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From: "clyon at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/101325] [12 Regression] arm: Wrong code with MVE vcmpeqq
 intrinsic since r12-671-gd083fbf72
Date: Wed, 07 Jul 2021 11:25:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101325

--- Comment #8 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Indeed, it's what happens in try_combine():
i2src =3D subst (i2src, pc_rtx, pc_rtx, 0, 0, 0);

converts i2src
(zero_extend:SI (reg:HI 117))
into:
(and:SI (subreg:SI (reg:HI 117) 0)
    (const_int 1 [0x1]))=