Fix linking of external code from callees #137
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The original linking implementation for linkable code in device declarations did not consider calls inside callees; this change recurses through the typing to find all calls requiring linkable code.
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Mar 2, 2025
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| # The typemap of the function includes calls, so we can traverse it to find | ||
| # the references we need. | ||
| for name, v in cres.fndesc.typemap.items(): | ||
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| # CUDADispatchers represent a call to a device function, so we need to | ||
| # look up the linkable code for those recursively. | ||
| if isinstance(v, cuda_types.CUDADispatcher): | ||
| # We need to locate the signature of the call so we can find the | ||
| # correct overload. | ||
| for call, sig in cres.fndesc.calltypes.items(): | ||
| if isinstance(call, ir.Expr) and call.op == 'call': | ||
| # There will likely be multiple calls in the typemap; we | ||
| # can uniquely identify the relevant one using its SSA | ||
| # name. | ||
| if call.func.name == name: | ||
| called_cres = v.dispatcher.overloads[sig.args] | ||
| called_link_objects = get_cres_link_objects(called_cres) | ||
| link_objects.update(called_link_objects) |
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This is cool. I learnt a few things by reading through this section. Do you think the below simplifies the code and reduces the code complexity for a little bit?
I made a PR here:
gmarkall#4
I think this reduces the size of the list for both of the nested for-loop. This is proportional to O(num_calls^2), not O(num_typings^2)
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The original linking implementation for linkable code in device declarations did not consider calls inside callees; this change recurses through the typing to find all calls requiring linkable code.