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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/97964] Missed optimization opportunity for VRP
Date: Tue, 24 Nov 2020 09:39:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97964

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #4)
> Note, trunk handles it fine again starting with
> r11-4755-g22984f3f090921b5ac80ec0057f6754ec458e97e
> So I guess we should just add the testcase (perhaps use a parameter inste=
ad
> of volatile etc.) and close, ranger is not backportable and even smaller =
VRP
> improvements might be too risky.

Agreed.=