| 1 | ;;;-*- Mode: Lisp; Package: CCL -*-
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| 2 | ;;;
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| 3 | ;;; Copyright (C) 1994-2001 Digitool, Inc
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| 4 | ;;; This file is part of OpenMCL.
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| 5 | ;;;
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| 6 | ;;; OpenMCL is licensed under the terms of the Lisp Lesser GNU Public
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| 7 | ;;; License , known as the LLGPL and distributed with OpenMCL as the
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| 8 | ;;; file "LICENSE". The LLGPL consists of a preamble and the LGPL,
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| 9 | ;;; which is distributed with OpenMCL as the file "LGPL". Where these
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| 10 | ;;; conflict, the preamble takes precedence.
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| 11 | ;;;
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| 12 | ;;; OpenMCL is referenced in the preamble as the "LIBRARY."
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| 13 | ;;;
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| 14 | ;;; The LLGPL is also available online at
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| 15 | ;;; http://opensource.franz.com/preamble.html
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| 16 |
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| 17 | (in-package "CCL")
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| 18 |
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| 19 | (next-nx-defops)
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| 20 | (defvar *ppc2-specials* nil)
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| 21 | (let* ((newsize (%i+ (next-nx-num-ops) 10))
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| 22 | (old *ppc2-specials*)
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| 23 | (oldsize (length old)))
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| 24 | (declare (fixnum newsize oldsize))
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| 25 | (unless (>= oldsize newsize)
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| 26 | (let* ((v (make-array newsize :initial-element nil)))
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| 27 | (dotimes (i oldsize (setq *ppc2-specials* v))
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| 28 | (setf (svref v i) (svref old i))))))
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| 29 |
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| 30 | ;;; This defines a template. All expressions in the body must be
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| 31 | ;;; evaluable at macroexpansion time.
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| 32 | (defun define-ppc-vinsn (backend vinsn-name results args temps body)
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| 33 | (let* ((opcode-vector (backend-lap-opcodes backend))
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| 34 | (opcode-lookup (backend-lookup-opcode backend))
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| 35 | (opcode-expander (backend-lookup-macro backend))
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| 36 | (backend-name (backend-name backend))
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| 37 | (arch-name (backend-target-arch-name backend))
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| 38 | (template-hash (backend-p2-template-hash-name backend))
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| 39 | (name-list ())
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| 40 | (attrs 0)
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| 41 | (nhybrids 0)
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| 42 | (local-labels ())
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| 43 | (referenced-labels ())
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| 44 | (source-indicator (form-symbol arch-name "-VINSN"))
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| 45 | (opcode-alist ()))
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| 46 | (flet ((valid-spec-name (x)
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| 47 | (or (and (consp x)
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| 48 | (consp (cdr x))
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| 49 | (null (cddr x))
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| 50 | (atom (car x))
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| 51 | (or (assoc (cadr x) *vreg-specifier-constant-constraints* :test #'eq)
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| 52 | (assoc (cadr x) *spec-class-storage-class-alist* :test #'eq)
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| 53 | (eq (cadr x) :label)
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| 54 | (and (consp (cadr x))
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| 55 | (or
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| 56 | (assoc (caadr x) *vreg-specifier-constant-constraints* :test #'eq)
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| 57 | (assoc (caadr x) *spec-class-storage-class-alist* :test #'eq))))
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| 58 | (car x))
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| 59 | (error "Invalid vreg spec: ~s" x)))
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| 60 | (add-spec-name (vname)
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| 61 | (if (member vname name-list :test #'eq)
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| 62 | (error "Duplicate name ~s in vinsn ~s" vname vinsn-name)
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| 63 | (push vname name-list))))
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| 64 | (declare (dynamic-extent valid-spec-name add-spec-name))
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| 65 | (when (consp vinsn-name)
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| 66 | (setq attrs (encode-vinsn-attributes (cdr vinsn-name))
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| 67 | vinsn-name (car vinsn-name)))
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| 68 | (unless (and (symbolp vinsn-name) (eq *CCL-PACKAGE* (symbol-package vinsn-name)))
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| 69 | (setq vinsn-name (intern (string vinsn-name) *CCL-PACKAGE*)))
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| 70 | (dolist (n (append args temps))
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| 71 | (add-spec-name (valid-spec-name n)))
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| 72 | (dolist (form body)
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| 73 | (if (atom form)
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| 74 | (add-spec-name form)))
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| 75 | (setq name-list (nreverse name-list))
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| 76 | ;; We now know that "args" is an alist; we don't know if
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| 77 | ;; "results" is. First, make sure that there are no duplicate
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| 78 | ;; result names (and validate "results".)
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| 79 | (do* ((res results tail)
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| 80 | (tail (cdr res) (cdr tail)))
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| 81 | ((null res))
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| 82 | (let* ((name (valid-spec-name (car res))))
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| 83 | (if (assoc name tail :test #'eq)
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| 84 | (error "Duplicate result name ~s in ~s." name results))))
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| 85 | (let* ((non-hybrid-results ())
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| 86 | (match-args args))
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| 87 | (dolist (res results)
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| 88 | (let* ((res-name (car res)))
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| 89 | (if (not (assoc res-name args :test #'eq))
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| 90 | (if (not (= nhybrids 0))
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| 91 | (error "result ~s should also name an argument. " res-name)
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| 92 | (push res-name non-hybrid-results))
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| 93 | (if (eq res-name (caar match-args))
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| 94 | (setf nhybrids (1+ nhybrids)
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| 95 | match-args (cdr match-args))
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| 96 | (error "~S - hybrid results should appear in same order as arguments." res-name)))))
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| 97 | (dolist (name non-hybrid-results)
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| 98 | (add-spec-name name)))
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| 99 | (let* ((k -1))
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| 100 | (declare (fixnum k))
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| 101 | (let* ((name-alist (mapcar #'(lambda (n) (cons n (list (incf k)))) name-list)))
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| 102 | (flet ((find-name (n)
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| 103 | (let* ((pair (assoc n name-alist :test #'eq)))
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| 104 | (declare (list pair))
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| 105 | (if pair
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| 106 | (cdr pair)
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| 107 | (or (subprim-name->offset n backend)
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| 108 | (error "Unknown name ~s" n))))))
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| 109 | (labels ((simplify-operand (op)
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| 110 | (if (atom op)
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| 111 | (if (typep op 'fixnum)
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| 112 | op
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| 113 | (if (constantp op)
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| 114 | (progn
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| 115 | (if (keywordp op)
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| 116 | (pushnew op referenced-labels))
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| 117 | (eval op))
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| 118 | (find-name op)))
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| 119 | (if (eq (car op) :apply)
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| 120 | `(,(cadr op) ,@(mapcar #'simplify-operand (cddr op)))
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| 121 | (simplify-operand (eval op)))))) ; Handler-case this?
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| 122 | (labels ((simplify-constraint (guard)
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| 123 | ;; A constraint is one of
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| 124 |
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| 125 | ;; (:eq|:lt|:gt vreg-name constant)
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| 126 |
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| 127 | ;; value" of vreg relop constant
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| 128 |
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| 129 | ;; (:pred <function-name> <operand>* ;
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| 130 | ;; <function-name> unquoted, each <operand>
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| 131 | ;; is a vreg-name or constant expression.
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| 132 |
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| 133 | ;; (:type vreg-name typeval) ; vreg is of
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| 134 | ;; "type" typeval
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| 135 | ;;
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| 136 | ;;(:not <constraint>) ; constraint is false
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| 137 | ;; (:and <constraint> ...) ; conjuntion
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| 138 | ;; (:or <constraint> ...) ; disjunction
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| 139 | ;; There's no "else"; we'll see how ugly it
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| 140 | ;; is without one.
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| 141 | (destructuring-bind (guardname &rest others) guard
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| 142 | (ecase guardname
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| 143 | (:not
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| 144 | (destructuring-bind (negation) others
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| 145 | `(:not ,(simplify-constraint negation))))
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| 146 | (:pred
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| 147 | (destructuring-bind (predicate &rest operands) others
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| 148 | `(:pred ,predicate ,@(mapcar #'simplify-operand operands))))
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| 149 | ((:eq :lt :gt :type)
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| 150 | (destructuring-bind (vreg constant) others
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| 151 | (unless (constantp constant)
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| 152 | (error "~S : not constant in constraint ~s ." constant guard))
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| 153 | `(,guardname ,(find-name vreg) ,(eval constant))))
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| 154 | ((:or :and)
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| 155 | (unless others (error "Missing constraint list in ~s ." guard))
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| 156 | `(,guardname ,(mapcar #'simplify-constraint others))))))
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| 157 | (simplify-form (form)
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| 158 | (if (atom form)
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| 159 | (progn
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| 160 | (if (keywordp form) (push form local-labels) )
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| 161 | form)
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| 162 | (destructuring-bind (&whole w opname &rest opvals) form
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| 163 | (if (consp opname) ; A constraint, we presume ...
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| 164 | (cons (simplify-constraint opname)
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| 165 | (mapcar #'simplify-form opvals))
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| 166 | (if (keywordp opname)
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| 167 | form
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| 168 | (let* ((name (string opname))
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| 169 | (opnum (funcall opcode-lookup name)))
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| 170 | (if (and (not opnum) opcode-expander)
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| 171 | (let* ((expander (funcall opcode-expander name)))
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| 172 | (if expander
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| 173 | (simplify-form (funcall expander form nil))
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| 174 | (error "Unknown ~A instruction in ~s" backend-name form)))
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| 175 | (let* ((opcode (if (< -1 opnum (length opcode-vector))
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| 176 | (svref opcode-vector opnum)
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| 177 | (error "~& Invalid ~A opcode: ~s" backend-name name)))
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| 178 | (opvals (mapcar #'simplify-operand opvals)))
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| 179 | (setf (assq opnum opcode-alist) name)
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| 180 | (let* ((operands (opcode-vinsn-operands opcode))
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| 181 | (nmin (opcode-min-vinsn-args opcode))
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| 182 | (nmax (opcode-max-vinsn-args opcode))
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| 183 | (nhave (length opvals)))
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| 184 | (declare (fixnum nreq nhave))
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| 185 | (if (= nhave nmax)
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| 186 | `(,opnum ,@opvals)
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| 187 | (if (> nhave nmax)
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| 188 | (error "Too many operands in ~s (~a accepts at most ~d)"
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| 189 | (cdr w) name nmax)
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| 190 | (if (= nhave nmin)
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| 191 | (let* ((newops ()))
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| 192 | (dolist (op operands `(,opnum ,@(nreverse newops)))
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| 193 | (let* ((flags (operand-flags op)))
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| 194 | (unless (logbitp operand-fake flags)
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| 195 | (push (if (logbitp operand-optional flags)
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| 196 | 0
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| 197 | (pop opvals))
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| 198 | newops)))))
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| 199 | (error "Too few operands in ~s : (~a requires at least ~d)"
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| 200 | (cdr w) name nmin))))))))))))))
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| 201 | (let* ((template (make-vinsn-template
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| 202 | :name vinsn-name
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| 203 | :result-vreg-specs results
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| 204 | :argument-vreg-specs args
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| 205 | :temp-vreg-specs temps
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| 206 | :nhybrids nhybrids
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| 207 | :results&args (append results (nthcdr nhybrids args))
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| 208 | :nvp (- (+ (length results) (length args) (length temps))
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| 209 | nhybrids)
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| 210 | :body (prog1 (mapcar #'simplify-form body)
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| 211 | (dolist (ref referenced-labels)
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| 212 | (unless (memq ref local-labels)
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| 213 | (error
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| 214 | "local label ~S was referenced but never defined in VINSN-TEMPLATE definition for ~s" ref vinsn-name))))
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| 215 | :local-labels local-labels :attributes attrs :opcode-alist
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| 216 | opcode-alist)))
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| 217 | `(progn (set-vinsn-template ',vinsn-name ,template
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| 218 | ,template-hash) (record-source-file ',vinsn-name ',source-indicator)
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| 219 | ',vinsn-name))))))))))
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| 220 |
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| 221 | #+ppc32-target
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| 222 | (require "PPC32-BACKEND")
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| 223 | #+ppc64-target
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| 224 | (require "PPC64-BACKEND")
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| 225 |
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| 226 | (defparameter *ppc-backend*
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| 227 | #+ppc32-target *ppc32-backend*
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| 228 | #+ppc64-target *ppc64-backend*
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| 229 | #-(or ppc32-target ppc64-target)
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| 230 | nil)
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| 231 |
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| 232 |
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| 233 |
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| 234 | (defun fixup-ppc-backend (&rest args)
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| 235 | #+ppc32-target (apply #'fixup-ppc32-backend args)
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| 236 | #+ppc64-target (apply #'fixup-ppc64-backend args))
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| 237 |
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| 238 |
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