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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/97521] [11 Regression] wrong code with -mno-sse2 since
 r11-3394
Date: Wed, 21 Oct 2020 16:56:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97521

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
It seems that
  vector(2) <signed-boolean:64> _1;
  vector(2) <signed-boolean:64> _2;
...
  _1 =3D _2 & { 0, -1 };
remains in the IL after that change, which results in expansion of TImode A=
ND,
but the second operand of that is (const_int 2 [0x2]) and not the expected
0xffffffffffffffff0000000000000000 constant.=