gh-109627: duplicated smalll exit blocks need to be assigned jump target labels#109630
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iritkatriel merged 2 commits intopython:mainfrom Sep 20, 2023
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gh-109627: duplicated smalll exit blocks need to be assigned jump target labels#109630iritkatriel merged 2 commits intopython:mainfrom
iritkatriel merged 2 commits intopython:mainfrom
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iritkatriel
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carljm
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Thanks @iritkatriel for the PR 🌮🎉.. I'm working now to backport this PR to: 3.12. |
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Sorry, @iritkatriel, I could not cleanly backport this to |
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…mp target labels (python#109630) (cherry picked from commit 9ccf054)
iritkatriel
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…mp target labels (python#109630) (cherry picked from commit 9ccf054)
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GH-109632 is a backport of this pull request to the 3.12 branch. |
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GH-109632 is a backport of this pull request to the 3.12 branch. |
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Fixes #109627.
In order to ensure that function exits have a line number, the compiler duplicates small exit blocks which (1) do not have a line number in any instruction and (2) have more than one predecessor. Since these blocks are jump targets (at least one predecessor reaches this block via a jump or exception), they need to have labels assigned to them. This was missing, and is added in this PR.