(eval '(foo-2002-05-13))
(compile 'foo-2002-05-13)
(foo-2002-05-13) ; (The bug caused UNDEFINED-FUNCTION to be signalled here.)
+
+;;; floating point pain on the PPC.
+;;;
+;;; This test case used to fail to compile on most powerpcs prior to
+;;; sbcl-0.7.4.2x, as floating point traps were being incorrectly
+;;; masked.
+(defun floating-point-pain (x)
+ (declare (single-float x))
+ (log x))
+
+;;; bug found and fixed ca. sbcl-0.7.5.12: The INTERSECTION-TYPE
+;;; here satisfies "is a subtype of ARRAY-TYPE", but can't be
+;;; accessed with ARRAY-TYPE accessors like
+;;; ARRAY-TYPE-SPECIALIZED-ELEMENT-TYPE, so ARRAY-related
+;;; DEFTRANSFORMs died with TYPE-ERROR at compile time when
+;;; compiling the DEFUN here.
+(defun stupid-input-to-smart-array-deftransforms-0-7-5-12 (v)
+ (declare (type (and simple-vector fwd-type-ref) v))
+ (aref v 0))
+
+;;; Ca. sbcl-0.7.5.15 the compiler would fail an internal consistency
+;;; check on this code because it expected all calls to %INSTANCE-REF
+;;; to be transformed away, but its expectations were dashed by perverse
+;;; code containing app programmer errors like this.
+(defstruct something-known-to-be-a-struct x y)
+(multiple-value-bind (fun warnings-p failure-p)
+ (compile nil
+ '(lambda ()
+ (labels ((a1 (a2 a3)
+ (cond (t (a4 a2 a3))))
+ (a4 (a2 a3 a5 a6)
+ (declare (type (or simple-vector null) a5 a6))
+ (something-known-to-be-a-struct-x a5))
+ (a8 (a2 a3)
+ (a9 #'a1 a10 a2 a3))
+ (a11 (a2 a3)
+ (cond ((and (funcall a12 a2)
+ (funcall a12 a3))
+ (funcall a13 a2 a3))
+ (t
+ (when a14
+ (let ((a15 (a1 a2 a3)))
+ ))
+ a16))))
+ (values #'a17 #'a11))))
+ ;; Python sees the structure accessor on the known-not-to-be-a-struct
+ ;; A5 value and is very, very disappointed in you. (But it doesn't
+ ;; signal BUG any more.)
+ (assert failure-p))
+
+;;; On the SPARC, there was an erroneous definition of some VOPs used
+;;; to compile LOGANDs, which would lead to compilation of the
+;;; following function giving rise to a compile-time error (bug
+;;; spotted and fixed by Raymond Toy for CMUCL)
+(defun logand-sparc-bogons (a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10)
+ (declare (type (unsigned-byte 32) a0)
+ (type (signed-byte 32) a1 a2 a3 a4 a5 a6 a7 a8 a9 a10)
+ ;; to ensure that the call is a candidate for
+ ;; transformation
+ (optimize (speed 3) (safety 0) (compilation-speed 0) (debug 0)))
+ (values
+ ;; the call that fails compilation
+ (logand a0 a10)
+ ;; a call to prevent the other arguments from being optimized away
+ (logand a1 a2 a3 a4 a5 a6 a7 a8 a9)))
+
+;;; bug 192, reported by Einar Floystad Dorum sbcl-devel 2002-08-14,
+;;; fixed in sbcl-0.7.6.26: Compiling this function in 0.7.6 caused
+;;; the compiler to try to constant-fold DATA-VECTOR-REF, which is OK,
+;;; except that there was no non-VOP definition of DATA-VECTOR-REF, so
+;;; it would fail.
+(defun bug192 ()
+ (funcall
+ (LAMBDA (TEXT I L )
+ (LABELS ((G908 (I)
+ (LET ((INDEX
+ (OR
+ (IF (= I L)
+ NIL
+ (LET ((S TEXT)
+ (E (ELT TEXT I)))
+ (DECLARE (IGNORABLE S E))
+ (WHEN (EQL #\a E)
+ (G909 (1+ I))))))))
+ INDEX))
+ (G909 (I)
+ (OR
+ (IF (= I L)
+ NIL
+ (LET ((S TEXT)
+ (E (ELT TEXT I)))
+ (DECLARE (IGNORABLE S E))
+ (WHEN (EQL #\b E) (G910 (1+ I)))))))
+ (G910 (I)
+ (LET ((INDEX
+ (OR
+ (IF NIL
+ NIL
+ (LET ((S TEXT))
+ (DECLARE (IGNORABLE S))
+ (WHEN T I))))))
+ INDEX)))
+ (G908 I))) "abcdefg" 0 (length "abcdefg")))
+
+;;; bugs #65, #70, and #109, closed by APD's patch sbcl-devel 2002-08-17
+;;;
+;;; This was "YA code deletion bug" whose symptom was the failure of
+;;; the assertion
+;;; (EQ (C::LAMBDA-TAIL-SET C::CALLER)
+;;; (C::LAMBDA-TAIL-SET (C::LAMBDA-HOME C::CALLEE)))
+;;; at compile time.
+(defun bug65-1 (termx termy) ; from Carl Witty on submit bugs list, debian.org
+ (labels
+ ((alpha-equal-bound-term-lists (listx listy)
+ (or (and (null listx) (null listy))
+ (and listx listy
+ (let ((bindings-x (bindings-of-bound-term (car listx)))
+ (bindings-y (bindings-of-bound-term (car listy))))
+ (if (and (null bindings-x) (null bindings-y))
+ (alpha-equal-terms (term-of-bound-term (car listx))
+ (term-of-bound-term (car listy)))
+ (and (= (length bindings-x) (length bindings-y))
+ (prog2
+ (enter-binding-pairs (bindings-of-bound-term (car listx))
+ (bindings-of-bound-term (car listy)))
+ (alpha-equal-terms (term-of-bound-term (car listx))
+ (term-of-bound-term (car listy)))
+ (exit-binding-pairs (bindings-of-bound-term (car listx))
+ (bindings-of-bound-term (car listy)))))))
+ (alpha-equal-bound-term-lists (cdr listx) (cdr listy)))))
+
+ (alpha-equal-terms (termx termy)
+ (if (and (variable-p termx)
+ (variable-p termy))
+ (equal-bindings (id-of-variable-term termx)
+ (id-of-variable-term termy))
+ (and (equal-operators-p (operator-of-term termx) (operator-of-term termy))
+ (alpha-equal-bound-term-lists (bound-terms-of-term termx)
+ (bound-terms-of-term termy))))))
+
+ (or (eq termx termy)
+ (and termx termy
+ (with-variable-invocation (alpha-equal-terms termx termy))))))
+(defun bug65-2 () ; from Bob Rogers cmucl-imp 1999-07-28
+ ;; Given an FSSP alignment file named by the argument . . .
+ (labels ((get-fssp-char ()
+ (get-fssp-char))
+ (read-fssp-char ()
+ (get-fssp-char)))
+ ;; Stub body, enough to tickle the bug.
+ (list (read-fssp-char)
+ (read-fssp-char))))
+(defun bug70 ; from David Young cmucl-help 30 Nov 2000
+ (item sequence &key (test #'eql))
+ (labels ((find-item (obj seq test &optional (val nil))
+ (let ((item (first seq)))
+ (cond ((null seq)
+ (values nil nil))
+ ((funcall test obj item)
+ (values val seq))
+ (t
+ (find-item obj
+ (rest seq)
+ test
+ (nconc val `(,item))))))))
+ (find-item item sequence test)))
+(defun bug109 () ; originally from CMU CL bugs collection, reported as
+ ; SBCL bug by MNA 2001-06-25
+ (labels
+ ((eff (&key trouble)
+ (eff)
+ ;; nil
+ ;; Uncomment and it works
+ ))
+ (eff)))
+
+;;; bug 192a, fixed by APD "more strict type checking" patch
+;;; (sbcl-devel 2002-08-07)
+(defun bug192a (x)
+ (declare (optimize (speed 0) (safety 3)))
+ ;; Even with bug 192a, this declaration was checked as an assertion.
