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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/104389] [10/11/12 Regression] HUGE_VAL * 0.0
 is no longer a NaN
Date: Fri, 04 Feb 2022 22:28:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104389

--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> ---
Not this bug, but note that the comment and the code don't match in this
transformation: "a negative value" becomes !tree_expr_maybe_real_minus_zero=
_p
(@0) which is quite different. I am not sure the path with a negative @0 for
which tree_expr_maybe_real_minus_zero_p returns false can be reached though=
.=