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, 4H)

Test 1: uops

Code:

  sminv h0, v0.4h
  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)031e1f3f4e51schedule 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
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000973116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
1004303723120612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372300612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038
100430372200612547251000100010003981603018303730372414328951000100020003037303711100110000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  sminv h0, v0.4h
  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)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 cache writeback (a8)accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001007007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001003007101161129633100001003003830038300383003830038
10204300372250124295472510100100100001001000050042771603001830037300372826432874510100200100002002000030037300371110201100991001001000010046607101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001005007101161129633100001003003830038300383003830038
102043003722406129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001000007101161129633100001003003830038300383003830038
102043003722506129547251010010010000100100005004277160300183003730037282643287451010020010000200200003003730037111020110099100100100001003017102161129633100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

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)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)9fst unit uop (a7)l1d cache writeback (a8)acc2branch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0ea? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024300372240612954725100101010000101014850427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162229629010000103003830038300383003830038
10024300372240612954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162229629210000103003830038300383003830038
10024300372250612954725100101010000101014850427716003001830037300372828632876710010201018020200003003730037111002110910101000010000006402162229629010000103003830038300383003830038
100243003722472612954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162329629010000103003830038300383003830038
10024300372250612954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162329629010000103003830038300383003830038
10024300372240842954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162229629010000103003830038300383003830038
100243003722501702954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162329629010000103003830038300383003830038
100243003722501912954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162229629010000103003830038300383003830038
10024300372240612954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162329629010000103003830038300383003830038
100243003722502322954725100101010000101000050427716003001830037300372828632876710010201000020200003003730037111002110910101000010000006402162329629010000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  sminv h0, v8.4h
  sminv h1, v8.4h
  sminv h2, v8.4h
  sminv h3, v8.4h
  sminv h4, v8.4h
  sminv h5, v8.4h
  sminv h6, v8.4h
  sminv h7, v8.4h
  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)191e3f51schedule 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)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
802042005815000005125801081008000810080020500640132120020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161220036800001002004020040200402004020040
802042003915011003025801081008000810080020500640132020020200392003999776999080120200800322001600642003920064118020110099100100800001000011151181161120036800001002004020040200402004020040
8020420039150110022925801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
802042003915011003025801081008000810080020500640132020020200392003999776999080120200800322001600642003920088118020110099100100800001000011151181161220036800001002004020040200402004020040
8020420039150110020225801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
8020420039150110054125801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
802042003915011009325801081008000810080020500640132020020200392003999776999080120200801402001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
80204200391501100121025801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
802042003915011003025801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040
802042003915011003025801081008000810080020500640132020020200392003999776999080120200800322001600642003920039118020110099100100800001000011151181161120036800001002004020040200402004020040

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)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 cache writeback (a8)acbranch mispred nonspec (cb)cfd0d5map dispatch bubble (d6)daddfetch restart (de)e0ec? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242004015006432580010108000010800005064000020020200392003999963100198001020800002016000020039200391180021109101080000100005020041604420036080000102004020040200402004020040
80024200391500402580010108000010800005064000020020200392003999963100198001020800002016000020039200391180021109101080000100005020021602620036080000102004020040200402004020040
8002420039150012425800101080000108000050640000200202003920039999631001980010208000020160214200392003911800211091010800001010050200416041120036080000102004020040200402004020040
800242003915004025800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001080050200416041420036080000102004020040200402004020040
800242003915004025800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001000050200216041420036080000102004020040200402004020040
80024200391500402580010108000010800005064000020020200392003999963100198001020800002016000020039200391180021109101080000100005020041602420036080000102004020040200402004020040
800242003915004025800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001000050200416021320036080000102004020040200402004020040
8002420039150016625800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001000050200316021320036080000102004020040200402004020040
800242003915004025800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001000050200416041820036080000102004020040200402004020040
800242003915004625800101080000108000050640000200202003920039999631001980010208000020160000200392003911800211091010800001000050200416021520036080000102004020040200402004020040