VADDPS (ZMM, ZMM, ZMM) - Throughput and Uops (IACA 2.3)

With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.50 Cycles       Throughput Bottleneck: FrontEnd

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.5    0.0  | 0.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.5  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    | 0.5       |     |           |           |     | 0.5 |     |     | CP | vaddps zmm0, zmm1, zmm2
Total Num Of Uops: 1

With 16 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 8.00 Cycles       Throughput Bottleneck: Backend. Port0, Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 8.0    0.0  | 0.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 8.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm0, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm3, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm4, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm5, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm6, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm7, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm8, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm9, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm10, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm11, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm12, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm16, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm17, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm18, zmm1, zmm2
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vaddps zmm19, zmm1, zmm2
|   1    |           |     |           |           |     | 1.0 |     |     | CP | vaddps zmm20, zmm1, zmm2
Total Num Of Uops: 16

With the same register for for different operands

Throughput Analysis Report
--------------------------
Block Throughput: 3.81 Cycles       Throughput Bottleneck: FrontEnd

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.5    0.0  | 0.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.5  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    | 0.5       |     |           |           |     | 0.5 |     |     | CP | vaddps zmm0, zmm0, zmm0
Total Num Of Uops: 1