fixed bug #734169

[fw/sdcc] / src / SDCClrange.c

diff --git a/src/SDCClrange.c b/src/SDCClrange.c
index 6c77fd3a42dc8671b396887b098ce803fd5ac555..a85c5ff19b64fa6c5eb532e1058650473e4c6375 100644 (file)
--- a/src/SDCClrange.c
+++ b/src/SDCClrange.c
@@ -344,7 +344,7 @@ operandLUse (operand * op, eBBlock ** ebbs,
          !IS_STATIC (etype))
        {
 
-         if (bitVectIsZero (op->usesDefs))
+         if (bitVectIsZero (op->usesDefs) && OP_SYMBOL(op)->ival==NULL)
            {
              OP_SYMBOL (op)->isspilt = 1;
 
@@ -427,10 +427,10 @@ markLiveRanges (eBBlock * ebp, eBBlock ** ebbs, int count)
   bitVect *defsUsed = NULL;
   bitVect *defsNotUsed = NULL;
   int i;
+
   /* for all the instructions */
   for (ic = ebp->sch; ic; ic = ic->next)
     {
-
       if (ic->op == CALL || ic->op == PCALL)
        {
          setFromRange (IC_RESULT (ic), ic->seq);
@@ -541,7 +541,6 @@ markLiveRanges (eBBlock * ebp, eBBlock ** ebbs, int count)
          if (bitVectBitValue (defsNotUsed, i) &&
              (dic = hTabItemWithKey (iCodehTab, i)))
            {
-
              setToRange (IC_RESULT (dic), (ebp->fSeq - 1), TRUE);
            }
        }