(cl:in-package :cl-user)
+(load "compiler-test-util.lisp")
+
;; The tests in this file assume that EVAL will use the compiler
(when (eq sb-ext:*evaluator-mode* :interpret)
(invoke-restart 'run-tests::skip-file))
(+ 81535869 (the (member 17549.955 #:g35917) p2))))
17549.955)
(+ 81535869 17549.955)))
+
+;;; misc.654
+(assert (eql 2
+ (let ((form '(lambda (p2)
+ (declare (optimize (speed 0) (safety 2) (debug 0) (space 2))
+ (type (member integer eql) p2))
+ (coerce 2 p2))))
+ (funcall (compile nil form) 'integer))))
+
+;;; misc.656
+(assert (eql 2
+ (let ((form '(lambda (p2)
+ (declare (optimize (speed 0) (safety 2) (debug 0) (space 2))
+ (type (member integer mod) p2))
+ (coerce 2 p2))))
+ (funcall (compile nil form) 'integer))))
+
+;;; misc.657
+(assert (eql 2
+ (let ((form '(lambda (p2)
+ (declare (optimize (speed 0) (safety 2) (debug 0) (space 2))
+ (type (member integer values) p2))
+ (coerce 2 p2))))
+ (funcall (compile nil form) 'integer))))
+
+(with-test (:name :string-aref-type)
+ (assert (eq 'character
+ (funcall (compile nil
+ '(lambda (s)
+ (ctu:compiler-derived-type (aref (the string s) 0))))
+ "foo"))))
+
+(with-test (:name :base-string-aref-type)
+ (assert (eq #+sb-unicode 'base-char
+ #-sb-unicode 'character
+ (funcall (compile nil
+ '(lambda (s)
+ (ctu:compiler-derived-type (aref (the base-string s) 0))))
+ (coerce "foo" 'base-string)))))
+
+(with-test (:name :dolist-constant-type-derivation)
+ (assert (equal '(integer 1 3)
+ (funcall (compile nil
+ '(lambda (x)
+ (dolist (y '(1 2 3))
+ (when x
+ (return (ctu:compiler-derived-type y))))))
+ t))))
+
+(with-test (:name :dolist-simple-list-type-derivation)
+ (assert (equal '(integer 1 3)
+ (funcall (compile nil
+ '(lambda (x)
+ (dolist (y (list 1 2 3))
+ (when x
+ (return (ctu:compiler-derived-type y))))))
+ t))))
+
+(with-test (:name :dolist-dotted-constant-list-type-derivation)
+ (let* ((warned nil)
+ (fun (handler-bind ((style-warning (lambda (c) (push c warned))))
+ (compile nil
+ '(lambda (x)
+ (dolist (y '(1 2 3 . 4) :foo)
+ (when x
+ (return (ctu:compiler-derived-type y)))))))))
+ (assert (equal '(integer 1 3) (funcall fun t)))
+ (assert (= 1 (length warned)))
+ (multiple-value-bind (res err) (ignore-errors (funcall fun nil))
+ (assert (not res))
+ (assert (typep err 'type-error)))))
+
+(with-test (:name :constant-list-destructuring)
+ (handler-bind ((sb-ext:compiler-note #'error))
+ (progn
+ (assert (= 10
+ (funcall
+ (compile nil
+ '(lambda ()
+ (destructuring-bind (a (b c) d) '(1 (2 3) 4)
+ (+ a b c d)))))))
+ (assert (eq :feh
+ (funcall
+ (compile nil
+ '(lambda (x)
+ (or x
+ (destructuring-bind (a (b c) d) '(1 "foo" 4)
+ (+ a b c d)))))
+ :feh))))))
+
+;;; Functions with non-required arguments used to end up with
+;;; (&OPTIONAL-DISPATCH ...) as their names.
+(with-test (:name :hairy-function-name)
+ (assert (eq 'read-line (nth-value 2 (function-lambda-expression #'read-line))))
+ (assert (equal "#<FUNCTION READ-LINE>" (princ-to-string #'read-line))))
+
+;;; PROGV + RESTRICT-COMPILER-POLICY
+(with-test (:name :progv-and-restrict-compiler-policy)
+ (let ((sb-c::*policy-restrictions* sb-c::*policy-restrictions*))
+ (restrict-compiler-policy 'debug 3)
+ (let ((fun (compile nil '(lambda (x)
+ (let ((i x))
+ (declare (special i))
+ (list i
+ (progv '(i) (list (+ i 1))
+ i)
+ i))))))
+ (assert (equal '(1 2 1) (funcall fun 1))))))
+
+;;; It used to be possible to confuse the compiler into
+;;; IR2-converting such a call to CONS
+(with-test (:name :late-bound-primitive)
+ (compile nil `(lambda ()
+ (funcall 'cons 1))))
+
+(with-test (:name :hairy-array-element-type-derivation)
+ (compile nil '(lambda (x)
+ (declare (type (and simple-string (satisfies array-has-fill-pointer-p)) x))
+ (array-element-type x))))
+
+(with-test (:name :rest-list-type-derivation)
+ (multiple-value-bind (type derivedp)
+ (funcall (compile nil `(lambda (&rest args)
+ (ctu:compiler-derived-type args)))
+ nil)
+ (assert (eq 'list type))
+ (assert derivedp)))
+
+(with-test (:name :base-char-typep-elimination)
+ (assert (eq (funcall (lambda (ch)
+ (declare (type base-char ch) (optimize (speed 3) (safety 0)))
+ (typep ch 'base-char))
+ t)
+ t)))
+
+(with-test (:name :regression-1.0.24.37)
+ (compile nil '(lambda (&key (test (constantly t)))
+ (when (funcall test)
+ :quux))))
+
+;;; Attempt to test a decent cross section of conditions
+;;; and values types to move conditionally.
+(macrolet
+ ((test-comparison (comparator type x y)
+ `(progn
+ ,@(loop for (result-type a b)
+ in '((nil t nil)
+ (nil 0 1)
+ (nil 0.0 1.0)
+ (nil 0d0 0d0)
+ (nil 0.0 0d0)
+ (nil #c(1.0 1.0) #c(2.0 2.0))
+
+ (t t nil)
+ (fixnum 0 1)
+ ((unsigned-byte #.sb-vm:n-word-bits)
+ (1+ most-positive-fixnum)
+ (+ 2 most-positive-fixnum))
+ ((signed-byte #.sb-vm:n-word-bits)
+ -1 (* 2 most-negative-fixnum))
+ (single-float 0.0 1.0)
+ (double-float 0d0 1d0))
+ for lambda = (if result-type
+ `(lambda (x y a b)
+ (declare (,type x y)
+ (,result-type a b))
+ (if (,comparator x y)
+ a b))
+ `(lambda (x y)
+ (declare (,type x y))
+ (if (,comparator x y)
+ ,a ,b)))
+ for args = `(,x ,y ,@(and result-type
+ `(,a ,b)))
+ collect
+ `(progn
+ (eql (funcall (compile nil ',lambda)
+ ,@args)
+ (eval '(,lambda ,@args))))))))
+ (sb-vm::with-float-traps-masked
+ (:divide-by-zero :overflow :inexact :invalid)
+ (let ((sb-ext:*evaluator-mode* :interpret))
+ (declare (sb-ext:muffle-conditions style-warning))
+ (test-comparison eql t t nil)
+ (test-comparison eql t t t)
+
+ (test-comparison = t 1 0)
+ (test-comparison = t 1 1)
+ (test-comparison = t (1+ most-positive-fixnum) (+ 2 most-positive-fixnum))
+ (test-comparison = fixnum 1 0)
+ (test-comparison = fixnum 0 0)
+ (test-comparison = (unsigned-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison = (unsigned-byte #.sb-vm:n-word-bits) 0 0)
+ (test-comparison = (signed-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison = (signed-byte #.sb-vm:n-word-bits) 1 1)
+
+ (test-comparison = single-float 0.0 1.0)
+ (test-comparison = single-float 1.0 1.0)
+ (test-comparison = single-float (/ 1.0 0.0) (/ 1.0 0.0))
+ (test-comparison = single-float (/ 1.0 0.0) 1.0)
+ (test-comparison = single-float (/ 0.0 0.0) (/ 0.0 0.0))
+ (test-comparison = single-float (/ 0.0 0.0) 0.0)
+
+ (test-comparison = double-float 0d0 1d0)
+ (test-comparison = double-float 1d0 1d0)
+ (test-comparison = double-float (/ 1d0 0d0) (/ 1d0 0d0))
+ (test-comparison = double-float (/ 1d0 0d0) 1d0)
+ (test-comparison = double-float (/ 0d0 0d0) (/ 0d0 0d0))
+ (test-comparison = double-float (/ 0d0 0d0) 0d0)
+
+ (test-comparison < t 1 0)
+ (test-comparison < t 0 1)
+ (test-comparison < t 1 1)
+ (test-comparison < t (1+ most-positive-fixnum) (+ 2 most-positive-fixnum))
+ (test-comparison < t (+ 2 most-positive-fixnum) (1+ most-positive-fixnum))
+ (test-comparison < fixnum 1 0)
+ (test-comparison < fixnum 0 1)
+ (test-comparison < fixnum 0 0)
+ (test-comparison < (unsigned-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison < (unsigned-byte #.sb-vm:n-word-bits) 0 1)
+ (test-comparison < (unsigned-byte #.sb-vm:n-word-bits) 0 0)
+ (test-comparison < (signed-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison < (signed-byte #.sb-vm:n-word-bits) 0 1)
+ (test-comparison < (signed-byte #.sb-vm:n-word-bits) 1 1)
+
+ (test-comparison < single-float 0.0 1.0)
+ (test-comparison < single-float 1.0 0.0)
+ (test-comparison < single-float 1.0 1.0)
+ (test-comparison < single-float (/ 1.0 0.0) (/ 1.0 0.0))
+ (test-comparison < single-float (/ 1.0 0.0) 1.0)
+ (test-comparison < single-float 1.0 (/ 1.0 0.0))
+ (test-comparison < single-float (/ 0.0 0.0) (/ 0.0 0.0))
+ (test-comparison < single-float (/ 0.0 0.0) 0.0)
+
+ (test-comparison < double-float 0d0 1d0)
+ (test-comparison < double-float 1d0 0d0)
+ (test-comparison < double-float 1d0 1d0)
+ (test-comparison < double-float (/ 1d0 0d0) (/ 1d0 0d0))
+ (test-comparison < double-float (/ 1d0 0d0) 1d0)
+ (test-comparison < double-float 1d0 (/ 1d0 0d0))
+ (test-comparison < double-float (/ 0d0 0d0) (/ 0d0 0d0))
+ (test-comparison < double-float (/ 0d0 0d0) 0d0)
+ (test-comparison < double-float 0d0 (/ 0d0 0d0))
+
+ (test-comparison > t 1 0)
+ (test-comparison > t 0 1)
+ (test-comparison > t 1 1)
+ (test-comparison > t (1+ most-positive-fixnum) (+ 2 most-positive-fixnum))
+ (test-comparison > t (+ 2 most-positive-fixnum) (1+ most-positive-fixnum))
+ (test-comparison > fixnum 1 0)
+ (test-comparison > fixnum 0 1)
+ (test-comparison > fixnum 0 0)
+ (test-comparison > (unsigned-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison > (unsigned-byte #.sb-vm:n-word-bits) 0 1)
+ (test-comparison > (unsigned-byte #.sb-vm:n-word-bits) 0 0)
+ (test-comparison > (signed-byte #.sb-vm:n-word-bits) 1 0)
+ (test-comparison > (signed-byte #.sb-vm:n-word-bits) 0 1)
+ (test-comparison > (signed-byte #.sb-vm:n-word-bits) 1 1)
+
+ (test-comparison > single-float 0.0 1.0)
+ (test-comparison > single-float 1.0 0.0)
+ (test-comparison > single-float 1.0 1.0)
+ (test-comparison > single-float (/ 1.0 0.0) (/ 1.0 0.0))
+ (test-comparison > single-float (/ 1.0 0.0) 1.0)
+ (test-comparison > single-float 1.0 (/ 1.0 0.0))
+ (test-comparison > single-float (/ 0.0 0.0) (/ 0.0 0.0))
+ (test-comparison > single-float (/ 0.0 0.0) 0.0)
+
+ (test-comparison > double-float 0d0 1d0)
+ (test-comparison > double-float 1d0 0d0)
+ (test-comparison > double-float 1d0 1d0)
+ (test-comparison > double-float (/ 1d0 0d0) (/ 1d0 0d0))
+ (test-comparison > double-float (/ 1d0 0d0) 1d0)
+ (test-comparison > double-float 1d0 (/ 1d0 0d0))
+ (test-comparison > double-float (/ 0d0 0d0) (/ 0d0 0d0))
+ (test-comparison > double-float (/ 0d0 0d0) 0d0)
+ (test-comparison > double-float 0d0 (/ 0d0 0d0)))))
+
+(with-test (:name :car-and-cdr-type-derivation-conservative)
+ (let ((f1 (compile nil
+ `(lambda (y)
+ (declare (optimize speed))
+ (let ((x (the (cons fixnum fixnum) (cons 1 2))))
+ (declare (type (cons t fixnum) x))
+ (rplaca x y)
+ (+ (car x) (cdr x))))))
+ (f2 (compile nil
+ `(lambda (y)
+ (declare (optimize speed))
+ (let ((x (the (cons fixnum fixnum) (cons 1 2))))
+ (setf (cdr x) y)
+ (+ (car x) (cdr x)))))))
+ (flet ((test-error (e value)
+ (assert (typep e 'type-error))
+ (assert (eq 'number (type-error-expected-type e)))
+ (assert (eq value (type-error-datum e)))))
+ (let ((v1 "foo")
+ (v2 "bar"))
+ (multiple-value-bind (res err) (ignore-errors (funcall f1 v1))
+ (assert (not res))
+ (test-error err v1))
+ (multiple-value-bind (res err) (ignore-errors (funcall f2 v2))
+ (assert (not res))
+ (test-error err v2))))))
+
+(with-test (:name :array-dimension-derivation-conservative)
+ (let ((f (compile nil
+ `(lambda (x)
+ (declare (optimize speed))
+ (declare (type (array * (4 4)) x))
+ (let ((y x))
+ (setq x (make-array '(4 4)))
+ (adjust-array y '(3 5))
+ (array-dimension y 0))))))
+ (assert (= 3 (funcall f (make-array '(4 4) :adjustable t))))))
+
+(with-test (:name :with-timeout-code-deletion-note)
+ (handler-bind ((sb-ext:code-deletion-note #'error))
+ (compile nil `(lambda ()
+ (sb-ext:with-timeout 0
+ (sleep 1))))))
+
+(with-test (:name :full-warning-for-undefined-type-in-cl)
+ (assert (eq :full
+ (handler-case
+ (compile nil `(lambda (x) (the replace x)))
+ (style-warning ()
+ :style)
+ (warning ()
+ :full)))))
+
+(with-test (:name :single-warning-for-single-undefined-type)
+ (let ((n 0))
+ (handler-bind ((warning (lambda (c)
+ (declare (ignore c))
+ (incf n))))
+ (compile nil `(lambda (x) (the #:no-type x)))
+ (assert (= 1 n))
+ (compile nil `(lambda (x) (the 'fixnum x)))
+ (assert (= 2 n)))))
+
+(with-test (:name :complex-subtype-dumping-in-xc)
+ (assert
+ (= sb-vm:complex-single-float-widetag
+ (sb-kernel:widetag-of
+ (sb-vm:saetp-initial-element-default (sb-c::find-saetp '(complex single-float))))))
+ (assert
+ (= sb-vm:complex-double-float-widetag
+ (sb-kernel:widetag-of
+ (sb-vm:saetp-initial-element-default (sb-c::find-saetp '(complex double-float)))))))
+
+(with-test (:name :complex-single-float-fill)
+ (assert (every (lambda (x) (= #c(1.0 2.0) x))
+ (funcall
