 820 968T:e/opt/2/1clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
127463533 0 117907 820 968T:e/refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
127553533 0 116971 820 968T:e/refclang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
130254650 0 116933 812 968T:e/opt/1/1clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
130853533 0 116971 820 968T:e/refclang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
131724724 0 116997 812 968T:e/opt/2/1clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
144483725 0 117987 820 968T:e/refclang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
152567602 0 423302 844 1032T:e/opt/2/1gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
152767648 0 423350 844 1032T:e/opt/1/1gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
167153132 0 416845 836 1032T:e/refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
168142665 0 414897 820 1000T:e/refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114
169362903 0 115197 812 968T:e/refclang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE2021011420210114
170642885 0 416229 836 1032T:e/refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2021011420210114

Compiler output

Implementation: T:e/opt/2/4
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
rabbit.c: In file included from rabbit.c:1:
rabbit.c: ./e/rabbit.c:314:4: warning: implicit declaration of function 'RABBIT_G_AND_LATE_COUNTER' is invalid in C99 [-Wimplicit-function-declaration]
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ./e/rabbit.c:314:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:315:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(1, 0x34D34D34)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:316:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(2, 0x4D34D34D)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:318:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(3, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:320:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(4, 0x34D34D34)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:322:44: error: expected ';' after expression
rabbit.c: ...

Number of similar (compiler,implementation) pairs: 5, namely:
CompilerImplementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/4
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/4
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/4
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/4
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/4

Compiler output

Implementation: T:e/opt/2/4
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
rabbit.c: In file included from rabbit.c:1:0:
rabbit.c: e/rabbit.c: In function 'RABBIT_next_state':
rabbit.c: e/rabbit.c:314:4: warning: implicit declaration of function 'RABBIT_G_AND_LATE_COUNTER' [-Wimplicit-function-declaration]
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:315:4: error: expected ';' before 'RABBIT_G_AND_LATE_COUNTER'
rabbit.c: RABBIT_G_AND_LATE_COUNTER(1, 0x34D34D34)
rabbit.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:93:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j, 8) + g##k);
rabbit.c: ^
rabbit.c: e/rabbit.c:319:4: note: in expansion of macro 'RABBIT_GEN_X_ODD'
rabbit.c: RABBIT_GEN_X_ODD(3, 2, 1)
rabbit.c: ^~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:90:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j,16) + ROTL32(g##k, 16));
rabbit.c: ^
rabbit.c: e/rabbit.c:321:4: note: in expansion of macro 'RABBIT_GEN_X_EVEN'
rabbit.c: RABBIT_GEN_X_EVEN(4, 3, 2)
rabbit.c: ^~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:93:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j, 8) + g##k);
rabbit.c: ^
rabbit.c: e/rabbit.c:323:4: note: in expansion of macro 'RABBIT_GEN_X_ODD'
rabbit.c: RABBIT_GEN_X_ODD(5, 4, 3)
rabbit.c: ...

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/4
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/4
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/4
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/4

Compiler output

Implementation: T:e/opt/2/5
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
rabbit.c: In file included from rabbit.c:1:
rabbit.c: ./e/rabbit.c:37:2: error: this variant does not compile on this platform
rabbit.c: #error this variant does not compile on this platform
rabbit.c: ^
rabbit.c: ./e/rabbit.c:314:4: warning: implicit declaration of function 'RABBIT_G_AND_LATE_COUNTER' is invalid in C99 [-Wimplicit-function-declaration]
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ./e/rabbit.c:314:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:315:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(1, 0x34D34D34)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:316:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(2, 0x4D34D34D)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:318:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(3, 0xD34D34D3)
rabbit.c: ^
rabbit.c: ;
rabbit.c: ./e/rabbit.c:320:44: error: expected ';' after expression
rabbit.c: RABBIT_G_AND_LATE_COUNTER(4, 0x34D34D34)
rabbit.c: ...

Number of similar (compiler,implementation) pairs: 5, namely:
CompilerImplementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/5
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/5
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/5
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/5
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE T:e/opt/2/5

Compiler output

Implementation: T:e/opt/2/5
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
rabbit.c: In file included from rabbit.c:1:0:
rabbit.c: e/rabbit.c:37:2: error: #error this variant does not compile on this platform
rabbit.c: #error this variant does not compile on this platform
rabbit.c: ^~~~~
rabbit.c: e/rabbit.c: In function 'RABBIT_next_state':
rabbit.c: e/rabbit.c:314:4: warning: implicit declaration of function 'RABBIT_G_AND_LATE_COUNTER' [-Wimplicit-function-declaration]
rabbit.c: RABBIT_G_AND_LATE_COUNTER(0, 0xD34D34D3)
rabbit.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:315:4: error: expected ';' before 'RABBIT_G_AND_LATE_COUNTER'
rabbit.c: RABBIT_G_AND_LATE_COUNTER(1, 0x34D34D34)
rabbit.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:93:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j, 8) + g##k);
rabbit.c: ^
rabbit.c: e/rabbit.c:319:4: note: in expansion of macro 'RABBIT_GEN_X_ODD'
rabbit.c: RABBIT_GEN_X_ODD(3, 2, 1)
rabbit.c: ^~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:90:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j,16) + ROTL32(g##k, 16));
rabbit.c: ^
rabbit.c: e/rabbit.c:321:4: note: in expansion of macro 'RABBIT_GEN_X_EVEN'
rabbit.c: RABBIT_GEN_X_EVEN(4, 3, 2)
rabbit.c: ^~~~~~~~~~~~~~~~~
rabbit.c: e/rabbit.c:93:7: error: expected ';' before 'p_instance'
rabbit.c: p_instance->x##i = U32V(g##i + ROTL32(g##j, 8) + g##k);
rabbit.c: ...

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/5
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/5
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/5
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:e/opt/2/5