[Bug tree-optimization/101741] [12 Regression] ICE in fold_stmt, at gimple-range-fold.cc:541 since r12-2517-g1ce0b26e6e1e6c34

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101741

--- Comment #2 from Arseny Solokha <asolokha at gmx dot com> ---
(In reply to Martin Liška from comment #1)
> why is the test-case marked as "invalid"?

It is definitely well-formed syntactically, but I'm not sure how to classify a
case of redefining a standard function which has a builtin in gcc w/ a function
w/ different return type. Is there any guidance that I could refer to in the
future when telling valid testcases from invalid ones?