PANDN (XMM, M128) - Port Usage (IACA 2.1)
With blocking instructions for ports {'2', '3'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.50 Cycles Throughput Bottleneck: PORT2_AGU, Port2_DATA, PORT3_AGU, Port3_DATA
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.3 0.0 | 0.3 | 5.5 5.5 | 5.5 5.5 | 0.0 | 0.3 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm1, xmmword ptr [r14+0x40]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm2, xmmword ptr [r14+0x50]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm3, xmmword ptr [r14+0x60]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm4, xmmword ptr [r14+0x70]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm5, xmmword ptr [r14+0x80]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm6, xmmword ptr [r14+0x90]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm7, xmmword ptr [r14+0xa0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm8, xmmword ptr [r14+0xb0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm9, xmmword ptr [r14+0xc0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm10, xmmword ptr [r14+0xd0]
| 2^ | 0.3 | 0.3 | 0.5 0.5 | 0.5 0.5 | | 0.3 | | | CP | pandn xmm0, xmmword ptr [r14]
Total Num Of Uops: 12
⇨ One μop that can only use ports {'2', '3'}
With blocking instructions for ports {'0', '1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 3.70 Cycles Throughput Bottleneck: Port0, Port1, Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 3.7 0.0 | 3.7 | 0.5 0.5 | 0.5 0.5 | 0.0 | 3.7 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm1, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm3, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm4, xmm2, 0x2
| 1 | 0.3 | 0.4 | | | | 0.3 | | | CP | blendpd xmm5, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm6, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm7, xmm2, 0x2
| 1 | 0.3 | 0.4 | | | | 0.3 | | | CP | blendpd xmm8, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm9, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm10, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm11, xmm2, 0x2
| 2^ | 0.3 | 0.3 | 0.5 0.5 | 0.5 0.5 | | 0.3 | | | CP | pandn xmm0, xmmword ptr [r14]
Total Num Of Uops: 12
⇨ One μop that can only use ports {'0', '1', '5'}
With an indexed addressing mode
With blocking instructions for ports {'2', '3'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.50 Cycles Throughput Bottleneck: PORT2_AGU, Port2_DATA, PORT3_AGU, Port3_DATA
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.3 0.0 | 0.3 | 5.5 5.5 | 5.5 5.5 | 0.0 | 0.3 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm1, xmmword ptr [r14+0x40]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm2, xmmword ptr [r14+0x50]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm3, xmmword ptr [r14+0x60]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm4, xmmword ptr [r14+0x70]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm5, xmmword ptr [r14+0x80]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm6, xmmword ptr [r14+0x90]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm7, xmmword ptr [r14+0xa0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm8, xmmword ptr [r14+0xb0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm9, xmmword ptr [r14+0xc0]
| 1^ | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | lddqu xmm10, xmmword ptr [r14+0xd0]
| 2 | 0.3 | 0.3 | 0.5 0.5 | 0.5 0.5 | | 0.3 | | | CP | pandn xmm0, xmmword ptr [r14+r13*1]
Total Num Of Uops: 12
⇨ One μop that can only use ports {'2', '3'}
With blocking instructions for ports {'0', '1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 3.70 Cycles Throughput Bottleneck: Port0, Port1, Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 3.7 0.0 | 3.7 | 0.5 0.5 | 0.5 0.5 | 0.0 | 3.7 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | 0.3 | 0.3 | | | | 0.4 | | | CP | blendpd xmm1, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm3, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm4, xmm2, 0x2
| 1 | 0.3 | 0.4 | | | | 0.3 | | | CP | blendpd xmm5, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm6, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm7, xmm2, 0x2
| 1 | 0.3 | 0.4 | | | | 0.3 | | | CP | blendpd xmm8, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm9, xmm2, 0x2
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | blendpd xmm10, xmm2, 0x2
| 1 | 0.3 | 0.4 | | | | 0.3 | | | CP | blendpd xmm11, xmm2, 0x2
| 2 | 0.3 | 0.3 | 0.5 0.5 | 0.5 0.5 | | 0.3 | | | CP | pandn xmm0, xmmword ptr [r14+r13*1]
Total Num Of Uops: 12
⇨ One μop that can only use ports {'0', '1', '5'}