-(in-package "SB!VM")
+;;;; the VM definition of function call for MIPS
+
+;;;; 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")
\f
;;;; Interfaces to IR2 conversion:
(declare (type unsigned-byte n))
(if (< n register-arg-count)
(make-wired-tn *backend-t-primitive-type*
- register-arg-scn
- (elt *register-arg-offsets* n))
+ register-arg-scn
+ (elt *register-arg-offsets* n))
(make-wired-tn *backend-t-primitive-type*
- control-stack-arg-scn n)))
+ control-stack-arg-scn n)))
;;; Make a passing location TN for a local call return PC. If standard is
(make-restricted-tn *backend-t-primitive-type* register-arg-scn)))
;;; This is similar to MAKE-RETURN-PC-PASSING-LOCATION, but makes a
-;;; location to pass Old-FP in. This is (obviously) wired in the
+;;; location to pass OLD-FP in. This is (obviously) wired in the
;;; standard convention, but is totally unrestricted in non-standard
;;; conventions, since we can always fetch it off of the stack using
;;; the arg pointer.
(specify-save-tn
(physenv-debug-live-tn (make-normal-tn *fixnum-primitive-type*) env)
(make-wired-tn *fixnum-primitive-type*
- control-stack-arg-scn
- ocfp-save-offset)))
+ control-stack-arg-scn
+ ocfp-save-offset)))
+
(!def-vm-support-routine make-return-pc-save-location (env)
(let ((ptype *backend-t-primitive-type*))
(specify-save-tn
;;; continuation within a function.
(!def-vm-support-routine make-unknown-values-locations ()
(list (make-stack-pointer-tn)
- (make-normal-tn *fixnum-primitive-type*)))
+ (make-normal-tn *fixnum-primitive-type*)))
;;; This function is called by the ENTRY-ANALYZE phase, allowing
(declare (type component component))
(dotimes (i code-constants-offset)
(vector-push-extend nil
- (ir2-component-constants (component-info component))))
+ (ir2-component-constants (component-info component))))
(values))
\f
;;; Return the number of bytes needed for the current non-descriptor stack
;;; frame. Non-descriptor stack frames must be multiples of 8 bytes on
;;; the PMAX.
-;;;
+;;;
(defun bytes-needed-for-non-descriptor-stack-frame ()
(* (logandc2 (1+ (sb-allocated-size 'non-descriptor-stack)) 1)
n-word-bytes))
(:generator 1
(let ((nfp (current-nfp-tn vop)))
(when nfp
- (inst addu val nfp (bytes-needed-for-non-descriptor-stack-frame))))))
+ (inst addu val nfp (bytes-needed-for-non-descriptor-stack-frame))))))
(define-vop (xep-allocate-frame)
(trace-table-entry trace-table-fun-prologue)
(emit-label start-lab)
;; Allocate function header.
- (inst fun-header-word)
+ (inst simple-fun-header-word)
(dotimes (i (1- simple-fun-code-offset))
(inst word 0))
;; The start of the actual code.
;; Compute CODE from the address of this entry point.
(let ((entry-point (gen-label)))
(emit-label entry-point)
- (inst compute-code-from-fn code-tn lip-tn entry-point temp)
+ (inst compute-code-from-lip code-tn lip-tn entry-point temp)
;; ### We should also save it on the stack so that the garbage collector
;; won't forget about us if we call anyone else.
)
;; Build our stack frames.
(inst addu csp-tn cfp-tn
- (* n-word-bytes (sb-allocated-size 'control-stack)))
+ (* n-word-bytes (sb-allocated-size 'control-stack)))
(let ((nfp (current-nfp-tn vop)))
(when nfp
- (inst addu nsp-tn nsp-tn
- (- (bytes-needed-for-non-descriptor-stack-frame)))
- (move nfp nsp-tn)))
+ (inst addu nsp-tn nsp-tn
+ (- (bytes-needed-for-non-descriptor-stack-frame)))
+ (move nfp nsp-tn)))
(trace-table-entry trace-table-normal)))
(define-vop (allocate-frame)
(:results (res :scs (any-reg))
- (nfp :scs (any-reg)))
+ (nfp :scs (any-reg)))
(:info callee)
(:generator 2
(trace-table-entry trace-table-fun-prologue)
(move res csp-tn)
(inst addu csp-tn csp-tn
- (* n-word-bytes (sb-allocated-size 'control-stack)))
+ (* n-word-bytes (sb-allocated-size 'control-stack)))
(when (ir2-physenv-number-stack-p callee)
(inst addu nsp-tn nsp-tn
- (- (bytes-needed-for-non-descriptor-stack-frame)))
+ (- (bytes-needed-for-non-descriptor-stack-frame)))
(move nfp nsp-tn))
(trace-table-entry trace-table-normal)))
;;; In the general case, we have to do three things:
;;; -- Default unsupplied register values. This need only be done when a
;;; single value is returned, since register values are defaulted by the
-;;; called in the non-single case.
+;;; callee in the non-single case.
;;; -- Default unsupplied stack values. This needs to be done whenever there
;;; are stack values.
;;; -- Reset SP. This must be done whenever other than 1 value is returned,
;;;
;;; The general-case code looks like this:
#|
- b regs-defaulted ; Skip if MVs
- nop
+ b regs-defaulted ; Skip if MVs
+ nop
- move a1 null-tn ; Default register values
- ...
- loadi nargs 1 ; Force defaulting of stack values
- move ocfp csp ; Set up args for SP resetting
+ move a1 null-tn ; Default register values
+ ...
+ loadi nargs 1 ; Force defaulting of stack values
+ move ocfp csp ; Set up args for SP resetting
regs-defaulted
- subu temp nargs register-arg-count
+ subu temp nargs register-arg-count
- bltz temp default-value-7 ; jump to default code
+ bltz temp default-value-7 ; jump to default code
addu temp temp -1
- loadw move-temp ocfp-tn 6 ; Move value to correct location.
- store-stack-tn val4-tn move-temp
+ loadw move-temp ocfp-tn 6 ; Move value to correct location.
+ store-stack-tn val4-tn move-temp
- bltz temp default-value-8
+ bltz temp default-value-8
addu temp temp -1
- loadw move-temp ocfp-tn 7
- store-stack-tn val5-tn move-temp
+ loadw move-temp ocfp-tn 7
+ store-stack-tn val5-tn move-temp
- ...
+ ...
defaulting-done
- move sp ocfp ; Reset SP.
+ move csp ocfp ; Reset SP.
<end of code>
<elsewhere>
default-value-7
- store-stack-tn val4-tn null-tn ; Nil out 7'th value. (first on stack)
+ store-stack-tn val4-tn null-tn ; Nil out 7'th value. (first on stack)
default-value-8
- store-stack-tn val5-tn null-tn ; Nil out 8'th value.
+ store-stack-tn val5-tn null-tn ; Nil out 8'th value.
- ...
+ ...
- br defaulting-done
+ br defaulting-done
nop
|#
;;;
(defun default-unknown-values (vop values nvals move-temp temp lra-label)
(declare (type (or tn-ref null) values)
- (type unsigned-byte nvals) (type tn move-temp temp))
+ (type unsigned-byte nvals) (type tn move-temp temp))
(if (<= nvals 1)
(progn
- ;; Note that this is a single-value return point. This is actually
- ;; the multiple-value entry point for a single desired value, but
- ;; the code location has to be here, or the debugger backtrace
- ;; gets confused.
- (without-scheduling ()
- (note-this-location vop :single-value-return)
- (move csp-tn ocfp-tn)
- (inst nop))
- (when lra-label
- (inst compute-code-from-lra code-tn code-tn lra-label temp)))
+ ;; Note that this is a single-value return point. This is actually
+ ;; the multiple-value entry point for a single desired value, but
+ ;; the code location has to be here, or the debugger backtrace
+ ;; gets confused.
+ (without-scheduling ()
+ (note-this-location vop :single-value-return)
+ (move csp-tn ocfp-tn t)
+ (inst nop))
+ (when lra-label
+ (inst compute-code-from-lra code-tn code-tn lra-label temp)))
(let ((regs-defaulted (gen-label))
- (defaulting-done (gen-label))
- (default-stack-vals (gen-label)))
- (without-scheduling ()
- ;; Note that this is an unknown-values return point.
- (note-this-location vop :unknown-return)
- ;; Branch off to the MV case.
- (inst b regs-defaulted)
- ;; If there are no stack results, clear the stack now.
- (if (> nvals register-arg-count)
- (inst addu temp nargs-tn (fixnumize (- register-arg-count)))
- (move csp-tn ocfp-tn)))
-
- ;; Do the single value calse.
- (do ((i 1 (1+ i))
- (val (tn-ref-across values) (tn-ref-across val)))
- ((= i (min nvals register-arg-count)))
- (move (tn-ref-tn val) null-tn))
- (when (> nvals register-arg-count)
- (inst b default-stack-vals)
- (move ocfp-tn csp-tn))
-
- (emit-label regs-defaulted)
-
- (when (> nvals register-arg-count)
- ;; If there are stack results, we have to default them
- ;; and clear the stack.
- (collect ((defaults))
- (do ((i register-arg-count (1+ i))
- (val (do ((i 0 (1+ i))
- (val values (tn-ref-across val)))
- ((= i register-arg-count) val))
- (tn-ref-across val)))
- ((null val))
-
- (let ((default-lab (gen-label))
- (tn (tn-ref-tn val)))
- (defaults (cons default-lab tn))
-
- (inst blez temp default-lab)
- (inst lw move-temp ocfp-tn (* i n-word-bytes))
- (inst addu temp temp (fixnumize -1))
- (store-stack-tn tn move-temp)))
-
- (emit-label defaulting-done)
- (move csp-tn ocfp-tn)
-
- (let ((defaults (defaults)))
- (assert defaults)
- (assemble (*elsewhere*)
- (emit-label default-stack-vals)
- (do ((remaining defaults (cdr remaining)))
- ((null remaining))
- (let ((def (car remaining)))
- (emit-label (car def))
- (when (null (cdr remaining))
- (inst b defaulting-done))
- (store-stack-tn (cdr def) null-tn)))))))
-
- (when lra-label
- (inst compute-code-from-lra code-tn code-tn lra-label temp))))
+ (defaulting-done (gen-label))
+ (default-stack-vals (gen-label)))
+ (without-scheduling ()
+ ;; Note that this is an unknown-values return point.
+ (note-this-location vop :unknown-return)
+ ;; Branch off to the MV case.
+ (inst b regs-defaulted)
+ ;; If there are no stack results, clear the stack now.
+ (if (> nvals register-arg-count)
+ (inst addu temp nargs-tn (fixnumize (- register-arg-count)))
+ (move csp-tn ocfp-tn t)))
+
+ ;; Do the single value case.
+ (do ((i 1 (1+ i))
+ (val (tn-ref-across values) (tn-ref-across val)))
+ ((= i (min nvals register-arg-count)))
+ (move (tn-ref-tn val) null-tn))
+ (when (> nvals register-arg-count)
+ (inst b default-stack-vals)
+ (move ocfp-tn csp-tn t))
+
+ (emit-label regs-defaulted)
+
+ (when (> nvals register-arg-count)
+ ;; If there are stack results, we have to default them
+ ;; and clear the stack.
+ (collect ((defaults))
+ (do ((i register-arg-count (1+ i))
+ (val (do ((i 0 (1+ i))
+ (val values (tn-ref-across val)))
+ ((= i register-arg-count) val))
+ (tn-ref-across val)))
+ ((null val))
+
+ (let ((default-lab (gen-label))
+ (tn (tn-ref-tn val)))
+ (defaults (cons default-lab tn))
+
+ (inst blez temp default-lab)
+ (inst lw move-temp ocfp-tn (* i n-word-bytes))
+ (inst addu temp temp (fixnumize -1))
+ (store-stack-tn tn move-temp)))
+
+ (emit-label defaulting-done)
+ (move csp-tn ocfp-tn)
+
+ (let ((defaults (defaults)))
+ (aver defaults)
+ (assemble (*elsewhere*)
+ (emit-label default-stack-vals)
+ (trace-table-entry trace-table-fun-prologue)
+ (do ((remaining defaults (cdr remaining)))
+ ((null remaining))
+ (let ((def (car remaining)))
+ (emit-label (car def))
+ (when (null (cdr remaining))
+ (inst b defaulting-done))
+ (store-stack-tn (cdr def) null-tn)))
+ (trace-table-entry trace-table-normal)))))
+
+ (when lra-label
+ (inst compute-code-from-lra code-tn code-tn lra-label temp))))
(values))
\f
(defun receive-unknown-values (args nargs start count lra-label temp)
(declare (type tn args nargs start count temp))
(let ((variable-values (gen-label))
- (done (gen-label)))
+ (done (gen-label)))
(without-scheduling ()
(inst b variable-values)
(inst nop))
(when lra-label
(inst compute-code-from-lra code-tn code-tn lra-label temp))
(inst addu csp-tn csp-tn 4)
- (storew (first register-arg-tns) csp-tn -1)
+ (storew (first *register-arg-tns*) csp-tn -1)
(inst addu start csp-tn -4)
(inst li count (fixnumize 1))
-
+
(emit-label done)
-
+
(assemble (*elsewhere*)
+ (trace-table-entry trace-table-fun-prologue)
(emit-label variable-values)
(when lra-label
- (inst compute-code-from-lra code-tn code-tn lra-label temp))
- (do ((arg register-arg-tns (rest arg))
- (i 0 (1+ i)))
- ((null arg))
- (storew (first arg) args i))
+ (inst compute-code-from-lra code-tn code-tn lra-label temp))
+ (do ((arg *register-arg-tns* (rest arg))
+ (i 0 (1+ i)))
+ ((null arg))
+ (storew (first arg) args i))
(move start args)
- (move count nargs)
(inst b done)
- (inst nop)))
+ (move count nargs t)
+ (trace-table-entry trace-table-normal)))
(values))
(start :scs (any-reg))
(count :scs (any-reg)))
(:temporary (:sc descriptor-reg :offset ocfp-offset
- :from :eval :to (:result 0))
- values-start)
+ :from :eval :to (:result 0))
+ values-start)
(:temporary (:sc any-reg :offset nargs-offset
- :from :eval :to (:result 1))
- nvals)
+ :from :eval :to (:result 1))
+ nvals)
(:temporary (:scs (non-descriptor-reg)) temp))
;;;
(define-vop (call-local)
(:args (fp)
- (nfp)
- (args :more t))
+ (nfp)
+ (args :more t))
(:results (values :more t))
(:save-p t)
(:move-args :local-call)
(:ignore arg-locs args ocfp)
(:generator 5
(let ((label (gen-label))
- (cur-nfp (current-nfp-tn vop)))
+ (cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (store-stack-tn nfp-save cur-nfp))
+ (store-stack-tn nfp-save cur-nfp))
(let ((callee-nfp (callee-nfp-tn callee)))
- (when callee-nfp
- (maybe-load-stack-tn callee-nfp nfp)))
+ (when callee-nfp
+ (maybe-load-stack-tn callee-nfp nfp)))
(maybe-load-stack-tn cfp-tn fp)
(trace-table-entry trace-table-call-site)
(inst compute-lra-from-code
- (callee-return-pc-tn callee) code-tn label temp)
+ (callee-return-pc-tn callee) code-tn label temp)
(note-this-location vop :call-site)
(inst b target)
(inst nop)
(emit-return-pc label)
(default-unknown-values vop values nvals move-temp temp label)
(when cur-nfp
- (load-stack-tn cur-nfp nfp-save)))))
+ (load-stack-tn cur-nfp nfp-save)))))
;;; Non-TR local call for a variable number of return values passed according
;;;
(define-vop (multiple-call-local unknown-values-receiver)
(:args (fp)
- (nfp)
- (args :more t))
+ (nfp)
+ (args :more t))
(:save-p t)
(:move-args :local-call)
(:info save callee target)
(:ignore args save)
(:vop-var vop)
(:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+ (:temporary (:scs (non-descriptor-reg)) temp)
(:generator 20
(let ((label (gen-label))
- (cur-nfp (current-nfp-tn vop)))
+ (cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (store-stack-tn nfp-save cur-nfp))
+ (store-stack-tn nfp-save cur-nfp))
(let ((callee-nfp (callee-nfp-tn callee)))
- (when callee-nfp
- (maybe-load-stack-tn callee-nfp nfp)))
+ (when callee-nfp
+ (maybe-load-stack-tn callee-nfp nfp)))
(maybe-load-stack-tn cfp-tn fp)
(trace-table-entry trace-table-call-site)
(inst compute-lra-from-code
- (callee-return-pc-tn callee) code-tn label temp)
+ (callee-return-pc-tn callee) code-tn label temp)
(note-this-location vop :call-site)
(inst b target)
(inst nop)
(note-this-location vop :unknown-return)
(receive-unknown-values values-start nvals start count label temp)
(when cur-nfp
- (load-stack-tn cur-nfp nfp-save)))))
+ (load-stack-tn cur-nfp nfp-save)))))
\f
;;;; Local call with known values return:
;;;
(define-vop (known-call-local)
(:args (fp)
- (nfp)
- (args :more t))
+ (nfp)
+ (args :more t))
(:results (res :more t))
(:move-args :local-call)
(:save-p t)
(:temporary (:scs (non-descriptor-reg)) temp)
(:generator 5
(let ((label (gen-label))
- (cur-nfp (current-nfp-tn vop)))
+ (cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (store-stack-tn nfp-save cur-nfp))
+ (store-stack-tn nfp-save cur-nfp))
(let ((callee-nfp (callee-nfp-tn callee)))
- (when callee-nfp
- (maybe-load-stack-tn callee-nfp nfp)))
+ (when callee-nfp
+ (maybe-load-stack-tn callee-nfp nfp)))
(maybe-load-stack-tn cfp-tn fp)
(trace-table-entry trace-table-call-site)
(inst compute-lra-from-code
- (callee-return-pc-tn callee) code-tn label temp)
+ (callee-return-pc-tn callee) code-tn label temp)
(note-this-location vop :call-site)
(inst b target)
(inst nop)
(emit-return-pc label)
(note-this-location vop :known-return)
(when cur-nfp
- (load-stack-tn cur-nfp nfp-save)))))
+ (load-stack-tn cur-nfp nfp-save)))))
;;; Return from known values call. We receive the return locations as
;;; arguments to terminate their lifetimes in the returning function. We
;;;
(define-vop (known-return)
(:args (ocfp :target ocfp-temp)
- (return-pc :target return-pc-temp)
- (vals :more t))
+ (return-pc :target return-pc-temp)
+ (vals :more t))
(:temporary (:sc any-reg :from (:argument 0)) ocfp-temp)
(:temporary (:sc descriptor-reg :from (:argument 1))
- return-pc-temp)
+ return-pc-temp)
(:temporary (:scs (interior-reg)) lip)
(:move-args :known-return)
(:info val-locs)
(move csp-tn cfp-tn)
(let ((cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))))
(inst addu lip return-pc-temp (- n-word-bytes other-pointer-lowtag))
(inst j lip)
- (move cfp-tn ocfp-temp)
+ (move cfp-tn ocfp-temp t)
(trace-table-entry trace-table-normal)))
\f
;;; replication in defining the cross-product VOPs.
;;;
;;; Name is the name of the VOP to define.
-;;;
+;;;
;;; Named is true if the first argument is a symbol whose global function
;;; definition is to be called.
;;;
;;; the current frame.
;;;
(defmacro define-full-call (name named return variable)
- (assert (not (and variable (eq return :tail))))
+ (aver (not (and variable (eq return :tail))))
`(define-vop (,name
- ,@(when (eq return :unknown)
- '(unknown-values-receiver)))
+ ,@(when (eq return :unknown)
+ '(unknown-values-receiver)))
(:args
,@(unless (eq return :tail)
- '((new-fp :scs (any-reg) :to :eval)))
+ '((new-fp :scs (any-reg) :to :eval)))
,(if named
- '(name :target name-pass)
- '(arg-fun :target lexenv))
-
+ '(name :target name-pass)
+ '(arg-fun :target lexenv))
+
,@(when (eq return :tail)
- '((ocfp :target ocfp-pass)
- (return-pc :target return-pc-pass)))
-
+ '((ocfp :target ocfp-pass)
+ (return-pc :target return-pc-pass)))
+
,@(unless variable '((args :more t :scs (descriptor-reg)))))
,@(when (eq return :fixed)
- '((:results (values :more t))))
-
+ '((:results (values :more t))))
+
(:save-p ,(if (eq return :tail) :compute-only t))
,@(unless (or (eq return :tail) variable)
- '((:move-args :full-call)))
+ '((:move-args :full-call)))
(:vop-var vop)
(:info ,@(unless (or variable (eq return :tail)) '(arg-locs))
- ,@(unless variable '(nargs))
- ,@(when (eq return :fixed) '(nvals)))
+ ,@(unless variable '(nargs))
+ ,@(when (eq return :fixed) '(nvals))
+ step-instrumenting)
(:ignore ,@(unless (or variable (eq return :tail)) '(arg-locs))
- ,@(unless variable '(args)))
+ ,@(unless variable '(args))
+ ;; Step instrumentation for full calls not implemented yet.
+ ;; See the PPC backend for an example.
+ step-instrumenting)
(:temporary (:sc descriptor-reg
- :offset ocfp-offset
- :from (:argument 1)
- ,@(unless (eq return :fixed)
- '(:to :eval)))
- ocfp-pass)
+ :offset ocfp-offset
+ :from (:argument 1)
+ ,@(unless (eq return :fixed)
+ '(:to :eval)))
+ ocfp-pass)
(:temporary (:sc descriptor-reg
- :offset lra-offset
- :from (:argument ,(if (eq return :tail) 2 1))
- :to :eval)
- return-pc-pass)
+ :offset lra-offset
+ :from (:argument ,(if (eq return :tail) 2 1))
+ :to :eval)
+ return-pc-pass)
,@(if named
- `((:temporary (:sc descriptor-reg :offset fdefn-offset
- :from (:argument ,(if (eq return :tail) 0 1))
- :to :eval)
- name-pass))
-
- `((:temporary (:sc descriptor-reg :offset lexenv-offset
- :from (:argument ,(if (eq return :tail) 0 1))
- :to :eval)
- lexenv)
- (:temporary (:scs (descriptor-reg) :from (:argument 0) :to :eval)
- function)))
+ `((:temporary (:sc descriptor-reg :offset fdefn-offset
+ :from (:argument ,(if (eq return :tail) 0 1))
+ :to :eval)
+ name-pass))
+
+ `((:temporary (:sc descriptor-reg :offset lexenv-offset
+ :from (:argument ,(if (eq return :tail) 0 1))
+ :to :eval)
+ lexenv)
+ (:temporary (:scs (descriptor-reg) :from (:argument 0) :to :eval)
+ function)))
(:temporary (:sc any-reg :offset nargs-offset :to :eval)
- nargs-pass)
+ nargs-pass)
,@(when variable
- (mapcar #'(lambda (name offset)
- `(:temporary (:sc descriptor-reg
- :offset ,offset
- :to :eval)
- ,name))
- register-arg-names *register-arg-offsets*))
+ (mapcar #'(lambda (name offset)
+ `(:temporary (:sc descriptor-reg
+ :offset ,offset
+ :to :eval)
+ ,name))
+ register-arg-names *register-arg-offsets*))
,@(when (eq return :fixed)
- '((:temporary (:scs (descriptor-reg) :from :eval) move-temp)))
+ '((:temporary (:scs (descriptor-reg) :from :eval) move-temp)))
,@(unless (eq return :tail)
- '((:temporary (:scs (non-descriptor-reg)) temp)
- (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)))
+ '((:temporary (:scs (non-descriptor-reg)) temp)
+ (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)))
(:temporary (:sc interior-reg :offset lip-offset) entry-point)
(:generator ,(+ (if named 5 0)
- (if variable 19 1)
- (if (eq return :tail) 0 10)
- 15
- (if (eq return :unknown) 25 0))
+ (if variable 19 1)
+ (if (eq return :tail) 0 10)
+ 15
+ (if (eq return :unknown) 25 0))
(let* ((cur-nfp (current-nfp-tn vop))
- ,@(unless (eq return :tail)
- '((lra-label (gen-label))))
- (filler
- (remove nil
- (list :load-nargs
- ,@(if (eq return :tail)
- '((unless (location= ocfp ocfp-pass)
- :load-ocfp)
- (unless (location= return-pc
- return-pc-pass)
- :load-return-pc)
- (when cur-nfp
- :frob-nfp))
- '(:comp-lra
- (when cur-nfp
- :frob-nfp)
- :save-fp
- :load-fp))))))
- (flet ((do-next-filler ()
- (let* ((next (pop filler))
- (what (if (consp next) (car next) next)))
- (ecase what
- (:load-nargs
- ,@(if variable
- `((inst subu nargs-pass csp-tn new-fp)
- ,@(let ((index -1))
- (mapcar #'(lambda (name)
- `(inst lw ,name new-fp
- ,(ash (incf index)
- word-shift)))
- register-arg-names)))
- '((inst li nargs-pass (fixnumize nargs)))))
- ,@(if (eq return :tail)
- '((:load-ocfp
- (sc-case ocfp
- (any-reg
- (inst move ocfp-pass ocfp))
- (control-stack
- (inst lw ocfp-pass cfp-tn
- (ash (tn-offset ocfp)
- word-shift)))))
- (:load-return-pc
- (sc-case return-pc
- (descriptor-reg
- (inst move return-pc-pass return-pc))
- (control-stack
- (inst lw return-pc-pass cfp-tn
- (ash (tn-offset return-pc)
- word-shift)))))
- (:frob-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
- `((:comp-lra
- (inst compute-lra-from-code
- return-pc-pass code-tn lra-label temp))
- (:frob-nfp
- (store-stack-tn nfp-save cur-nfp))
- (:save-fp
- (inst move ocfp-pass cfp-tn))
- (:load-fp
- ,(if variable
- '(move cfp-tn new-fp)
- '(if (> nargs register-arg-count)
- (move cfp-tn new-fp)
- (move cfp-tn csp-tn)))
- (trace-table-entry trace-table-call-site))))
- ((nil)
- (inst nop))))))
-
- ,@(if named
- `((sc-case name
- (descriptor-reg (move name-pass name))
- (control-stack
- (inst lw name-pass cfp-tn
- (ash (tn-offset name) word-shift))
- (do-next-filler))
- (constant
- (inst lw name-pass code-tn
- (- (ash (tn-offset name) word-shift)
- other-pointer-lowtag))
- (do-next-filler)))
- (inst lw entry-point name-pass
- (- (ash fdefn-raw-addr-slot word-shift)
- other-pointer-lowtag))
- (do-next-filler))
- `((sc-case arg-fun
- (descriptor-reg (move lexenv arg-fun))
- (control-stack
- (inst lw lexenv cfp-tn
- (ash (tn-offset arg-fun) word-shift))
- (do-next-filler))
- (constant
- (inst lw lexenv code-tn
- (- (ash (tn-offset arg-fun) word-shift)
- other-pointer-lowtag))
- (do-next-filler)))
- (inst lw function lexenv
- (- (ash closure-fun-slot word-shift)
- fun-pointer-lowtag))
- (do-next-filler)
- (inst addu entry-point function
- (- (ash simple-fun-code-offset word-shift)
- fun-pointer-lowtag))))
- (loop
- (if (cdr filler)
- (do-next-filler)
- (return)))
-
- (note-this-location vop :call-site)
- (inst j entry-point)
- (do-next-filler))
-
- ,@(ecase return
- (:fixed
- '((trace-table-entry trace-table-normal)
- (emit-return-pc lra-label)
- (default-unknown-values vop values nvals
- move-temp temp lra-label)
- (when cur-nfp
- (load-stack-tn cur-nfp nfp-save))))
- (:unknown
- '((trace-table-entry trace-table-normal)
- (emit-return-pc lra-label)
- (note-this-location vop :unknown-return)
- (receive-unknown-values values-start nvals start count
- lra-label temp)
- (when cur-nfp
- (load-stack-tn cur-nfp nfp-save))))
- (:tail))))))
+ ,@(unless (eq return :tail)
+ '((lra-label (gen-label))))
+ (filler
+ (remove nil
+ (list :load-nargs
+ ,@(if (eq return :tail)
+ '((unless (location= ocfp ocfp-pass)
+ :load-ocfp)
+ (unless (location= return-pc
+ return-pc-pass)
+ :load-return-pc)
+ (when cur-nfp
+ :frob-nfp))
+ '(:comp-lra
+ (when cur-nfp
+ :frob-nfp)
+ :save-fp
+ :load-fp))))))
+ (flet ((do-next-filler ()
+ (let* ((next (pop filler))
+ (what (if (consp next) (car next) next)))
+ (ecase what
+ (:load-nargs
+ ,@(if variable
+ `((inst subu nargs-pass csp-tn new-fp)
+ ,@(let ((index -1))
+ (mapcar #'(lambda (name)
+ `(inst lw ,name new-fp
+ ,(ash (incf index)
+ word-shift)))
+ register-arg-names)))
+ '((inst li nargs-pass (fixnumize nargs)))))
+ ,@(if (eq return :tail)
+ '((:load-ocfp
+ (sc-case ocfp
+ (any-reg
+ (move ocfp-pass ocfp t))
+ (control-stack
+ (inst lw ocfp-pass cfp-tn
+ (ash (tn-offset ocfp)
+ word-shift)))))
+ (:load-return-pc
+ (sc-case return-pc
+ (descriptor-reg
+ (move return-pc-pass return-pc t))
+ (control-stack
+ (inst lw return-pc-pass cfp-tn
+ (ash (tn-offset return-pc)
+ word-shift)))))
+ (:frob-nfp
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))))
+ `((:comp-lra
+ (inst compute-lra-from-code
+ return-pc-pass code-tn lra-label temp))
+ (:frob-nfp
+ (store-stack-tn nfp-save cur-nfp))
+ (:save-fp
+ (move ocfp-pass cfp-tn t))
+ (:load-fp
+ ,(if variable
+ '(move cfp-tn new-fp)