+ (declare (real x))
+ (+ x
+ (locally
+ ;; Because of bug 192a, this declaration was trusted without checking.
+ (declare (single-float x))
+ (sin x))))
+(assert (null (ignore-errors (bug192a nil))))
+(multiple-value-bind (result error) (ignore-errors (bug192a 100))
+ (assert (null result))
+ (assert (equal (type-error-expected-type error) 'single-float)))
+
+;;; bug 194, fixed in part by APD "more strict type checking" patch
+;;; (sbcl-devel 2002-08-07)
+(progn
+ #+nil ; FIXME: still broken in 0.7.7.19 (after patch)
+ (multiple-value-bind (result error)
+ (ignore-errors (multiple-value-prog1 (progn (the real '(1 2 3)))))
+ (assert (null result))
+ (assert (typep error 'type-error)))
+ #+nil ; FIXME: still broken in 0.7.7.19 (after patch)
+ (multiple-value-bind (result error)
+ (ignore-errors (the real '(1 2 3)))
+ (assert (null result))
+ (assert (typep error 'type-error))))
+\f
+;;; BUG 48a. and b. (symbol-macrolet handling), fixed by Eric Marsden
+;;; and Raymond Toy for CMUCL, fix ported for sbcl-0.7.6.18.
+(multiple-value-bind (function warnings-p failure-p)
+ (compile nil '(lambda () (symbol-macrolet ((t nil)) t)))
+ (assert failure-p)
+ (assert (raises-error? (funcall function) program-error)))
+(multiple-value-bind (function warnings-p failure-p)
+ (compile nil
+ '(lambda ()
+ (symbol-macrolet ((*standard-input* nil))
+ *standard-input*)))
+ (assert failure-p)
+ (assert (raises-error? (funcall function) program-error)))
+#||
+BUG 48c, not yet fixed:
+(multiple-value-bind (function warnings-p failure-p)
+ (compile nil '(lambda () (symbol-macrolet ((s nil)) (declare (special s)) s)))
+ (assert failure-p)
+ (assert (raises-error? (funcall function) program-error)))
+||#
+\f
+;;; bug 120a: Turned out to be constraining code looking like (if foo
+;;; <X> <X>) where <X> was optimized by the compiler to be the exact
+;;; same block in both cases, but not turned into (PROGN FOO <X>).
+;;; Fixed by APD in sbcl-0.7.7.2, who provided this test:
+(declaim (inline dont-constrain-if-too-much))
+(defun dont-constrain-if-too-much (frame up-frame)
+ (declare (optimize (speed 3) (safety 1) (debug 1)))
+ (if (or (not frame) t)
+ frame
+ "bar"))
+(defun dont-constrain-if-too-much-aux (x y)
+ (declare (optimize (speed 3) (safety 1) (debug 1)))
+ (if x t (if y t (dont-constrain-if-too-much x y))))
+
+(assert (null (dont-constrain-if-too-much-aux nil nil)))
+
+;;; TYPE-ERROR confusion ca. sbcl-0.7.7.24, reported and fixed by
+;;; APD sbcl-devel 2002-09-14
+(defun exercise-0-7-7-24-bug (x)
+ (declare (integer x))
+ (let (y)
+ (setf y (the single-float (if (> x 0) x 3f0)))
+ (list y y)))
+(multiple-value-bind (v e) (ignore-errors (exercise-0-7-7-24-bug 4))
+ (assert (null v))
+ (assert (typep e 'type-error)))
+(assert (equal (exercise-0-7-7-24-bug -4) '(3f0 3f0)))
\f
;;;; tests not in the problem domain, but of the consistency of the
;;;; compiler machinery itself