RCPSS (XMM, XMM) - Throughput and Uops (IACA 3.0)

With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.98 Cycles       Throughput Bottleneck: Dependency chains
Loop Count:  64
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  1.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.0  |  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         |      |             |             |      |      |      |      | rcpss xmm0, xmm1
Total Num Of Uops: 1

With 12 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 11.95 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 | 12.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.0  |  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         |      |             |             |      |      |      |      | rcpss xmm0, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm2, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm3, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm4, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm5, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm6, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm7, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm8, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm9, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm10, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm11, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm12, xmm1
Total Num Of Uops: 12

With the same register for for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 3.95 Cycles       Throughput Bottleneck: Backend
Loop Count:  81
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  1.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.0  |  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         |      |             |             |      |      |      |      | rcpss xmm0, xmm0
Total Num Of Uops: 1

With 13 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 12.95 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 | 13.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.0  |  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         |      |             |             |      |      |      |      | rcpss xmm0, xmm0
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm1, xmm1
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm2, xmm2
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm3, xmm3
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm4, xmm4
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm5, xmm5
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm6, xmm6
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm7, xmm7
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm8, xmm8
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm9, xmm9
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm10, xmm10
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm11, xmm11
|   1      | 1.0         |      |             |             |      |      |      |      | rcpss xmm12, xmm12
Total Num Of Uops: 13