Icestorm: MOVI (vector, 4H, lsl) measurements

Code:

  movi v0.4h, #3, lsl #8

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.001

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	dispatch simd uop (57)	ldst uops in schedulers (5b)	dispatch uop (78)	map simd uop (7e)	? int output thing (e9)	? simd retires (ee)
1004	539	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000
1004	534	1001	1	1000	1000	4000	1000	1000	1	1000

Count: 8

Code:

  movi v0.4h, #3, lsl #8
  movi v1.4h, #3, lsl #8
  movi v2.4h, #3, lsl #8
  movi v3.4h, #3, lsl #8
  movi v4.4h, #3, lsl #8
  movi v5.4h, #3, lsl #8
  movi v6.4h, #3, lsl #8
  movi v7.4h, #3, lsl #8

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.5004

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	schedule ldst uop (55)	dispatch int uop (56)	dispatch simd uop (57)	int uops in schedulers (59)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
80204	40096	80105	101	80004	0	100	80008	300	320044	80110	200	80014	200	1	80000	100
80204	40035	80109	101	80008	0	100	80012	300	320036	80108	200	80012	200	1	80000	100
80204	40034	80105	101	80004	0	100	80008	300	320036	80108	200	80012	200	1	80000	100
80204	40034	80105	101	80004	0	100	80008	300	320036	80108	200	80012	200	1	80000	100
80204	40034	80105	101	80004	0	100	80008	300	320036	80108	200	80012	200	1	80000	100
80204	40034	80105	101	80004	0	100	80008	300	320196	80151	200	80061	200	1	80000	100
80204	40034	80105	101	80004	0	100	80008	300	320036	80108	200	80012	200	1	80000	100
80205	40068	80139	101	80038	0	100	80050	300	320036	80108	200	80012	200	1	80000	100
80281	40459	80210	146	80040	24	141	80052	300	320044	80110	200	80014	200	1	80000	100
80205	40069	80143	101	80042	0	100	80054	300	320036	80108	200	80012	200	1	80000	100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5004

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	dispatch int uop (56)	dispatch simd uop (57)	int uops in schedulers (59)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
80024	40191	80027	21	80006	20	80010	69	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	66	320208	80074	20	80063	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10
80024	40034	80021	21	80000	20	80000	65	320000	80020	20	80000	20	11	80000	10

MOVI (vector, 4H, lsl)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations