https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85903

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Well, movdi2sse post-reload splitter won't have any chance with:

 else if (memory_operand (operands[1], DImode))
   {
     rtx tmp = gen_reg_rtx (V2DImode);
     emit_insn (gen_vec_concatv2di (tmp, operands[1], const0_rtx));
     emit_move_insn (operands[0], gen_lowpart (V4SImode, tmp));
   }

So, it is invalid to generate pseudo after reload.

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