+Mon Mar 15 10:20:20 1999 Mark Mitchell <mark@markmitchell.com>
+
+ * reload.c (find_reloads): Add a REG_LABEL note if we substitute a
+ LABEL_REF for something else.
+
Mon Mar 15 08:24:17 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* fold-const.c (exact_real_inverse): Move variable `float_error'
reload_{in,out}_reg when we do these replacements. */
if (replace)
- *recog_operand_loc[i] = substed_operand[i];
+ {
+ rtx substitution = substed_operand[i];
+
+ *recog_operand_loc[i] = substitution;
+
+ /* If we're replacing an operand with a LABEL_REF, we need
+ to make sure that there's a REG_LABEL note attached to
+ this instruction. */
+ if (GET_CODE (insn) != JUMP_INSN
+ && GET_CODE (substitution) == LABEL_REF
+ && !find_reg_note (insn, REG_LABEL, XEXP (substitution, 0)))
+ REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_LABEL,
+ XEXP (substitution, 0),
+ REG_NOTES (insn));
+ }
else
retval |= (substed_operand[i] != *recog_operand_loc[i]);
}