Implementation notes: amd64, oki, crypto_aead/joltikeq12864v1

Computer: oki
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20181123
Operation: crypto_aead
Primitive: joltikeq12864v1

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
9614026	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
9621316	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
9621534	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20181129	20181123
9629272	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer`	20181129	20181123
9636940	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181129	20181123
9660484	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer`	20181129	20181123
9669230	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
9672672	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
9689234	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
9699384	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
9717956	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
9743362	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer`	20181129	20181123
9745082	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20181129	20181123
9749482	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer`	20181129	20181123
9749522	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20181129	20181123
9751978	? ? ?	? ? ?	`ref`	`gcc_-m64_-O3_-fomit-frame-pointer`	20181129	20181123
9754880	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer`	20181129	20181123
9758722	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer`	20181129	20181123
9759524	? ? ?	? ? ?	`ref`	`gcc_-O3_-fomit-frame-pointer`	20181129	20181123
9759962	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
9760136	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer`	20181129	20181123
9767098	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer`	20181129	20181123
9806814	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
9816052	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O3_-fomit-frame-pointer`	20181129	20181123
9822520	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O3_-fomit-frame-pointer`	20181129	20181123
9826948	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer`	20181129	20181123
9831538	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O3_-fomit-frame-pointer`	20181129	20181123
12247300	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
12260004	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-march=x86-64_-mcpu=core-avx2_-mavx2_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
13848720	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
13850398	? ? ?	? ? ?	`ref`	`clang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
14044508	? ? ?	? ? ?	`ref`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20181129	20181123
14063954	? ? ?	? ? ?	`ref`	`clang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
14064806	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
14072926	? ? ?	? ? ?	`ref`	`clang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments`	20181129	20181123
16367098	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
16370602	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
16466856	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
16472364	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
16699220	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
16704156	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
16712248	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181129	20181123
16713966	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20181129	20181123
16717338	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer`	20181129	20181123
19057216	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
19059362	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
19113098	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181129	20181123
19114500	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
19115518	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
19124652	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20181129	20181123
19139614	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer`	20181129	20181123
19673374	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer`	20181129	20181123
19678648	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20181129	20181123
19694376	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer`	20181129	20181123
19829804	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
19835828	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
21095792	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20181129	20181123
21160672	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer`	20181129	20181123
22004584	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer`	20181129	20181123
22916492	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
22923162	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O2_-fomit-frame-pointer`	20181129	20181123
22950128	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O2_-fomit-frame-pointer`	20181129	20181123
22951188	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer`	20181129	20181123
22951522	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer`	20181129	20181123
22962200	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
22975836	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O2_-fomit-frame-pointer`	20181129	20181123
22985656	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
22994322	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O2_-fomit-frame-pointer`	20181129	20181123
23004148	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20181129	20181123
23005536	? ? ?	? ? ?	`ref`	`gcc_-m64_-O2_-fomit-frame-pointer`	20181129	20181123
23021398	? ? ?	? ? ?	`ref`	`gcc_-O2_-fomit-frame-pointer`	20181129	20181123
23564382	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer`	20181129	20181123
23580922	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O2_-fomit-frame-pointer`	20181129	20181123
23613240	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer`	20181129	20181123
24199390	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer`	20181129	20181123
24209690	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20181129	20181123
24414010	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer`	20181129	20181123
24492744	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
24513626	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20181129	20181123
24514794	? ? ?	? ? ?	`ref`	`gcc_-O_-fomit-frame-pointer`	20181129	20181123
24518632	? ? ?	? ? ?	`ref`	`gcc_-m64_-O_-fomit-frame-pointer`	20181129	20181123
24525202	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-O_-fomit-frame-pointer`	20181129	20181123
24584428	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
24595824	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer`	20181129	20181123
25141458	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-O_-fomit-frame-pointer`	20181129	20181123
25144496	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer`	20181129	20181123
25170000	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer`	20181129	20181123
25185262	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-O_-fomit-frame-pointer`	20181129	20181123
25215388	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer`	20181129	20181123
25244626	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer`	20181129	20181123
25968508	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
25981566	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-O_-fomit-frame-pointer`	20181129	20181123
28229436	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7_-Os_-fomit-frame-pointer`	20181129	20181123
28423498	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
28429412	? ? ?	? ? ?	`ref`	`gcc_-Os_-fomit-frame-pointer`	20181129	20181123
28429434	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer`	20181129	20181123
28434046	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
28434994	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
28435748	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
28444332	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20181129	20181123
28451482	? ? ?	? ? ?	`ref`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181129	20181123
28460502	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20181129	20181123
28477280	? ? ?	? ? ?	`ref`	`gcc_-m64_-Os_-fomit-frame-pointer`	20181129	20181123
28718914	? ? ?	? ? ?	`ref`	`gcc_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
28727238	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
29067234	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer`	20181129	20181123
29086660	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer`	20181129	20181123
29679196	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
29689054	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer`	20181129	20181123
30224540	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer`	20181129	20181123
30224826	? ? ?	? ? ?	`ref`	`gcc_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
30225448	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
30231182	? ? ?	? ? ?	`ref`	`gcc_-march=k8_-Os_-fomit-frame-pointer`	20181129	20181123
30235028	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer`	20181129	20181123
30255790	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer`	20181129	20181123
30259988	? ? ?	? ? ?	`ref`	`gcc_-m64_-march=core2_-Os_-fomit-frame-pointer`	20181129	20181123
63566228	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops`	20181129	20181123
63616880	? ? ?	? ? ?	`ref`	`gcc`	20181129	20181123
63825438	? ? ?	? ? ?	`ref`	`cc`	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: 0x1edcd20: v4i64 = X86ISD::VTRUNC 0x1edcb50
try.c: 0x1edcb50: v16i32 = vselect 0x1ed9790, 0x1e66650, 0x1edca20
try.c: 0x1ed9790: v4i1 = X86ISD::PCMPGTM 0x1ec5200, 0x1e5a540
try.c: 0x1ec5200: v4i64 = X86ISD::VBROADCAST 0x1e5a8d0
try.c: 0x1e5a8d0: i64,ch = load<LD8[%uglygep72]> 0x1dbfdd0, 0x1eab7f0, undef:i64
try.c: 0x1eab7f0: i64 = add 0x1ec60e0, 0x1e55210
try.c: 0x1ec60e0: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0x1ebca10: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0x1e55210: i64 = shl 0x1ebc1c0, Constant:i8<3>
try.c: 0x1ebc1c0: i64,ch = CopyFromReg 0x1dbfdd0, Register:i64 %vreg50
try.c: 0x1ec65a0: i64 = Register %vreg50
try.c: 0x1e58190: i8 = Constant<3>
try.c: 0x1ec3870: i64 = undef
try.c: 0x1e5a540: v4i64,ch = CopyFromReg 0x1dbfdd0, Register:v4i64 %vreg13
try.c: 0x1e72130: v4i64 = Register %vreg13
try.c: 0x1e66650: v16i32 = X86ISD::VBROADCAST 0x1ebc420
try.c: 0x1ebc420: i32,ch = load<LD4[ConstantPool]> 0x1dbfdd0, 0x1edc690, undef:i64
try.c: 0x1edc690: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0x1e6fc50: i64 = TargetConstantPool<i32 1> 0
try.c: 0x1ec3870: i64 = undef
try.c: 0x1edca20: 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: 0x1edc8f0: i32 = Constant<0>
try.c: 0x1edc8f0: i32 = Constant<0>
try.c: 0x1edc8f0: i32 = Constant<0>
try.c: 0x1edc8f0: 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: 0xa4b4b0: v4i64 = X86ISD::VTRUNC 0xa4b2e0
try.c: 0xa4b2e0: v16i32 = vselect 0xa35dc0, 0x9c93c0, 0xa4b1b0
try.c: 0xa35dc0: v4i1 = X86ISD::PCMPGTM 0xa32d90, 0x9ca170
try.c: 0xa32d90: v4i64 = X86ISD::VBROADCAST 0x9ca500
try.c: 0x9ca500: i64,ch = load<LD8[%uglygep72]> 0x92ddd0, 0xa190c0, undef:i64
try.c: 0xa190c0: i64 = add 0xa33c70, 0x9d2e80
try.c: 0xa33c70: i64 = X86ISD::Wrapper TargetGlobalAddress:i64<[64 x i64]* @cycles> 0
try.c: 0xa301f0: i64 = TargetGlobalAddress<[64 x i64]* @cycles> 0
try.c: 0x9d2e80: i64 = shl 0xa2f9a0, Constant:i8<3>
try.c: 0xa2f9a0: i64,ch = CopyFromReg 0x92ddd0, Register:i64 %vreg50
try.c: 0xa34130: i64 = Register %vreg50
try.c: 0x9ddf20: i8 = Constant<3>
try.c: 0xa31400: i64 = undef
try.c: 0x9ca170: v4i64,ch = CopyFromReg 0x92ddd0, Register:v4i64 %vreg13
try.c: 0x9cd410: v4i64 = Register %vreg13
try.c: 0x9c93c0: v16i32 = X86ISD::VBROADCAST 0xa2fc00
try.c: 0xa2fc00: i32,ch = load<LD4[ConstantPool]> 0x92ddd0, 0xa4ae20, undef:i64
try.c: 0xa4ae20: i64 = X86ISD::Wrapper TargetConstantPool:i64<i32 1> 0
try.c: 0x9e4840: i64 = TargetConstantPool<i32 1> 0
try.c: 0xa31400: i64 = undef
try.c: 0xa4b1b0: 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: 0xa4b080: i32 = Constant<0>
try.c: 0xa4b080: i32 = Constant<0>
try.c: 0xa4b080: i32 = Constant<0>
try.c: 0xa4b080: 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