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
Code:
dup v0.8h, w0
mov x0, 1 mov x1, 2
(no loop instructions)
Retires: 2.000
Issues: 2.000
Integer unit issues: 0.001
Load/store unit issues: 1.000
SIMD/FP unit issues: 1.000
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | schedule simd uop (54) | schedule ldst uop (55) | dispatch simd uop (57) | dispatch ldst uop (58) | simd uops in schedulers (5a) | ldst uops in schedulers (5b) | dispatch uop (78) | map ldst uop (7d) | map simd uop (7e) | map ldst uop inputs (80) | map simd uop inputs (81) | ? int output thing (e9) | ? ldst retires (ed) | ? simd retires (ee) |
2004 | 578 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 537 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
2004 | 536 | 2001 | 1 | 1000 | 1000 | 1000 | 1000 | 3000 | 8000 | 2000 | 1000 | 1000 | 1000 | 1000 | 1 | 1000 | 1000 |
Code:
dup v0.8h, w0 fmov x0, d0
mov x0, 1 mov x1, 2
(fused SUBS/B.cc loop)
Result (median cycles for code): 9.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | schedule simd uop (54) | schedule ldst uop (55) | dispatch int uop (56) | dispatch simd uop (57) | dispatch ldst uop (58) | int uops in schedulers (59) | simd uops in schedulers (5a) | ldst uops in schedulers (5b) | dispatch uop (78) | map int uop (7c) | map ldst uop (7d) | map simd uop (7e) | map int uop inputs (7f) | map ldst uop inputs (80) | map simd uop inputs (81) | ? int output thing (e9) | ? ldst retires (ed) | ? simd retires (ee) | ? int retires (ef) |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10001 | 300 | 1376322 | 2318460 | 30101 | 200 | 10002 | 20004 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90035 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376425 | 2318616 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30205 | 90063 | 40108 | 10103 | 20003 | 10002 | 100 | 20029 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30205 | 90063 | 40108 | 10103 | 20003 | 10002 | 100 | 20029 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10000 | 300 | 1376328 | 2318460 | 30100 | 200 | 10002 | 20002 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
30204 | 90030 | 40101 | 10101 | 20000 | 10000 | 100 | 20000 | 10017 | 300 | 1377568 | 2320477 | 30146 | 200 | 10021 | 20039 | 200 | 10002 | 20002 | 10001 | 10000 | 10000 | 10100 |
Result (median cycles for code): 9.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | schedule simd uop (54) | schedule ldst uop (55) | dispatch int uop (56) | dispatch simd uop (57) | dispatch ldst uop (58) | int uops in schedulers (59) | simd uops in schedulers (5a) | ldst uops in schedulers (5b) | dispatch uop (78) | map int uop (7c) | map ldst uop (7d) | map simd uop (7e) | map int uop inputs (7f) | map ldst uop inputs (80) | map simd uop inputs (81) | ? int output thing (e9) | ? ldst retires (ed) | ? simd retires (ee) | ? int retires (ef) |
30024 | 90034 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376320 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30025 | 90063 | 40018 | 10013 | 20003 | 10002 | 10 | 20029 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30025 | 90114 | 40018 | 10013 | 20003 | 10002 | 10 | 20029 | 10000 | 30 | 1376445 | 2318642 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30025 | 90100 | 40018 | 10013 | 20003 | 10002 | 10 | 20029 | 10000 | 30 | 1376931 | 2319422 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376328 | 2318460 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
30024 | 90030 | 40011 | 10011 | 20000 | 10000 | 10 | 20000 | 10000 | 30 | 1376376 | 2318538 | 30010 | 20 | 10000 | 20000 | 20 | 10000 | 20000 | 10001 | 10000 | 10000 | 10010 |
Count: 8
Code:
dup v0.8h, w8 dup v1.8h, w8 dup v2.8h, w8 dup v3.8h, w8 dup v4.8h, w8 dup v5.8h, w8 dup v6.8h, w8 dup v7.8h, w8
mov x8, 9
(fused SUBS/B.cc loop)
Result (median cycles for code divided by count): 0.5011
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | schedule simd uop (54) | schedule ldst uop (55) | dispatch int uop (56) | dispatch simd uop (57) | dispatch ldst uop (58) | int uops in schedulers (59) | simd uops in schedulers (5a) | ldst uops in schedulers (5b) | dispatch uop (78) | map int uop (7c) | map ldst uop (7d) | map simd uop (7e) | map int uop inputs (7f) | map ldst uop inputs (80) | map simd uop inputs (81) | ? int output thing (e9) | ? ldst retires (ed) | ? simd retires (ee) | ? int retires (ef) |
160204 | 40141 | 160117 | 101 | 80007 | 80009 | 100 | 80013 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
160204 | 40090 | 160115 | 101 | 80006 | 80008 | 100 | 80012 | 80012 | 300 | 240036 | 640080 | 160124 | 200 | 80012 | 80012 | 200 | 80012 | 80012 | 1 | 80000 | 80000 | 100 |
Result (median cycles for code divided by count): 0.5006
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | schedule simd uop (54) | schedule ldst uop (55) | dispatch int uop (56) | dispatch simd uop (57) | dispatch ldst uop (58) | int uops in schedulers (59) | simd uops in schedulers (5a) | ldst uops in schedulers (5b) | dispatch uop (78) | map int uop (7c) | map ldst uop (7d) | map simd uop (7e) | map int uop inputs (7f) | map ldst uop inputs (80) | map simd uop inputs (81) | ? int output thing (e9) | ? ldst retires (ed) | ? simd retires (ee) | ? int retires (ef) |
160024 | 40543 | 160021 | 11 | 80003 | 80007 | 10 | 80012 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40060 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 308544 | 728543 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40145 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 263847 | 663847 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40062 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 244446 | 644430 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |
160024 | 40045 | 160011 | 11 | 80000 | 80000 | 10 | 80000 | 80000 | 30 | 240000 | 640000 | 160010 | 20 | 80000 | 80000 | 20 | 80000 | 80000 | 1 | 80000 | 80000 | 10 |