[Bug tree-optimization/84407] incorrect constant propagation with -frounding-math

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84407

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

           What    |Removed                     |Added
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   Last reconfirmed|2018-02-15 00:00:00         |2021-10-27

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
In this bug the issue is int-to-real conversion.  Note that apart from
fold_convert_const via build_real_from_int_cst also RTL forwprop
via simplify_const_unary_operation folds this in the wrong way.