Icestorm: MVN (register, ror, 32-bit) measurements

Code:

  mvn w0, w0, ror #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: 2.001

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	1000	2001	1000

Test 2: Latency 1->2

Code:

  mvn w0, w0, ror #17

Initialization

  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0030

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	schedule ldst uop (55)	dispatch int uop (56)	dispatch simd uop (57)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
10204	20030	20101	20101	0	0	10104	0	0	529100	0	10104	10210	0	10212	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10252	20015	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10213	20001	10100
27950	47363	35337	28712	71	6554	18223	72	0	529143	0	10104	10210	0	10212	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529143	0	10104	10210	0	10210	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10212	20001	10100
10205	20060	20115	20115	0	0	10137	0	0	529186	0	10104	10212	0	10212	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10212	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10212	20001	10100
10204	20030	20101	20101	0	0	10104	0	0	529186	0	10104	10212	0	10212	20001	10100

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0030

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
10024	20030	20021	20021	10025	529221	10025	10034	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	10020	20011	10010

Test 3: throughput

Count: 8

Code:

  mvn w0, w8, ror #17
  mvn w1, w8, ror #17
  mvn w2, w8, ror #17
  mvn w3, w8, ror #17
  mvn w4, w8, ror #17
  mvn w5, w8, ror #17
  mvn w6, w8, ror #17
  mvn w7, w8, ror #17

Initialization

  mov x8, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.6675

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
80204	53429	160118	160118	80131	1360301	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360566	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100
80205	53433	160159	160159	80175	1361147	80176	80289	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100
62193	41450	124207	124207	62187	1360838	80130	80236	80236	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	80236	160017	80100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.6671

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	dispatch int uop (56)	int uops in schedulers (59)	dispatch uop (78)	map int uop (7c)	map int uop inputs (7f)	? int output thing (e9)	? int retires (ef)
80024	53378	160039	160039	80051	1359975	80051	80056	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80230	160271	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	80020	160011	80010
80024	53371	160021	160021	80020	1361067	80225	80225	80020	160011	80010

MVN (register, ror, 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: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations