XADD_LOCK (M32, R32) - Latency


Operands


Latency operand 1 → 1 (address, base register): ≤45

Latency operand 1 → 1 (address, index register): ≤45

Latency operand 1 → 1 (memory): 20

Latency operand 1 → 2 (address, base register): 13

Latency operand 1 → 2 (address, index register): 13

Latency operand 1 → 2 (memory): ≤20

Latency operand 1 → 3 (address, base register): 19

Latency operand 1 → 3 (address, index register): 19

Latency operand 1 → 3 (memory): ≤20

Latency operand 2 → 1: ≤32

Latency operand 2 → 2: 13

Latency operand 2 → 3: 13


Latency operand 1 → 1 (address, base register): ≤45

Experiment 1

Experiment 2 (with additional nop)


Latency operand 1 → 1 (address, index register): ≤45

Experiment 1

Experiment 2 (with additional nop)


Latency operand 1 → 1 (memory): 20

Experiment 1

Experiment 2 (with dependency-breaking instructions)

Experiment 3

Experiment 4 (with dependency-breaking instructions)


Latency operand 1 → 2 (address, base register): 13

Experiment 1


Latency operand 1 → 2 (address, index register): 13

Experiment 1


Latency operand 1 → 2 (memory): ≤20

Experiment 1


Latency operand 1 → 3 (address, base register): 19

Experiment 1

Experiment 2 (with dependency-breaking instructions)

Experiment 3

Experiment 4 (with dependency-breaking instructions)

Experiment 5

Experiment 6 (with dependency-breaking instructions)

Experiment 7

Experiment 8 (with dependency-breaking instructions)

Experiment 9

Experiment 10 (with dependency-breaking instructions)


Latency operand 1 → 3 (address, index register): 19

Experiment 1

Experiment 2 (with dependency-breaking instructions)

Experiment 3

Experiment 4 (with dependency-breaking instructions)

Experiment 5

Experiment 6 (with dependency-breaking instructions)

Experiment 7

Experiment 8 (with dependency-breaking instructions)

Experiment 9

Experiment 10 (with dependency-breaking instructions)


Latency operand 1 → 3 (memory): ≤20

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5


Latency operand 2 → 1: ≤32

Experiment 1


Latency operand 2 → 2: 13

Experiment 1

Experiment 2

Experiment 3 (with dependency-breaking instructions)


Latency operand 2 → 3: 13

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5