VPCOMPRESSD (ZMM, K, ZMM) - Throughput and Uops (IACA 3.0)

With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 5.87 Cycles       Throughput Bottleneck: Backend
Loop Count:  48
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.0     0.0  |  0.0  |  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   |
-----------------------------------------------------------------------------------------
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm0{k1}, zmm1
Total Num Of Uops: 2

With 16 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 31.89 Cycles       Throughput Bottleneck: Backend
Loop Count:  22
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  | 32.0  |  0.0  |  0.0  |
--------------------------------------------------------------------------------------------------

| Num Of   |                    Ports pressure in cycles                         |      |
|  Uops    |  0  - DV    |  1   |  2  -  D    |  3  -  D    |  4   |  5   |  6   |  7   |
-----------------------------------------------------------------------------------------
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm0{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm2{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm3{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm4{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm5{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm6{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm7{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm8{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm9{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm10{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm11{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm12{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm16{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm17{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm18{k1}, zmm1
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm19{k1}, zmm1
Total Num Of Uops: 32

With the same register for for different operands

Throughput Analysis Report
--------------------------
Block Throughput: 5.87 Cycles       Throughput Bottleneck: Backend
Loop Count:  48
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.0     0.0  |  0.0  |  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   |
-----------------------------------------------------------------------------------------
|   2      |             |      |             |             |      | 2.0  |      |      | vpcompressd zmm0{k1}, zmm0
Total Num Of Uops: 2