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

UMINV (vector, 8B)

Test 1: uops

Code:

  uminv b0, v0.8b
  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)03mmu table walk data (08)091e3f4e51schedule 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
10043037220006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013054303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037220006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300816125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372200010325472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230006125472510001000100039816013018303730372414328951000100020003037303711100110000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  uminv b0, v0.8b
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)031e1f3f4e51schedule 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)ld unit uop (a6)l1d cache writeback (a8)a9acbranch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1020430037225006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000171011611296332100001003003830038300383003830038
1020430037225006129547251010010010000100100005004277160130018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
1020430037225006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
10204300372240034629547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
1020430037224006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011621296330100001003003830038300383003830038
10204300372250076229547251010010010000100100005004277160130018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
1020430037225006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
1020430037224006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038
1020430037225006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830085300383003830038
1020430037225006129547251010010010000100100005004277160130018300373003728264328745101002001000020020000300373003711102011009910010010000100000000071011611296330100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

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)9faccfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300372110021109101010000100640216222962910000103003830038300383003830038
100243003722501956129547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037224006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830083
1002430037225008229547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640241222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038
1002430037225006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100640216222962910000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  uminv b0, v8.8b
  uminv b1, v8.8b
  uminv b2, v8.8b
  uminv b3, v8.8b
  uminv b4, v8.8b
  uminv b5, v8.8b
  uminv b6, v8.8b
  uminv b7, v8.8b
  movi v8.16b, 9

(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)03mmu table walk instruction (07)l2 tlb miss instruction (0a)3f51schedule 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 cache writeback (a8)branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8020420061150115052580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003914911302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181162120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040
802042003915011302580108100800081008002050064013212002020039200399977699908012020080032200160064200392003911802011009910010080000100011151181161120036800001002004020040200402004020040

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03181e3f51schedule 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)60696b6d6emap 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)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242005115600705258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020316212003680000102004020040200402004020040
80024200391500082258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020216322003680000102004020040200402004020040
800242003915000103258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116122003680000102004020040200402004020040
800242003915000211258001010800001080000506400001200200200392003999963100198001020800002016000020039200891180021109101080000100005020116122003680000102004020040200402004020040
80024200391500040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100005020116112003680000102004020040200402004020040