Icestorm: MVN (register, lsl, 64-bit) measurements

Code:

  mvn x0, x0, lsl #17

Initialization

  mov x0, 1
  mov x1, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 2.000

Integer unit issues: 2.001

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

Recorded non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)	? int retires (ef)
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	0	0	2001	0	0	1000

Test 2: Latency 1->2

Code:

  mvn x0, x0, lsl #17

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0030

Recorded non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
10204	20030	20101	20101	10104	529100	10104	10210	10210	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	10212	20001	10100

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0030

Recorded non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
10024	20030	20021	20021	10025	529197	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010

Test 3: throughput

Count: 8

Code:

  mvn x0, x8, lsl #17
  mvn x1, x8, lsl #17
  mvn x2, x8, lsl #17
  mvn x3, x8, lsl #17
  mvn x4, x8, lsl #17
  mvn x5, x8, lsl #17
  mvn x6, x8, lsl #17
  mvn x7, x8, lsl #17

Initialization

  mov x8, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.6675

Recorded non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)	? int retires (ef)
80204	53403	160117	160117	80130	1360301	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160016	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80205	53435	160165	160165	80178	1360838	80130	80236	18852	0	0	37495	0	0	18741
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	0	0	160017	0	0	80100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.6671

Recorded non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010
80024	53378	160039	160039	80051	1360232	80051	80056	80056	160029	80010

MVN (register, lsl, 64-bit)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: Latency 1->2

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 3: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations