BUG: incorrect results with notinline MIN on AMD64

Eric Marsden via Sbcl-devel <[email protected]>
Newsgroups gmane.lisp.steel-bank.devel
Message-ID <[email protected]>
Hi,

This is from random-integer testing on AMD64.

* (lisp-implementation-version)
"2.5.11.34-373278e4e"
* (defun foo (a b)
   (1+
    (ash a
         (min 63
              (deposit-field -10 (byte 15 2)
                      (expt (if (< a b) a a) 0))))))
FOO
* (defun bar (a b)  ; identical except for declaration
   (declare (notinline min))
   (1+
    (ash a
         (min 63
              (deposit-field -10 (byte 15 2)
                             (expt (if (< a b) a a) 0))))))
BAR
* (foo -973374182 -2808094898932282)
8977792211655191254905389057
* (bar -973374182 -2808094898932282)
-8977792211655191254905389055   ;; different result


_______________________________________________
Sbcl-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/sbcl-devel
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.