VMASKMOVPS (YMM, YMM, M256) - Port Usage (IACA 2.3)
With blocking instructions for port '5':
Throughput Analysis Report
--------------------------
Block Throughput: 12.00 Cycles Throughput Bottleneck: Backend. Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 0.5 0.5 | 0.5 0.5 | 0.0 | 12.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | | | | 1.0 | | | CP | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx1, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx2, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx3, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx4, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx5, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx6, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx7, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx1, r8d
| 3^ | | | 0.5 0.5 | 0.5 0.5 | | 2.0 | | | CP | vmaskmovps ymm0, ymm1, ymmword ptr [r14]
Total Num Of Uops: 13
⇨ 2 μops that can only use port '5'
With blocking instructions for ports {'2', '3'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.50 Cycles Throughput Bottleneck: Backend. 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 | 0.0 0.0 | 0.0 | 5.5 5.5 | 5.5 5.5 | 0.0 | 2.0 | 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 | mov r8w, word ptr [r14+0x40]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r9w, word ptr [r14+0x42]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r10w, word ptr [r14+0x44]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r11w, word ptr [r14+0x46]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r12w, word ptr [r14+0x48]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov bx, word ptr [r14+0x4a]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov cx, word ptr [r14+0x4c]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov dx, word ptr [r14+0x4e]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r8w, word ptr [r14+0x40]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r9w, word ptr [r14+0x42]
| 3^ | | | 0.5 0.5 | 0.5 0.5 | | 2.0 | | | CP | vmaskmovps ymm0, ymm1, ymmword ptr [r14]
Total Num Of Uops: 13
⇨ One μop that can only use ports {'2', '3'}
With an indexed addressing mode
With blocking instructions for port '5':
Throughput Analysis Report
--------------------------
Block Throughput: 12.00 Cycles Throughput Bottleneck: Backend. Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 0.5 0.5 | 0.5 0.5 | 0.0 | 12.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | | | | 1.0 | | | CP | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx1, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx2, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx3, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx4, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx5, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx6, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx7, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | CP | movd mmx1, r8d
| 3 | | | 0.5 0.5 | 0.5 0.5 | | 2.0 | | | CP | vmaskmovps ymm0, ymm1, ymmword ptr [r14+r13*1]
Total Num Of Uops: 13
⇨ 2 μops that can only use port '5'
With blocking instructions for ports {'2', '3'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.50 Cycles Throughput Bottleneck: Backend. 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 | 0.0 0.0 | 0.0 | 5.5 5.5 | 5.5 5.5 | 0.0 | 2.0 | 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 | mov r8w, word ptr [r14+0x40]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r9w, word ptr [r14+0x42]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r10w, word ptr [r14+0x44]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r11w, word ptr [r14+0x46]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r12w, word ptr [r14+0x48]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov bx, word ptr [r14+0x4a]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov cx, word ptr [r14+0x4c]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov dx, word ptr [r14+0x4e]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r8w, word ptr [r14+0x40]
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | mov r9w, word ptr [r14+0x42]
| 3 | | | 0.5 0.5 | 0.5 0.5 | | 2.0 | | | CP | vmaskmovps ymm0, ymm1, ymmword ptr [r14+r13*1]
Total Num Of Uops: 13
⇨ One μop that can only use ports {'2', '3'}