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

Code:

  eon w0, w0, w1, 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	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000
1004	2030	2001	2001	1000	52265	1000	1000	2000	2001	1000

Test 2: Latency 1->2

Code:

  eon w0, w0, w1, 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)	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)
10204	20030	20101	20101	10104	529143	10104	10210	20220	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529524	10137	10252	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	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	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010

Test 3: Latency 1->3

Code:

  eon w0, w1, 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)	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)
10204	20030	20101	20101	10104	529143	10104	10210	20220	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	20001	10100
10204	20030	20101	20101	10104	529186	10104	10212	20224	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	529197	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010
10024	20030	20021	20021	10020	529253	10020	10020	20020	20011	10010

Test 4: throughput

Count: 8

Code:

  eon w0, w8, w9, ror #17
  eon w1, w8, w9, ror #17
  eon w2, w8, w9, ror #17
  eon w3, w8, w9, ror #17
  eon w4, w8, w9, ror #17
  eon w5, w8, w9, ror #17
  eon w6, w8, w9, ror #17
  eon w7, w8, w9, ror #17

Initialization

  mov x8, 9
  mov x9, 10

(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	53403	160116	160116	80130	1360563	80129	80234	160268	160016	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80237	160276	160020	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53415	160116	160116	80129	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	160017	80100
80204	53404	160117	160117	80130	1360838	80130	80236	160272	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	53379	160038	160038	80050	1359975	80051	80058	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80025	53409	160084	160084	80099	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010
80024	53371	160021	160021	80020	1359903	80020	80020	160020	160011	80010

EON (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: Latency 1->3

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 4: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations