gh-98831: add variable stack effect support to cases generator #101309
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iritkatriel
commented
Jan 25, 2023
•
iritkatriel
commented
- Issue: Generate the interpreter #98831
|
We’ll want something more efficient than this. Maybe generate a function with a switch statement for each value? |
gvanrossum
reviewed
Jan 25, 2023
Yes. Read this after writing my response. :-) |
gvanrossum
reviewed
Jan 25, 2023
| self.out.emit(f" case {instr.name}:") | ||
| self.out.emit(f" return {effect};") | ||
| self.out.emit(" default:") | ||
| self.out.emit(" Py_UNREACHABLE();") |
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If you make this return -1; then you can drop all the cases that return -1, making the function much shorter.
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There won't be any -1's when we finish. We could group all cases with the same value if we want.
gvanrossum
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Jan 25, 2023
iritkatriel
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Jan 31, 2023
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