MOVQ_0F7E (XMM, XMM) - Throughput and Uops (IACA 2.1)


With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.35 Cycles       Throughput Bottleneck: Port1, Port5

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 0.3    0.0  | 0.3  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.3  |
-------------------------------------------------------------------------


| Num Of |              Ports pressure in cycles               |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |    |
---------------------------------------------------------------------
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm0, xmm1
Total Num Of Uops: 1

With 12 independent instructions


Throughput Analysis Report
--------------------------
Block Throughput: 4.00 Cycles       Throughput Bottleneck: Port0, Port1, Port5

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 4.0    0.0  | 4.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 4.0  |
-------------------------------------------------------------------------


| Num Of |              Ports pressure in cycles               |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |    |
---------------------------------------------------------------------
|   1    | 1.0       |     |           |           |     |     | CP | movq xmm0, xmm1
|   1    |           | 1.0 |           |           |     |     | CP | movq xmm2, xmm1
|   1    |           |     |           |           |     | 1.0 | CP | movq xmm3, xmm1
|   1    | 1.0       |     |           |           |     |     | CP | movq xmm4, xmm1
|   1    |           | 1.0 |           |           |     |     | CP | movq xmm5, xmm1
|   1    |           |     |           |           |     | 1.0 | CP | movq xmm6, xmm1
|   1    | 1.0       |     |           |           |     |     | CP | movq xmm7, xmm1
|   1    |           | 1.0 |           |           |     |     | CP | movq xmm8, xmm1
|   1    |           |     |           |           |     | 1.0 | CP | movq xmm9, xmm1
|   1    | 1.0       |     |           |           |     |     | CP | movq xmm10, xmm1
|   1    |           | 1.0 |           |           |     |     | CP | movq xmm11, xmm1
|   1    |           |     |           |           |     | 1.0 | CP | movq xmm12, xmm1
Total Num Of Uops: 12

With the same register for for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 1.00 Cycles       Throughput Bottleneck: InterIteration

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 0.3    0.0  | 0.3  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.3  |
-------------------------------------------------------------------------


| Num Of |              Ports pressure in cycles               |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |    |
---------------------------------------------------------------------
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm0, xmm0
Total Num Of Uops: 1

With 13 independent instructions


Throughput Analysis Report
--------------------------
Block Throughput: 4.35 Cycles       Throughput Bottleneck: Port0, Port1, Port5

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 4.3    0.0  | 4.3  | 0.0    0.0  | 0.0    0.0  | 0.0  | 4.3  |
-------------------------------------------------------------------------


| Num Of |              Ports pressure in cycles               |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |    |
---------------------------------------------------------------------
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm0, xmm0
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm1, xmm1
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm2, xmm2
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm3, xmm3
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm4, xmm4
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm5, xmm5
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm6, xmm6
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm7, xmm7
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm8, xmm8
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm9, xmm9
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm10, xmm10
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm11, xmm11
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm12, xmm12
Total Num Of Uops: 13

With the -no_interiteration flag

Throughput Analysis Report
--------------------------
Block Throughput: 0.35 Cycles       Throughput Bottleneck: Port1, Port5

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 0.3    0.0  | 0.3  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.3  |
-------------------------------------------------------------------------


| Num Of |              Ports pressure in cycles               |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |    |
---------------------------------------------------------------------
|   1    | 0.3       | 0.3 |           |           |     | 0.3 | CP | movq xmm0, xmm1
Total Num Of Uops: 1