Firestorm: ADDS (register, 32-bit) measurements

Code:

  adds w0, w0, w1

Initialization

  mov x0, 1
  mov x1, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 1.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

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

retire uop (01)	cycle (02)	03	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst int alu (97)	l1d cache writeback (a8)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
1004	1035	8	0	61	917	25	1000	1022	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	2	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	0	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	3	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	7	0	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	0	61	917	25	1000	1000	1000	62250	1	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	35	2	2	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	0	61	917	25	1000	1000	1000	62250	1	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	7	0	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	0	61	917	25	1000	1000	1000	62250	1	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	7	0	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036
1004	1035	8	0	61	917	25	1000	1000	1000	62250	0	1035	1035	805	3	882	1000	1000	2000	1035	40	1	1	1001	1000	0	73	1	27	1	1	993	1000	1000	1036	1036	1036	1036	1036

Test 2: Latency 1->2

Code:

  adds w0, w0, w1

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

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

retire uop (01)	cycle (02)	03	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	ea	? int retires (ef)	f5	f6	f7	f8	fd
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	3	10100	10036	10036	10036	10036	10036
10204	10035	75	0	103	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10072	10036	10036	10036	10036
10204	10035	75	0	82	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	82	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	261	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036
10204	10035	75	0	82	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	710	1	27	1	1	9995	10000	0	10100	10036	10036	10036	10036	10036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

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

retire uop (01)	cycle (02)	03	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10024	10035	75	21	140	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	78	61	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	222	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	81	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	427	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10083	10036
10024	10035	75	264	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	248	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	327	61	9918	25	10010	10010	10010	647246	0	49	6955	10071	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	3	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	54	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	0	640	2	27	2	2	9997	10000	10010	10036	10036	10036	10036	10036

Test 3: Latency 1->3

Code:

  adds w0, w1, w0

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

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

retire uop (01)	cycle (02)	03	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	l1d tlb access (a0)	ld unit uop (a6)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10204	10035	76	21	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	240	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	0	577	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	333	61	9920	25	10100	10100	10100	647152	1	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	76	0	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	0	551	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	0	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036
10204	10035	75	243	61	9920	25	10100	10100	10100	647152	0	49	6955	10035	10035	8656	3	8732	10100	10200	20200	10035	40	1	1	10201	100	99	100	10100	100	0	0	710	1	27	1	1	9995	10000	10100	10036	10036	10036	10036	10036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

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

retire uop (01)	cycle (02)	03	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	3	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	4	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	3	27	4	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	4	3	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	6	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	3	27	4	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	107	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	4	3	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	0	61	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	3	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	3	61	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	3	27	3	4	9997	10000	10010	10083	10036	10036	10036	10036
10024	10035	76	183	61	9918	25	10010	10010	10010	647246	1	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	3	4	9997	10000	10010	10036	10036	10036	10036	10036
10024	10035	75	12	61	9918	25	10010	10010	10010	647246	0	49	6955	10035	10035	8678	3	8754	10010	10020	20020	10035	40	1	1	10021	10	9	10	10010	10	640	4	27	4	3	9997	10000	10010	10036	10036	10036	10036	10036

Test 4: Latency 4->2

Chain cycles: 1

Code:

  adds w0, w1, w2
  cset x1, cc

Initialization

  mov x0, 1
  mov x1, 2
  mov x2, 3
  mov x3, 4
  mov x4, 5

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code, minus 1 chain cycle): 1.0035

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

retire uop (01)	cycle (02)	03	mmu table walk instruction (07)	l2 tlb miss instruction (0a)	1e	1f	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	ac	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20204	20035	150	1	1	0	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	162	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	8	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	0	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	174	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	7	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20205	20035	150	1	1	471	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	12	0	61	19930	25	20100	20100	20112	1297233	1	49	16955	20035	20035	17425	8	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	0	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	0	0	3866	19930	25	20100	20100	20112	1297233	1	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	149	1	1	3	0	103	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	8	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1338	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	1	1	0	0	61	19930	25	20100	20100	20112	1297233	0	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	1	16	1	1	20015	20000	20100	20036	20036	20036	20036	20036

1000 unrolls and 10 iterations

Result (median cycles for code, minus 1 chain cycle): 1.0035

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

retire uop (01)	cycle (02)	03	19	1e	1f	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	l1d tlb access (a0)	l1d tlb miss (a1)	l1d cache writeback (a8)	a9	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20024	20035	150	0	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	18	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	3	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	1	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	21	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	3	19995	20000	20010	20036	20036	20036	20036	20065
20024	20035	150	0	24	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	24	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	3	352	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	6	1270	2	27	2	2	19995	20000	20010	20036	20036	20036	20036	20036

