}
}
+/*-----------------------------------------------------------------*/
+/* allDefsOutOfRange - all definitions are out of a range */
+/*-----------------------------------------------------------------*/
+bool
+allDefsOutOfRange (bitVect * defs, int fseq, int toseq)
+{
+ int i;
+
+ if (!defs)
+ return TRUE;
+
+ for (i = 0; i < defs->size; i++)
+ {
+ iCode *ic;
+
+ if (bitVectBitValue (defs, i) &&
+ (ic = hTabItemWithKey (iCodehTab, i)) &&
+ (ic->seq >= fseq && ic->seq <= toseq))
+
+ return FALSE;
+
+ }
+
+ return TRUE;
+}
+
+/*-----------------------------------------------------------------*/
+/* notUsedInBlock - not used in this block */
+/*-----------------------------------------------------------------*/
+int
+notUsedInBlock (symbol * sym, eBBlock * ebp, iCode *ic)
+{
+ return (!bitVectBitsInCommon (sym->defs, ebp->usesDefs) &&
+ allDefsOutOfRange (sym->defs, ebp->fSeq, ebp->lSeq) &&
+ allDefsOutOfRange (sym->uses, ebp->fSeq, ebp->lSeq));
+}
+
+
/*-----------------------------------------------------------------*/
/* computeLiveRanges - computes the live ranges for variables */
/*-----------------------------------------------------------------*/
/* compute which overlaps with what */
computeClash();
}
+