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

DUP (element, scalar, D)

Test 1: uops

Code:

  dup d0, v0.d[1]
  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)031e3f4e51schedule 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)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100420371531241686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037160611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000173116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038
10042037150611686251000100010002645211201820372037157131895100010001000203720371110011000073116111786100020382038203820382038

Test 2: Latency 1->2

Code:

  dup d0, v0.d[1]
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03l2 tlb miss data (0b)181e3a3f4e51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
102042003715000016119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
102042003715000006119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
1020420037150000025119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
102042008415000006119664251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
1020420037150000053519686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
1020420037150000028319686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
1020420037150000025119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
102042003715000006119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
102042003715000006119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038
102042003715000006119686251010010010000100100005002847521120018200372003718421318745101002001000020010000200372003711102011009910010010000100000071011611197910100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk data (08)18191e3f4e51schedule 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)accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
100242003715000006119686251001010100001010000502848785020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
100242003715000006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
100242003715000006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
100242003715010006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640224221978610000102003820038200382003820038
1002420037150000010319686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010030640216221978610000102003820038200382003820038
1002420037150000010519686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
1002420037150000126119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
100242003715000006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221978610000102003820038200382003820038
100242003715000006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010200640216221978610000102003820038200382003820038
100242003715000006119686251001010100001010000502847521020018020037200371844331876710010201000020100002003720037111002110910101000010000640216221982210000102003820038200382003820038

Test 3: throughput

Count: 8

Code:

  dup d0, v8.d[1]
  dup d1, v8.d[1]
  dup d2, v8.d[1]
  dup d3, v8.d[1]
  dup d4, v8.d[1]
  dup d5, v8.d[1]
  dup d6, v8.d[1]
  dup d7, v8.d[1]
  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)03191e3f51schedule 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)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)9fld unit uop (a6)l1d 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
802042005715000712580108100800081008002050064013202001902003820038997706998980120200800322008003220038200381180201100991001008000010000311151182162120035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151182161220035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151182162220035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151182162220035800001002003920039200392003920039
802042003815000712580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151181161220035800001002003920039200392003920039
802042003815000502580108100800081008002050064013202001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151182162120035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151182162220035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010000011151181162120035800001002003920039200392003920039
8020420038150002925801081008000810080020500640132020019020038200389977069989801202008003220080032200382003811802011009910010080000100026311151181161220035800001002003920039200392003920039
802042003815000292580108100800081008002050064013212001902003820038997706998980120200800322008003220038200381180201100991001008000010001011151182162120035800001002003920039200392003920039

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03mmu table walk instruction (07)mmu table walk data (08)09l2 tlb miss instruction (0a)l2 tlb miss data (0b)18191e1f3a3f51schedule 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 tlb access (a0)l1d tlb miss (a1)st unit uop (a7)l1d cache writeback (a8)a9acc2branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8002420039150000000000040925800101080000108000050640000200192003820038999631001880010208000020800002003820038118002110910108000010000000000502024161372003580000102003920039200392003920039
80024200381500000000000602580010108000010800005064000020019200382003899963100188001020800002080000200382003811800211091010800001000000000050208161382003580000102003920039200392003920039
80024200381500000000000602580010108000010800005064000020019200382003899963100188001020800002080000200382003811800211091010800001000010000050201216982003580000102003920039200392003920039
8002420038150000000000039258001010800001080000506400002001920038200389996310018800102080000208000020038200381180021109101080000100000000005020916962003580000102003920039200392003920039
800242003815000000000006025800101080000108000050640000200192003820038999631001880010208000020800002003820038118002110910108000010000000000502010167122003580000102003920039200392003920039
8002420038150000000000081258001010800001080000506400002001920038200389996310018800102080000208000020038200381180021109101080000100003062005020111612112003580000102003920039200392003920039
80024200381500000000000301258001010800001080000506400002001920038200389996310018800102080000208000020038200381180021109101080000100000000005020816672003580000102003920039200392003920039
80024200381490000000000392580010108000010800005064000020019200382003899963100188001020800002080000200382003811800211091010800001000010000050208161192003580000102003920039200392003920039
8002420038150000000000039258001010800001080000506400002001920038200389996310018800102080000208000020038200381180021109101080000100000000005020516582003580000102003920039200392003920039
8002420038150000000000039258001010800001080000506400002001920038200389996310018800102080000208000020038200381180021109101080000100000000005020516772003580000102003920039200392003920039