tests/dynamic-extent.impure.lisp

   1 ;;;; tests that dynamic-extent functionality works.
   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 (when (eq sb-ext:*evaluator-mode* :interpret)
  15   (sb-ext:exit :code 104))
  16
  17 (load "compiler-test-util.lisp")
  18 (use-package :ctu)
  19
  20 (setq sb-c::*check-consistency* t
  21       sb-ext:*stack-allocate-dynamic-extent* t)
  22
  23 (defun crashme (a)
  24   (declare (optimize (speed 3) (safety 0) (space 0)))
  25   (declare (muffle-conditions style-warning)) ; re F1 and F2
  26   (restart-case
  27       (progn (ignore-errors (error "Foo")) (write-char #\.))
  28     (retry () (f1 a))
  29     (use-value (new) (f2 new))))
  30
  31 ;; lp#1530390
  32 (with-test (:name :do-not-dxify-restarts)
  33   (let ((a (make-array 100))) (unwind-protect (crashme 'bork) (fill a 0)))
  34   (let ((a (make-array 100))) (unwind-protect (crashme 'bork) (fill a 0)))
  35   (let ((a (make-array 100))) (unwind-protect (crashme 'bork) (fill a 0)))
  36   (let ((a (make-array 100))) (unwind-protect (crashme 'bork) (fill a 0)))
  37   )
  38
  39 (defmacro defun-with-dx (name arglist &body body)
  40   (let ((debug-name (sb-int:symbolicate name "-HIGH-DEBUG"))
  41         (default-name (sb-int:symbolicate name "-DEFAULT")))
  42     `(progn
  43        (defun ,debug-name ,arglist
  44          (declare (optimize debug))
  45          ,@body)
  46        (defun ,default-name ,arglist
  47         ,@body)
  48        (defun ,name (&rest args)
  49          (apply #',debug-name args)
  50          (apply #',default-name args)))))
  51
  52 (declaim (notinline opaque-identity))
  53 (defun opaque-identity (x)
  54   x)
  55
  56 ;;; &REST lists
  57
  58 (defun-with-dx dxlength (&rest rest)
  59   (declare (dynamic-extent rest))
  60   (length rest))
  61
  62 (with-test (:name (:dx-&rest :basics))
  63   (assert (= (dxlength 1 2 3) 3))
  64   (assert (= (dxlength t t t t t t) 6))
  65   (assert (= (dxlength) 0)))
  66
  67 (defun callee (list)
  68   (destructuring-bind (a b c d e f &rest g) list
  69     (+ a b c d e f (length g))))
  70
  71 (defun-with-dx dxcaller (&rest rest)
  72   (declare (dynamic-extent rest))
  73   (callee rest))
  74
  75 (with-test (:name (:dx-&rest :pass-down-to-callee :tail-call))
  76   (assert (= (dxcaller 1 2 3 4 5 6 7) 22)))
  77
  78 (defun-with-dx dxcaller-align-1 (x &rest rest)
  79   (declare (dynamic-extent rest))
  80   (+ x (callee rest)))
  81
  82 (with-test (:name (:dx-&rest :pass-down-to-callee :non-tail-call))
  83   (assert (= (dxcaller-align-1 17 1 2 3 4 5 6 7) 39))
  84   (assert (= (dxcaller-align-1 17 1 2 3 4 5 6 7 8) 40)))
  85
  86 ;;; %NIP-VALUES
  87
  88 (defun-with-dx test-nip-values ()
  89   (flet ((bar (x &rest y)
  90            (declare (dynamic-extent y))
  91            (if (> x 0)
  92                (values x (length y))
  93                (values (car y)))))
  94     (multiple-value-call #'values
  95       (bar 1 2 3 4 5 6)
  96       (bar -1 'a 'b))))
  97
  98 (with-test (:name (:nip-values))
  99   (assert (equal (multiple-value-list (test-nip-values)) '(1 5 a))))
 100
 101 ;;; LET-variable substitution
 102
 103 (defun-with-dx test-let-var-subst1 (x)
 104   (let ((y (list x (1- x))))
 105     (opaque-identity :foo)
 106     (let ((z (the list y)))
 107       (declare (dynamic-extent z))
 108       (length z))))
 109
 110 (with-test (:name (:let-variable-substitution))
 111   (assert (eql (test-let-var-subst1 17) 2)))
 112
 113 (defun-with-dx test-let-var-subst2 (x)
 114   (let ((y (list x (1- x))))
 115     (declare (dynamic-extent y))
 116     (opaque-identity :foo)
 117     (let ((z (the list y)))
 118       (length z))))
 119
 120 (with-test (:name (:let-variable-substitution-2))
 121   (assert (eql (test-let-var-subst2 17) 2)))
 122
 123
 124 ;;; DX propagation through LET-return.
 125
 126 (defun-with-dx test-lvar-subst (x)
 127   (let ((y (list x (1- x))))
 128     (declare (dynamic-extent y))
 129     (second (let ((z (the list y)))
 130               (opaque-identity :foo)
 131               z))))
 132
 133 (with-test (:name (:dx-propagation-through-let-return))
 134   (assert (eql (test-lvar-subst 11) 10)))
 135
 136 ;;; this code is incorrect, but the compiler should not fail
 137 (defun-with-dx test-let-var-subst-incorrect (x)
 138   (let ((y (list x (1- x))))
 139     (opaque-identity :foo)
 140     (let ((z (the list y)))
 141       (declare (dynamic-extent z))
 142       (opaque-identity :bar)
 143       z)))
 144 \f
 145 ;;; alignment
 146
 147 (defvar *x*)
 148 (defun-with-dx test-alignment-dx-list (form)
 149   (multiple-value-prog1 (eval form)
 150     (let ((l (list 1 2 3 4)))
 151       (declare (dynamic-extent l))
 152       (setq *x* (copy-list l)))))
 153
 154 (with-test (:name (:dx-list :alignment))
 155   (dotimes (n 64)
 156     (let* ((res (loop for i below n collect i))
 157            (form `(values ,@res)))
 158       (assert (equal (multiple-value-list (test-alignment-dx-list form)) res))
 159       (assert (equal *x* '(1 2 3 4))))))
 160
 161 ;;; closure
 162
 163 (declaim (notinline true))
 164 (defun true (x)
 165   (declare (ignore x))
 166   t)
 167
 168 (defun-with-dx dxclosure (x)
 169   (flet ((f (y)
 170            (+ y x)))
 171     (declare (dynamic-extent #'f))
 172     (true #'f)))
 173
 174 (with-test (:name (:dx-closure))
 175   (assert (eq t (dxclosure 13))))
 176
 177 ;;; value-cells
 178
 179 (defun-with-dx dx-value-cell (x)
 180   ;; Not implemented everywhere, yet.
 181   #+(or x86 x86-64 mips hppa)
 182   (let ((cell x))
 183     (declare (sb-int:truly-dynamic-extent cell))
 184     (flet ((f ()
 185              (incf cell)))
 186       (declare (dynamic-extent #'f))
 187       (true #'f))))
 188
 189 ;;; CONS
 190
 191 (defun-with-dx cons-on-stack (x)
 192   (let ((cons (cons x x)))
 193     (declare (dynamic-extent cons))
 194     (true cons)
 195     nil))
 196
 197 ;;; MAKE-ARRAY
 198
 199 (defun force-make-array-on-stack (n)
 200   (declare (optimize safety))
 201   (let ((v (make-array (min n 1))))
 202     (declare (sb-int:truly-dynamic-extent v))
 203     (true v)
 204     (true v)
 205     nil))
 206
 207 (defun-with-dx make-array-on-stack-1 ()
 208   (let ((v (make-array '(42) :element-type 'single-float)))
 209     (declare (dynamic-extent v))
 210     (true v)
 211     (true v)
 212     nil))
 213
 214 (defun-with-dx make-array-on-stack-2 (n x)
 215   (declare (integer n))
 216   (let ((v (make-array n :initial-contents x)))
 217     (declare (sb-int:truly-dynamic-extent v))
 218     (true v)
 219     (true v)
 220     nil))
 221
 222 (defun-with-dx make-array-on-stack-3 (x y z)
 223   (let ((v (make-array 3
 224                        :element-type 'fixnum :initial-contents (list x y z)
 225                        :element-type t :initial-contents x)))
 226     (declare (sb-int:truly-dynamic-extent v))
 227     (true v)
 228     (true v)
 229     nil))
 230
 231 (defun-with-dx make-array-on-stack-4 ()
 232   (let ((v (make-array 3 :initial-contents '(1 2 3))))
 233     (declare (sb-int:truly-dynamic-extent v))
 234     (true v)
 235     (true v)
 236     nil))
 237
 238 (defun-with-dx make-array-on-stack-5 ()
 239   (let ((v (make-array 3 :initial-element 12 :element-type t)))
 240     (declare (sb-int:truly-dynamic-extent v))
 241     (true v)
 242     (true v)
 243     nil))
 244
 245 (defun-with-dx make-array-on-stack-6 ()
 246   (let ((v (make-array 3 :initial-element 12 :element-type '(unsigned-byte 8))))
 247     (declare (sb-int:truly-dynamic-extent v))
 248     (true v)
 249     (true v)
 250     nil))
 251
 252 (defun-with-dx make-array-on-stack-7 ()
 253   (let ((v (make-array 3 :initial-element 12 :element-type '(signed-byte 8))))
 254     (declare (sb-int:truly-dynamic-extent v))
 255     (true v)
 256     (true v)
 257     nil))
 258
 259 (defun-with-dx make-array-on-stack-8 ()
 260   (let ((v (make-array 3 :initial-element 12 :element-type 'word)))
 261     (declare (sb-int:truly-dynamic-extent v))
 262     (true v)
 263     (true v)
 264     nil))
 265
 266 (defun-with-dx make-array-on-stack-9 ()
 267   (let ((v (make-array 3 :initial-element 12.0 :element-type 'single-float)))
 268     (declare (sb-int:truly-dynamic-extent v))
 269     (true v)
 270     (true v)
 271     nil))
 272
 273 (defun-with-dx make-array-on-stack-10 ()
 274   (let ((v (make-array 3 :initial-element 12.0d0 :element-type 'double-float)))
 275     (declare (sb-int:truly-dynamic-extent v))
 276     (true v)
 277     (true v)
 278     nil))
 279
 280 (defun-with-dx make-array-on-stack-11 ()
 281   (let ((v (make-array (the integer (opaque-identity 3)) :initial-element 12.0d0 :element-type 'double-float)))
 282     (declare (sb-int:truly-dynamic-extent v))
 283     (true v)
 284     (true v)
 285     nil))
 286
 287 (defun-with-dx vector-on-stack (x y)
 288   (let ((v (vector 1 x 2 y 3)))
 289     (declare (sb-int:truly-dynamic-extent v))
 290     (true v)
 291     nil))
 292
 293 ;;; MAKE-LIST
 294
 295 (declaim (inline make-list-container))
 296 (defstruct list-container listy-slot)
 297 (defun make-var-length-dx-list (n thunk)
 298   (sb-int:dx-let ((s (make-list-container :listy-slot (make-list n))))
 299     (funcall thunk s)))
 300 ;; :stack-allocatable-lists is necessary but not sufficient
 301 (with-test (:name (:dx-list :make-list) :skipped-on '(not :x86-64))
 302   (assert (null (ctu:find-named-callees #'make-var-length-dx-list)))
 303   (assert-no-consing (make-var-length-dx-list
 304                       50 (lambda (x) (declare (ignore x))))))
 305
 306 ;;; MAKE-STRUCTURE
 307
 308 (declaim (inline make-fp-struct-1))
 309 (defstruct fp-struct-1
 310   (s 0.0 :type single-float)
 311   (d 0.0d0 :type double-float))
 312
 313 (defun-with-dx test-fp-struct-1.1 (s d)
 314   d
 315   (let ((fp (make-fp-struct-1 :s s)))
 316     (declare (dynamic-extent fp))
 317     (assert (eql s (fp-struct-1-s fp)))
 318     (assert (eql 0.0d0 (fp-struct-1-d fp)))))
 319
 320 (defun-with-dx test-fp-struct-1.2 (s d)
 321   s
 322   (let ((fp (make-fp-struct-1 :d d)))
 323     (declare (dynamic-extent fp))
 324     (assert (eql 0.0 (fp-struct-1-s fp)))
 325     (assert (eql d (fp-struct-1-d fp)))))
 326
 327 (defun-with-dx test-fp-struct-1.3 (s d)
 328   (let ((fp (make-fp-struct-1 :d d :s s)))
 329     (declare (dynamic-extent fp))
 330     (assert (eql s (fp-struct-1-s fp)))
 331     (assert (eql d (fp-struct-1-d fp)))))
 332
 333 (defun-with-dx test-fp-struct-1.4 (s d)
 334   (let ((fp (make-fp-struct-1 :s s :d d)))
 335     (declare (dynamic-extent fp))
 336     (assert (eql s (fp-struct-1-s fp)))
 337     (assert (eql d (fp-struct-1-d fp)))))
 338
 339 (with-test (:name (:test-fp-struct-1.1))
 340   (test-fp-struct-1.1 123.456 876.243d0))
 341 (with-test (:name (:test-fp-struct-1.2))
 342   (test-fp-struct-1.2 123.456 876.243d0))
 343 (with-test (:name (:test-fp-struct-1.3))
 344   (test-fp-struct-1.3 123.456 876.243d0))
 345 (with-test (:name (:test-fp-struct-1.4))
 346   (test-fp-struct-1.4 123.456 876.243d0))
 347
 348 (declaim (inline make-fp-struct-2))
 349 (defstruct fp-struct-2
 350   (d 0.0d0 :type double-float)
 351   (s 0.0 :type single-float))
 352
 353 (defun-with-dx test-fp-struct-2.1 (s d)
 354   d
 355   (let ((fp (make-fp-struct-2 :s s)))
 356     (declare (dynamic-extent fp))
 357     (assert (eql s (fp-struct-2-s fp)))
 358     (assert (eql 0.0d0 (fp-struct-2-d fp)))))
 359
 360 (defun-with-dx test-fp-struct-2.2 (s d)
 361   s
 362   (let ((fp (make-fp-struct-2 :d d)))
 363     (declare (dynamic-extent fp))
 364     (assert (eql 0.0 (fp-struct-2-s fp)))
 365     (assert (eql d (fp-struct-2-d fp)))))
 366
 367 (defun-with-dx test-fp-struct-2.3 (s d)
 368   (let ((fp (make-fp-struct-2 :d d :s s)))
 369     (declare (dynamic-extent fp))
 370     (assert (eql s (fp-struct-2-s fp)))
 371     (assert (eql d (fp-struct-2-d fp)))))
 372
 373 (defun-with-dx test-fp-struct-2.4 (s d)
 374   (let ((fp (make-fp-struct-2 :s s :d d)))
 375     (declare (dynamic-extent fp))
 376     (assert (eql s (fp-struct-2-s fp)))
 377     (assert (eql d (fp-struct-2-d fp)))))
 378
 379 (with-test (:name (:test-fp-struct-2.1))
 380   (test-fp-struct-2.1 123.456 876.243d0))
 381 (with-test (:name (:test-fp-struct-2.2))
 382   (test-fp-struct-2.2 123.456 876.243d0))
 383 (with-test (:name (:test-fp-struct-2.3))
 384   (test-fp-struct-2.3 123.456 876.243d0))
 385 (with-test (:name (:test-fp-struct-2.4))
 386   (test-fp-struct-2.4 123.456 876.243d0))
 387
 388 (declaim (inline make-cfp-struct-1))
 389 (defstruct cfp-struct-1
 390   (s (complex 0.0) :type (complex single-float))
 391   (d (complex 0.0d0) :type (complex double-float)))
 392
 393 (defun-with-dx test-cfp-struct-1.1 (s d)
 394   d
 395   (let ((cfp (make-cfp-struct-1 :s s)))
 396     (declare (dynamic-extent cfp))
 397     (assert (eql s (cfp-struct-1-s cfp)))
 398     (assert (eql (complex 0.0d0) (cfp-struct-1-d cfp)))))
 399
 400 (defun-with-dx test-cfp-struct-1.2 (s d)
 401   s
 402   (let ((cfp (make-cfp-struct-1 :d d)))
 403     (declare (dynamic-extent cfp))
 404     (assert (eql (complex 0.0) (cfp-struct-1-s cfp)))
 405     (assert (eql d (cfp-struct-1-d cfp)))))
 406
 407 (defun-with-dx test-cfp-struct-1.3 (s d)
 408   (let ((cfp (make-cfp-struct-1 :d d :s s)))
 409     (declare (dynamic-extent cfp))
 410     (assert (eql s (cfp-struct-1-s cfp)))
 411     (assert (eql d (cfp-struct-1-d cfp)))))
 412
 413 (defun-with-dx test-cfp-struct-1.4 (s d)
 414   (let ((cfp (make-cfp-struct-1 :s s :d d)))
 415     (declare (dynamic-extent cfp))
 416     (assert (eql s (cfp-struct-1-s cfp)))
 417     (assert (eql d (cfp-struct-1-d cfp)))))
 418
 419 (with-test (:name (:test-cfp-struct-1.1))
 420   (test-cfp-struct-1.1 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 421 (with-test (:name (:test-cfp-struct-1.2))
 422   (test-cfp-struct-1.2 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 423 (with-test (:name (:test-cfp-struct-1.3))
 424   (test-cfp-struct-1.3 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 425 (with-test (:name (:test-cfp-struct-1.4))
 426   (test-cfp-struct-1.4 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 427
 428 (declaim (inline make-cfp-struct-2))
 429 (defstruct cfp-struct-2
 430   (d (complex 0.0d0) :type (complex double-float))
 431   (s (complex 0.0) :type (complex single-float)))
 432
 433 (defun-with-dx test-cfp-struct-2.1 (s d)
 434   d
 435   (let ((cfp (make-cfp-struct-2 :s s)))
 436     (declare (dynamic-extent cfp))
 437     (assert (eql s (cfp-struct-2-s cfp)))
 438     (assert (eql (complex 0.0d0) (cfp-struct-2-d cfp)))))
 439
 440 (defun-with-dx test-cfp-struct-2.2 (s d)
 441   s
 442   (let ((cfp (make-cfp-struct-2 :d d)))
 443     (declare (dynamic-extent cfp))
 444     (assert (eql (complex 0.0) (cfp-struct-2-s cfp)))
 445     (assert (eql d (cfp-struct-2-d cfp)))))
 446
 447 (defun-with-dx test-cfp-struct-2.3 (s d)
 448   (let ((cfp (make-cfp-struct-2 :d d :s s)))
 449     (declare (dynamic-extent cfp))
 450     (assert (eql s (cfp-struct-2-s cfp)))
 451     (assert (eql d (cfp-struct-2-d cfp)))))
 452
 453 (defun-with-dx test-cfp-struct-2.4 (s d)
 454   (let ((cfp (make-cfp-struct-2 :s s :d d)))
 455     (declare (dynamic-extent cfp))
 456     (assert (eql s (cfp-struct-2-s cfp)))
 457     (assert (eql d (cfp-struct-2-d cfp)))))
 458
 459 (with-test (:name (:test-cfp-struct-2.1))
 460   (test-cfp-struct-2.1 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 461 (with-test (:name (:test-cfp-struct-2.2))
 462   (test-cfp-struct-2.2 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 463 (with-test (:name (:test-cfp-struct-2.3))
 464   (test-cfp-struct-2.3 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 465 (with-test (:name (:test-cfp-struct-2.4))
 466   (test-cfp-struct-2.4 (complex 0.123 123.456) (complex 908132.41d0 876.243d0)))
 467
 468 ;; It works to declare a structure constructor INLINE after the DEFSTRUCT
 469 ;; was processed, as long as it was in the null lexical environment.
 470 ;; In a perfect world, we'd figure out that a variable declared DX which
 471 ;; receives the value of a structure constructor defined in the same file
 472 ;; and neither expressly INLINE nor NOTINLINE should be locally inlined.
 473 ;; But at least this shows that a declaration at the intended use point
 474 ;; is sufficient, without also a bracketing INLINE/NOTINLINE at the DEFSTRUCT.
 475
 476 ;; Verify the precondition for the assertions that claim that DXifying works
 477 ;; even though the MAKE- function was not expressly INLINE when its DEFSTRUCT
 478 ;; was compiled.
 479 (dolist (s '(make-foo1 make-foo2 make-foo3))
 480   (assert (null (sb-int:info :function :inline-expansion-designator s))))
 481
 482 (defstruct foo1 x)
 483
 484 (defun-with-dx make-foo1-on-stack (x)
 485   (declare (inline make-foo1))
 486   (let ((foo (make-foo1 :x x)))
 487     (declare (dynamic-extent foo))
 488     (assert (eql x (foo1-x foo)))))
 489
 490 (defstruct foo2
 491   (x 0.0 :type single-float)
 492   (y 0.0d0 :type double-float)
 493   a
 494   b
 495   c)
 496
 497 (defun-with-dx make-foo2-on-stack (x y)
 498   (declare (inline make-foo2))
 499   x
 500   (let ((foo (make-foo2 :y y :c 'c)))
 501     (declare (dynamic-extent foo))
 502     (assert (eql 0.0 (foo2-x foo)))
 503     (assert (eql y (foo2-y foo)))
 504     (assert (eql 'c (foo2-c foo)))
 505     (assert (eql nil (foo2-b foo)))))
 506
 507 ;;; Check that constants work out as argument for all relevant
 508 ;;; slot types.
 509 (defstruct foo3
 510   (a 0 :type t)
 511   (b 1 :type fixnum)
 512   (c 2 :type sb-vm:word)
 513   (d 3.0 :type single-float)
 514   (e 4.0d0 :type double-float))
 515
 516 (defun-with-dx make-foo3-on-stack ()
 517   (declare (inline make-foo3))
 518   (let ((foo (make-foo3)))
 519     (declare (dynamic-extent foo))
 520     (assert (eql 0 (foo3-a foo)))
 521     (assert (eql 1 (foo3-b foo)))
 522     (assert (eql 2 (foo3-c foo)))
 523     (assert (eql 3.0 (foo3-d foo)))
 524     (assert (eql 4.0d0 (foo3-e foo)))))
 525
 526 ;;; Nested DX
 527
 528 (defun-with-dx nested-dx-lists ()
 529   (let ((dx (list (list 1 2) (list 3 4))))
 530     (declare (dynamic-extent dx))
 531     (true dx)
 532     nil))
 533
 534 (defun-with-dx nested-dx-conses ()
 535   (let ((dx (cons 1 (cons 2 (cons 3 (cons (cons t t) nil))))))
 536     (declare (dynamic-extent dx))
 537     (true dx)
 538     nil))
 539
 540 (defun-with-dx nested-dx-not-used (x)
 541   (declare (list x))
 542   (let ((l (setf (car x) (list x x x))))
 543     (declare (dynamic-extent l))
 544     (true l)
 545     (true (length l))
 546     nil))
 547
 548 (defun-with-dx nested-evil-dx-used (x)
 549   (declare (list x))
 550   (let ((l (list x x x)))
 551     (declare (dynamic-extent l))
 552     (unwind-protect
 553          (progn
 554            (setf (car x) l)
 555            (true l))
 556       (setf (car x) nil))
 557     nil))
 558
 559 (defparameter *bar* nil)
 560 (declaim (inline make-nested-bad make-nested-good))
 561 (defstruct (nested (:constructor make-nested-bad (&key bar &aux (bar (setf *bar* bar))))
 562                    (:constructor make-nested-good (&key bar)))
 563   bar)
 564
 565 (defun-with-dx nested-good (y)
 566   (let ((x (list (list (make-nested-good :bar (list (list (make-nested-good :bar (list y)))))))))
 567     (declare (dynamic-extent x))
 568     (true x)))
 569
 570 (defun-with-dx nested-bad (y)
 571   (let ((x (list (list (make-nested-bad :bar (list (list (make-nested-bad :bar (list y)))))))))
 572     (declare (dynamic-extent x))
 573     (unless (equalp (caar x) (make-nested-good :bar *bar*))
 574       (error "got ~S, wanted ~S" (caar x) (make-nested-good :bar *bar*)))
 575     ;; the NESTED instance itself *should* be DX!
 576     (copy-nested (caar x))))
 577
 578 (with-test (:name :conservative-nested-dx)
 579   ;; NESTED-BAD should not stack-allocate :BAR due to the SETF.
 580   (assert (equalp (nested-bad 42) (make-nested-good :bar *bar*)))
 581   (assert (equalp *bar* (list (list (make-nested-bad :bar (list 42)))))))
 582
 583 ;;; multiple uses for dx lvar
 584
 585 (defun-with-dx multiple-dx-uses ()
 586   (let ((dx (if (true t)
 587                 (list 1 2 3)
 588                 (list 2 3 4))))
 589     (declare (dynamic-extent dx))
 590     (true dx)
 591     nil))
 592
 593 ;;; mapfoo should make the initial cons dx
 594
 595 (defun mapcar-negate (x) (mapcar #'- x))
 596 (defun mapcan-reverse (x) (mapcan #'reverse x))
 597
 598 ;;; handler-case and handler-bind should use DX internally
 599
 600 (defun dx-handler-bind (x)
 601   (handler-bind ((error
 602                   #'(lambda (c)
 603                       (break "OOPS: ~S caused ~S" x c)))
 604                  ((and serious-condition (not error))
 605                   #'(lambda (c)
 606                       (break "OOPS2: ~S did ~S" x c))))
 607     (/ 2 x)))
 608
 609 (defun dx-handler-case (x)
 610   (assert (zerop (handler-case (/ 2 x)
 611                    (error (c)
 612                      (break "OOPS: ~S caused ~S" x c)
 613                      -1)
 614                    (:no-error (res)
 615                      (1- res))))))
 616
 617 (defun list-delete-some-stuff ()
 618   ;; opaque-identity hides the fact that we are calling a destructive function
 619   ;; on a constant, which is technically illegal. But no deletion occurs,
 620   ;; so it's innocuous. Also these aren't tests of DX, but oh well...
 621   (declare (muffle-conditions style-warning))
 622   (delete 'a (opaque-identity '(x y)))
 623   (delete 'a (opaque-identity '(x y)) :from-end t)
 624   (delete-duplicates (opaque-identity '(x y))))
 625
 626 (defvar *a-cons* (cons nil nil))
 627
 628 (with-test (:name (:no-consing :dx-closures) :skipped-on '(not :stack-allocatable-closures))
 629   (assert-no-consing (dxclosure 42)))
 630
 631 (with-test (:name (:no-consing :dx-lists)
 632             :skipped-on '(not (and :stack-allocatable-lists
 633                                :stack-allocatable-fixed-objects)))
 634   (assert-no-consing (dxlength 1 2 3))
 635   (assert-no-consing (dxlength t t t t t t))
 636   (assert-no-consing (dxlength))
 637   (assert-no-consing (dxcaller 1 2 3 4 5 6 7))
 638   (assert-no-consing (test-nip-values))
 639   (assert-no-consing (test-let-var-subst2 17))
 640   (assert-no-consing (test-lvar-subst 11))
 641   (assert-no-consing (nested-dx-lists))
 642   (assert-consing (nested-dx-not-used *a-cons*))
 643   (assert-no-consing (nested-evil-dx-used *a-cons*))
 644   (assert-no-consing (mapcar-negate nil))
 645   (assert-no-consing (mapcan-reverse nil))
 646   (assert-no-consing (list-delete-some-stuff))
 647   (assert-no-consing (multiple-dx-uses)))
 648
 649 (with-test (:name (:no-consing :dx-value-cell)
 650                   :skipped-on '(not :stack-allocatable-closures))
 651   (assert-no-consing (dx-value-cell 13)))
 652
 653 (with-test (:name (:no-consing :dx-fixed-objects)
 654                   :skipped-on '(not (and :stack-allocatable-fixed-objects
 655                                          :stack-allocatable-closures)))
 656   (assert-no-consing (cons-on-stack 42))
 657   (assert-no-consing (make-foo1-on-stack 123))
 658   (assert-no-consing (nested-good 42))
 659   (assert-no-consing (nested-dx-conses))
 660   (assert-no-consing (dx-handler-bind 2))
 661   (assert-no-consing (dx-handler-case 2)))
 662
 663 (with-test (:name (:no-consing :dx-vectors) :skipped-on '(not :stack-allocatable-vectors))
 664   (assert-no-consing (force-make-array-on-stack 128))
 665   (assert-no-consing (make-array-on-stack-2 5 '(1 2.0 3 4.0 5)))
 666   (assert-no-consing (make-array-on-stack-3 9 8 7))
 667   (assert-no-consing (make-array-on-stack-4))
 668   (assert-no-consing (make-array-on-stack-5))
 669   (assert-no-consing (vector-on-stack :x :y)))
 670
 671 (with-test (:name (:no-consing :specialized-dx-vectors)
 672             :skipped-on `(not (and :stack-allocatable-vectors
 673                                    :c-stack-is-control-stack)))
 674   (assert-no-consing (make-array-on-stack-1))
 675   (assert-no-consing (make-array-on-stack-6))
 676   (assert-no-consing (make-array-on-stack-7))
 677   (assert-no-consing (make-array-on-stack-8))
 678   (assert-no-consing (make-array-on-stack-9))
 679   (assert-no-consing (make-array-on-stack-10))
 680   (assert-no-consing (make-array-on-stack-11)))
 681
 682 (with-test (:name (:no-consing :dx-raw-instances) :skipped-on '(or (not :raw-instance-init-vops)
 683                                                                    (not (and :gencgc :c-stack-is-control-stack))))
 684   (let (a b)
 685     (setf a 1.24 b 1.23d0)
 686     (assert-no-consing (make-foo2-on-stack a b)))
 687     (assert-no-consing (make-foo3-on-stack)))
 688
 689 ;;; not really DX, but GETHASH and (SETF GETHASH) should not cons
 690
 691 (defvar *table* (make-hash-table))
 692
 693 (defun test-hash-table ()
 694   (setf (gethash 5 *table*) 13)
 695   (gethash 5 *table*))
 696
 697 (with-test (:name (:no-consing :hash-tables))
 698   (assert-no-consing (test-hash-table)))
 699
 700 ;;; Both with-pinned-objects and without-gcing should not cons
 701
 702 (defun call-without-gcing (fun)
 703   (sb-sys:without-gcing (funcall fun)))
 704
 705 (defun call-with-pinned-object (fun obj)
 706   (sb-sys:with-pinned-objects (obj)
 707     (funcall fun obj)))
 708
 709 (with-test (:name (:no-consing :without-gcing))
 710   (assert-no-consing (call-without-gcing (lambda ()))))
 711
 712 (with-test (:name (:no-consing :with-pinned-objects))
 713   (assert-no-consing (call-with-pinned-object #'identity 42)))
 714
 715 ;;; with-mutex should use DX and not cons
 716
 717 (defvar *mutex* (sb-thread::make-mutex :name "mutexlock"))
 718
 719 (defun test-mutex ()
 720   (sb-thread:with-mutex (*mutex*)
 721     (true *mutex*)))
 722
 723 (with-test (:name (:no-consing :mutex) :skipped-on '(not :sb-thread))
 724   (assert-no-consing (test-mutex)))
 725 \f
 726
 727 ;;; Bugs found by Paul F. Dietz
 728
 729 (with-test (:name (:dx-bug-misc :pfdietz))
 730   (assert
 731    (eq
 732     (funcall
 733      (compile
 734       nil
 735       '(lambda (a b)
 736         (declare (optimize (speed 2) (space 0) (safety 0)
 737                   (debug 1) (compilation-speed 3)))
 738         (let* ((v5 (cons b b)))
 739           (declare (dynamic-extent v5))
 740           v5
 741           a)))
 742      'x 'y)
 743     'x)))
 744
 745 ;;; bug reported by Svein Ove Aas
 746 (defun svein-2005-ii-07 (x y)
 747   (declare (optimize (speed 3) (space 2) (safety 0) (debug 0)))
 748   (let ((args (list* y 1 2 x)))
 749     (declare (dynamic-extent args))
 750     (apply #'aref args)))
 751
 752 (with-test (:name (:dx-bugs-misc :svein-2005-ii-07))
 753   (assert (eql
 754            (svein-2005-ii-07
 755             '(0)
 756             #3A(((1 1 1) (1 1 1) (1 1 1))
 757                 ((1 1 1) (1 1 1) (4 1 1))
 758                 ((1 1 1) (1 1 1) (1 1 1))))
 759            4)))
 760
 761 ;;; bug reported by Brian Downing: stack-allocated arrays were not
 762 ;;; filled with zeroes.
 763 (defun-with-dx bdowning-2005-iv-16 ()
 764   (let ((a (make-array 11 :initial-element 0)))
 765     (declare (dynamic-extent a))
 766     (assert (every (lambda (x) (eql x 0)) a))))
 767
 768 (with-test (:name (:dx-bug-misc :bdowning-2005-iv-16))
 769   #+(or hppa mips x86 x86-64)
 770   (assert-no-consing (bdowning-2005-iv-16))
 771   (bdowning-2005-iv-16))
 772
 773 (declaim (inline my-nconc))
 774 (defun my-nconc (&rest lists)
 775   (declare (dynamic-extent lists))
 776   (apply #'nconc lists))
 777 (defun-with-dx my-nconc-caller (a b c)
 778   (let ((l1 (list a b c))
 779         (l2 (list a b c)))
 780     (my-nconc l1 l2)))
 781 (with-test (:name :rest-stops-the-buck)
 782   (let ((list1 (my-nconc-caller 1 2 3))
 783         (list2 (my-nconc-caller 9 8 7)))
 784     (assert (equal list1 '(1 2 3 1 2 3)))
 785     (assert (equal list2 '(9 8 7 9 8 7)))))
 786
 787 (defun-with-dx let-converted-vars-dx-allocated-bug (x y z)
 788   (let* ((a (list x y z))
 789          (b (list x y z))
 790          (c (list a b)))
 791     (declare (dynamic-extent c))
 792     (values (first c) (second c))))
 793 (with-test (:name :let-converted-vars-dx-allocated-bug)
 794   (multiple-value-bind (i j) (let-converted-vars-dx-allocated-bug 1 2 3)
 795     (assert (and (equal i j)
 796                  (equal i (list 1 2 3))))))
 797
 798 ;;; workaround for bug 419 -- real issue remains, but check that the
 799 ;;; bandaid holds.
