fixed bug #498744

[fw/sdcc] / src / mcs51 / ralloc.c

diff --git a/src/mcs51/ralloc.c b/src/mcs51/ralloc.c
index fcc86572c2252c7a52e09a6139a71bacc0692305..b6ee9a423ff44a25472ca89049bbde0e5687f6c3 100644 (file)
--- a/src/mcs51/ralloc.c
+++ b/src/mcs51/ralloc.c
@@ -1994,10 +1994,13 @@ packRegsForSupport (iCode * ic, eBBlock * ebp)
 
       /* found it we need to remove it from the
          block */
-      for (sic = dic; sic != ic; sic = sic->next)
+      for (sic = dic; sic != ic; sic = sic->next) {
        bitVectUnSetBit (sic->rlive, IC_LEFT (ic)->key);
+       sic->rlive = bitVectSetBit (sic->rlive, IC_RIGHT (dic)->key);
+      }
 
       OP_SYMBOL(IC_LEFT (ic))=OP_SYMBOL(IC_RIGHT (dic));
+      OP_SYMBOL(IC_LEFT(ic))->liveTo = ic->seq;
       IC_LEFT (ic)->key = OP_SYMBOL(IC_RIGHT (dic))->key;
       remiCodeFromeBBlock (ebp, dic);
       bitVectUnSetBit(OP_SYMBOL(IC_RESULT(dic))->defs,dic->key);
@@ -2027,11 +2030,14 @@ packRegsForSupport (iCode * ic, eBBlock * ebp)
        }
       /* found it we need to remove it from the
          block */
-      for (sic = dic; sic != ic; sic = sic->next)
+      for (sic = dic; sic != ic; sic = sic->next) {
        bitVectUnSetBit (sic->rlive, IC_RIGHT (ic)->key);
+       sic->rlive = bitVectSetBit (sic->rlive, IC_RIGHT (dic)->key);
+      }
 
       IC_RIGHT (ic)->operand.symOperand =
        IC_RIGHT (dic)->operand.symOperand;
+      OP_SYMBOL(IC_RIGHT(ic))->liveTo = ic->seq;
       IC_RIGHT (ic)->key = IC_RIGHT (dic)->operand.symOperand->key;
 
       remiCodeFromeBBlock (ebp, dic);