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From: "guojiufu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/106460] internal compiler error: output_operand: invalid
 expression as operand on -O1
Date: Thu, 28 Jul 2022 05:53:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106460

--- Comment #1 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
The ice occur when output rtx "(high:DI (symbol_ref:DI ("var_48")..))) to
constant pool.
This rtx is generated at function "recog_for_combine"(in combine.cc) after
invoking "force_const_mem".

This kind of rtx represents the high part of a symbol_ref/address when pass=
ed
as an argument to "cannot_force_const_mem".  Actually, this kind of rtx can=
 not
be put into a constant pool.=20=20
So "cannot_force_const_mem" should return 'true' for them.=