LOOPNE (Rel8)

Operands

• Operand 1 (r):
• Operand 2 (r/w, suppressed): Register (RCX)
• Operand 3 (r/w, suppressed): Register (RIP)
• Operand 4 (r, suppressed): Flags (ZF: r)

Available performance data

• Alder Lake-P
• Alder Lake-E
• Rocket Lake
• Tiger Lake
• Ice Lake
• Cascade Lake
• Cannon Lake
• Skylake-X
• Coffee Lake
• Kaby Lake
• Skylake
• Broadwell
• Haswell
• Ivy Bridge
• Sandy Bridge
• Westmere
• Nehalem
• Wolfdale
• Conroe
• Tremont
• Goldmont Plus
• Goldmont
• Airmont
• Bonnell
• AMD Zen 4
• AMD Zen 3
• AMD Zen 2
• AMD Zen+

Alder Lake-P

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 1
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 5.97
• Number of μops
  • Executed: 10
  • Retire slots: 12
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 8
• Port usage: 3*p0156B+6*p06+1*p1

Alder Lake-E

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 8
  • Microcode Sequencer (MS): 7

Rocket Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 12
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 8
• Port usage: 4*p0156+6*p06+1*p1

Tiger Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 12
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 8
• Port usage: 4*p0156+6*p06+1*p1

Ice Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 12
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 8
• Port usage: 4*p0156+6*p06+1*p1

Cascade Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1

Cannon Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 3
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1

Skylake-X

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.62
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.42
• Number of μops: 11
• Port usage: 9*p0156+2*p06

Coffee Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1

Kaby Lake

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1

Skylake

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 1
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 1*p015+3*p0156+6*p06+1*p1
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.62
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.42
• Number of μops: 11
• Port usage: 9*p0156+2*p06

Broadwell

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 1
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.05
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 2*p015+2*p0156+6*p06+1*p1
• IACA 2.2
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 11.00 (with the -no_interiteration flag: 8.14)
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.57
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.42
• Number of μops: 11
• Port usage: 9*p0156+2*p06

Haswell

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 2*p015+2*p0156+6*p06+1*p1
• IACA 2.2
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 11.05 (with the -no_interiteration flag: 7.62)
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.62
• Number of μops: 11
• Port usage: 9*p0156+2*p06
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.75
  • IACA: 10.42
• Number of μops: 11
• Port usage: 9*p0156+2*p06

Ivy Bridge

• Measurements
• Latencies
  • Latency operand 2 → 2: 4
  • Latency operand 4 → 2: 4
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 6.00
  • Measured (unrolled): 5.91
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 5*p015+2*p05+1*p1+3*p5
• IACA 2.1
• Latency: 1
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00
• Number of μops: 1
• Port usage: 1*p5

Sandy Bridge

• Measurements
• Latencies
  • Latency operand 2 → 2: 4
  • Latency operand 4 → 2: 3
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 7
• Port usage: 5*p015+2*p05+1*p1+3*p5
• IACA 2.1
• Latency: 1
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00
• Number of μops: 1
• Port usage: 1*p5

Westmere

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 8.00
  • Measured (unrolled): 8.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Microcode Sequencer (MS): 22
• Port usage: 6*p015+3*p05+2*p5
• IACA 2.1
• Latency: 1
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5

Nehalem

• Measurements
• Latencies
  • Latency operand 2 → 2: 3
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 8.00
  • Measured (unrolled): 8.00
• Number of μops
  • Executed: 11
  • Retire slots: 11
  • Microcode Sequencer (MS): 22
• Port usage: 6*p015+3*p05+2*p5
• IACA 2.1
• Latency: 1
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 1
• Port usage: 1*p5

Wolfdale

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 6.00
  • Measured (unrolled): 6.03
• Number of μops
  • Executed: 11
• Port usage: 7*p015+1*p05+1*p1+2*p5

Conroe

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Computed from the port usage: 3.67
  • Measured (loop): 6.00
  • Measured (unrolled): 6.08
• Number of μops
  • Executed: 11
• Port usage: 7*p015+1*p05+1*p1+2*p5

Tremont

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 9
  • Microcode Sequencer (MS): 8

Goldmont Plus

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Measured (loop): 12.00
  • Measured (unrolled): 12.00
• Number of μops
  • Executed: 9
  • Microcode Sequencer (MS): 9

Goldmont

• Measurements
• Latencies
  • Latency operand 2 → 2: 2
  • Latency operand 4 → 2: 2
• Throughput
  • Measured (loop): 12.03
  • Measured (unrolled): 12.00
• Number of μops
  • Executed: 9
  • Microcode Sequencer (MS): 9

Airmont

• Measurements
• Latencies
  • Latency operand 2 → 2: 4
  • Latency operand 4 → 2: 4
• Throughput
  • Measured (loop): 13.00
  • Measured (unrolled): 12.98
• Number of μops
  • Executed: 8
  • Microcode Sequencer (MS): 8

Bonnell

• Measurements
• Latencies
  • Latency operand 2 → 2: 7
  • Latency operand 4 → 2: 7
• Throughput
  • Measured (loop): 11.00
  • Measured (unrolled): 11.00
• Number of μops
  • Executed: 8
  • Microcode Sequencer (MS): 8

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 2 → 2: 1
  • Latency operand 4 → 2: 1
• Throughput
  • Measured (loop): 0.50
  • Measured (unrolled): 0.56
• Number of μops
  • Executed: 1

AMD Zen 3

• Measurements
• Latencies
  • Latency operand 2 → 2: 1
  • Latency operand 4 → 2: 1
• Throughput
  • Measured (loop): 0.50
  • Measured (unrolled): 0.56
• Number of μops
  • Executed: 1
• Documentation
• Latency: 1
• Throughput: 0.50
• Number of μops: 1
• Port usage: BRU

AMD Zen 2

• Measurements
• Latencies
  • Latency operand 2 → 2: 1
  • Latency operand 4 → 2: 1
• Throughput
  • Measured (loop): 0.57
  • Measured (unrolled): 0.56
• Number of μops
  • Executed: 1
• Documentation
• Latency: 1
• Throughput: 0.50
• Number of μops: 1
• Port usage: ALU0/ALU3

AMD Zen+

• Measurements
• Latencies
  • Latency operand 2 → 2: 1
  • Latency operand 4 → 2: 1
• Throughput
  • Measured (loop): 0.70
  • Measured (unrolled): 0.56
• Number of μops
  • Executed: 1
• Documentation
• Latency: 1
• Throughput: 0.50
• Number of μops: 1
• Port usage: ALU0/ALU3