ADD (M8, I8) - Throughput and Uops (IACA 3.0)
With a non-indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 1.00 Cycles Throughput Bottleneck: Backend
Loop Count: 36
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 0.3 0.0 | 0.2 | 0.7 0.7 | 0.7 0.7 | 1.0 | 0.2 | 0.2 | 0.7 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 4^ | 0.3 | 0.2 | 0.7 0.7 | 0.7 0.7 | 1.0 | 0.2 | 0.2 | 0.7 | add byte ptr [r14], 0x2
Total Num Of Uops: 4
With 16 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 16.00 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 | 4.0 0.0 | 4.0 | 10.7 10.7 | 10.6 10.6 | 16.0 | 4.0 | 4.0 | 10.7 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 4^ | 1.0 | | 0.7 0.7 | 0.6 0.6 | 1.0 | | | 0.7 | add byte ptr [r14], 0x2
| 4^ | | 1.0 | 0.6 0.6 | 0.7 0.7 | 1.0 | | | 0.7 | add byte ptr [r14+0x1], 0x2
| 4^ | | | 0.7 0.7 | 0.7 0.7 | 1.0 | 1.0 | | 0.6 | add byte ptr [r14+0x2], 0x2
| 4^ | | | 0.7 0.7 | 0.6 0.6 | 1.0 | | 1.0 | 0.7 | add byte ptr [r14+0x3], 0x2
| 4^ | 1.0 | | 0.6 0.6 | 0.7 0.7 | 1.0 | | | 0.7 | add byte ptr [r14+0x4], 0x2
| 4^ | | 1.0 | 0.7 0.7 | 0.7 0.7 | 1.0 | | | 0.6 | add byte ptr [r14+0x5], 0x2
| 4^ | | | 0.7 0.7 | 0.6 0.6 | 1.0 | 1.0 | | 0.7 | add byte ptr [r14+0x6], 0x2
| 4^ | | | 0.6 0.6 | 0.7 0.7 | 1.0 | | 1.0 | 0.7 | add byte ptr [r14+0x7], 0x2
| 4^ | 1.0 | | 0.7 0.7 | 0.7 0.7 | 1.0 | | | 0.6 | add byte ptr [r14+0x8], 0x2
| 4^ | | 1.0 | 0.7 0.7 | 0.6 0.6 | 1.0 | | | 0.7 | add byte ptr [r14+0x9], 0x2
| 4^ | | | 0.6 0.6 | 0.7 0.7 | 1.0 | 1.0 | | 0.7 | add byte ptr [r14+0xa], 0x2
| 4^ | | | 0.7 0.7 | 0.7 0.7 | 1.0 | | 1.0 | 0.6 | add byte ptr [r14+0xb], 0x2
| 4^ | 1.0 | | 0.7 0.7 | 0.6 0.6 | 1.0 | | | 0.7 | add byte ptr [r14+0xc], 0x2
| 4^ | | 1.0 | 0.6 0.6 | 0.7 0.7 | 1.0 | | | 0.7 | add byte ptr [r14+0xd], 0x2
| 4^ | | | 0.7 0.7 | 0.7 0.7 | 1.0 | 1.0 | | 0.6 | add byte ptr [r14+0xe], 0x2
| 4^ | | | 0.7 0.7 | 0.6 0.6 | 1.0 | | 1.0 | 0.7 | add byte ptr [r14+0xf], 0x2
Total Num Of Uops: 64
With an indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 1.00 Cycles Throughput Bottleneck: Dependency chains
Loop Count: 23
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 0.2 0.0 | 0.2 | 1.0 1.0 | 1.0 1.0 | 1.0 | 0.2 | 0.2 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 4 | 0.2 | 0.2 | 1.0 1.0 | 1.0 1.0 | 1.0 | 0.2 | 0.2 | | add byte ptr [r14+r13*1], 0x2
Total Num Of Uops: 4
With 16 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 16.00 Cycles Throughput Bottleneck: FrontEnd
Loop Count: 22
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 4.0 0.0 | 4.0 | 16.0 16.0 | 16.0 16.0 | 16.0 | 4.0 | 4.0 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 4 | 1.0 | | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1], 0x2
| 4 | | 1.0 | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0x1], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | 1.0 | | | add byte ptr [r14+r13*1+0x2], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | | 1.0 | | add byte ptr [r14+r13*1+0x3], 0x2
| 4 | 1.0 | | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0x4], 0x2
| 4 | | 1.0 | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0x5], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | 1.0 | | | add byte ptr [r14+r13*1+0x6], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | | 1.0 | | add byte ptr [r14+r13*1+0x7], 0x2
| 4 | 1.0 | | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0x8], 0x2
| 4 | | 1.0 | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0x9], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | 1.0 | | | add byte ptr [r14+r13*1+0xa], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | | 1.0 | | add byte ptr [r14+r13*1+0xb], 0x2
| 4 | 1.0 | | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0xc], 0x2
| 4 | | 1.0 | 1.0 1.0 | 1.0 1.0 | 1.0 | | | | add byte ptr [r14+r13*1+0xd], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | 1.0 | | | add byte ptr [r14+r13*1+0xe], 0x2
| 4 | | | 1.0 1.0 | 1.0 1.0 | 1.0 | | 1.0 | | add byte ptr [r14+r13*1+0xf], 0x2
Total Num Of Uops: 64