+ (compile nil
+ `(lambda (n x)
+ (make-array (list n)
+ :element-type '(complex single-float)
+ :initial-element x)))
+ 10
+ #c(1.0 2.0)))))
+
+(with-test (:name :regression-1.0.28.21)
+ (let ((fun (compile nil `(lambda (x) (typep x '(simple-array * 1))))))
+ (assert (funcall fun (vector 1 2 3)))
+ (assert (funcall fun "abc"))
+ (assert (not (funcall fun (make-array '(2 2)))))))
+
+(with-test (:name :no-silly-compiler-notes-from-character-function)
+ (let (current)
+ (handler-bind ((compiler-note (lambda (e) (error "~S: ~A" current e))))
+ (dolist (name '(char-code char-int character char-name standard-char-p
+ graphic-char-p alpha-char-p upper-case-p lower-case-p
+ both-case-p digit-char-p alphanumericp digit-char-p))
+ (setf current name)
+ (compile nil `(lambda (x)
+ (declare (character x) (optimize speed))
+ (,name x))))
+ (dolist (name '(char= char/= char< char> char<= char>= char-equal
+ char-not-equal char-lessp char-greaterp char-not-greaterp
+ char-not-lessp))
+ (setf current name)
+ (compile nil `(lambda (x y)
+ (declare (character x y) (optimize speed))
+ (,name x y)))))))
+
+;;; optimizing make-array
+(with-test (:name (make-array :open-code-initial-contents))
+ (assert (not (ctu:find-named-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '(3) :initial-contents (list x y z)))))))
+ (assert (not (ctu:find-named-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '3 :initial-contents (vector x y z)))))))
+ (assert (not (ctu:find-named-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '3 :initial-contents `(,x ,y ,z))))))))
+
+;;; optimizing array-in-bounds-p
+(with-test (:name :optimize-array-in-bounds-p)
+ (locally
+ (macrolet ((find-callees (&body body)
+ `(ctu:find-named-callees
+ (compile nil
+ '(lambda ()
+ ,@body))
+ :name 'array-in-bounds-p))
+ (must-optimize (&body exprs)
+ `(progn
+ ,@(loop for expr in exprs
+ collect `(assert (not (find-callees
+ ,expr))))))
+ (must-not-optimize (&body exprs)
+ `(progn
+ ,@(loop for expr in exprs
+ collect `(assert (find-callees
+ ,expr))))))
+ (must-optimize
+ ;; in bounds
+ (let ((a (make-array '(1))))
+ (array-in-bounds-p a 0))
+ ;; exceeds upper bound (constant)
+ (let ((a (make-array '(1))))
+ (array-in-bounds-p a 1))
+ ;; exceeds upper bound (interval)
+ (let ((a (make-array '(1))))
+ (array-in-bounds-p a (+ 1 (random 2))))
+ ;; negative lower bound (constant)
+ (let ((a (make-array '(1))))
+ (array-in-bounds-p a -1))
+ ;; negative lower bound (interval)
+ (let ((a (make-array 3))
+ (i (- (random 1) 20)))
+ (array-in-bounds-p a i))
+ ;; multiple known dimensions
+ (let ((a (make-array '(1 1))))
+ (array-in-bounds-p a 0 0))
+ ;; union types
+ (let ((s (the (simple-string 10) (eval "0123456789"))))
+ (array-in-bounds-p s 9)))
+ (must-not-optimize
+ ;; don't trust non-simple array length in safety=1
+ (let ((a (the (array * (10)) (make-array 10 :adjustable t))))
+ (eval `(adjust-array ,a 0))
+ (array-in-bounds-p a 9))
+ ;; same for a union type
+ (let ((s (the (string 10) (make-array 10
+ :element-type 'character
+ :adjustable t))))
+ (eval `(adjust-array ,s 0))
+ (array-in-bounds-p s 9))
+ ;; single unknown dimension
+ (let ((a (make-array (random 20))))
+ (array-in-bounds-p a 10))
+ ;; multiple unknown dimensions
+ (let ((a (make-array (list (random 20) (random 5)))))
+ (array-in-bounds-p a 5 2))
+ ;; some other known dimensions
+ (let ((a (make-array (list 1 (random 5)))))
+ (array-in-bounds-p a 0 2))
+ ;; subscript might be negative
+ (let ((a (make-array 5)))
+ (array-in-bounds-p a (- (random 3) 2)))
+ ;; subscript might be too large
+ (let ((a (make-array 5)))
+ (array-in-bounds-p a (random 6)))
+ ;; unknown upper bound
+ (let ((a (make-array 5)))
+ (array-in-bounds-p a (get-universal-time)))
+ ;; unknown lower bound
+ (let ((a (make-array 5)))
+ (array-in-bounds-p a (- (get-universal-time))))
+ ;; in theory we should be able to optimize
+ ;; the following but the current implementation
+ ;; doesn't cut it because the array type's
+ ;; dimensions get reported as (* *).
+ (let ((a (make-array (list (random 20) 1))))
+ (array-in-bounds-p a 5 2))))))
+
+;;; optimizing (EXPT -1 INTEGER)
+(test-util:with-test (:name (expt minus-one integer))
+ (dolist (x '(-1 -1.0 -1.0d0))
+ (let ((fun (compile nil `(lambda (x) (expt ,x (the fixnum x))))))
+ (assert (not (ctu:find-named-callees fun)))
+ (dotimes (i 12)
+ (if (oddp i)
+ (assert (eql x (funcall fun i)))
+ (assert (eql (- x) (funcall fun i))))))))
+
+(with-test (:name (load-time-value :type-derivation))
+ (flet ((test (type form value-cell-p)
+ (let ((derived (funcall (compile
+ nil
+ `(lambda ()
+ (ctu:compiler-derived-type
+ (load-time-value ,form)))))))
+ (unless (equal type derived)
+ (error "wanted ~S, got ~S" type derived)))))
+ (let ((* 10))
+ (test '(integer 11 11) '(+ * 1) nil))
+ (let ((* "fooo"))
+ (test '(integer 4 4) '(length *) t))))
+
+(with-test (:name :float-division-using-exact-reciprocal)
+ (flet ((test (lambda-form arg res &key (check-insts t))
+ (let* ((fun (compile nil lambda-form))
+ (disassembly (with-output-to-string (s)
+ (disassemble fun :stream s))))
+ ;; Let's make sure there is no division at runtime: for x86 and
+ ;; x86-64 that implies an FDIV, DIVSS, or DIVSD instruction, so
+ ;; look for DIV in the disassembly. It's a terrible KLUDGE, but
+ ;; it works.
+ #+(or x86 x86-64)
+ (when check-insts
+ (assert (not (search "DIV" disassembly))))
+ ;; No generic arithmetic!
+ (assert (not (search "GENERIC" disassembly)))
+ (assert (eql res (funcall fun arg))))))
+ (dolist (c '(128 64 32 16 8 4 2 1 1/2 1/4 1/8 1/16 1/32 1/64))
+ (dolist (type '(single-float double-float))
+ (let* ((cf (coerce c type))
+ (arg (- (random (* 2 cf)) cf))
+ (r1 (eval `(/ ,arg ,cf)))
+ (r2 (eval `(/ ,arg ,(- cf)))))
+ (test `(lambda (x) (declare (,type x)) (/ x ,cf)) arg r1)
+ (test `(lambda (x) (declare (,type x)) (/ x ,(- cf))) arg r2)
+ ;; rational args should get optimized as well
+ (test `(lambda (x) (declare (,type x)) (/ x ,c)) arg r1)
+ (test `(lambda (x) (declare (,type x)) (/ x ,(- c))) arg r2))))
+ ;; Also check that inexact reciprocals (1) are not used by default (2) are
+ ;; used with FLOAT-ACCURACY=0.
