diff --git a/compiler/checkgen.lisp b/compiler/checkgen.lisp index 53617634c12f02dde5367913e022c6d63ceeab7f..6e5337073ebf3a61b70565fbb6bfa20a9acab098 100644 --- a/compiler/checkgen.lisp +++ b/compiler/checkgen.lisp @@ -7,7 +7,7 @@ ;;; Scott Fahlman or slisp-group@cs.cmu.edu. ;;; (ext:file-comment - "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/checkgen.lisp,v 1.17 1991/02/20 14:56:43 ram Exp $") + "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/checkgen.lisp,v 1.18 1991/03/18 20:54:43 ram Exp $") ;;; ;;; ********************************************************************** ;;; @@ -138,6 +138,10 @@ count))) +;;; Switch to disable check complementing, for evaluation. +;;; +(defvar *complement-type-checks* t) + ;;; MAYBE-NEGATE-CHECK -- Internal ;;; ;;; Cont is a continuation we are doing a type check on and Types is a list @@ -172,7 +176,8 @@ (weak (maybe-weaken-check c cont))) (if (and diff (< (type-test-cost diff) - (type-test-cost weak))) + (type-test-cost weak)) + *complement-type-checks*) (list t diff c) (list nil weak c)))) ptypes types)))