1 ;;;; Utilities for verifying features of compiled code
3 ;;;; This software is part of the SBCL system. See the README file for
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
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.
14 (defpackage :compiler-test-util
16 (:use :cl :sb-c :sb-kernel)
17 (:export #:assert-consing
19 #:compiler-derived-type
21 #:find-value-cell-values
28 (unless (fboundp 'compiler-derived-type)
29 (defknown compiler-derived-type (t) (values t t) (flushable))
30 (deftransform compiler-derived-type ((x) * * :node node)
31 (sb-c::delay-ir1-transform node :optimize)
32 `(values ',(type-specifier (sb-c::lvar-type x)) t))
33 (defun compiler-derived-type (x)
37 (defun find-value-cell-values (fun)
38 (let ((code (fun-code-header (%fun-fun fun))))
39 (loop for i from sb-vm::code-constants-offset below (get-header-data code)
40 for c = (code-header-ref code i)
41 when (= sb-vm::value-cell-header-widetag (widetag-of c))
42 collect (sb-vm::value-cell-ref c))))
44 (defun find-named-callees (fun &key (type t) (name nil namep))
45 (let ((code (sb-kernel:fun-code-header (sb-kernel:%fun-fun fun))))
46 (loop for i from sb-vm::code-constants-offset below (sb-kernel:get-header-data code)
47 for c = (sb-kernel:code-header-ref code i)
48 when (and (typep c 'sb-impl::fdefn)
49 (let ((fun (sb-impl::fdefn-fun c)))
52 (equal name (sb-impl::fdefn-name c))))))
53 collect (sb-impl::fdefn-fun c))))
55 (defun find-code-constants (fun &key (type t))
56 (let ((code (sb-kernel:fun-code-header (sb-kernel:%fun-fun fun))))
57 (loop for i from sb-vm::code-constants-offset below (sb-kernel:get-header-data code)
58 for c = (sb-kernel:code-header-ref code i)
62 (defun collect-consing-stats (thunk times)
63 (declare (type function thunk))
64 (declare (type fixnum times))
65 (let ((before (sb-ext:get-bytes-consed)))
68 (values before (sb-ext:get-bytes-consed))))
70 (defun check-consing (yes/no form thunk times)
71 (multiple-value-bind (before after)
72 (collect-consing-stats thunk times)
73 (let ((consed-bytes (- after before)))
74 (assert (funcall (if yes/no #'not #'identity)
75 ;; I do not know why we do this comparasion,
76 ;; the original code did, so I let it
77 ;; in. Perhaps to prevent losage on GC
78 ;; fluctuations, or something. --TCR.
79 (< consed-bytes times))
81 "~@<Expected the form ~
83 ~:[NOT to cons~;to cons~], yet running it for ~
84 ~D times resulted in the allocation of ~
85 ~D bytes~:[ (~,3F per run)~;~].~@:>"
86 form yes/no times consed-bytes
87 (zerop consed-bytes) (float (/ consed-bytes times))))
88 (values before after)))
90 (defparameter +times+ 10000)
92 (defmacro assert-no-consing (form &optional (times '+times+))
93 `(check-consing nil ',form (lambda () ,form) ,times))
95 (defmacro assert-consing (form &optional (times '+times+))
96 `(check-consing t ',form (lambda () ,form) ,times))
98 (defun file-compile (toplevel-forms &key load)
99 (let* ((lisp (merge-pathnames "file-compile-tmp.lisp"))
100 (fasl (compile-file-pathname lisp)))
103 (with-open-file (f lisp :direction :output)
104 (if (stringp toplevel-forms)
105 (write-line toplevel-forms f)
106 (dolist (form toplevel-forms)
108 (multiple-value-bind (fasl warn fail) (compile-file lisp)
112 (ignore-errors (delete-file lisp))
113 (ignore-errors (delete-file fasl)))))
115 ;; Pretty horrible, but does the job
116 (defun count-full-calls (name function)
117 (let ((code (with-output-to-string (s)
118 (disassemble function :stream s)))
120 (with-input-from-string (s code)
121 (loop for line = (read-line s nil nil)
123 when (and (search name line)
124 (search "#<FDEFINITION" line))