 800 (defun-with-dx bug419 (x)
 801   (multiple-value-call #'list
 802     (eval '(values 1 2 3))
 803     (let ((x x))
 804       (declare (dynamic-extent x))
 805       (flet ((mget (y)
 806                (+ x y))
 807              (mset (z)
 808                (incf x z)))
 809         (declare (dynamic-extent #'mget #'mset))
 810         ((lambda (f g) (eval `(progn ,f ,g (values 4 5 6)))) #'mget #'mset)))))
 811
 812 (with-test (:name (:dx-bug-misc :bug419))
 813   (assert (equal (bug419 42) '(1 2 3 4 5 6))))
 814
 815 ;;; Multiple DX arguments in a local function call
 816 (defun test-dx-flet-test (fun n f1 f2 f3)
 817   (let ((res (with-output-to-string (s)
 818                (assert (eql n (ignore-errors (funcall fun s)))))))
 819     (multiple-value-bind (x pos) (read-from-string res nil)
 820       (assert (equalp f1 x))
 821       (multiple-value-bind (y pos2) (read-from-string res nil nil :start pos)
 822         (assert (equalp f2 y))
 823         (assert (equalp f3 (read-from-string res nil nil :start pos2))))))
 824   #+(or hppa mips x86 x86-64)
 825   (assert-no-consing (assert (eql n (funcall fun nil))))
 826   (assert (eql n (funcall fun nil))))
 827
 828 (macrolet ((def (n f1 f2 f3)
 829              (let ((name (sb-pcl::format-symbol :cl-user "DX-FLET-TEST.~A" n)))
 830                `(progn
 831                   (defun-with-dx ,name (s)
 832                     (flet ((f (x)
 833                              (declare (dynamic-extent x))
 834                              (when s
 835                                (print x s)
 836                                (finish-output s))
 837                              nil))
 838                       (f ,f1)
 839                       (f ,f2)
 840                       (f ,f3)
 841                       ,n))
 842                   (with-test (:name (:dx-flet-test ,n))
 843                     (test-dx-flet-test #',name ,n ,f1 ,f2 ,f3))))))
 844   (def 0 (list :one) (list :two) (list :three))
 845   (def 1 (make-array 128) (list 1 2 3 4 5 6 7 8) (list 'list))
 846   (def 2 (list 1) (list 2 3) (list 4 5 6 7)))
 847
 848 ;;; Test that unknown-values coming after a DX value won't mess up the
 849 ;;; stack analysis
 850 (defun test-update-uvl-live-sets (x y z)
 851  (declare (optimize speed (safety 0)))
 852  (flet ((bar (a b)
 853           (declare (dynamic-extent a))
 854           (eval `(list (length ',a) ',b))))
 855    (list (bar x y)
 856          (bar (list x y z)                  ; dx push
 857               (list
 858                (multiple-value-call 'list
 859                  (eval '(values 1 2 3))     ; uv push
 860                  (max y z)
 861                )                            ; uv pop
 862                14)
 863          ))))
 864
 865 (with-test (:name (:update-uvl-live-sets))
 866   (assert (equal '((0 4) (3 ((1 2 3 5) 14)))
 867                  (test-update-uvl-live-sets #() 4 5))))
 868
 869 (with-test (:name :regression-1.0.23.38)
 870   (compile nil '(lambda ()
 871                  (declare (muffle-conditions compiler-note))
 872                  (flet ((make (x y)
 873                           (let ((res (cons x x)))
 874                             (setf (cdr res) y)
 875                             res)))
 876                    (declare (inline make))
 877                    (let ((z (make 1 2)))
 878                      (declare (dynamic-extent z))
 879                      (print z)
 880                      t))))
 881   (compile nil '(lambda ()
 882                  (declare (muffle-conditions compiler-note))
 883                  (flet ((make (x y)
 884                           (let ((res (cons x x)))
 885                             (setf (cdr res) y)
 886                             (if x res y))))
 887                    (declare (inline make))
 888                    (let ((z (make 1 2)))
 889                      (declare (dynamic-extent z))
 890                      (print z)
 891                      t)))))
 892
 893 ;;; On x86 and x86-64 upto 1.0.28.16 LENGTH and WORDS argument
 894 ;;; tns to ALLOCATE-VECTOR-ON-STACK could be packed in the same
 895 ;;; location, leading to all manner of badness. ...reproducing this
 896 ;;; reliably is hard, but this it at least used to break on x86-64.
 897 (defun length-and-words-packed-in-same-tn (m)
 898   (declare (optimize speed (safety 0) (debug 0) (space 0)))
 899   (let ((array (make-array (max 1 m) :element-type 'fixnum)))
 900     (declare (dynamic-extent array))
 901     (array-total-size array)))
 902 (with-test (:name :length-and-words-packed-in-same-tn)
 903   (assert (= 1 (length-and-words-packed-in-same-tn -3))))
 904
 905 (with-test (:name :handler-case-bogus-compiler-note
 906             :skipped-on '(not (and :stack-allocatable-fixed-objects
 907                                    :stack-allocatable-closures)))
 908   (handler-bind
 909       ((compiler-note (lambda (note)
 910                         (error "compiler issued note ~S during test" note))))
 911     ;; Taken from SWANK, used to signal a bogus stack allocation
 912     ;; failure note.
 913     (compile nil
 914              `(lambda (files fasl-dir load)
 915                 (declare (muffle-conditions style-warning))
 916                 (let ((needs-recompile nil))
 917                   (dolist (src files)
 918                     (let ((dest (binary-pathname src fasl-dir)))
 919                       (handler-case
 920                           (progn
 921                             (when (or needs-recompile
 922                                       (not (probe-file dest))
 923                                       (file-newer-p src dest))
 924                               (setq needs-recompile t)
 925                               (ensure-directories-exist dest)
 926                               (compile-file src :output-file dest :print nil :verbose t))
 927                             (when load
 928                               (load dest :verbose t)))
 929                         (serious-condition (c)
 930                           (handle-loadtime-error c dest))))))))))
 931
 932 (declaim (inline foovector barvector))
 933 (defun foovector (x y z)
 934   (let ((v (make-array 3)))
 935     (setf (aref v 0) x
 936           (aref v 1) y
 937           (aref v 2) z)
 938     v))
 939 (defun barvector (x y z)
 940   (make-array 3 :initial-contents (list x y z)))
 941 (with-test (:name :dx-compiler-notes
 942             :skipped-on '(not (and :stack-allocatable-vectors
 943                                    :stack-allocatable-closures)))
 944   (flet ((assert-notes (j lambda)
 945            (let ((n 0))
 946              (handler-bind ((compiler-note (lambda (c)
 947                                              (declare (ignore c))
 948                                              (incf n))))
 949                (let ((*error-output* (make-broadcast-stream)))
 950                  (compile nil lambda))
 951                (unless (= j n)
 952                  (error "Wanted ~S notes, got ~S for~%   ~S"
 953                         j n lambda))))))
 954     ;; These ones should complain.
