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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/94454] ICE 'canonical types differ for identical types'
Date: Thu, 02 Apr 2020 12:38:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94454

--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
there's a gist here:
https://gist.github.com/jwakely/e131d3a268a78764458186eff02f29ec

with Jonathan's valgrind session and some debug output from one case where I
managed to catch the fail under a debugger.=