| # [WARNING GRT-0350] Missing route to pin iregister_read/io_bypass_1_bits_data[0]. |
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| Tool: Global Routing |
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| Subcategory: Parasitics estimation issue |
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| ## Conversation |
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| ### oharboe |
| This is for the top level of MegaBoom that I'm playing around with.
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| Is this warning telling me that it can't find a route for the buffer tree for the pin in the warning?
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| It looks like this buffer tree is going from the iregister_read macro to the ALUExeUnit, which traverses Rob(reorder buffer), rename stage and the memory issue unit. The mpl2 macro placement is unfortunate here...
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| ### maliberty |
| @eder-matheus please respond |
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| ### eder-matheus |
| @oharboe @maliberty This warning is related to the estimate_parasitics using global route parasitics. It usually happens when a routing topology is not correctly translated to the parasitics estimation structures. I will look into the test case and fix the cause of this bug. |
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