Fixed the range computation for SEND iCode

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@1555 4a8a32a2-be11-0410-ad9d-d568d2c75423

diff --git a/src/SDCClrange.c b/src/SDCClrange.c
index 495d68072ec2435b97d4aed0681778d042c79f40..96287420938c673a72f8b208fad8b4c28330ba7d 100644 (file)
--- a/src/SDCClrange.c
+++ b/src/SDCClrange.c
@@ -300,6 +300,17 @@ operandLUse (operand * op, eBBlock ** ebbs,
       (OP_LIVETO (op) && OP_LIVETO (op) < ic->seq))
     {
       int torange = ic->seq;
+
+      /* if this is a SEND then the toRange should be extended
+        to the call */
+      if (ic->op == SEND) {
+         iCode *lic ;
+         for (lic = ic->next ; lic ; lic = lic->next) {
+             if (lic->op == CALL || lic->op == PCALL) break;
+         }
+         /* found it : mark */
+         if (lic) torange = lic->seq;
+      }
       /* if this is the last use then if this block belongs 
          to a  loop &  some definition  comes into the loop 
          then extend the live range to  the end of the loop */
@@ -308,6 +319,7 @@ operandLUse (operand * op, eBBlock ** ebbs,
        {
          torange = findLoopEndSeq (ebp->partOfLoop);
        }
+      
       op = operandFromOperand (op);
       setToRange (op, torange, FALSE);
     }
@@ -624,15 +636,16 @@ static void computeClash ()
            /* so they overlap : set both their clashes */
            inner->clashes = bitVectSetBit(inner->clashes,outer->key);
            outer->clashes = bitVectSetBit(outer->clashes,inner->key);
-#if 0      
+
            /* check if they share the same spillocation */
-           if (SYM_SPIL_LOC(inner) && SYM_SPIL_LOC(outer)) {
+           if (SYM_SPIL_LOC(inner) && SYM_SPIL_LOC(outer) && 
+               SYM_SPIL_LOC(inner) == SYM_SPIL_LOC(outer)) {
                if (inner->reqv && !outer->reqv) SYM_SPIL_LOC(outer)=NULL;
                else if (outer->reqv && !inner->reqv) SYM_SPIL_LOC(inner)=NULL;
                else if (inner->used > outer->used) SYM_SPIL_LOC(outer)=NULL;
                else SYM_SPIL_LOC(inner)=NULL;
            }
-#endif
+
        }
     }
 }