VPHADDD (YMM, YMM, YMM) - Throughput and Uops (IACA 2.2)

With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 2.00 Cycles       Throughput Bottleneck: Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 1.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 2.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 3

With 11 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 22.00 Cycles       Throughput Bottleneck: Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 11.0 | 0.0    0.0  | 0.0    0.0  | 0.0  | 22.0 | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm3, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm4, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm5, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm6, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm7, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm8, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm9, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm10, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm11, ymm1, ymm2
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm12, ymm1, ymm2
Total Num Of Uops: 33

With the same register for for different operands

Throughput Analysis Report
--------------------------
Block Throughput: 3.00 Cycles       Throughput Bottleneck: Dependency chains (possibly between iterations)

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 1.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 2.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm0, ymm0
Total Num Of Uops: 3

With the -no_interiteration flag

Throughput Analysis Report
--------------------------
Block Throughput: 2.00 Cycles       Throughput Bottleneck: Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 1.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 2.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 3