1 ;;;; allocation VOPs for the HPPA
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; This software is derived from the CMU CL system, which was
7 ;;;; written at Carnegie Mellon University and released into the
8 ;;;; public domain. The software is in the public domain and is
9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
10 ;;;; files for more information.
17 (define-vop (list-or-list*)
18 (:args (things :more t))
19 (:temporary (:scs (descriptor-reg) :type list) ptr)
20 (:temporary (:scs (descriptor-reg)) temp)
21 (:temporary (:scs (descriptor-reg) :type list :to (:result 0) :target result)
24 (:results (result :scs (descriptor-reg)))
30 (move null-tn result))
32 (move (tn-ref-tn things) result))
38 ((any-reg descriptor-reg zero null)
41 (load-stack-tn temp ,tn)
43 (let* ((cons-cells (if star (1- num) num))
44 (alloc (* (pad-data-block cons-size) cons-cells)))
45 (pseudo-atomic (:extra alloc)
47 (inst dep list-pointer-lowtag 31 3 res)
49 (dotimes (i (1- cons-cells))
50 (storew (maybe-load (tn-ref-tn things)) ptr
51 cons-car-slot list-pointer-lowtag)
52 (setf things (tn-ref-across things))
53 (inst addi (pad-data-block cons-size) ptr ptr)
55 (- cons-cdr-slot cons-size)
57 (storew (maybe-load (tn-ref-tn things)) ptr
58 cons-car-slot list-pointer-lowtag)
60 (maybe-load (tn-ref-tn (tn-ref-across things)))
62 ptr cons-cdr-slot list-pointer-lowtag))
63 (move res result)))))))
66 (define-vop (list list-or-list*)
69 (define-vop (list* list-or-list*)
73 ;;;; Special purpose inline allocators.
75 (define-vop (allocate-code-object)
76 (:args (boxed-arg :scs (any-reg))
77 (unboxed-arg :scs (any-reg)))
78 (:results (result :scs (descriptor-reg)))
79 (:temporary (:scs (non-descriptor-reg)) ndescr)
80 (:temporary (:scs (any-reg) :from (:argument 0)) boxed)
81 (:temporary (:scs (non-descriptor-reg) :from (:argument 1)) unboxed)
83 (inst addi (fixnumize (1+ code-trace-table-offset-slot)) boxed-arg boxed)
84 (inst dep 0 31 3 boxed)
85 (inst srl unboxed-arg word-shift unboxed)
86 (inst addi lowtag-mask unboxed unboxed)
87 (inst dep 0 31 3 unboxed)
89 ;; Note: we don't have to subtract off the 4 that was added by
90 ;; pseudo-atomic, because depositing other-pointer-lowtag just adds
92 (inst move alloc-tn result)
93 (inst dep other-pointer-lowtag 31 3 result)
94 (inst add alloc-tn boxed alloc-tn)
95 (inst add alloc-tn unboxed alloc-tn)
96 (inst sll boxed (- n-widetag-bits word-shift) ndescr)
97 (inst addi code-header-widetag ndescr ndescr)
98 (storew ndescr result 0 other-pointer-lowtag)
99 (storew unboxed result code-code-size-slot other-pointer-lowtag)
100 (storew null-tn result code-entry-points-slot other-pointer-lowtag)
101 (storew null-tn result code-debug-info-slot other-pointer-lowtag))))
103 (define-vop (make-fdefn)
104 (:args (name :scs (descriptor-reg) :to :eval))
105 (:temporary (:scs (non-descriptor-reg)) temp)
106 (:results (result :scs (descriptor-reg) :from :argument))
108 (:translate make-fdefn)
110 (with-fixed-allocation (result temp fdefn-widetag fdefn-size)
111 (inst li (make-fixup "undefined_tramp" :foreign) temp)
112 (storew name result fdefn-name-slot other-pointer-lowtag)
113 (storew null-tn result fdefn-fun-slot other-pointer-lowtag)
114 (storew temp result fdefn-raw-addr-slot other-pointer-lowtag))))
116 (define-vop (make-closure)
117 (:args (function :to :save :scs (descriptor-reg)))
118 (:info length stack-allocate-p)
119 (:ignore stack-allocate-p)
120 (:temporary (:scs (non-descriptor-reg)) temp)
121 (:results (result :scs (descriptor-reg)))
123 (let ((size (+ length closure-info-offset)))
124 (pseudo-atomic (:extra (pad-data-block size))
125 (inst move alloc-tn result)
126 (inst dep fun-pointer-lowtag 31 3 result)
127 (inst li (logior (ash (1- size) n-widetag-bits) closure-header-widetag) temp)
128 (storew temp result 0 fun-pointer-lowtag)
129 (storew function result closure-fun-slot fun-pointer-lowtag)))))
131 ;;; The compiler likes to be able to directly make value cells.
132 (define-vop (make-value-cell)
133 (:args (value :to :save :scs (descriptor-reg any-reg)))
134 (:temporary (:scs (non-descriptor-reg)) temp)
135 (:results (result :scs (descriptor-reg)))
136 (:info stack-allocate-p)
137 (:ignore stack-allocate-p)
139 (with-fixed-allocation
140 (result temp value-cell-header-widetag value-cell-size))
141 (storew value result value-cell-value-slot other-pointer-lowtag)))
145 ;;;; Automatic allocators for primitive objects.
147 (define-vop (make-unbound-marker)
149 (:results (result :scs (any-reg)))
151 (inst li unbound-marker-widetag result)))
153 (define-vop (make-funcallable-instance-tramp)
155 (:results (result :scs (any-reg)))
157 (inst li (make-fixup "funcallable_instance_tramp" :foreign) result)))
159 (define-vop (fixed-alloc)
161 (:info name words type lowtag stack-allocate-p)
162 (:ignore name stack-allocate-p)
163 (:results (result :scs (descriptor-reg)))
164 (:temporary (:scs (non-descriptor-reg)) temp)
166 (pseudo-atomic (:extra (pad-data-block words))
167 (inst move alloc-tn result)
168 (inst dep lowtag 31 3 result)
170 (inst li (logior (ash (1- words) n-widetag-bits) type) temp)
171 (storew temp result 0 lowtag)))))
173 (define-vop (var-alloc)
174 (:args (extra :scs (any-reg)))
175 (:arg-types positive-fixnum)
176 (:info name words type lowtag)
178 (:results (result :scs (descriptor-reg)))
179 (:temporary (:scs (any-reg)) bytes)
180 (:temporary (:scs (non-descriptor-reg)) header)
182 (inst addi (* (1+ words) n-word-bytes) extra bytes)
183 (inst sll bytes (- n-widetag-bits 2) header)
184 (inst addi (+ (ash -2 n-widetag-bits) type) header header)
185 (inst dep 0 31 3 bytes)
187 (inst move alloc-tn result)
188 (inst dep lowtag 31 3 result)
189 (storew header result 0 lowtag)
190 (inst add alloc-tn bytes alloc-tn))))