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

FRINTZ (scalar, H)

Test 1: uops

Code:

  frintz h0, h0
  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)03191e3f4e51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100430372300612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372300822547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372300612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372300612538251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372300612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372200612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372200612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
1004303723006125472510001000100039816003018303730372414328951000100010003037303711100110004273116112629100030383038303830383038
100430372300612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372300612547251000100010003981600301830373037241432895100010001000303730371110011000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  frintz h0, h0
  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)033f4e51schedule 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 cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204300372256129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101162129633100001003003830038300383003830038
10204300372256129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
10204300372256129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
10204300372256129547431010010010000100100005004277160130018300373003728264328745101002001000020010000300373013511102011009910010010000100000007101161129633100001003003830038300383003830038
102043003722572629529251010010010000100100005004277160030018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
102043003722461295472510100100100001001000050042771601300183003730037282643287451010020010000200100003003730037111020110099100100100001000007207101161129633100001003003830038300383003830038
10204300372246129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
10204300372246129547251010010010000100100005004277160130018300373003728264328745101002001016620010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
10204300372256129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038
10204300372256129547251010010010000100100005004277160130018300373003728264328745101002001000020010000300373003711102011009910010010000100000007101161129633100001003003830038300383003830038

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)9fld unit uop (a6)l1d cache writeback (a8)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002430037225126129547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100030640216222962910000103003830038300383003830038
10024300372251210329547251001010100001010000504277160030018300373003728286328767100102010000201000030037300371110021109101010000100130640216222962910000103003830038300383003830038
10024300372251210329547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100130640216222962910000103003830038300383003830038
1002430037225126129547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100130640216222962910000103003830038300383003830038
10024300372241210329547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100000640216222962910000103003830038300383003830038
1002430037225127262954725100101010000101000050427716013001830037300372828632876710010201000020100003003730037111002110910101000010032220640216222962910000103003830038300383003830038
10024300372251210329547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100130640216222962910000103003830038300383003830038
1002430037225126129547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100030640216222962910000103003830038300383003830038
10024300372251210329547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100130640216222962910000103003830038300383003830038
10024300372251210329547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100100640216222962910000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  frintz h0, h8
  frintz h1, h8
  frintz h2, h8
  frintz h3, h8
  frintz h4, h8
  frintz h5, h8
  frintz h6, h8
  frintz h7, h8
  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)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)acc2branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
802042005815023025801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180160020036800001002004020040200402004020040
802042003915003025801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010000011151181160120036800001002004020040200402004020040
802042003915003025801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180161020036800001002004020040200402004020040
802042003915005325801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010003011151180161020036800001002004020040200402004020040
802042003915003025801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180160020036800001002004020040200402004020040
8020420039150013925801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180160020036800001002004020040200402004020040
802042003915005125801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180160020036800001002004020040200402004020040
802042003915007225801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180161020036800001002004020040200402004020040
8020420039149044525801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180161020036800001002004020040200402004020040
8020420039150033825801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000011151180160020036800001002004020040200402004020040

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)1e1f3f51schedule 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)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8002420050150012014925800101080000108000050640000020020200392003999963100198001020800002080000200392003911800211091010800001013050202161362003680000102004020040200402004020040
80024200391500120822580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000101305020316832003680000102004020040200402004020040
80024200391500008625800101080000108000050640000020020200392003999963100198001020800002080000200392003911800211091010800001013050203161072003680000102004020040200402004020040
800242003915001201702580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000100005020416962003680000102004020040200402004020040
800242003915001205782580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000101305020416372008680000102004020040200402004020040
80024200391500003892580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000100005020416542003680000102004020040200402004020040
800242003915001201452580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000101005020416642003680000102004020040200402004020040
800242003915001201452580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000101005020416462003680000102004020040200402004020040
800242003915001201912580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000101305020416642003680000102004020040200402004020040
800242003915001201872580010108000010800005064000002002020039200399996310019800102080000208000020039200391180021109101080000100305020416722003680000102004020040200402004020040