Test 5: Latency 4->3

Chain cycles: 1

Code:

  adds w0, w1, w2
  cset x2, cc

Initialization

  mov x0, 1
  mov x1, 2
  mov x2, 3
  mov x3, 4
  mov x4, 5

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code, minus 1 chain cycle): 1.0035

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

retire uop (01)	cycle (02)	03	1e	1f	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	l1d cache writeback (a8)	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	map dispatch bubble (d6)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20204	20035	150	9	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	0	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	21	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	24	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	149	18	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	462	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	2	1	1	1	1320	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	0	0	82	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17486	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	3	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	18	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	7	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1319	16	20012	20000	20100	20036	20036	20036	20036	20036
20204	20035	150	18	0	61	19930	25	20100	20100	20112	1297233	49	16955	20035	20035	17425	8	17485	20112	20224	30236	20035	64	1	1	20201	100	99	100	20100	10100	0	1	1	1	1320	16	20012	20000	20100	20036	20036	20036	20036	20036

1000 unrolls and 10 iterations

Result (median cycles for code, minus 1 chain cycle): 1.0035

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	l2 tlb miss data (0b)	18	19	1e	1f	3a	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	l1d tlb access (a0)	l1d tlb miss (a1)	ld unit uop (a6)	st unit uop (a7)	l1d cache writeback (a8)	a9	ac	c2	cd	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20024	20035	150	0	0	0	0	6	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	45	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	6	0	0	0	1270	1	27	1	1	20045	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	15	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	12	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	0	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	0	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	12	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	387	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	306	0	0	61	19918	25	20010	20010	20010	1297247	1	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036
20024	20035	150	0	0	0	0	21	0	0	61	19918	25	20010	20010	20010	1297247	0	49	16955	20035	20035	17428	3	17504	20010	20020	30020	20035	64	1	1	20021	10	9	10	20010	10010	0	0	0	0	0	0	0	0	0	1270	1	27	1	1	19995	20000	20010	20036	20036	20036	20036	20036

Test 6: throughput

Count: 8

Code:

  adds w0, w8, w9
  adds w1, w8, w9
  adds w2, w8, w9
  adds w3, w8, w9
  adds w4, w8, w9
  adds w5, w8, w9
  adds w6, w8, w9
  adds w7, w8, w9

Initialization

  mov x8, 9
  mov x9, 10
  mov x10, 11

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.3342

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

retire uop (01)	cycle (02)	03	l1i tlb fill (04)	l2 tlb miss data (0b)	18	19	1e	1f	3f	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	l1d cache writeback (a8)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
80204	26763	200	0	0	0	0	12	0	35	25	80100	80100	80100	400500	0	49	23655	26875	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	5	19	6	1	26731	80259	80100	26874	26736	26736	26736	26736
80204	26827	201	0	0	0	3	12	0	415	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	12	0	742	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	201	0	0	0	0	6	0	77	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	0	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	0	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	0	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	6	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	201	0	0	0	0	0	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736
80204	26735	200	0	0	0	0	0	0	35	25	80100	80100	80100	400500	0	49	23655	26735	26735	16672	3	16690	80100	80200	160200	26735	39	1	1	80201	100	99	100	80100	100	0	5110	1	19	1	1	26731	80000	80100	26736	26736	26736	26736	26736

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.3338

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

retire uop (01)	cycle (02)	03	mmu table walk instruction (07)	1e	3f	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	9f	ld unit uop (a6)	l1d cache writeback (a8)	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
80024	26711	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	57	5020	4	18	2	4	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	2	18	4	2	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	60	5020	4	18	4	2	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16709	80075	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	60	5020	4	18	4	2	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	199	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	18	5020	2	18	2	4	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	54	5020	4	18	2	4	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	207	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	132	5020	4	18	4	2	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	56	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	51	5020	2	18	4	4	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	1	0	700	25	80010	80010	80010	400050	0	49	23625	26705	26705	16677	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	54	5020	2	18	2	4	26702	80000	80010	26706	26706	26706	26706	26706
80024	26705	200	0	0	35	25	80010	80010	80010	400050	0	49	23625	26705	26705	16665	3	16683	80010	80020	160020	26705	39	1	1	80021	10	9	10	80010	10	0	0	84	5020	4	18	2	4	26702	80000	80010	26706	26706	26706	26706	26706

ADDS (register, 32-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: Latency 1->3

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 4: Latency 4->2

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 5: Latency 4->3

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 6: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations