don't know why yet, but this causes a crash

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

diff --git a/src/mcs51/ralloc.c b/src/mcs51/ralloc.c
index 6be33c026df4f02c1dad728f02452fe7420cb9c2..6c35d9ca8b7e2a0c807ec97690036fd39e6b7d6b 100644 (file)
--- a/src/mcs51/ralloc.c
+++ b/src/mcs51/ralloc.c
@@ -1107,6 +1107,18 @@ serialRegAssign (eBBlock ** ebbs, int count)
 
        /* of all instructions do */
        for (ic = ebbs[i]->sch; ic; ic = ic->next) {
+#if 0
+           int i;
+
+           // update the registers in use at the start of this icode
+           for (i=0; i<8; i++) {
+             if (regs8051[i].isFree) {
+               ic->riu &= ~(1<<regs8051[i].offset);
+             } else {
+               ic->riu |= (1<<regs8051[i].offset);
+             }
+           }
+#endif
 
            /* if this is an ipop that means some live
               range will have to be assigned again */
@@ -2007,7 +2019,7 @@ reassignAliasedSym (eBBlock *ebp, iCode *assignment, iCode *use, operand *op)
 
   /* update the sym's liverange */
   if ( OP_LIVETO(op) < ic->seq )
-    setToRange(op, ic->seq, FALSE, OP_SYMBOL(op)->level);
+    setToRange(op, ic->seq, FALSE);
 
   /* remove the assignment iCode now that its result is unused */
   remiCodeFromeBBlock (ebp, assignment);
@@ -2790,6 +2802,7 @@ mcs51_assignRegisters (eBBlock ** ebbs, int count)
   int i;
 
   setToNull ((void *) &_G.funcrUsed);
+  //setToNull ((void *) &_G.regAssigned);
   setToNull ((void *) &_G.totRegAssigned);
   mcs51_ptrRegReq = _G.stackExtend = _G.dataExtend = 0;
   mcs51_nRegs = 8;
@@ -2810,6 +2823,8 @@ mcs51_assignRegisters (eBBlock ** ebbs, int count)
   serialRegAssign (ebbs, count);
 
   freeAllRegs ();
+  //setToNull ((void *) &_G.regAssigned);
+  //setToNull ((void *) &_G.totRegAssigned);
   fillGaps();
 
   /* if stack was extended then tell the user */