Firestorm: SMADDL measurements

Code:

  smaddl x0, w0, w1, x2

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	l2 tlb miss data (0b)	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	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)	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
1004	3033	23	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	2	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	23	0	3	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	9	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	23	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	3	73	1	16	1	1	2951	1000	1000	3034	3034	3034	3034	3034
1004	3033	24	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	22	0	0	251	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	22	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	12	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	23	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	22	0	0	61	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	23	0	0	114	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034
1004	3033	22	0	0	139	1922	25	1000	1000	1000	81440	0	40	3033	3033	2760	3	2891	1000	1000	3000	3033	380	1	1	1001	1000	0	0	73	1	16	1	1	2939	1000	1000	3034	3034	3034	3034	3034

Test 2: Latency 1->2

Code:

  smaddl x0, w0, w1, x2

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	09	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	ld unit uop (a6)	l1d cache writeback (a8)	a9	ac	cd	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10204	30033	224	1	0	61	19922	25	10100	10100	10100	828940	1	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	3	1	0	114	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	1	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	224	0	0	61	19922	25	10100	10100	10100	828940	1	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	2	0	0	0	710	1	16	1	1	29998	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	25	0	3	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	103	19922	25	10100	10100	10100	828940	0	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	2	0	3	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	61	19922	25	10100	10100	10100	828940	1	49	26953	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	4	0	0	0	710	1	16	1	1	29939	10000	10100	30034	30034	30034	30034	30034

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	09	l2 tlb miss instruction (0a)	18	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	ld unit uop (a6)	l1d cache writeback (a8)	ac	branch cond mispred nonspec (c5)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10024	30033	225	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	0	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	0	0	0	640	3	16	3	4	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	1	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	26	21	0	640	4	16	4	3	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	536	19922	25	10010	10010	10010	828490	1	49	26953	30033	30062	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	34	0	0	640	3	16	3	4	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828891	1	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	1	0	0	640	3	16	3	4	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	0	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	41	0	0	640	3	16	4	3	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	1	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	39	0	0	640	4	16	4	3	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	0	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	32	0	0	640	3	16	4	4	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	0	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	56	0	0	640	3	16	4	4	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	0	0	0	0	0	0	0	560	19922	25	10010	10010	10010	828490	1	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	0	45	0	640	4	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	0	0	0	0	0	0	0	61	19922	25	10010	10010	10010	828490	0	49	26953	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	22	9	0	640	4	16	4	4	29939	10000	10010	30034	30034	30034	30034	30034

Test 3: Latency 1->3

Code:

  smaddl x0, w1, w0, x2

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	18	19	1e	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6b	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 cache writeback (a8)	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)	ec	? int retires (ef)	f5	f6	f7	f8	fd
10204	30033	225	0	0	0	0	273	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28617	6	28736	10100	10208	30224	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	1	1	1	718	0	16	0	0	29950	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	170	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28617	7	28759	10100	10208	30224	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	1	1	1	718	0	16	0	0	29950	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	84	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28617	7	28736	10100	10208	30224	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	1	1	1	717	0	16	0	0	29949	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	193	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28617	6	28737	10100	10208	30224	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	1	1	1	717	0	16	0	0	29950	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	170	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28617	6	28737	10100	10208	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	224	0	0	0	0	170	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	170	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	18	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	149	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	170	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034
10204	30033	225	0	0	0	0	61	19922	25	10100	10100	10100	828940	1	49	26953	0	30033	30033	28610	3	28741	10100	10200	30200	30033	374	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	16	1	1	29939	10000	0	10100	30034	30034	30034	30034	30034

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	03	3f	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	60	69	6a	6b	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)	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	30033	225	66	19922	25	10010	10010	10010	828490	1	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	3	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	61	19922	25	10010	10010	10010	828490	1	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	2	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	61	19922	25	10010	10010	10010	828490	1	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	61	19922	25	10010	10010	10010	828490	1	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	1	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	61	19922	110	10010	10010	10010	828490	1	49	26953	0	30033	30033	28647	3	28763	10010	10020	30200	30033	380	1	1	10021	10	9	10	10010	10	6	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	61	19922	25	10010	10010	10010	828490	0	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	1	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	61	19922	25	10010	10010	10010	828490	0	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	61	19922	25	10010	10010	10010	828490	0	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	224	61	19922	25	10010	10010	10010	828490	0	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	53	9	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034
10024	30033	225	61	19922	25	10033	10010	10010	828490	0	49	26953	0	30033	30033	28632	3	28763	10010	10020	30020	30033	380	1	1	10021	10	9	10	10010	10	7	9	640	2	16	2	2	29939	10000	10010	30034	30034	30034	30034	30034

Test 4: Latency 1->4

Code:

  smaddl x0, w1, w2, x0

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0037

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	18	19	1e	3a	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)	ac	c2	cf	d0	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10204	10037	76	0	0	0	0	0	92	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	0	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	3	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	0	1	1	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	76	0	0	0	0	0	90	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	76	0	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	0	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10183	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	3	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	0	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	76	0	0	0	0	0	476	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	0	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	1	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038
10204	10037	75	1	0	0	0	0	48	25	10100	10100	10100	70498	1	49	6957	10037	10037	8714	3	8745	10100	10200	30200	10037	162	1	1	10201	100	99	100	10100	100	0	0	0	710	0	1	16	1	1	10033	10000	10100	10038	10038	10038	10038	10038

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0037

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

retire uop (01)	cycle (02)	03	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)	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	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	3	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	6	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	0	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	31	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	3	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	75	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	3	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038
10024	10037	76	0	0	48	25	10010	10010	10010	70048	1	49	6957	10037	10037	8736	3	8767	10010	10020	30020	10037	164	1	1	10021	10	9	10	10010	10	0	0	640	2	16	2	2	10033	10000	10010	10038	10038	10038	10038	10038

Test 5: throughput

Count: 8

Code:

  smaddl x0, w8, w9, x9
  smaddl x1, w8, w9, x9
  smaddl x2, w8, w9, x9
  smaddl x3, w8, w9, x9
  smaddl x4, w8, w9, x9
  smaddl x5, w8, w9, x9
  smaddl x6, w8, w9, x9
  smaddl x7, w8, w9, x9

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): 1.0004

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	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 tlb access (a0)	l1d tlb miss (a1)	ld unit uop (a6)	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
80204	80035	599	0	0	0	236	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	711	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	1	1	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	600	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	1	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	426	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	1	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	600	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	1	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	2	1	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	600	0	0	0	67	25	80121	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80188	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	2	0	0	0	0	0	0	0	5110	2	16	2	2	80031	80000	80100	80036	80036	80036	80036	80036
80204	80035	599	0	0	0	46	25	80100	80100	80100	400500	1	49	76955	80035	80035	69964	3	69993	80100	80200	240200	80035	164	1	1	80201	100	99	100	80100	100	0	0	0	0	0	0	0	0	5110	2	16	1	1	80031	80000	80100	80036	80036	80036	80036	80036

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 1.0004

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	18	1e	1f	3f	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 tlb access (a0)	l1d cache writeback (a8)	ac	c2	branch cond mispred nonspec (c5)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	ea	? int retires (ef)	f5	f6	f7	f8	fd
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	9	16	3	4	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	600	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80054	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	4	16	4	2	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	2	16	2	4	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	600	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	4	16	4	2	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	2	16	2	4	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	4	16	4	2	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	4	16	4	2	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	600	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	70022	3	70015	80010	80020	240416	80126	164	2	1	80021	10	9	10	80010	10	0	0	3	2	0	5034	2	16	2	4	80032	80000	0	80010	80036	80036	80036	80036	80036
80024	80035	599	0	0	0	0	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	0	0	0	0	5020	2	16	2	4	80032	80000	0	80010	80036	80036	80126	80036	80036
80024	80035	599	1	0	12	108	46	25	80010	80010	80010	400050	49	76955	80035	80035	69986	3	70015	80010	80020	240020	80035	164	1	1	80021	10	9	10	80010	10	0	1	0	0	0	5020	2	16	2	4	80032	80000	0	80010	80036	80036	80036	80036	80036

SMADDL

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 1->4

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 5: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations