-;;; Written by Rob MacLachlan
-;;;
+;;;; the PPC definitions of VOPs used for non-local exit (throw,
+;;;; lexical exit, etc.)
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+
(in-package "SB!VM")
;;; Make an environment-live stack TN for saving the SP for NLX entry.
-(!def-vm-support-routine make-nlx-sp-tn (env)
+(defun make-nlx-sp-tn (env)
(physenv-live-tn
(make-representation-tn *fixnum-primitive-type* immediate-arg-scn)
env))
;;; Make a TN for the argument count passing location for a
;;; non-local entry.
-(!def-vm-support-routine make-nlx-entry-arg-start-location ()
+(defun make-nlx-entry-arg-start-location ()
(make-wired-tn *fixnum-primitive-type* immediate-arg-scn ocfp-offset))
\f
;;; additional stacks, then this would be the place to restore the top
;;; pointers.
-
-;;; Return a list of TNs that can be used to snapshot the dynamic state for
-;;; use with the Save/Restore-DYNAMIC-ENVIRONMENT VOPs.
-(!def-vm-support-routine make-dynamic-state-tns ()
- (make-n-tns 4 *backend-t-primitive-type*))
-
(define-vop (save-dynamic-state)
(:results (catch :scs (descriptor-reg))
- (nfp :scs (descriptor-reg))
- (nsp :scs (descriptor-reg)))
+ (nfp :scs (descriptor-reg))
+ (nsp :scs (descriptor-reg)))
(:vop-var vop)
(:generator 13
- (load-symbol-value catch *current-catch-block*)
+ (load-tl-symbol-value catch *current-catch-block*)
(let ((cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (move nfp cur-nfp)))
+ (move nfp cur-nfp)))
(move nsp nsp-tn)))
(define-vop (restore-dynamic-state)
(:args (catch :scs (descriptor-reg))
- (nfp :scs (descriptor-reg))
- (nsp :scs (descriptor-reg)))
+ (nfp :scs (descriptor-reg))
+ (nsp :scs (descriptor-reg)))
+ #!+sb-thread (:temporary (:scs (any-reg)) temp)
(:vop-var vop)
(:generator 10
- (store-symbol-value catch *current-catch-block*)
+ (store-tl-symbol-value catch *current-catch-block* temp)
(let ((cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (move cur-nfp nfp)))
+ (move cur-nfp nfp)))
(move nsp-tn nsp)))
(define-vop (current-stack-pointer)
(:temporary (:scs (descriptor-reg)) temp)
(:temporary (:scs (non-descriptor-reg)) ndescr)
(:generator 22
- (inst addi block cfp-tn (* (tn-offset tn) sb!vm:n-word-bytes))
- (load-symbol-value temp *current-unwind-protect-block*)
- (storew temp block sb!vm:unwind-block-current-uwp-slot)
- (storew cfp-tn block sb!vm:unwind-block-current-cont-slot)
- (storew code-tn block sb!vm:unwind-block-current-code-slot)
+ (inst addi block cfp-tn (* (tn-offset tn) n-word-bytes))
+ (load-tl-symbol-value temp *current-unwind-protect-block*)
+ (storew temp block unwind-block-current-uwp-slot)
+ (storew cfp-tn block unwind-block-current-cont-slot)
+ (storew code-tn block unwind-block-current-code-slot)
(inst compute-lra-from-code temp code-tn entry-label ndescr)
- (storew temp block sb!vm:catch-block-entry-pc-slot)))
+ (storew temp block catch-block-entry-pc-slot)))
;;; Like Make-Unwind-Block, except that we also store in the specified tag, and
;;;
(define-vop (make-catch-block)
(:args (tn)
- (tag :scs (any-reg descriptor-reg)))
+ (tag :scs (any-reg descriptor-reg)))
(:info entry-label)
(:results (block :scs (any-reg)))
(:temporary (:scs (descriptor-reg)) temp)
(:temporary (:scs (descriptor-reg) :target block :to (:result 0)) result)
(:temporary (:scs (non-descriptor-reg)) ndescr)
(:generator 44
- (inst addi result cfp-tn (* (tn-offset tn) sb!vm:n-word-bytes))
- (load-symbol-value temp *current-unwind-protect-block*)
- (storew temp result sb!vm:catch-block-current-uwp-slot)
- (storew cfp-tn result sb!vm:catch-block-current-cont-slot)
- (storew code-tn result sb!vm:catch-block-current-code-slot)
+ (inst addi result cfp-tn (* (tn-offset tn) n-word-bytes))
+ (load-tl-symbol-value temp *current-unwind-protect-block*)
+ (storew temp result catch-block-current-uwp-slot)
+ (storew cfp-tn result catch-block-current-cont-slot)
+ (storew code-tn result catch-block-current-code-slot)
(inst compute-lra-from-code temp code-tn entry-label ndescr)
- (storew temp result sb!vm:catch-block-entry-pc-slot)
+ (storew temp result catch-block-entry-pc-slot)
- (storew tag result sb!vm:catch-block-tag-slot)
- (load-symbol-value temp *current-catch-block*)
- (storew temp result sb!vm:catch-block-previous-catch-slot)
- (store-symbol-value result *current-catch-block*)
+ (storew tag result catch-block-tag-slot)
+ (load-tl-symbol-value temp *current-catch-block*)
+ (storew temp result catch-block-previous-catch-slot)
+ (store-tl-symbol-value result *current-catch-block* temp)
(move block result)))
(define-vop (set-unwind-protect)
(:args (tn))
(:temporary (:scs (descriptor-reg)) new-uwp)
+ #!+sb-thread (:temporary (:scs (any-reg)) temp)
(:generator 7
- (inst addi new-uwp cfp-tn (* (tn-offset tn) sb!vm:n-word-bytes))
- (store-symbol-value new-uwp *current-unwind-protect-block*)))
+ (inst addi new-uwp cfp-tn (* (tn-offset tn) n-word-bytes))
+ (store-tl-symbol-value new-uwp *current-unwind-protect-block* temp)))
(define-vop (unlink-catch-block)
(:temporary (:scs (any-reg)) block)
+ #!+sb-thread (:temporary (:scs (any-reg)) temp)
(:policy :fast-safe)
(:translate %catch-breakup)
(:generator 17
- (load-symbol-value block *current-catch-block*)
- (loadw block block sb!vm:catch-block-previous-catch-slot)
- (store-symbol-value block *current-catch-block*)))
+ (load-tl-symbol-value block *current-catch-block*)
+ (loadw block block catch-block-previous-catch-slot)
+ (store-tl-symbol-value block *current-catch-block* temp)))
(define-vop (unlink-unwind-protect)
(:temporary (:scs (any-reg)) block)
+ #!+sb-thread (:temporary (:scs (any-reg)) temp)
(:policy :fast-safe)
(:translate %unwind-protect-breakup)
(:generator 17
- (load-symbol-value block *current-unwind-protect-block*)
- (loadw block block sb!vm:unwind-block-current-uwp-slot)
- (store-symbol-value block *current-unwind-protect-block*)))
+ (load-tl-symbol-value block *current-unwind-protect-block*)
+ (loadw block block unwind-block-current-uwp-slot)
+ (store-tl-symbol-value block *current-unwind-protect-block* temp)))
\f
;;;; NLX entry VOPs:
(define-vop (nlx-entry)
(:args (sp) ; Note: we can't list an sc-restriction, 'cause any load vops
- ; would be inserted before the LRA.
- (start)
- (count))
+ ; would be inserted before the LRA.
+ (start)
+ (count))
(:results (values :more t))
(:temporary (:scs (descriptor-reg)) move-temp)
(:info label nvals)
(emit-return-pc label)
(note-this-location vop :non-local-entry)
(cond ((zerop nvals))
- ((= nvals 1)
- (let ((no-values (gen-label)))
- (inst cmpwi count 0)
- (move (tn-ref-tn values) null-tn)
- (inst beq no-values)
- (loadw (tn-ref-tn values) start)
- (emit-label no-values)))
- (t
- (collect ((defaults))
- (inst addic. count count (- (fixnumize 1)))
- (do ((i 0 (1+ i))
- (tn-ref values (tn-ref-across tn-ref)))
- ((null tn-ref))
- (let ((default-lab (gen-label))
- (tn (tn-ref-tn tn-ref)))
- (defaults (cons default-lab tn))
-
- (inst subi count count (fixnumize 1))
- (inst blt default-lab)
- (sc-case tn
- ((descriptor-reg any-reg)
- (loadw tn start i))
- (control-stack
- (loadw move-temp start i)
- (store-stack-tn tn move-temp)))
+ ((= nvals 1)
+ (let ((no-values (gen-label)))
+ (inst cmpwi count 0)
+ (move (tn-ref-tn values) null-tn)
+ (inst beq no-values)
+ (loadw (tn-ref-tn values) start)
+ (emit-label no-values)))
+ (t
+ (collect ((defaults))
+ (inst addic. count count (- (fixnumize 1)))
+ (do ((i 0 (1+ i))
+ (tn-ref values (tn-ref-across tn-ref)))
+ ((null tn-ref))
+ (let ((default-lab (gen-label))
+ (tn (tn-ref-tn tn-ref)))
+ (defaults (cons default-lab tn))
+
+ (inst subi count count (fixnumize 1))
+ (inst blt default-lab)
+ (sc-case tn
+ ((descriptor-reg any-reg)
+ (loadw tn start i))
+ (control-stack
+ (loadw move-temp start i)
+ (store-stack-tn tn move-temp)))
(inst cmpwi count 0)))
-
- (let ((defaulting-done (gen-label)))
-
- (emit-label defaulting-done)
-
- (assemble (*elsewhere*)
- (dolist (def (defaults))
- (emit-label (car def))
- (let ((tn (cdr def)))
- (sc-case tn
- ((descriptor-reg any-reg)
- (move tn null-tn))
- (control-stack
- (store-stack-tn tn null-tn)))))
- (inst b defaulting-done))))))
+
+ (let ((defaulting-done (gen-label)))
+
+ (emit-label defaulting-done)
+
+ (assemble (*elsewhere*)
+ (dolist (def (defaults))
+ (emit-label (car def))
+ (let ((tn (cdr def)))
+ (sc-case tn
+ ((descriptor-reg any-reg)
+ (move tn null-tn))
+ (control-stack
+ (store-stack-tn tn null-tn)))))
+ (inst b defaulting-done))))))
(load-stack-tn csp-tn sp)))
(:temporary (:scs (any-reg)) dst)
(:temporary (:scs (descriptor-reg)) temp)
(:results (result :scs (any-reg) :from (:argument 0))
- (num :scs (any-reg) :from (:argument 0)))
+ (num :scs (any-reg) :from (:argument 0)))
(:save-p :force-to-stack)
(:vop-var vop)
(:generator 30
(emit-return-pc label)
(note-this-location vop :non-local-entry)
(let ((loop (gen-label))
- (done (gen-label)))
+ (done (gen-label)))
;; Setup results, and test for the zero value case.
(load-stack-tn result top)
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