 955     (assert-notes 1 `(lambda (x)
 956                        (let ((v (make-array x)))
 957                          (declare (dynamic-extent v))
 958                          (length v))))
 959     (assert-notes 2 `(lambda (x)
 960                        (let ((y (if (plusp x)
 961                                     (true x)
 962                                     (true (- x)))))
 963                          (declare (dynamic-extent y))
 964                          (print y)
 965                          nil)))
 966     (assert-notes 1 `(lambda (x)
 967                        (let ((y (foovector x x x)))
 968                          (declare (sb-int:truly-dynamic-extent y))
 969                          (print y)
 970                          nil)))
 971     ;; These ones should not complain.
 972     (assert-notes 0 `(lambda (name)
 973                        (with-alien
 974                            ((posix-getenv (function c-string c-string)
 975                                           :EXTERN "getenv"))
 976                          (values
 977                           (alien-funcall posix-getenv name)))))
 978     (assert-notes 0 `(lambda (x)
 979                        (let ((y (barvector x x x)))
 980                          (declare (dynamic-extent y))
 981                          (print y)
 982                          nil)))
 983     (assert-notes 0 `(lambda (list)
 984                        (declare (optimize (space 0)))
 985                        (sort list (lambda (x y) ; shut unrelated notes up
 986                                     (< (truly-the fixnum x)
 987                                        (truly-the fixnum y))))))
 988     (assert-notes 0 `(lambda (other)
 989                        #'(lambda (s c n)
 990                            (ignore-errors (funcall other s c n)))))))
 991
 992 ;;; Stack allocating a value cell in HANDLER-CASE would blow up stack
 993 ;;; in an unfortunate loop.
 994 (defun handler-case-eating-stack ()
 995   (declare (muffle-conditions warning)) ; "dead code detected ... IR1-PHASES"
 996   (let ((sp nil))
 997     (do ((n 0 (logand most-positive-fixnum (1+ n))))
 998         ((>= n 1024))
 999      (multiple-value-bind (value error) (ignore-errors)
1000        (when (and value error) nil))
1001       (if sp
1002           (assert (= sp (sb-c::%primitive sb-c:current-stack-pointer)))
1003           (setf sp (sb-c::%primitive sb-c:current-stack-pointer))))))
1004 (with-test (:name :handler-case-eating-stack
1005             :skipped-on '(not (and :stack-allocatable-fixed-objects
1006                                    :stack-allocatable-closures)))
1007   (assert-no-consing (handler-case-eating-stack)))
1008
1009 ;;; A nasty bug where RECHECK-DYNAMIC-EXTENT-LVARS thought something was going
1010 ;;; to be stack allocated when it was not, leading to a bogus %NIP-VALUES.
1011 ;;; Fixed by making RECHECK-DYNAMIC-EXTENT-LVARS deal properly with nested DX.
1012 (deftype vec ()
1013   `(simple-array t (3)))
1014 (declaim (ftype (function (t t t) vec) vec))
1015 (declaim (inline vec))
1016 (defun vec (a b c)
1017   (make-array 3 :initial-contents (list a b c)))
1018 (defun bad-boy (vec)
1019   (declare (type vec vec))
1020   (lambda (fun)
1021     (let ((vec (vec (aref vec 0) (aref vec 1) (aref vec 2))))
1022       (declare (dynamic-extent vec))
1023       (funcall fun vec))))
1024 (with-test (:name :recheck-nested-dx-bug
1025             :skipped-on '(not :stack-allocatable-vectors))
1026   (assert (funcall (bad-boy (vec 1.0 2.0 3.3))
1027                    (lambda (vec) (equalp vec (vec 1.0 2.0 3.3)))))
1028   (flet ((foo (x) (declare (ignore x))))
1029     (let ((bad-boy (bad-boy (vec 2.0 3.0 4.0))))
1030       (assert-no-consing (funcall bad-boy #'foo)))))
1031
1032 (with-test (:name :bug-497321)
1033   (flet ((test (lambda type)
1034            (let ((n 0))
1035              (handler-bind ((condition (lambda (c)
1036                                          (incf n)
1037                                          (unless (typep c type)
1038                                            (error "wanted ~S for~%  ~S~%got ~S"
1039                                                   type lambda (type-of c))))))
1040                (let ((*error-output* (make-broadcast-stream)))
1041                  (compile nil lambda)))
1042              (assert (= n 1)))))
1043     (test `(lambda () (declare (dynamic-extent #'bar)))
1044           'style-warning)
1045     (test `(lambda () (declare (dynamic-extent bar)))
1046           'style-warning)
1047     (test `(lambda (bar) (cons bar (lambda () (declare (dynamic-extent bar)))))
1048           'sb-ext:compiler-note)
1049     (test `(lambda ()
1050              (flet ((bar () t))
1051                (cons #'bar (lambda () (declare (dynamic-extent #'bar))))))
1052           'sb-ext:compiler-note)))
1053
1054 (with-test (:name :bug-586105
1055             :skipped-on '(not (and :stack-allocatable-vectors
1056                                :stack-allocatable-lists)))
1057   (flet ((test (x)
1058            (let ((vec1 (make-array 1 :initial-contents (list (list x))))
1059                  (vec2 (make-array 1 :initial-contents `((,x))))
1060                  (vec3 (make-array 1 :initial-contents `#((,x))))
1061                  (vec4 (make-array 1 :initial-contents `(#(,x)))))
1062              (declare (dynamic-extent vec1 vec2 vec3 vec4))
1063              (assert (eql x (car (aref vec1 0))))
1064              (assert (eql x (car (aref vec2 0))))
1065              (assert (eql x (car (aref vec3 0))))
1066              (assert (eql x (elt (aref vec4 0) 0))))))
1067     (assert-no-consing (test 42))))
1068 \f
1069 (defun bug-681092 ()
1070   (declare (optimize speed))
1071   (let ((c 0))
1072     (flet ((bar () c))
1073       (declare (dynamic-extent #'bar))
1074       (do () ((list) (bar))
1075         (setf c 10)
1076         (return (bar))))))
1077 (with-test (:name :bug-681092)
1078   (assert (= 10 (bug-681092))))
1079 \f
1080 ;;;; Including a loop in the flow graph between a DX-allocation and
1081 ;;;; the start of its environment would, for a while, cause executing
1082 ;;;; any of the code in the loop to discard the value.  Found via
1083 ;;;; attempting to DX-allocate an array, which triggered the FILL
1084 ;;;; transform, which inserted such a loop.
1085 (defun bug-1472785 (x)
1086   (let ((y (let ((z (cons nil nil)))
1087              (let ((i 0))
1088                (tagbody
1089                 b1
1090                   (when (= x i) (go b2))
1091                   (incf i)
1092                   (go b1)
1093                 b2))
1094              z))
1095         (w (cons t t)))
1096     (declare (dynamic-extent y w))
1097     (eq y w)))
1098 (with-test (:name :bug-1472785)
1099   (assert (null (bug-1472785 1))))
1100 \f
1101 ;;;; &REST lists should stop DX propagation -- not required by ANSI,
1102 ;;;; but required by sanity.
1103
1104 (declaim (inline rest-stops-dx))
1105 (defun-with-dx rest-stops-dx (&rest args)
1106   (declare (dynamic-extent args))
1107   (apply #'opaque-identity args))
1108
1109 (defun-with-dx rest-stops-dx-ok ()
1110   (equal '(:foo) (rest-stops-dx (list :foo))))
1111
1112 (with-test (:name :rest-stops-dynamic-extent)
1113   (assert (rest-stops-dx-ok)))
1114
1115 ;;;; These tests aren't strictly speaking DX, but rather &REST -> &MORE
1116 ;;;; conversion.
1117 (with-test (:name :rest-to-more-conversion)
1118   (let ((f1 (compile nil `(lambda (f &rest args)
1119                             (apply f args)))))
1120     (assert-no-consing (assert (eql f1 (funcall f1 #'identity f1)))))
1121   (let ((f2 (compile nil `(lambda (f1 f2 &rest args)
1122                             (values (apply f1 args) (apply f2 args))))))
1123     (assert-no-consing (multiple-value-bind (a b)
1124                            (funcall f2 (lambda (x y z) (+ x y z)) (lambda (x y z) (- x y z))
1125                                     1 2 3)
1126                          (assert (and (eql 6 a) (eql -4 b))))))
1127   (let ((f3 (compile nil `(lambda (f &optional x &rest args)
1128                             (when x
1129                               (apply f x args))))))
1130     (assert-no-consing (assert (eql 42 (funcall f3
1131                                                 (lambda (a b c) (+ a b c))
1132                                                 11
1133                                                 10
1134                                                 21)))))
1135   (let ((f4
1136           (let ((*error-output* (make-broadcast-stream)))
1137             (compile nil `(lambda (f &optional x &rest args
1138                                      &key y &allow-other-keys)
1139                             (apply f y x args))))))
1140     (assert-no-consing (funcall f4 (lambda (y x yk y2 b c)
1141                                      (assert (eq y 'y))
1142                                      (assert (= x 2))
1143                                      (assert (eq :y yk))
1144                                      (assert (eq y2 'y))
1145                                      (assert (eq b 'b))
1146                                      (assert (eq c 'c)))
1147                                 2 :y 'y 'b 'c)))
1148   (let ((f5 (compile nil `(lambda (a b c &rest args)
1149                             (apply #'list* a b c args)))))
1150     (assert (equal '(1 2 3 4 5 6 7) (funcall f5 1 2 3 4 5 6 '(7)))))
1151   (let ((f6 (compile nil `(lambda (x y)
1152                             (declare (optimize speed))
1153                             (concatenate 'string x y)))))
1154     (assert (equal "foobar" (funcall f6 "foo" "bar"))))
1155   (let ((f7 (compile nil `(lambda (&rest args)
1156                             (lambda (f)
1157                               (apply f args))))))
1158     (assert (equal '(a b c d e f) (funcall (funcall f7 'a 'b 'c 'd 'e 'f) 'list))))
1159   (let ((f8 (compile nil `(lambda (&rest args)
1160                             (flet ((foo (f)
1161                                      (apply f args)))
1162                               #'foo)))))
1163     (assert (equal '(a b c d e f) (funcall (funcall f8 'a 'b 'c 'd 'e 'f) 'list))))
1164   (let ((f9 (compile nil `(lambda (f &rest args)
1165                             (flet ((foo (g)
1166                                      (apply g args)))
1167                               (declare (dynamic-extent #'foo))
1168                               (funcall f #'foo))))))
1169     (assert (equal '(a b c d e f)
1170                    (funcall f9 (lambda (f) (funcall f 'list)) 'a 'b 'c 'd 'e 'f))))
1171   (let ((f10 (compile nil `(lambda (f &rest args)
1172                             (flet ((foo (g)
1173                                      (apply g args)))
1174                               (funcall f #'foo))))))
1175     (assert (equal '(a b c d e f)
1176                    (funcall f10 (lambda (f) (funcall f 'list)) 'a 'b 'c 'd 'e 'f))))
1177   (let ((f11 (compile nil `(lambda (x y z)
1178                              (block out
1179                                (labels ((foo (x &rest rest)
1180                                           (apply (lambda (&rest rest2)
1181                                                    (return-from out (values-list rest2)))
1182                                                  x rest)))
1183                                 (if x
1184                                     (foo x y z)
1185                                     (foo y z x))))))))
1186     (multiple-value-bind (a b c) (funcall f11 1 2 3)
1187       (assert (eql a 1))
1188       (assert (eql b 2))
1189       (assert (eql c 3)))))
1190
1191 (defun opaque-funcall (function &rest arguments)
1192   (apply function arguments))
1193
1194 (with-test (:name :implicit-value-cells)
1195   (flet ((test-it (type input output)
1196            (let ((f (compile nil `(lambda (x)
1197                                     (declare (type ,type x))
1198                                     (flet ((inc ()
1199                                              (incf x)))
1200                                       (declare (dynamic-extent #'inc))
1201                                       (list (opaque-funcall #'inc) x))))))
1202              (assert (equal (funcall f input)
1203                             (list output output))))))
1204     (let ((width sb-vm:n-word-bits))
1205       (test-it t (1- most-positive-fixnum) most-positive-fixnum)
1206       (test-it `(unsigned-byte ,(1- width)) (ash 1 (- width 2)) (1+ (ash 1 (- width 2))))
1207       (test-it `(signed-byte ,width) (ash -1 (- width 2)) (1+ (ash -1 (- width 2))))
1208       (test-it `(unsigned-byte ,width) (ash 1 (1- width)) (1+ (ash 1 (1- width))))
1209       (test-it 'single-float 3f0 4f0)
1210       (test-it 'double-float 3d0 4d0)
1211       (test-it '(complex single-float) #c(3f0 4f0) #c(4f0 4f0))
1212       (test-it '(complex double-float) #c(3d0 4d0) #c(4d0 4d0)))))
1213
1214 (with-test (:name :sap-implicit-value-cells)
1215   (let ((f (compile nil `(lambda (x)
1216                            (declare (type system-area-pointer x))
1217                            (flet ((inc ()
1218                                     (setf x (sb-sys:sap+ x 16))))
1219                              (declare (dynamic-extent #'inc))
1220                              (list (opaque-funcall #'inc) x)))))
1221         (width sb-vm:n-machine-word-bits))
1222     (assert (every (lambda (x)
1223                      (sb-sys:sap= x (sb-sys:int-sap (+ 16 (ash 1 (1- width))))))
1224                    (funcall f (sb-sys:int-sap (ash 1 (1- width))))))))
1225
1226 (with-test (:name :&more-bounds)
1227   ;; lp#1154946
1228   (assert (not (funcall (compile nil '(lambda (&rest args) (car args))))))
1229   (assert (not (funcall (compile nil '(lambda (&rest args) (nth 6 args))))))
1230   (assert (not (funcall (compile nil '(lambda (&rest args) (elt args 10))))))
1231   (assert (not (funcall (compile nil '(lambda (&rest args) (cadr args))))))
1232   (assert (not (funcall (compile nil '(lambda (&rest args) (third args)))))))