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From: "kristerw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/110760] slp introduces new overflow
 arithmetic
Date: Thu, 20 Jul 2023 23:29:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110760

--- Comment #3 from Krister Walfridsson <kristerw at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> I thought we decided that vector types don't apply the overflow rules and
> always just wrap ...

That makes sense. But on the other hand, PR 110495 is a similar issue, and =
that
was fixed...

And TYPE_OVERFLOW_WRAPS should return true for integer vectors if they alwa=
ys
wrap (or is it only valid for scalars? But ANY_INTEGRAL_TYPE_P is careful to
handle vectors and complex numbers too, so I thought the
ANY_INTEGRAL_TYPE_CHECK in TYPE_OVERFLOW_WRAPS means that it work for vecto=
rs
too).=