Icestorm: STNP (signed offset, S) measurements

Code:

  stnp s0, s1, [x6, #0x10]
  nop ; nop ; nop ; nop ; nop ; nop ; nop

Initialization

  mov x0, 0

(no loop instructions)

1000 unrolls and 1 iteration

Retires (minus 7 nops): 2.000

Issues: 2.000

Integer unit issues: 0.001

Load/store unit issues: 1.000

SIMD/FP unit issues: 1.000

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 simd uop (57)	dispatch ldst uop (58)	simd uops in schedulers (5a)	ldst uops in schedulers (5b)	dispatch uop (78)	map ldst uop (7d)	map simd uop (7e)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)
9006	4537	2042	1	1023	1018	1023	1000	8740	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2413	2001	1	1000	1000	1000	1000	8748	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	4079	2001	1	1000	1000	1000	1000	8744	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2325	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2310	2001	1	1000	1000	1000	1000	8748	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2309	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2301	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2301	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2301	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000
9004	2301	2001	1	1000	1000	1000	1000	8749	4000	2000	1000	1000	2000	2000	1	1000	1000

Count: 8

Code:

  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]
  stnp s0, s1, [x6, #0x10]

Initialization

  mov x7, x6
  mov x8, x6
  mov x9, x6
  mov x10, x6
  mov x11, x6
  mov x12, x6
  mov x13, x6

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 1.0378

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)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)	? int retires (ef)
160206	80147	160155	101	80036	80018	100	80038	80001	300	1413742	320026	160107	200	80006	80006	202	160070	160070	2	80000	80000	100
160204	83029	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160205	83087	160153	101	80034	80018	100	80036	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100
160204	83025	160105	101	80004	80000	100	80006	80001	300	1413706	320026	160107	200	80006	80006	200	160012	160012	1	80000	80000	100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 1.0378

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)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)	? int retires (ef)
160026	80154	160065	11	80036	80018	10	80038	80031	30	1413515	320146	160077	20	80036	80036	20	160012	160012	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160025	83056	160063	11	80034	80018	10	80036	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160025	83057	160059	11	80030	80018	10	80030	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83005	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10
160024	83007	160011	11	80000	80000	10	80000	80000	30	1413343	320000	160010	20	80000	80000	20	160000	160000	1	80000	80000	10

STNP (signed offset, S)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations