diff -r b602f0459f17 -r 1ecf916cc397 stage3/constant_folding.cc
--- a/stage3/constant_folding.cc	Tue Jun 12 17:15:24 2012 +0100
+++ b/stage3/constant_folding.cc	Tue Jun 12 22:32:09 2012 +0200
@@ -431,8 +431,9 @@
 
 
 void *constant_folding_c::visit(integer_c *symbol) {
-	NEW_CVALUE( int64, symbol);	SET_CVALUE( int64, symbol, extract_integer_value(symbol));
-	NEW_CVALUE(uint64, symbol);	SET_CVALUE(uint64, symbol, extract_integer_value(symbol));
+	bool overflow;
+	NEW_CVALUE( int64, symbol);	SET_CVALUE( int64, symbol, extract_int64_value(symbol, &overflow));
+	NEW_CVALUE(uint64, symbol);	SET_CVALUE(uint64, symbol, extract_uint64_value(symbol, &overflow));
 	return NULL;
 }