Index: src/expr.c
==================================================================
--- src/expr.c
+++ src/expr.c
@@ -2077,11 +2077,11 @@
 ** in *pValue.  If the expression is not an integer or if it is too big
 ** to fit in a signed 32-bit integer, return 0 and leave *pValue unchanged.
 */
 int sqlite3ExprIsInteger(Expr *p, int *pValue){
   int rc = 0;
-  if( p==0 ) return 0;  /* Can only happen following on OOM */
+  if( NEVER(p==0) ) return 0;  /* Used to only happen following on OOM */
 
   /* If an expression is an integer literal that fits in a signed 32-bit
   ** integer, then the EP_IntValue flag will have already been set */
   assert( p->op!=TK_INTEGER || (p->flags & EP_IntValue)!=0
            || sqlite3GetInt32(p->u.zToken, &rc)==0 );