https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98998
--- 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 = force_const_mem (SImode, operands[1]); + if (!general_operand (mem, SImode)) + { + emit_move_insn (operands[2], XEXP (mem, 0)); + mem = replace_equiv_address (mem, operands[2], false); + } emit_move_insn (operands[2], mem); } } @@ -9299,6 +9304,11 @@ else { rtx mem = force_const_mem (SImode, operands[1]); + if (!general_operand (mem, SImode)) + { + emit_move_insn (operands[3], XEXP (mem, 0)); + mem = 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 think it must work.