Implementation notes: amd64, oki, crypto_aead/led80n6t4silcv2

Computer: oki
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20181123
Operation: crypto_aead
Primitive: led80n6t4silcv2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
37493806	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
37497900	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
37859994	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
37967956	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
38040288	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O3_-fomit-frame-pointer`	20181129	20181123
38052580	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer`	20181129	20181123
38079382	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer`	20181129	20181123
38285794	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20181129	20181123
38286258	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181129	20181123
38298728	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer`	20181129	20181123
38348196	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer`	20181129	20181123
38417114	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer`	20181129	20181123
38420468	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer`	20181129	20181123
38621210	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
38629182	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
38662598	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181129	20181123
38663218	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20181129	20181123
38719404	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181129	20181123
38723602	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O3_-fomit-frame-pointer`	20181129	20181123
38729410	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer`	20181129	20181123
38832396	? ? ?	? ? ?	`ref`	`gcc_-m64_-O3_-fomit-frame-pointer`	20181129	20181123
38839218	? ? ?	? ? ?	`ref`	`gcc_-O3_-fomit-frame-pointer`	20181129	20181123
39163230	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20181129	20181123
39177832	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer`	20181129	20181123
53997906	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20181129	20181123
53998370	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer`	20181129	20181123
54049138	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181129	20181123
54429664	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
54443446	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
67619942	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer`	20181129	20181123
68007870	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20181129	20181123
68051870	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer`	20181129	20181123
76988636	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20181129	20181123
76993980	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer`	20181129	20181123
76997542	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer`	20181129	20181123
77843132	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
77913350	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
77969470	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer`	20181129	20181123
78389186	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer`	20181129	20181123
79075344	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer`	20181129	20181123
79093378	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer`	20181129	20181123
79130810	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O2_-fomit-frame-pointer`	20181129	20181123
79246138	? ? ?	? ? ?	`ref`	`gcc_-m64_-O2_-fomit-frame-pointer`	20181129	20181123
79288158	? ? ?	? ? ?	`ref`	`gcc_-O2_-fomit-frame-pointer`	20181129	20181123
79322916	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181129	20181123
79358180	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O2_-fomit-frame-pointer`	20181129	20181123
87067750	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O_-fomit-frame-pointer`	20181129	20181123
87067758	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer`	20181129	20181123
87108536	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer`	20181129	20181123
87184974	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O_-fomit-frame-pointer`	20181129	20181123
87202528	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer`	20181129	20181123
87202956	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer`	20181129	20181123
87310796	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
87367904	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181129	20181123
87380744	? ? ?	? ? ?	`ref`	`gcc_-m64_-O_-fomit-frame-pointer`	20181129	20181123
87436484	? ? ?	? ? ?	`ref`	`gcc_-O_-fomit-frame-pointer`	20181129	20181123
87731554	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
116503152	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
117251866	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
117391308	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
118204142	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
119701166	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
119957186	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
120012488	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
120138358	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
120733804	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
121083850	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
121124264	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
122105426	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
147566294	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
147681346	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
148035340	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
148059900	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
230125242	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
230150072	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
230474298	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
230663568	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-march=x86-64_-mcpu=core-avx2_-mavx2_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
234007846	? ? ?	? ? ?	`ref`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
234019162	? ? ?	? ? ?	`ref`	`clang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
234068268	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
234089864	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
265749236	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
266416262	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
269813540	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer`	20181129	20181123
272250202	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20181129	20181123
272996518	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
274602756	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
275959988	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer`	20181129	20181123
277861558	? ? ?	? ? ?	`ref`	`gcc_-m64_-Os_-fomit-frame-pointer`	20181129	20181123
279136158	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-Os_-fomit-frame-pointer`	20181129	20181123
279137272	? ? ?	? ? ?	`ref`	`gcc_-Os_-fomit-frame-pointer`	20181129	20181123
279239778	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181129	20181123
288635472	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer`	20181129	20181123
288842598	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181129	20181123
289380400	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer`	20181129	20181123
289737324	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer`	20181129	20181123
289862010	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
289894514	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer`	20181129	20181123
289933854	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
290149610	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
290349634	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
290490934	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
290809748	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
290891526	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20181129	20181123
290962768	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer`	20181129	20181123
291038162	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
291098404	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
291551700	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-Os_-fomit-frame-pointer`	20181129	20181123
299129778	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
300413420	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
300845032	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
301508916	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
302043750	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
302455522	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
306550414	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
310642888	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
565629296	? ? ?	? ? ?	`ref`	`cc`	20181129	20181123
569693660	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops`	20181129	20181123
571507362	? ? ?	? ? ?	`ref`	`gcc`	20181129	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: 0x1f510f0: v4i64 = X86ISD::VTRUNC 0x1f50f20
try.c: 0x1f50f20: v16i32 = vselect 0x1f57b80, 0x1ed0a00, 0x1f50df0
try.c: 0x1f57b80: v4i1 = X86ISD::PCMPGTM 0x1f3c600, 0x1ed17b0
try.c: 0x1f3c600: v4i64 = X86ISD::VBROADCAST 0x1ed1b40
try.c: 0x1ed1b40: i64,ch = load<LD8[%uglygep72]> 0x1e35db0, 0x1f1b5c0, undef:i64
try.c: 0x1f1b5c0: i64 = add 0x1f3d4e0, 0x1ecb1e0
try.c: 0x1f3d4e0: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0x1ed6fa0: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0x1ecb1e0: i64 = shl 0x1ed6750, Constant:i8<3>
try.c: 0x1ed6750: i64,ch = CopyFromReg 0x1e35db0, Register:i64 %vreg50
try.c: 0x1f3d9a0: i64 = Register %vreg50
try.c: 0x1edb2c0: i8 = Constant<3>
try.c: 0x1f3ac70: i64 = undef
try.c: 0x1ed17b0: v4i64,ch = CopyFromReg 0x1e35db0, Register:v4i64 %vreg13
try.c: 0x1ef9f30: v4i64 = Register %vreg13
try.c: 0x1ed0a00: v16i32 = X86ISD::VBROADCAST 0x1ed69b0
try.c: 0x1ed69b0: i32,ch = load<LD4[ConstantPool]> 0x1e35db0, 0x1f50a60, undef:i64
try.c: 0x1f50a60: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0x1ee1730: i64 = TargetConstantPool<i32 1> 0
try.c: 0x1f3ac70: i64 = undef
try.c: 0x1f50df0: 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: 0x1f50cc0: i32 = Constant<0>
try.c: 0x1f50cc0: i32 = Constant<0>
try.c: 0x1f50cc0: i32 = Constant<0>
try.c: 0x1f50cc0: 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: 0xea1030: v4i64 = X86ISD::VTRUNC 0xea0e60
try.c: 0xea0e60: v16i32 = vselect 0xe9daa0, 0xe3ab70, 0xea0d30
try.c: 0xe9daa0: v4i1 = X86ISD::PCMPGTM 0xe89910, 0xe22480
try.c: 0xe89910: v4i64 = X86ISD::VBROADCAST 0xe22810
try.c: 0xe22810: i64,ch = load<LD8[%uglygep72]> 0xd83db0, 0xe40490, undef:i64
try.c: 0xe40490: i64 = add 0xe8a7f0, 0xe28d50
try.c: 0xe8a7f0: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0xe72ef0: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0xe28d50: i64 = shl 0xe726a0, Constant:i8<3>
try.c: 0xe726a0: i64,ch = CopyFromReg 0xd83db0, Register:i64 %vreg50
try.c: 0xe8acb0: i64 = Register %vreg50
try.c: 0xe2a350: i8 = Constant<3>
try.c: 0xe87f80: i64 = undef
try.c: 0xe22480: v4i64,ch = CopyFromReg 0xd83db0, Register:v4i64 %vreg13
try.c: 0xe35380: v4i64 = Register %vreg13
try.c: 0xe3ab70: v16i32 = X86ISD::VBROADCAST 0xe72900
try.c: 0xe72900: i32,ch = load<LD4[ConstantPool]> 0xd83db0, 0xea09a0, undef:i64
try.c: 0xea09a0: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0xe24240: i64 = TargetConstantPool<i32 1> 0
try.c: 0xe87f80: i64 = undef
try.c: 0xea0d30: 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: 0xea0c00: i32 = Constant<0>
try.c: 0xea0c00: i32 = Constant<0>
try.c: 0xea0c00: i32 = Constant<0>
try.c: 0xea0c00: 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