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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/90275] [8/9 Regression] ICE: in insert_regs,
 at cse.c:1128 with -O2 -fno-dce -fno-tree-dce
Date: Fri, 13 Mar 2020 09:11:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90275

Martin Li=C5=A1ka <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org

--- Comment #13 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
commit r10-7149-g4aded535ea6ad7c362ab62d99af70e53c186d582
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Thu Mar 12 16:09:27 2020 -0600

    Remove no-op register to register copies in CSE just like we remove no-=
op
memory to memory copies.

            PR rtl-optimization/90275
            * cse.c (cse_insn): Delete no-op register moves too.

            PR rtl-optimization/90275
            * gcc.c-torture/compile/pr90275.c: New test.=