VADDPD (XMM, XMM, M128) - Throughput and Uops (IACA 3.0)


With a non-indexed addressing mode

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.51 Cycles       Throughput Bottleneck: Backend
Loop Count:  66
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.5     0.0  |  0.5  |  0.5     0.5  |  0.5     0.5  |  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   |
-----------------------------------------------------------------------------------------
|   2^     | 0.5         | 0.5  | 0.5     0.5 | 0.5     0.5 |      |      |      |      | vaddpd xmm0, xmm1, xmmword ptr [r14]
Total Num Of Uops: 2

With 12 independent instructions


Throughput Analysis Report
--------------------------
Block Throughput: 6.00 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 |  6.0     0.0  |  6.0  |  6.0     6.0  |  6.0     6.0  |  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   |
-----------------------------------------------------------------------------------------
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm0, xmm1, xmmword ptr [r14]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm2, xmm1, xmmword ptr [r14+0x10]
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm3, xmm1, xmmword ptr [r14+0x20]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm4, xmm1, xmmword ptr [r14+0x30]
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm5, xmm1, xmmword ptr [r14+0x40]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm6, xmm1, xmmword ptr [r14+0x50]
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm7, xmm1, xmmword ptr [r14+0x60]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm8, xmm1, xmmword ptr [r14+0x70]
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm9, xmm1, xmmword ptr [r14+0x80]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm10, xmm1, xmmword ptr [r14+0x90]
|   2^     | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm11, xmm1, xmmword ptr [r14+0xa0]
|   2^     |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm12, xmm1, xmmword ptr [r14+0xb0]
Total Num Of Uops: 24

With an indexed addressing mode

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.51 Cycles       Throughput Bottleneck: FrontEnd
Loop Count:  44
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.5     0.0  |  0.5  |  0.5     0.5  |  0.5     0.5  |  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   |
-----------------------------------------------------------------------------------------
|   2      | 0.5         | 0.5  | 0.5     0.5 | 0.5     0.5 |      |      |      |      | vaddpd xmm0, xmm1, xmmword ptr [r14+r13*1]
Total Num Of Uops: 2

With 12 independent instructions


Throughput Analysis Report
--------------------------
Block Throughput: 6.00 Cycles       Throughput Bottleneck: Dependency chains
Loop Count:  22
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  6.0     0.0  |  6.0  |  6.0     6.0  |  6.0     6.0  |  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   |
-----------------------------------------------------------------------------------------
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm0, xmm1, xmmword ptr [r14+r13*1]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm2, xmm1, xmmword ptr [r14+r13*1+0x10]
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm3, xmm1, xmmword ptr [r14+r13*1+0x20]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm4, xmm1, xmmword ptr [r14+r13*1+0x30]
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm5, xmm1, xmmword ptr [r14+r13*1+0x40]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm6, xmm1, xmmword ptr [r14+r13*1+0x50]
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm7, xmm1, xmmword ptr [r14+r13*1+0x60]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm8, xmm1, xmmword ptr [r14+r13*1+0x70]
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm9, xmm1, xmmword ptr [r14+r13*1+0x80]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm10, xmm1, xmmword ptr [r14+r13*1+0x90]
|   2      | 1.0         |      | 1.0     1.0 |             |      |      |      |      | vaddpd xmm11, xmm1, xmmword ptr [r14+r13*1+0xa0]
|   2      |             | 1.0  |             | 1.0     1.0 |      |      |      |      | vaddpd xmm12, xmm1, xmmword ptr [r14+r13*1+0xb0]
Total Num Of Uops: 24