PDEP (R64, R64, M64) - Throughput and Uops (IACA 2.2)
With a non-indexed addressing mode
With 1 independent instruction
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 | 0.5 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^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r8, r9, qword ptr [r14]
Total Num Of Uops: 2
With 7 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 7.00 Cycles Throughput Bottleneck: Port1
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 7.0 | 3.5 3.5 | 3.5 3.5 | 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^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r8, r9, qword ptr [r14]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r10, r9, qword ptr [r14+0x8]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r11, r9, qword ptr [r14+0x10]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r12, r9, qword ptr [r14+0x18]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rbx, r9, qword ptr [r14+0x20]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rcx, r9, qword ptr [r14+0x28]
| 2^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rdx, r9, qword ptr [r14+0x30]
Total Num Of Uops: 14
With an indexed addressing mode
With 1 independent instruction
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 | 0.5 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 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r8, r9, qword ptr [r14+r13*1]
Total Num Of Uops: 2
With 7 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 7.00 Cycles Throughput Bottleneck: Port1
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 7.0 | 3.5 3.5 | 3.5 3.5 | 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 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r8, r9, qword ptr [r14+r13*1]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r10, r9, qword ptr [r14+r13*1+0x8]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r11, r9, qword ptr [r14+r13*1+0x10]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r12, r9, qword ptr [r14+r13*1+0x18]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rbx, r9, qword ptr [r14+r13*1+0x20]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rcx, r9, qword ptr [r14+r13*1+0x28]
| 2 | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep rdx, r9, qword ptr [r14+r13*1+0x30]
Total Num Of Uops: 14
With the -no_interiteration flag
Throughput Analysis Report
--------------------------
Block Throughput: 1.00 Cycles Throughput Bottleneck: Port1
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 | 0.5 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^ | | 1.0 | 0.5 0.5 | 0.5 0.5 | | | | | CP | pdep r8, r9, qword ptr [r14]
Total Num Of Uops: 2