VPMULLQ (YMM, YMM, YMM) - Throughput and Uops (IACA 3.0)
With different registers for different operands
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 0.97 Cycles Throughput Bottleneck: Dependency chains
Loop Count: 32
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 1.0 0.0 | 1.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 1.0 | 0.0 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
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| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm0, ymm1, ymm2
Total Num Of Uops: 3
With 16 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 15.95 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 | 16.0 0.0 | 16.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 16.0 | 0.0 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm0, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm3, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm4, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm5, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm6, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm7, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm8, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm9, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm10, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm11, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm12, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm16, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm17, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm18, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm19, ymm1, ymm2
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm20, ymm1, ymm2
Total Num Of Uops: 48
With the same register for for different operands
Throughput Analysis Report
--------------------------
Block Throughput: 11.66 Cycles Throughput Bottleneck: Backend
Loop Count: 38
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 1.0 0.0 | 1.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 1.0 | 0.0 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 3 | 1.0 | 1.0 | | | | 1.0 | | | vpmullq ymm0, ymm0, ymm0
Total Num Of Uops: 3