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

SMINV (vector, 4S)

Test 1: uops

Code:

  sminv s0, v0.4s
  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)03l2 tlb miss data (0b)1e3f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)696d6emap 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
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
10043037230061254725100010001000398160301830373037241432895100010002000303730371110011000015073116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
1004303722096125472510001000100039816030183037303724143289510001000200030373037111001100003073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372303612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  sminv s0, v0.4s
  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)03mmu table walk data (08)0e18191e3f4e51schedule 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)696b6d6emap 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)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
102043003722502000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
102043003722500000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000078511611296330100001003003830038300383003830038
102043003722500000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
1020430037225000001032954725101001001000010010000500427716030018030037300372826832874510100204100002002000030037300371110201100991001001000010002128298071011622296640100001003003830038300383003830038
1020430037225000012612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300852110201100991001001000010000000071011611296330100001003003830038300383003830038
1020430037225100001032954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
102043003722500000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
102043003722400210612954725101001001000010010000500427716030018030037300372826432874510426200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
102043003722500000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038
102043003722500000612954725101001001000010010000500427716030018030037300372826432874510100200100002002000030037300371110201100991001001000010000000071011611296330100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)0309181e3f4e51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
100243003722400061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295474310018101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722500061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038
100243003722400061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000640216222962910000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  sminv s0, v8.4s
  sminv s1, v8.4s
  sminv s2, v8.4s
  sminv s3, v8.4s
  sminv s4, v8.4s
  sminv s5, v8.4s
  sminv s6, v8.4s
  sminv s7, v8.4s
  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 data (08)1e3f51schedule 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)simd prf full (72)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
8020420068150063302580108100800081008002050064013220020200392003999770699908012020080032200160064200882003911802011009910010080000100011151180160020036800001002004020040200402004020040
8020420039150018302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100211151180160120036800001002004020040200402004020040
8020420039150066302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
802042003915000302580108100800081008002050064013220020200392003999777699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
802042003915000302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
8020420039150054302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
8020420039150045302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
802042003915000302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
8020420090150054302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040
802042003915000302580108100800081008002050064013220020200392003999770699908012020080032200160064200392003911802011009910010080000100011151180160020036800001002004020040200402004020040

1000 unrolls and 10 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)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)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242005015042402580010108000010800005064000012002020039200399996310019800102080000201600002003920039118002110910108000010000050201316652003680000102004020040200402004020040
800242003915004025800101080000108000050640000120020200392003999963100198001020800002016000020039200391180021109101080000100000502011161152003680000102004020040200402004020040
80024200391506340258001010800001080000506400001200202003920039999631001980010208000020160000200392003911800211091010800001000005020416552003680000102004020040200402004020040
80024200391505740258001010800001080000506400001200202003920039999631001980010208000020160000200392003911800211091010800001000005020516642003680000102004020040200402004020040
8002420039150454025800101080000108000050640000120020200392003999963100198001020800002016000020039200391180021109101080000100000502011161262003680000102004020040200402004020040
8002420039150040258001010800001080000506400001200202003920039999631001980010208000020160000200392003911800211091010800001000005020616662003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002020039200399996310019800102080000201600002003920039118002110910108000010000050203161162003680000102004020040200402004020040
8002420039150040258001010800001080000506400001200202003920039999631001980010208000020160000200392003911800211091010800001000005020416452003680000102004020040200402004020040
80024200391503640258001010800001080000506400001200202003920039999631001980010208000020160000200392003911800211091010800001000005020516742003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002020039200399993310019800102080000201600002003920039118002110910108000010000050204161272003680000102004020040200402004020040