Icestorm: FCMGE (scalar, zero, D) measurements

Code:

  fcmge d0, d0, #0

Initialization

  movi v0.16b, 1
  movi v1.16b, 2

(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)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000
1004	2033	1001	1	1000	1000	50248	1000	1000	1000	1	1000

Test 2: Latency 1->2

Code:

  fcmge d0, d0, #0

Initialization

  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0033

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)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10006	200	10006	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10205	20066	10109	101	10008	100	10034	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100
10204	20033	10101	101	10000	100	10000	300	509248	10100	200	10004	200	10004	1	10000	100

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0033

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)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10024	20033	10021	21	10000	20	10000	0	70	0	509247	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	0	70	0	509248	10020	20	0	10000	20	10000	11	10000	10
10024	20033	10021	21	10000	20	10000	1737	61079	22076	509564	15122	4531	1933	10050	20	10004	11	10000	10

Test 3: throughput

Count: 8

Code:

  fcmge d0, d8, #0
  fcmge d1, d8, #0
  fcmge d2, d8, #0
  fcmge d3, d8, #0
  fcmge d4, d8, #0
  fcmge d5, d8, #0
  fcmge d6, d8, #0
  fcmge d7, d8, #0

Initialization

  movi v8.16b, 9

(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)	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)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
80204	40054	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80014	1	80000	100
80204	40034	80107	101	80006	100	80010	300	320044	80110	200	80014	200	80014	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320044	80110	200	80014	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320044	80110	200	80014	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80012	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80014	1	80000	100
80204	40034	80105	101	80004	100	80008	300	320036	80108	200	80012	200	80012	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)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
80024	40476	80027	21	80006	20	80010	0	70	0	320208	80074	20	0	80066	20	80067	11	80000	10
80025	40087	80063	21	80042	20	80054	0	70	0	320052	80032	20	0	80018	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40039	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10
80024	40034	80021	21	80000	20	80000	0	70	0	320000	80020	20	0	80000	20	80000	11	80000	10

FCMGE (scalar, zero, D)

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