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From: "stefansf at linux dot ibm.com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/100263] [11/12 Regression] RTL optimizers
 miscompile loop
Date: Wed, 28 Apr 2021 14:20:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100263

--- Comment #11 from Stefan Schulze Frielinghaus <stefansf at linux dot ibm=
.com> ---
(In reply to Eric Botcazou from comment #10)
> OK, then it's probably better to add it to:
>=20
>       if (!is_a <scalar_int_mode> (reg_mode[regno], &old_mode)
> 	  || !MODES_OK_FOR_MOVE2ADD (mode, old_mode))
> 	return false;

Ok, I will move the check up there. Currently running bootstrap+regtest on =
x86
as well as IBM Z.=