[Bug tree-optimization/105832] [13 Regression] Dead Code Elimination Regression at -O3 (trunk vs. 12.1.0)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105832

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |needs-bisection

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Raising --param max-jump-thread-duplication-stmts from its default 15 to 17
fixes the issue.  So the issue is slightly different accounting of sizes in the
threading code and slightly different IL (though it is smaller).  Quite
possibly the bisection wasn't accurate.