config/i386/i386.c

5 This file is part of GCC.
1014    lower part of scalar values in proper format leaving the upper part
1436 /* Register class used for passing given 64bit part of the argument.
9820   /* Force this value into the low part of a fp vector constant.  */
12370   rtx part[2][3];
12407   nparts = ix86_split_to_parts (operands[1], part[1], GET_MODE (operands[0]));
12408   ix86_split_to_parts (operands[0], part[0], GET_MODE (operands[0]));
12415 	part[1][1] = change_address (part[1][1], GET_MODE (part[1][1]),
12416 				     XEXP (part[1][2], 0));
12417       part[1][0] = change_address (part[1][0], GET_MODE (part[1][0]),
12418 				   XEXP (part[1][1], 0));
12423   if (REG_P (part[0][0]) && GET_CODE (part[1][0]) == MEM)
12425       if (reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0)))
12427       if (reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0)))
12430 	  && reg_overlap_mentioned_p (part[0][2], XEXP (part[1][0], 0)))
12433       /* Collision in the middle part can be handled by reordering.  */
12435 	  && reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0)))
12438 	  tmp = part[0][1]; part[0][1] = part[0][2]; part[0][2] = tmp;
12439 	  tmp = part[1][1]; part[1][1] = part[1][2]; part[1][2] = tmp;
12443 	 Do an lea to the last part and use only one colliding move.  */
12450 	  base = part[0][nparts - 1];
12452 	  /* Handle the case when the last part isn't valid for lea.
12457 	  emit_insn (gen_rtx_SET (VOIDmode, base, XEXP (part[1][0], 0)));
12458 	  part[1][0] = replace_equiv_address (part[1][0], base);
12459 	  part[1][1] = replace_equiv_address (part[1][1],
12462 	    part[1][2] = replace_equiv_address (part[1][2],
12475 	      emit_move_insn (part[0][2], part[1][2]);
12484 	  if (GET_MODE (part[1][1]) == SImode)
12486 	      switch (GET_CODE (part[1][1]))
12489 		  part[1][1] = adjust_address (part[1][1], DImode, 0);
12493 		  part[1][1] = gen_rtx_REG (DImode, REGNO (part[1][1]));
12500 	      if (GET_MODE (part[1][0]) == SImode)
12501 		part[1][0] = part[1][1];
12504       emit_move_insn (part[0][1], part[1][1]);
12505       emit_move_insn (part[0][0], part[1][0]);
12510   if ((REG_P (part[0][0])
12511        && REG_P (part[1][1])
12512        && (REGNO (part[0][0]) == REGNO (part[1][1])
12514 	       && REGNO (part[0][0]) == REGNO (part[1][2]))))
12516 	  && reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0))))
12520 	  operands[2] = part[0][2];
12521 	  operands[3] = part[0][1];
12522 	  operands[4] = part[0][0];
12523 	  operands[5] = part[1][2];
12524 	  operands[6] = part[1][1];
12525 	  operands[7] = part[1][0];
12529 	  operands[2] = part[0][1];
12530 	  operands[3] = part[0][0];
12531 	  operands[5] = part[1][1];
12532 	  operands[6] = part[1][0];
12539 	  operands[2] = part[0][0];
12540 	  operands[3] = part[0][1];
12541 	  operands[4] = part[0][2];
12542 	  operands[5] = part[1][0];
12543 	  operands[6] = part[1][1];
12544 	  operands[7] = part[1][2];
12548 	  operands[2] = part[0][0];
12549 	  operands[3] = part[0][1];
12550 	  operands[5] = part[1][0];
12551 	  operands[6] = part[1][1];