@@ -7892,6 +7892,24 @@ label:
""
{
prepare_move_operands (operands, DImode);
+ if (TARGET_SH1)
+ {
+ /* When the dest operand is (R0, R1) register pair, split it to
+ two movsi of which dest is R1 and R0 so as to lower R0-register
+ pressure on the first movsi. Apply only for simple source not
+ to make complex rtl here. */
+ if (REG_P (operands[0])
+ && REGNO (operands[0]) == R0_REG
+ && REG_P (operands[1])
+ && REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER)
+ {
+ emit_insn (gen_movsi (gen_rtx_REG (SImode, R1_REG),
+ gen_rtx_SUBREG (SImode, operands[1], 4)));
+ emit_insn (gen_movsi (gen_rtx_REG (SImode, R0_REG),
+ gen_rtx_SUBREG (SImode, operands[1], 0)));
+ DONE;
+ }
+ }
})
(define_insn "movdf_media"