Revision d4796606b136f7cba333d8da5b8961e52a5cdd15 authored by Shuhei Kadowaki on 16 January 2024, 01:15:22 UTC, committed by GitHub on 16 January 2024, 01:15:22 UTC
Investigating into #52763, I've found that `AbstractInterpreters` which enables the `aggressive_constprop` option, such as `REPLInterpreter`, might perform const-prop' even if the result of a non-const call is `LimitedAccuracy`. This can lead to an unintended infinite loop with a custom aggressive const-prop' implementation. This commit restricts const-prop' for such cases where the non-const call result is limited to avoid the issue. This fix is conservative, but given that accurate inference is mostly impossible when there are unresolvable cycles (which is indicated by limited result), aggressive const-prop' isn't necessary for such cases, and I don't anticipate this leading to any obvious regression. fix #52763
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