+ (max #x-1fffffffffffff sb!xc:most-negative-fixnum))
+
+;;;; Point where continuous area starting at dynamic-space-start bumps into
+;;;; next space.
+#!+gencgc
+(def!constant max-dynamic-space-end
+ (let ((stop (1- (ash 1 n-word-bits)))
+ (start dynamic-space-start))
+ (dolist (other-start (list read-only-space-start static-space-start linkage-table-space-start))
+ (when (< start other-start)
+ (setf stop (min stop other-start))))
+ stop))