Apple Microarchitecture Research by Dougall Johnson

M1/A14 P-core (Firestorm): Overview | Base Instructions | SIMD and FP Instructions
M1/A14 E-core (Icestorm):  Overview | Base Instructions | SIMD and FP Instructions

UZP1 (vector, 8H)

Test 1: uops

Code:

  uzp1 v0.8h, v0.8h, v1.8h
  movi v0.16b, 1
  movi v1.16b, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

retire uop (01)cycle (02)03l1i tlb fill (04)1e3a3f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map simd uop (7e)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst simd alu (9a)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100420371600218016872510001000100026468002018203720371572318951000100020002037203711100110000077416441787100020382038203820382038
10042037151028516872510001000100026468012018203720371572318951000100020002037203711100110000077416441787100020382038203820382038
10042037161028516872510001000100026468012018203720371572318951000100020002037203711100110000077416441787100020382038203820382038
10042037161027316872510001000100026468012018203720371572318951000100020002037203711100110000077416441787100020382038203820382038
100420371610285168725100010001000264680020182037203715723189510001000200020372037111001100002477416441787100020382038203820382038
10042037161028516872510001000100026468012018203720371572318951000100020002037203711100110003077416441787100020382038203820382038
100420371610285168725100010001000264680120182037203715723189510001000200020372037111001100003977416441787100020382038203820382038
10042037150028516872510001000100026468012018203720371572318951000100020002037203711100110000377416441787100020382038203820382038
10042037161028516872510001000100026468012018203720371572318951000100020002037203711100110000077416441787100020382038203820382038
10042037161028516872510001000100026468012018203720371572318951000100020002037203711100110000077416441787100020382038203820382038

Test 2: Latency 1->2

Code:

  uzp1 v0.8h, v0.8h, v1.8h
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk data (08)0918191e1f3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb access (a0)ld unit uop (a6)l1d cache writeback (a8)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
102042003715500000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000030071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
1020420037155000000251196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500003061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715500000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715600000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000003071011611197910100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03191e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb access (a0)l1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024200371550010319687251001010100001010000882847680020018200372003718444318767100102010000202000020037200371110021109101010000100010640616221978510000102003820038200382003820038
1002420037155006119687251001010100001010000502847680120018200372003718444318767100102010000202000020037200371110021109101010000100000640216221978510000102003820038200382003820038
1002420037155006119687251001010100001010000502847680120018200372003718444318767100102010000202000020037200371110021109101010000100003640216221978510000102003820038200382003820038
1002420037156006119687251001010100001010000712847680120018200372003718444318767100102010000202000020037200371110021109101010000100000640216221978510000102003820038200382003820038
10024200371550953619687251001010100001110000552848963120018200372003718444318767100102010000202000020037200371110021109101010000102230640216221978510000102003820038200382003820038
1002420037155006119687251001010100001010456612847680120018200372003718444318767100102010000202033820037200371110021109101010000100002035640224221978510000102003820038200382003820038
1002420037156006119687251001010100001010000502847680120018200372003718444318767100102010000202000020037200371110021109101010000100000640216221978510000102003820038200382003820038
100242003715600157919687251001010100001010000502847680120018200372003718444318767100102010000202000020037200371110021109101010000100050640216221978510000102003820038200382003820038
1002420037155006119687251001010100001010000502847680120018200372003718444318767100102010000202000020037200371110021109101010000100020640224221978510000102003820038200382003820038
1002420037155106119687251001010100001010000502847680120018200372008418444318786101652010000202000020037200371110021109101010000100003998640216221978510000102003820038200382003820038

Test 3: Latency 1->3

Code:

