tests/compiler.pure-cload.lisp

   1 ;;;; miscellaneous tests of compiling toplevel forms
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 (in-package :cl-user)
  15
  16 ;;; Exercise a compiler bug (by causing a call to ERROR).
  17 ;;;
  18 ;;; This bug was in sbcl-0.6.11.6.
  19 (let ((a 1) (b 1))
  20   (declare (type (mod 1000) a b))
  21   (let ((tmp (= 10 (+ (incf a) (incf a) (incf b) (incf b)))))
  22     (or tmp (error "TMP not true"))))
  23
  24 ;;; Exercise a (byte-)compiler bug by causing a call to ERROR, not
  25 ;;; because the symbol isn't defined as a variable, but because
  26 ;;;  TYPE-ERROR in SB-KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER:
  27 ;;;     0 is not of type (OR FUNCTION SB-KERNEL:FDEFN).
  28 ;;; Correct behavior is to warn at compile time because the symbol
  29 ;;; isn't declared as a variable, but to set its SYMBOL-VALUE anyway.
  30 ;;;
  31 ;;; This bug was in sbcl-0.6.11.13.
  32 (print (setq improperly-declared-var '(1 2)))
  33 (assert (equal (symbol-value 'improperly-declared-var) '(1 2)))
  34 (makunbound 'improperly-declared-var)
  35 ;;; This is a slightly different way of getting the same symptoms out
  36 ;;; of the sbcl-0.6.11.13 byte compiler bug.
  37 (print (setq *print-level* *print-level*))
  38
  39 ;;; PROGV with different numbers of variables and values
  40 (let ((a 1))
  41   (declare (special a))
  42   (assert (equal (list a (progv '(a b) '(:a :b :c)
  43                            (assert (eq (symbol-value 'nil) nil))
  44                            (list (symbol-value 'a) (symbol-value 'b)))
  45                        a)
  46                  '(1 (:a :b) 1)))
  47   (assert (equal (list a (progv '(a b) '(:a :b)
  48                            (assert (eq (symbol-value 'nil) nil))
  49                            (list (symbol-value 'a) (symbol-value 'b)))
  50                        a)
  51                  '(1 (:a :b) 1)))
  52   (assert (not (boundp 'b))))
  53
  54 (let ((a 1) (b 2))
  55   (declare (special a b))
  56   (assert (equal (list a b (progv '(a b) '(:a)
  57                              (assert (eq (symbol-value 'nil) nil))
  58                              (assert (not (boundp 'b)))
  59                              (symbol-value 'a))
  60                        a b)
  61                  '(1 2 :a 1 2))))
  62
  63 ;;; bug in LOOP, reported by ??? on c.l.l
  64 (flet ((foo (l)
  65          (loop for x in l
  66                when (symbolp x) return x
  67                while (numberp x)
  68                collect (list x))))
  69   (assert (equal (foo '(1 2 #\a 3)) '((1) (2))))
  70   (assert (equal (foo '(1 2 x 3)) 'x)))
  71
  72 ;;; compiler failure found by Paul Dietz' randomized tortuter
  73 (defun #:foo (a b c d)
  74   (declare (type (integer 240 100434465) a)
  75            (optimize (speed 3) (safety 1) (debug 1)))
  76   (logxor
  77    (if (ldb-test (byte 27 4) d)
  78        -1
  79        (max 55546856 -431))
  80    (logorc2
  81     (if (>= 0 b)
  82         (if (> b c) (logandc2 c d) (if (> d 224002) 0 d))
  83         (signum (logior c b)))
  84     (logior a -1))))
  85
  86 (defun #:foo (b c)
  87   (declare (type (integer -23228343 2) b)
  88            (type (integer -115581022 512244512) c)
  89            (optimize (speed 3) (safety 1) (debug 1)))
  90   (* (* (logorc2 3 (deposit-field 4667947 (byte 14 26) b))
  91         (deposit-field b (byte 25 27) -30424886))
  92      (dpb b (byte 23 29) c)))
  93
  94 (defun #:foo (x y)
  95   (declare (type (integer -1 1000000000000000000000000) x y)
  96            (optimize speed))
  97   (* x (* y x)))
  98
  99 (defun #:foo (b)
 100   (declare (type (integer -290488443 2) b)
 101            (optimize (speed 3) (safety 1) (debug 1)))
 102   (let ((v3 (min -1720 b))) (max v3 (logcount (if (= v3 b) b b)))))
 103
 104 (defun #:foo (d)
 105   (let ((v7 (flet ((%f16 () (labels ((%f3 () -8)) (%f3))))
 106               (labels ((%f7 () (%f16)))  d))))
 107     132887443))
 108
 109 ;;; RESULT-FORM in DO is not contained in the implicit TAGBODY
 110 (assert (eq (handler-case (eval `(do ((x '(1 2 3) (cdr x)))
 111                                      ((endp x) (go :loop))
 112                                   :loop
 113                                    (unless x (return :bad))))
 114               (error () :good))
 115             :good))
 116 (assert (eq (handler-case (eval `(do* ((x '(1 2 3) (cdr x)))
 117                                       ((endp x) (go :loop))
 118                                   :loop
 119                                    (unless x (return :bad))))
 120               (error () :good))
 121             :good))
 122
 123 ;;; bug 282
 124 ;;;
 125 ;;; Verify type checking policy in full calls: the callee is supposed
 126 ;;; to perform check, but the results should not be used before the
 127 ;;; check will be actually performed.
 128 (locally
 129     (declare (optimize (safety 3)))
 130   (flet ((bar (f a)
 131            (declare (type (simple-array (unsigned-byte 32) (*)) a))
 132            (declare (type (function (fixnum)) f))
 133            (funcall f (aref a 0))))
 134     #-x86-64
 135     (assert
 136      (eval `(let ((n (1+ most-positive-fixnum)))
 137               (if (not (typep n '(unsigned-byte 32)))
 138                   (warn 'style-warning
 139                         "~@<This test is written for platforms with ~
 140                         ~@<(proper-subtypep 'fixnum '(unsigned-byte 32))~:@>.~:@>")
 141                   (block nil
 142                     (funcall ,#'bar
 143                              (lambda (x) (when (eql x n) (return t)))
 144                              (make-array 1 :element-type '(unsigned-byte 32)
 145                                          :initial-element n))
 146                     nil)))))))
 147
 148 ;;; bug 261
 149 (let ((x (list (the (values &optional fixnum) (eval '(values))))))
 150   (assert (equal x '(nil))))
 151
 152 ;;; Bug 125, reported by Gabe Garza: Python did not preserve identity
 153 ;;; of closures.
 154 (flet ((test-case (test-pred x)
 155          (let ((func (lambda () x)))
 156            (list (eq func func)
 157                  (funcall test-pred func func)
 158                  (delete func (list func))))))
 159   (assert (equal '(t t nil) (funcall (eval #'test-case) #'eq 3))))
 160
 161 ;;; compiler failure reported by Alan Shields:
 162 ;;; MAYBE-INFER-ITERATION-VAR-TYPE did not deal with types (REAL * (n)).
 163 (let ((s (loop for x from (- pi) below (floor (* 2 pi)) by (/ pi 75) count t)))
 164   (assert (= s 219)))