[Bug middle-end/127785] [15/16/17 Regression] !__builtin_isunordered (a, b) & (a != b) folded to LTGT raises FE_INVALID for a quiet NaN since r15-3353

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127785

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

           What    |Removed                     |Added
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           Priority|P3                          |P2

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note when backporting double-check the other pattern exists.