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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/98998] [11 Regression] ICE in change_address_1, at
 emit-rtl.c:2275 since r11-3427
Date: Thu, 11 Feb 2021 11:54:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98998

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/config/arm/arm.md.jj    2021-01-04 10:25:44.404170742 +0100
+++ gcc/config/arm/arm.md       2021-02-11 12:50:26.049604711 +0100
@@ -9216,6 +9216,11 @@
       else
        {
          rtx mem =3D force_const_mem (SImode, operands[1]);
+         if (!general_operand (mem, SImode))
+           {
+             emit_move_insn (operands[2], XEXP (mem, 0));
+             mem =3D replace_equiv_address (mem, operands[2], false);
+           }
          emit_move_insn (operands[2], mem);
        }
     }
@@ -9299,6 +9304,11 @@
       else
        {
          rtx mem =3D force_const_mem (SImode, operands[1]);
+         if (!general_operand (mem, SImode))
+           {
+             emit_move_insn (operands[3], XEXP (mem, 0));
+             mem =3D replace_equiv_address (mem, operands[3], false);
+           }
          emit_move_insn (operands[3], mem);
        }
     }
actually seems to work, and because before r11-3427 the code has done
emit_move_insn (operands[{2,3}], XEXP (force_const_mem (...), [0])); I thin=
k it
must work.=