+ (dolist (type '(single-float double-float))
+ (let ((trey (coerce 3 type))
+ (one (coerce 1 type)))
+ (test `(lambda (x) (declare (,type x)) (/ x 3)) trey one
+ :check-insts nil)
+ (test `(lambda (x)
+ (declare (,type x)
+ (optimize (sb-c::float-accuracy 0)))
+ (/ x 3))
+ trey (eval `(* ,trey (/ ,trey))))))))
+
+(with-test (:name :float-multiplication-by-one)
+ (flet ((test (lambda-form arg &optional (result arg))
+ (let* ((fun1 (compile nil lambda-form))
+ (fun2 (funcall (compile nil `(lambda ()
+ (declare (optimize (sb-c::float-accuracy 0)))
+ ,lambda-form))))
+ (disassembly1 (with-output-to-string (s)
+ (disassemble fun1 :stream s)))
+ (disassembly2 (with-output-to-string (s)
+ (disassemble fun2 :stream s))))
+ ;; Multiplication at runtime should be eliminated only with
+ ;; FLOAT-ACCURACY=0. (To catch SNaNs.)
+ #+(or x86 x86-64)
+ (assert (and (search "MUL" disassembly1)
+ (not (search "MUL" disassembly2))))
+ ;; Not generic arithmetic, please!
+ (assert (and (not (search "GENERIC" disassembly1))
+ (not (search "GENERIC" disassembly2))))
+ (assert (eql result (funcall fun1 arg)))
+ (assert (eql result (funcall fun2 arg))))))
+ (dolist (type '(single-float double-float))
+ (let* ((one (coerce 1 type))
+ (arg (random (* 2 one)))
+ (-r (- arg)))
+ (test `(lambda (x) (declare (,type x)) (* x 1)) arg)
+ (test `(lambda (x) (declare (,type x)) (* x -1)) arg -r)
+ (test `(lambda (x) (declare (,type x)) (* x ,one)) arg)
+ (test `(lambda (x) (declare (,type x)) (* x ,(- one))) arg -r)))))
+
+(with-test (:name :float-addition-of-zero)
+ (flet ((test (lambda-form arg &optional (result arg))
+ (let* ((fun1 (compile nil lambda-form))
+ (fun2 (funcall (compile nil `(lambda ()
+ (declare (optimize (sb-c::float-accuracy 0)))
+ ,lambda-form))))
+ (disassembly1 (with-output-to-string (s)
+ (disassemble fun1 :stream s)))
+ (disassembly2 (with-output-to-string (s)
+ (disassemble fun2 :stream s))))
+ ;; Let's make sure there is no addition at runtime: for x86 and
+ ;; x86-64 that implies an FADD, ADDSS, or ADDSD instruction, so
+ ;; look for the ADDs in the disassembly. It's a terrible KLUDGE,
+ ;; but it works. Unless FLOAT-ACCURACY is zero, we leave the
+ ;; addition in to catch SNaNs.
+ #+x86
+ (assert (and (search "FADD" disassembly1)
+ (not (search "FADD" disassembly2))))
+ #+x86-64
+ (let ((inst (if (typep result 'double-float)
+ "ADDSD" "ADDSS")))
+ (assert (and (search inst disassembly1)
+ (not (search inst disassembly2)))))
+ (assert (eql result (funcall fun1 arg)))
+ (assert (eql result (funcall fun2 arg))))))
+ (test `(lambda (x) (declare (single-float x)) (+ x 0)) 123.45)
+ (test `(lambda (x) (declare (single-float x)) (+ x 0.0)) 543.21)
+ (test `(lambda (x) (declare (single-float x)) (+ x 0.0d0)) 42.00 42.d0)
+ (test `(lambda (x) (declare (double-float x)) (+ x 0)) 123.45d0)
+ (test `(lambda (x) (declare (double-float x)) (+ x 0.0)) 543.21d0)
+ (test `(lambda (x) (declare (double-float x)) (+ x 0.0d0)) 42.d0)))
+
+(with-test (:name :float-substraction-of-zero)
+ (flet ((test (lambda-form arg &optional (result arg))
+ (let* ((fun1 (compile nil lambda-form))
+ (fun2 (funcall (compile nil `(lambda ()
+ (declare (optimize (sb-c::float-accuracy 0)))
+ ,lambda-form))))
+ (disassembly1 (with-output-to-string (s)
+ (disassemble fun1 :stream s)))
+ (disassembly2 (with-output-to-string (s)
+ (disassemble fun2 :stream s))))
+ ;; Let's make sure there is no substraction at runtime: for x86
+ ;; and x86-64 that implies an FSUB, SUBSS, or SUBSD instruction,
+ ;; so look for SUB in the disassembly. It's a terrible KLUDGE,
+ ;; but it works. Unless FLOAT-ACCURACY is zero, we leave the
+ ;; substraction in in to catch SNaNs.
+ #+x86
+ (assert (and (search "FSUB" disassembly1)
+ (not (search "FSUB" disassembly2))))
+ #+x86-64
+ (let ((inst (if (typep result 'double-float)
+ "SUBSD" "SUBSS")))
+ (assert (and (search inst disassembly1)
+ (not (search inst disassembly2)))))
+ (assert (eql result (funcall fun1 arg)))
+ (assert (eql result (funcall fun2 arg))))))
+ (test `(lambda (x) (declare (single-float x)) (- x 0)) 123.45)
+ (test `(lambda (x) (declare (single-float x)) (- x 0.0)) 543.21)
+ (test `(lambda (x) (declare (single-float x)) (- x 0.0d0)) 42.00 42.d0)
+ (test `(lambda (x) (declare (double-float x)) (- x 0)) 123.45d0)
+ (test `(lambda (x) (declare (double-float x)) (- x 0.0)) 543.21d0)
+ (test `(lambda (x) (declare (double-float x)) (- x 0.0d0)) 42.d0)))
+
+(with-test (:name :float-multiplication-by-two)
+ (flet ((test (lambda-form arg &optional (result arg))
+ (let* ((fun1 (compile nil lambda-form))
+ (fun2 (funcall (compile nil `(lambda ()
+ (declare (optimize (sb-c::float-accuracy 0)))
+ ,lambda-form))))
+ (disassembly1 (with-output-to-string (s)
+ (disassemble fun1 :stream s)))
+ (disassembly2 (with-output-to-string (s)
+ (disassemble fun2 :stream s))))
+ ;; Let's make sure there is no multiplication at runtime: for x86
+ ;; and x86-64 that implies an FMUL, MULSS, or MULSD instruction,
+ ;; so look for MUL in the disassembly. It's a terrible KLUDGE,
+ ;; but it works.
+ #+(or x86 x86-64)
+ (assert (and (not (search "MUL" disassembly1))
+ (not (search "MUL" disassembly2))))
+ (assert (eql result (funcall fun1 arg)))
+ (assert (eql result (funcall fun2 arg))))))
+ (test `(lambda (x) (declare (single-float x)) (* x 2)) 123.45 246.9)
+ (test `(lambda (x) (declare (single-float x)) (* x 2.0)) 543.21 1086.42)
+ (test `(lambda (x) (declare (single-float x)) (* x 2.0d0)) 42.00 84.d0)
+ (test `(lambda (x) (declare (double-float x)) (* x 2)) 123.45d0 246.9d0)
+ (test `(lambda (x) (declare (double-float x)) (* x 2.0)) 543.21d0 1086.42d0)
+ (test `(lambda (x) (declare (double-float x)) (* x 2.0d0)) 42.0d0 84.0d0)))
projects / sbcl.git / blobdiff