VCVTPD2PS (XMM, YMM) - Port Usage (IACA 3.0)
With blocking instructions for port '5':
Throughput Analysis Report
--------------------------
Block Throughput: 10.95 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 | 0.5 0.0 | 0.5 | 0.0 0.0 | 0.0 0.0 | 0.0 | 11.0 | 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 | | | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | movd mmx1, r8d
| 1 | | | | | | 1.0 | | | movd mmx2, r8d
| 1 | | | | | | 1.0 | | | movd mmx3, r8d
| 1 | | | | | | 1.0 | | | movd mmx4, r8d
| 1 | | | | | | 1.0 | | | movd mmx5, r8d
| 1 | | | | | | 1.0 | | | movd mmx6, r8d
| 1 | | | | | | 1.0 | | | movd mmx7, r8d
| 1 | | | | | | 1.0 | | | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | movd mmx1, r8d
| 2 | 0.5 | 0.5 | | | | 1.0 | | | vcvtpd2ps xmm0, ymm1
Total Num Of Uops: 12
⇨ One μop that can only use port '5'
With blocking instructions for ports {'0', '1'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.53 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 | 5.0 0.0 | 5.0 | 0.0 0.0 | 0.0 0.0 | 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 |
-----------------------------------------------------------------------------------------
| 2 | 1.0 | | | | | | | | vcvtph2ps xmm2, xmm3
| 2 | | 1.0 | | | | | | | vcvtph2ps xmm4, xmm3
| 2 | 1.0 | | | | | | | | vcvtph2ps xmm5, xmm3
| 2 | | 1.0 | | | | | | | vcvtph2ps xmm6, xmm3
| 2 | 1.0 | | | | | | | | vcvtph2ps xmm7, xmm3
| 2 | | 1.0 | | | | | | | vcvtph2ps xmm8, xmm3
| 2 | 1.0 | | | | | | | | vcvtph2ps xmm9, xmm3
| 2 | | 1.0 | | | | | | | vcvtph2ps xmm10, xmm3
| 2 | 1.0 | | | | | | | | vcvtph2ps xmm11, xmm3
| 2 | | 1.0 | | | | | | | vcvtph2ps xmm12, xmm3
| 2 | | | | | | 2.0 | | | vcvtpd2ps xmm0, ymm1
Total Num Of Uops: 22
With blocking instructions for ports {'0', '1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 4.00 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 | 0.0 0.0 | 0.0 0.0 | 0.0 | 4.0 | 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 | | | | | | | | vmovq xmm2, xmm3
| 1 | | 1.0 | | | | | | | vmovq xmm4, xmm3
| 1 | | | | | | 1.0 | | | vmovq xmm5, xmm3
| 1 | 1.0 | | | | | | | | vmovq xmm6, xmm3
| 1 | | 1.0 | | | | | | | vmovq xmm7, xmm3
| 1 | | | | | | 1.0 | | | vmovq xmm8, xmm3
| 1 | 1.0 | | | | | | | | vmovq xmm9, xmm3
| 1 | | 1.0 | | | | | | | vmovq xmm10, xmm3
| 1 | | | | | | 1.0 | | | vmovq xmm11, xmm3
| 1 | 1.0 | | | | | | | | vmovq xmm12, xmm3
| 2 | | 1.0 | | | | 1.0 | | | vcvtpd2ps xmm0, ymm1
Total Num Of Uops: 12
⇨ One μop that can only use ports {'0', '1', '5'}