tests/compiler-test-util.lisp

   1 ;;;; Utilities for verifying features of compiled code
   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 (defpackage :compiler-test-util
  15   (:nicknames :ctu)
  16   (:use :cl :sb-c :sb-kernel)
  17   (:export #:compiler-derived-type
  18            #:find-value-cell-values
  19            #:find-named-callees))
  20
  21 (cl:in-package :ctu)
  22
  23 (unless (fboundp 'compiler-derived-type)
  24   (defknown compiler-derived-type (t) (values t t) (movable flushable unsafe))
  25   (deftransform compiler-derived-type ((x) * * :node node)
  26     (sb-c::delay-ir1-transform node :optimize)
  27     `(values ',(type-specifier (sb-c::lvar-type x)) t))
  28   (defun compiler-derived-type (x)
  29     (declare (ignore x))
  30     (values t nil)))
  31
  32 (defun find-value-cell-values (fun)
  33   (let ((code (fun-code-header (%fun-fun fun))))
  34     (loop for i from sb-vm::code-constants-offset below (get-header-data code)
  35           for c = (code-header-ref code i)
  36           when (= sb-vm::value-cell-header-widetag (widetag-of c))
  37           collect (sb-vm::value-cell-ref c))))
  38
  39 (defun find-named-callees (fun &key (type t) (name nil namep))
  40   (let ((code (sb-kernel:fun-code-header (sb-kernel:%fun-fun fun))))
  41     (loop for i from sb-vm::code-constants-offset below (sb-kernel:get-header-data code)
  42           for c = (sb-kernel:code-header-ref code i)
  43           when (and (typep c 'sb-impl::fdefn)
  44                     (let ((fun (sb-impl::fdefn-fun c)))
  45                       (and (typep fun type)
  46                            (or (not namep)
  47                                (equal name (sb-impl::fdefn-name c))))))
  48           collect (sb-impl::fdefn-fun c))))