Index: src/status.c
==================================================================
--- src/status.c
+++ src/status.c
@@ -110,21 +110,26 @@
 /*
 ** Adjust the highwater mark if necessary.
 ** The caller must hold the appropriate mutex.
 */
 void sqlite3StatusHighwater(int op, int X){
+#if SQLITE_PTRSIZE>4
+  sqlite3_int64 newValue = (sqlite3_int64)X;
+#else
+  u32 newValue = (u32)X;
+#endif
   wsdStatInit;
   assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
   assert( op>=0 && op<ArraySize(statMutex) );
   assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
                                            : sqlite3MallocMutex()) );
   assert( op==SQLITE_STATUS_MALLOC_SIZE
           || op==SQLITE_STATUS_PAGECACHE_SIZE
           || op==SQLITE_STATUS_SCRATCH_SIZE
           || op==SQLITE_STATUS_PARSER_STACK );
-  if( X>wsdStat.mxValue[op] ){
-    wsdStat.mxValue[op] = X;
+  if( newValue>wsdStat.mxValue[op] ){
+    wsdStat.mxValue[op] = newValue;
   }
 }
 
 /*
 ** Query status information.

Index: src/vdbe.c
==================================================================
--- src/vdbe.c
+++ src/vdbe.c
@@ -2368,11 +2368,11 @@
   const u8 *zHdr;    /* Next unparsed byte of the header */
   const u8 *zEndHdr; /* Pointer to first byte after the header */
   u32 offset;        /* Offset into the data */
   u64 offset64;      /* 64-bit offset */
   u32 avail;         /* Number of bytes of available data */
-  u32 t;             /* A type code from the record header */
+  u32 t = 0;         /* A type code from the record header */
   u16 fx;            /* pDest->flags value */
   Mem *pReg;         /* PseudoTable input register */
 
   p2 = pOp->p2;
   assert( pOp->p3>0 && pOp->p3<=(p->nMem-p->nCursor) );