config/csky/csky.c

283 /* Maximum constant offset that can be added/subtracted from SP in a
656 /* FIXME: the max offset is related to mode size, the following is
658    QImode, and should the min offset be defined?  */
781   /* The maximum offset into the code that this entry can be placed.  While
791   /* The offset from the start of the minipool.  */
792   HOST_WIDE_INT offset;
1081       /* It will always be better to place the table before the label, rather
1116   rtx_code_label *label = gen_label_rtx ();
1168   from = emit_jump_insn_after (gen_jump (label), selected);
1169   JUMP_LABEL (from) = label;
1171   emit_label_after (label, barrier);
1256    minipool.  ADDRESS is the offset of the insn since the start of the
1319   HOST_WIDE_INT offset = 0;
1326       mp->offset = offset;
1329 	offset += mp->fix_size;
1359 		       (unsigned) mp->offset, (unsigned long) mp->min_address,
1576 				   this_fix->minipool->offset);
1682       /* We need a temporary reg to hold the offset for adjusting the SP
1748    Define the offset between two registers, one to be eliminated, and
1754   int offset;
1758   /* Set OFFSET to the offset to the initial stack pointer.  */
1762       offset = cfun->machine->reg_offset;
1766       offset = cfun->machine->arg_offset;
1773   /* If we are asked for the offset to the frame pointer instead,
1777     offset -= cfun->machine->reg_offset;
1778   return offset;
2015       /* Load the offset and add it to this_rtx	 */
2726   rtx label, labelno, unspec, tmp;
2732   label = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, labelno), UNSPEC_TLS_LABEL);
2734 			   gen_rtvec (3, x, GEN_INT (reloc), label),
2738   emit_move_insn (tmp, label);
2754   rtx dest, tp, label, labelno, unspec, ret, eqv, addend, tmp;
2787       label = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, labelno), UNSPEC_TLS_LABEL);
2789 			       gen_rtvec (3, x, GEN_INT (TLS_IE32), label),
2793       emit_move_insn (tmp, label);
2830 	  HOST_WIDE_INT offset = INTVAL (xop1);
2832 	  /* Try to replace ld32 rx,(ry, offset), to addi16 rz, oimm8
2836 	      && offset > CSKY_LD16_MAX_OFFSET (mode)
2837 	      && offset <= (CSKY_ADDI16_MAX_IMM
2841 		= offset & CSKY_LD16_OFFSET_MASK (mode);
2844 						   offset - new_ld_offset),
2848 	  else if (offset < 0 && offset >= (-CSKY_SUBI16_MAX_IMM))
2850 	  else if (offset > CSKY_LD16_MAX_OFFSET (mode)
2851 		   || offset < 0)
3117   rtx base, index, symbol, label, disp;
3129   out->base = out->index = out->symbol = out->label = out->disp = NULL_RTX;
3140       out->label = addr;
3156 	  out->label = addends[0];
3280 /* Output the constpool label according to the rtx expression X.  */
3311   if (addr.label && addr.disp && GET_CODE (addr.disp) == CONST_INT)
3314       csky_output_constpool_label (stream, addr.label);
3317   else if (addr.label)
3320       csky_output_constpool_label (stream, addr.label);
3975 	  else if (op1.label)
4097 	  if (op1.label)
4706 /* Return true if X is an address form involving a symbol or label ref.  */
4967 expand_csky_stack_adjust (int offset)
4971   int size = (offset > 0 ? offset : -offset);
4973   if (offset == 0)
5002       if (offset > 0)
5009 			   plus_constant (Pmode, stack_pointer_rtx, offset));
5024 	if (offset > 0)
5238       int offset = cfun->machine->arg_size;
5239       expand_csky_stack_adjust (- offset);
5248 	  for (offset -= 4; offset >= 0; offset -= 4, rn--)
5253 						      offset));
5277 	  int offset = reg_size - 4;
5285 						      offset));
5289 		if (offset == stm_size)
5291 		offset -= 4;
5410 	  int offset = reg_size - 4;
5418 							offset));
5423 		if (offset == ldm_size)
5425 		offset -= 4;
5741       rtx base, offset;
5757       offset = csky_legitimize_pic_address (XEXP (XEXP (orig, 0), 1),
5760       if (GET_CODE (offset) == CONST_INT)
5761 	return plus_constant (Pmode, base, INTVAL (offset));
5763       return gen_rtx_PLUS (Pmode, base, offset);
6747    For C-SKY, (register) and (register + offset) have the same cost.