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, 16B)

Test 1: uops

Code:

  sminv b0, v0.16b
  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)18191e1f3f4e51schedule 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 tlb access (a0)l1d tlb miss (a1)st unit uop (a7)l1d cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100430372300000612547251000100010003981601301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
100430372300000612547251000100010003981601301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
100430372300060612547251000100010003981600301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
1004303722000006125472510001000100039816003018303730372414328951000100020003037303711100110000000045073216222629100030383038303830383038
100430372200000612547251000100010003981600301830373037241432895100010002000303730371110011000000006073216222629100030383038303830383038
100430372300000612547251000100010003981600301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
1004303723000120612547251000100010003981600301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
100430372300000612547251000100010003981600301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
100430372200000612547251000100010003981601301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038
100430372300060612547251000100010003981600301830373037241432895100010002000303730371110011000000000073216222629100030383038303830383038

Test 2: Latency 1->2

Code:

  sminv b0, v0.16b
  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)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 cache writeback (a8)acbranch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001000307101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730084111020110099100100100001001307101161129633100001003003830038300383003830038
102043003722500103295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001001307101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001001607101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300543003730037282643287451010020010000200200003003730037111020110099100100100001003007101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001001307101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001000607101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001001907101161129633100001003003830038300383003830038
10204300372250061295472510100100100001001000050042771601300183003730037282643287451010020010000200200003003730037111020110099100100100001002307101161129633100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)03mmu table walk data (08)09l2 tlb miss data (0b)18191e1f3f4e51schedule 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)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
100243003722400000006129547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100000306402162229629010000103003830038300383003830038
100243017922500000006129547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100010306402162229629010000103003830038300383003830038
1002430037225000000061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000220006402162229629010000103003830038300383003830038
100243003722500000006129547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100010306402162229629010000103003830038300383003830038
1002430037225000000061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000380006402162229629010000103003830038300383003830038
100243003722500000006129547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100010306402162229629010000103003830038300383003830038
100243003722500000006129547251001810100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100000606402162229629010000103003830038300383003830038
100243003722400000006129547251001010100001010000504277160030018300373003728286328767100102010000202000030037300371110021109101010000100000306402162229629010000103003830038300383003830038
1002430037225000000094329547251001010100001010000504277160130018300373003728286328767100102010000202000030037300371110021109101010000100010306402162229629010000103003830038300383003830038
1002430037225000000061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000101206402162229629010000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  sminv b0, v8.16b
  sminv b1, v8.16b
  sminv b2, v8.16b
  sminv b3, v8.16b
  sminv b4, v8.16b
  sminv b5, v8.16b
  sminv b6, v8.16b
  sminv b7, v8.16b
  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)03l2 tlb miss data (0b)181e3f51schedule 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)acc2branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)dde0? simd retires (ee)? int retires (ef)f5f6f7f8fd
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010000001115118216020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010000001115118016020036800001002004020040200402004020040
802042003915004030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010040001115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010001001115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010002001115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010000001115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010000001215118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010001001115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010001301115118016020036800001002004020040200402004020040
802042003915000030258010810080008100800205006401320200202003920039997769990801202008003220016006420039200391180201100991001008000010001301115118016020036800001002004020040200402004020040

1000 unrolls and 10 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)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 cache writeback (a8)acbranch cond mispred nonspec (c5)cfl1i cache miss demand (d3)d5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80024200511500040258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200151611112003680000102004020040200402004020040
80024200391500040258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200121611122003680000102004020040200402004020040
800242003915000104258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200121613112003680000102004020040200402004020040
80024201441500040258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001003050200121611112003680000102004020040200402004020040
8002420039150004025800101080000108000050640000200200200392003999963100198001020800002016000020039200391180021109101080000100005020013161292003680000102004020040200402004020040
80024200391500040258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001030050200121613132003680000102004020040200402004020040
800242003915000402580010108000010800005064000020020020039200399996310019800102080000201600002003920039118002110910108000010110050200131613122003680000102004020040200402004020040
800242003915000230258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200131612122003680000102004020040200402004020040
80024200391500040258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200111613112003680000102004020040200402004020040
80024200391500084258001010800001080000506400002002002003920039999631001980010208000020160000200392003911800211091010800001000050200111611132003680000102004020040200402004020040