  uzp1 v0.8h, v1.8h, v0.8h
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)031e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)l1d cache writeback (a8)accfd0d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204200371551326421968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100000710021611197910100001002003820038200382003820038
10204200371550611968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100003710011611197910100001002003820038200382003820038
10204200371550611968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100000710011611197910100001002003820038200382003820038
102042003715605361968725101001001000010010000500284768020018200372003718422718745101002001000020020000200372003711102011009910010010000100010710011611197910100001002003820038200382003820038
10204200371563611968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100010710511611197916100001002008620132200382003820038
102042003715691031968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100001968710011611197910100001002003820038200382003820038
102042003715501031968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100000710511611197910100001002003820038200382003820038
10204200371560611968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100000710011611197910100001002003820038200382003820038
10204200371550611968725101001001000010010000500284768020018200372003718422318745101002001000020020000200372003711102011009910010010000100010710011611197910100001002003820038200382003820038
10204200371550611967625101001001000010010000500284768020018200372003718422818763101002041000020020000200372003711102011009910010010000100000710011611197910100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03l2 tlb miss data (0b)181e1f3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024200371550200611968761100101010000101000050284768012001820037200841844431876710010201000020200002013120037111002110910101000010000640216221978510000102003820038200382008420038
10024200371550000611968725100101010000101000050284768012001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371550000611968725100101010000101000050284768012001820037200371844431876710010201000020200002003720037111002110910101000010000640224221978510000102003820038200382003820038
10024200371560000611968725100101010000101000050284768012001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371560000611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371550000611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371560000611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371560000611968725100101010000101000050284768012001820037200371844431876710010201000022200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371550030611968725100101010000101000050284768002001820037200371845531876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038
10024200371550000611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010000640216221978510000102003820038200382003820038

Test 4: throughput

Count: 8

Code:

  uzp1 v0.8h, v8.8h, v9.8h
  uzp1 v1.8h, v8.8h, v9.8h
  uzp1 v2.8h, v8.8h, v9.8h
  uzp1 v3.8h, v8.8h, v9.8h
  uzp1 v4.8h, v8.8h, v9.8h
  uzp1 v5.8h, v8.8h, v9.8h
  uzp1 v6.8h, v8.8h, v9.8h
  uzp1 v7.8h, v8.8h, v9.8h
  movi v8.16b, 9
  movi v9.16b, 10

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)031e3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)5e60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8020420047156082258010010080000100800005006400000020019200382003899823999680100200800002001600002003820038118020110099100100800001000051102161120035800001002003920039200392003920039
8020420038155340258010010080000100800005356400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161120035800001002003920039200392003920039
8020420038156040258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161120035800001002003920039200392003920039
8020420038155040258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101162120035800001002003920039200392003920039
8020420038155040258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161120035800001002003920039200392003920039
8020420038155040258010010080000100800005006400000020019200382003899733999680100200800002001600002010020038118020110099100100800001000051101161120035800001002003920039200392003920039
8020420038155040258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161220035800001002003920039200392003920039
80204200381550294258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161120035800001002003920039200392003920039
802042003815504962580100100800001008000050064000000200192003820038997339996801002008000020016000020038200381180201100991001008000010018051102161120035800001002003920039200392003920039
8020420038156040258010010080000100800005006400000020019200382003899733999680100200800002001600002003820038118020110099100100800001000051101161120035800001002003920039200392003920039

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)03l2 tlb miss data (0b)18191e1f3a3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)st unit uop (a7)l1d cache writeback (a8)a9accfl1i cache miss demand (d3)d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242004815500000039258001010800001080000506400000200192003820038999631001880010208000020160000200382003811800211091010800001000000502003162320035080000102003920039200392003920039
8002420038161000120039258001010800001080000506400000200192003820038999631001880010208000020160000200382003811800211091010800001000000502003163220035080000102003920039200392003920039
8002420038155000000392580010108000010800005064000002001920038200389996271001880010208000020160000200382003811800211091010800001000400502003162320035080000102003920039200392003920039
800242003815500000039258001010800001080000506400000200192003820038999631001880010208000020160000200382003811800211091010800001000000502002163220035080000102003920039200392003920039
800242003815500000039258001010800001080000506400001200192003820038999631001880010208000020160000200382003811800211091010800001000100502002163320035080000102003920039200392003920039
800242003815500000039258001010800001080000506400001200192003820038999631001880010208000020160000200382003811800211091010800001000000502002163320035080000102003920039200392003920039
800242003815503100039258001010800001080000506400000200192003820038999631001880010208000020160000200382003811800211091010800001000000502034163320035080000102003920039200392003920039
800242003815600000039258001010800001080000506400001200192003820038999631001880010208000020160000200382003811800211091010800001000000502003163320035080000102003920039200392003920039
80024200381550000001021548029210802811380679506400000200192003820038999631001880010208000020160000200382003811800211091010800001000000502003163320035080000102003920039200392003920039
8002420038155000000392580010108000010800005064000012001920038200381000531001880010208000020160000200382003811800211091010800001000000502003162320035080000102003920039200392003920039