Firestorm: ANDS (register, lsr, 32-bit) measurements

Code:

  ands w0, w0, w1, lsr #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: 2.000

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	4c	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	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	1	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	16	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	147	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	2	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	16	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	16	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036
1004	2035	15	0	61	1000	1862	25	2000	2000	1000	126235	0	2035	2035	1729	3	1866	1000	1000	2000	2035	41	1	1	1001	1000	0	73	1	43	1	1	1920	2000	1000	2036	2036	2036	2036	2036

Test 2: Latency 1->2

Code:

  ands w0, w0, w1, lsr #17

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0035

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

retire uop (01)	cycle (02)	03	1e	3f	4c	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)	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
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	2	3	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	15	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	1	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10179	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	18	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	149	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	84	441	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

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

retire uop (01)	cycle (02)	03	1e	1f	3f	4c	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	20035	150	96	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	172	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	149	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	15	0	536	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	399	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036

Test 3: Latency 1->3

Code:

  ands w0, w1, w0, lsr #17

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0035

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	1e	3f	4c	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 miss (a1)	ld unit uop (a6)	st unit uop (a7)	l1d cache writeback (a8)	ac	c2	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
10204	20035	150	0	0	0	114	156	10000	19862	39	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10312	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	15	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	21	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	0	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	24	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	0	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	0	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	12	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	0	61	10000	19862	25	20100	20100	10100	1305121	0	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036
10204	20035	150	0	0	0	12	61	10000	19862	25	20100	20100	10100	1305121	1	49	16955	20035	20035	18581	3	18720	10100	10200	20200	20035	41	1	1	10201	100	99	100	10100	100	0	0	0	0	0	0	710	1	39	1	1	19922	20000	10100	20036	20036	20036	20036	20036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

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)	1e	1f	3f	4c	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 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	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	2	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	1	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	3	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	1	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	3	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	8	27	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	0	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036
10024	20035	150	0	1	0	0	0	61	10000	19862	25	20010	20010	10010	1305229	0	49	16955	20035	20035	18603	3	18740	10010	10020	20020	20035	41	1	1	10021	10	9	10	10010	10	0	0	640	2	41	2	2	19930	20000	10010	20036	20036	20036	20036	20036

Test 4: Latency 4->2

Chain cycles: 1

Code:

  ands w0, w1, w2, lsr #17
  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): 2.0035

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	l2 tlb miss instruction (0a)	19	1e	1f	3f	4c	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 tlb access (a0)	l1d tlb miss (a1)	l1d cache writeback (a8)	ac	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d5	map dispatch bubble (d6)	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20204	30035	225	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	1	16	0	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	224	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1320	0	16	0	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	0	16	0	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	0	16	0	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	6	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	4	1	0	1	1	1	1319	0	16	0	29983	30000	20100	30036	30036	30036	30036	30036
20204	30081	224	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	0	16	0	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30077	27391	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	0	16	0	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	224	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	7	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1320	0	16	0	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	1	0	1	1	1	1319	0	16	0	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	224	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	49	26955	30035	30035	27391	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	1	1	1	1319	0	16	0	29983	30000	20100	30036	30036	30036	30036	30036

1000 unrolls and 10 iterations

Result (median cycles for code, minus 1 chain cycle): 2.0035

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

retire uop (01)	cycle (02)	03	18	1e	3f	4c	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)	flags prf full (73)	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)	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	30035	224	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27482	7	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	2	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	224	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	12	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30081	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	2	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	0	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036

Test 5: Latency 4->3

Chain cycles: 1

Code:

  ands w0, w1, w2, lsr #17
  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): 2.0035

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	09	l2 tlb miss data (0b)	18	19	1e	1f	3a	3f	4c	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)	flags prf full (73)	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	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d5	map dispatch bubble (d6)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1320	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	1	49	26955	30035	30035	27391	0	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	1	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	1	49	26955	30035	30035	27391	0	8	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1320	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1320	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	0	49	26955	30035	30035	27391	0	8	27485	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29983	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	1	49	26955	30035	30035	27391	0	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29982	30000	20100	30036	30036	30036	30036	30036
20204	30035	225	0	0	0	0	0	0	0	0	61	10000	29899	25	30100	30100	20107	1956240	1	49	26955	30035	30035	27391	0	7	27486	20107	20224	30236	30035	85	1	1	20201	100	99	100	20100	10100	0	0	0	0	0	0	0	1	1	1	1319	0	16	29983	30000	20100	30036	30036	30036	30036	30036

1000 unrolls and 10 iterations

Result (median cycles for code, minus 1 chain cycle): 2.0035

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

retire uop (01)	cycle (02)	03	09	18	1e	1f	3f	4c	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 cache writeback (a8)	ac	c2	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
20024	30035	225	0	0	0	0	61	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30077	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	145	10000	29891	25	30010	30010	20010	1956289	0	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	105	10000	29891	25	30010	30025	20010	1956289	0	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	145	10000	29891	25	30010	30010	20010	1956289	0	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	2	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30081
20024	30035	225	0	0	0	0	145	10000	29891	25	30010	30010	20010	1956289	0	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	195	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	166	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	166	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	224	0	0	0	0	145	10000	29891	25	30010	30010	20010	1956289	0	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036
20024	30035	225	0	0	0	0	208	10000	29891	25	30010	30010	20010	1956289	1	49	26955	30035	30035	27391	3	27498	20010	20020	30020	30035	85	1	1	20021	10	9	10	20010	10010	0	0	0	0	1270	1	33	1	1	29959	30000	20010	30036	30036	30036	30036	30036

Test 6: throughput

Count: 8

Code:

  ands w0, w8, w9, lsr #17
  ands w1, w8, w9, lsr #17
  ands w2, w8, w9, lsr #17
  ands w3, w8, w9, lsr #17
  ands w4, w8, w9, lsr #17
  ands w5, w8, w9, lsr #17
  ands w6, w8, w9, lsr #17
  ands w7, w8, w9, lsr #17

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): 0.6676

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

retire uop (01)	cycle (02)	03	19	1e	1f	3f	4c	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)	flags prf full (73)	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
80204	53449	400	0	0	0	307	80000	48741	25	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	2909	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	147	80000	48741	25	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	2909	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	296	80000	48741	25	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	2909	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	61	80000	48689	25	160100	160100	80100	3440005	1	49	50330	53458	53410	43298	3024	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	233	80000	48741	25	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	3024	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5129	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	61	80000	48741	25	160100	160100	80100	3440005	1	49	50330	53410	53410	43298	2909	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53459	53411	53411
80204	53410	400	0	0	0	126	80000	48741	46	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	3024	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	124	80000	48741	25	160100	160100	80100	3440005	0	49	50330	53410	53410	43298	3024	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	852	80000	48741	25	160100	160100	80100	3440005	1	49	50330	53410	53410	43298	2909	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411
80204	53410	400	0	0	0	103	80000	48741	25	160100	160100	80100	3440005	1	49	50330	53410	53410	43298	3024	3	43360	80100	80200	160200	53410	39	1	1	80201	100	99	100	80100	100	0	0	5110	1	24	1	1	53390	160000	80100	53411	53411	53411	53411	53411

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.6673

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	18	19	1e	1f	3f	4c	4d	51	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	69	6a	6b	6d	6e	map stall dispatch (70)	flags prf full (73)	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	cd	cf	l1i cache miss demand (d3)	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? int retires (ef)	f5	f6	f7	f8	fd
80024	53401	400	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	98	50300	0	53380	53380	43290	2749	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	2	0	0	5020	0	10	24	5	3	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	400	0	0	0	0	0	631	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	5	24	4	5	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	400	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	2749	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	7	24	7	5	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	399	0	0	0	0	0	726	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	1	5020	2	6	24	3	5	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	399	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	5	24	5	3	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	400	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	2749	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	5	24	5	5	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	399	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	5	24	5	3	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	400	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80224	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	3	24	3	5	53360	160000	80010	53431	53381	53381	53381	53381
80024	53380	400	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	3	24	3	6	53360	160000	80010	53381	53381	53381	53381	53381
80024	53380	399	0	0	0	0	0	61	80000	47946	25	160010	160010	80010	3438130	49	50300	0	53380	53380	43290	3251	3	43352	80010	80020	160020	53380	39	1	1	80021	10	9	10	80010	10	0	0	0	5020	0	5	24	6	4	53360	160000	80010	53381	53381	53381	53430	53381

ANDS (register, lsr, 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