Implementation notes: amd64, oki, crypto_aead/aes128avalanchev1

Computer: oki
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20181123
Operation: crypto_aead
Primitive: aes128avalanchev1

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
179472084	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181127	20181123
179518920	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer`	20181127	20181123
194318118	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181127	20181123
194407880	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer`	20181127	20181123
196776658	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20181127	20181123
196779372	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181127	20181123
196833620	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer`	20181127	20181123
197894230	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer`	20181127	20181123
197936726	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181127	20181123
237638438	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer`	20181127	20181123
238076594	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer`	20181127	20181123
244085740	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer`	20181127	20181123
244248928	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181127	20181123
244379880	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer`	20181127	20181123
244800582	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer`	20181127	20181123
247841348	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181127	20181123
248232826	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer`	20181127	20181123
258589356	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181127	20181123
258708452	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20181127	20181123
258714332	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer`	20181127	20181123
266060984	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181127	20181123
266163662	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer`	20181127	20181123
272294764	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O3_-fomit-frame-pointer`	20181127	20181123
272374280	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer`	20181127	20181123
281887836	? ? ?	? ? ?	`ref`	`gcc_-m64_-O3_-fomit-frame-pointer`	20181127	20181123
281898622	? ? ?	? ? ?	`ref`	`gcc_-O3_-fomit-frame-pointer`	20181127	20181123
281955544	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181127	20181123
281966438	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O3_-fomit-frame-pointer`	20181127	20181123
282025636	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181127	20181123
282058680	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20181127	20181123
282938632	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer`	20181127	20181123
283993428	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O_-fomit-frame-pointer`	20181127	20181123
284243030	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20181127	20181123
284528360	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer`	20181127	20181123
284611502	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181127	20181123
284743666	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer`	20181127	20181123
284978030	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer`	20181127	20181123
285354632	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O_-fomit-frame-pointer`	20181127	20181123
285362412	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer`	20181127	20181123
285756060	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O_-fomit-frame-pointer`	20181127	20181123
286519494	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer`	20181127	20181123
288274762	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O_-fomit-frame-pointer`	20181127	20181123
290108516	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181127	20181123
290133020	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181127	20181123
290250846	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer`	20181127	20181123
290494060	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer`	20181127	20181123
290519562	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20181127	20181123
290686036	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181127	20181123
291444208	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181127	20181123
291445082	? ? ?	? ? ?	`ref`	`gcc_-m64_-O_-fomit-frame-pointer`	20181127	20181123
292433756	? ? ?	? ? ?	`ref`	`gcc_-O_-fomit-frame-pointer`	20181127	20181123
297446738	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20181127	20181123
304630218	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181127	20181123
304923608	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer`	20181127	20181123
304931204	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O3_-fomit-frame-pointer`	20181127	20181123
304969470	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer`	20181127	20181123
305176414	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer`	20181127	20181123
306033772	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181127	20181123
306060704	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O2_-fomit-frame-pointer`	20181127	20181123
306424310	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O2_-fomit-frame-pointer`	20181127	20181123
306463972	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer`	20181127	20181123
306496564	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer`	20181127	20181123
311183228	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O_-fomit-frame-pointer`	20181127	20181123
311197922	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O_-fomit-frame-pointer`	20181127	20181123
318518940	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer`	20181127	20181123
321503190	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181127	20181123
321520576	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer`	20181127	20181123
329512336	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments`	20181127	20181123
329550408	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments`	20181127	20181123
329702582	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-march=x86-64_-mcpu=core-avx2_-mavx2_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181127	20181123
329822672	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181127	20181123
330972068	? ? ?	? ? ?	`ref`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20181127	20181123
334133586	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O2_-fomit-frame-pointer`	20181127	20181123
334407574	? ? ?	? ? ?	`ref`	`gcc_-O2_-fomit-frame-pointer`	20181127	20181123
334704800	? ? ?	? ? ?	`ref`	`gcc_-m64_-O2_-fomit-frame-pointer`	20181127	20181123
334763212	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer`	20181127	20181123
334882520	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181127	20181123
336760388	? ? ?	? ? ?	`ref`	`clang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181127	20181123
337443326	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181127	20181123
339833568	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181127	20181123
342492384	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer`	20181127	20181123
342591392	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O3_-fomit-frame-pointer`	20181127	20181123
342633372	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer`	20181127	20181123
342847010	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O3_-fomit-frame-pointer`	20181127	20181123
342935790	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181127	20181123
343408568	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O2_-fomit-frame-pointer`	20181127	20181123
343446574	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181127	20181123
355872034	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer`	20181127	20181123
356256102	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer`	20181127	20181123
366451896	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O2_-fomit-frame-pointer`	20181127	20181123
366660584	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181127	20181123
389393354	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181127	20181123
390619766	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181127	20181123
393133610	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-Os_-fomit-frame-pointer`	20181127	20181123
395323808	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181127	20181123
402555286	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer`	20181127	20181123
405148824	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer`	20181127	20181123
410210386	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20181127	20181123
410295888	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer`	20181127	20181123
410593574	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181127	20181123
410695764	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-Os_-fomit-frame-pointer`	20181127	20181123
410723200	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181127	20181123
410755198	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181127	20181123
410755698	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer`	20181127	20181123
410896462	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-Os_-fomit-frame-pointer`	20181127	20181123
410933196	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer`	20181127	20181123
411024534	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-Os_-fomit-frame-pointer`	20181127	20181123
411828514	? ? ?	? ? ?	`ref`	`gcc_-m64_-Os_-fomit-frame-pointer`	20181127	20181123
412834470	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-Os_-fomit-frame-pointer`	20181127	20181123
413371554	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181127	20181123
413561360	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer`	20181127	20181123
414018936	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181127	20181123
414269772	? ? ?	? ? ?	`ref`	`gcc_-Os_-fomit-frame-pointer`	20181127	20181123
414472872	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer`	20181127	20181123
415800366	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20181127	20181123
454937066	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer`	20181127	20181123
1182815192	? ? ?	? ? ?	`ref`	`cc`	20181127	20181123
1252880744	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops`	20181127	20181123
1254300448	? ? ?	? ? ?	`ref`	`gcc`	20181127	20181123

Compiler output

Implementation: ref
Security model: unknown
Compiler: clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments

try.c: fatal error: error in backend: Cannot select: 0x11a2e80: v4i64 = X86ISD::VTRUNC 0x11a2cb0
try.c: 0x11a2cb0: v16i32 = vselect 0x11b5280, 0x114f1c0, 0x11a2b80
try.c: 0x11b5280: v4i1 = X86ISD::PCMPGTM 0x119e8e0, 0x1136e10
try.c: 0x119e8e0: v4i64 = X86ISD::VBROADCAST 0x11371a0
try.c: 0x11371a0: i64,ch = load<LD8[%uglygep72]> 0x1098dd0, 0x112ea10, undef:i64
try.c: 0x112ea10: i64 = add 0x119f7c0, 0x1147d20
try.c: 0x119f7c0: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0x11956c0: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0x1147d20: i64 = shl 0x1194e70, Constant:i8<3>
try.c: 0x1194e70: i64,ch = CopyFromReg 0x1098dd0, Register:i64 %vreg50
try.c: 0x119fc80: i64 = Register %vreg50
try.c: 0x111bdf0: i8 = Constant<3>
try.c: 0x119cf50: i64 = undef
try.c: 0x1136e10: v4i64,ch = CopyFromReg 0x1098dd0, Register:v4i64 %vreg13
try.c: 0x1143260: v4i64 = Register %vreg13
try.c: 0x114f1c0: v16i32 = X86ISD::VBROADCAST 0x11950d0
try.c: 0x11950d0: i32,ch = load<LD4[ConstantPool]> 0x1098dd0, 0x11a27f0, undef:i64
try.c: 0x11a27f0: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0x1138bd0: i64 = TargetConstantPool<i32 1> 0
try.c: 0x119cf50: i64 = undef
try.c: 0x11a2b80: v16i32 = BUILD_VECTOR Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>
try.c: 0x11a2a50: i32 = Constant<0>
try.c: 0x11a2a50: i32 = Constant<0>
try.c: 0x11a2a50: i32 = Constant<0>
try.c: 0x11a2a50: i32 = Constant<0>
try.c: ...

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

Compiler	Implementations
clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments	ref

Compiler output

Implementation: ref
Security model: unknown
Compiler: clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments

try.c: fatal error: error in backend: Cannot select: 0x1e998b0: v4i64 = X86ISD::VTRUNC 0x1e996e0
try.c: 0x1e996e0: v16i32 = vselect 0x1ea0240, 0x1e2b360, 0x1e995b0
try.c: 0x1ea0240: v4i1 = X86ISD::PCMPGTM 0x1e82190, 0x1e18110
try.c: 0x1e82190: v4i64 = X86ISD::VBROADCAST 0x1e184a0
try.c: 0x1e184a0: i64,ch = load<LD8[%uglygep72]> 0x1d7cdd0, 0x1e7a0c0, undef:i64
try.c: 0x1e7a0c0: i64 = add 0x1e83070, 0x1e03630
try.c: 0x1e83070: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0x1e802a0: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0x1e03630: i64 = shl 0x1e7fa50, Constant:i8<3>
try.c: 0x1e7fa50: i64,ch = CopyFromReg 0x1d7cdd0, Register:i64 %vreg50
try.c: 0x1e83530: i64 = Register %vreg50
try.c: 0x1e04c30: i8 = Constant<3>
try.c: 0x1e80800: i64 = undef
try.c: 0x1e18110: v4i64,ch = CopyFromReg 0x1d7cdd0, Register:v4i64 %vreg13
try.c: 0x1e1b5b0: v4i64 = Register %vreg13
try.c: 0x1e2b360: v16i32 = X86ISD::VBROADCAST 0x1e7fcb0
try.c: 0x1e7fcb0: i32,ch = load<LD4[ConstantPool]> 0x1d7cdd0, 0x1e99220, undef:i64
try.c: 0x1e99220: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0x1e2ca10: i64 = TargetConstantPool<i32 1> 0
try.c: 0x1e80800: i64 = undef
try.c: 0x1e995b0: v16i32 = BUILD_VECTOR Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>
try.c: 0x1e99480: i32 = Constant<0>
try.c: 0x1e99480: i32 = Constant<0>
try.c: 0x1e99480: i32 = Constant<0>
try.c: 0x1e99480: i32 = Constant<0>
try.c: ...

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

Compiler	Implementations
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	ref