Bug report

Bug description:

I found the following error with the latest cpython 3.12 from git (4a0c118), which I build myself with --with-pydebug enabled.

source:

defget_namespace_uri():whileelementandsomething:try:returnsomethingexcept:pass

output (Python 3.12.0rc3+):

python3:Python/flowgraph.c:114:basicblock_addop:Assertion `0<=oparg&&oparg< (1<<30)'failed.

CPython versions tested on:

3.12

Operating systems tested on:

Linux

Linked PRs

• gh-109627: duplicated smalll exit blocks need to be assigned jump target labels #109630
• [3.12] gh-109627: duplicated small exit blocks need to be assigned jump target labels (#109630) #109632