+ '(if (> nargs register-arg-count)
+ (move cfp-tn new-fp)
+ (move cfp-tn csp-tn)))
+ (trace-table-entry trace-table-call-site))))
+ ((nil)
+ (inst nop))))))
+
+ ,@(if named
+ `((sc-case name
+ (descriptor-reg (move name-pass name))
+ (control-stack
+ (inst lw name-pass cfp-tn
+ (ash (tn-offset name) word-shift))
+ (do-next-filler))
+ (constant
+ (inst lw name-pass code-tn
+ (- (ash (tn-offset name) word-shift)
+ other-pointer-lowtag))
+ (do-next-filler)))
+ (inst lw entry-point name-pass
+ (- (ash fdefn-raw-addr-slot word-shift)
+ other-pointer-lowtag))
+ (do-next-filler))
+ `((sc-case arg-fun
+ (descriptor-reg (move lexenv arg-fun))
+ (control-stack
+ (inst lw lexenv cfp-tn
+ (ash (tn-offset arg-fun) word-shift))
+ (do-next-filler))
+ (constant
+ (inst lw lexenv code-tn
+ (- (ash (tn-offset arg-fun) word-shift)
+ other-pointer-lowtag))
+ (do-next-filler)))
+ (inst lw function lexenv
+ (- (ash closure-fun-slot word-shift)
+ fun-pointer-lowtag))
+ (do-next-filler)
+ (inst addu entry-point function
+ (- (ash simple-fun-code-offset word-shift)
+ fun-pointer-lowtag))))
+ (loop
+ (if (cdr filler)
+ (do-next-filler)
+ (return)))
+
+ (do-next-filler)
+ (note-this-location vop :call-site)
+ (inst j entry-point)
+ (inst nop))
+
+ ,@(ecase return
+ (:fixed
+ '((trace-table-entry trace-table-normal)
+ (emit-return-pc lra-label)
+ (default-unknown-values vop values nvals
+ move-temp temp lra-label)
+ (when cur-nfp
+ (load-stack-tn cur-nfp nfp-save))))
+ (:unknown
+ '((trace-table-entry trace-table-normal)
+ (emit-return-pc lra-label)
+ (note-this-location vop :unknown-return)
+ (receive-unknown-values values-start nvals start count
+ lra-label temp)
+ (when cur-nfp
+ (load-stack-tn cur-nfp nfp-save))))
+ (:tail))))))
(define-full-call call nil :fixed nil)
(move ocfp ocfp-arg)
(move lra lra-arg)
- ;; Clear the number stack if anything is there.
- (let ((cur-nfp (current-nfp-tn vop)))
- (when cur-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
-
- ;; And jump to the assembly-routine that does the bliting.
+ ;; Clear the number stack if anything is there and jump to the
+ ;; assembly-routine that does the bliting.
(inst j (make-fixup 'tail-call-variable :assembly-routine))
- (inst nop)))
+ (let ((cur-nfp (current-nfp-tn vop)))
+ (if cur-nfp
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))
+ (inst nop)))))
\f
;;;; Unknown values return:
;;; Return a single value using the unknown-values convention.
-;;;
+;;;
(define-vop (return-single)
(:args (ocfp :scs (any-reg))
- (return-pc :scs (descriptor-reg))
- (value))
+ (return-pc :scs (descriptor-reg))
+ (value))
(:ignore value)
(:temporary (:scs (interior-reg)) lip)
(:vop-var vop)
(trace-table-entry trace-table-fun-epilogue)
(let ((cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))))
;; Clear the control stack, and restore the frame pointer.
(move csp-tn cfp-tn)
(move cfp-tn ocfp)
;;;
(define-vop (return)
(:args (ocfp :scs (any-reg))
- (return-pc :scs (descriptor-reg) :to (:eval 1))
- (values :more t))
+ (return-pc :scs (descriptor-reg) :to (:eval 1))
+ (values :more t))
(:ignore values)
(:info nvals)
(:temporary (:sc descriptor-reg :offset a0-offset :from (:eval 0)) a0)
(trace-table-entry trace-table-fun-epilogue)
(let ((cur-nfp (current-nfp-tn vop)))
(when cur-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
- ;; Establish the values pointer and values count.
- (move val-ptr cfp-tn)
- (inst li nargs (fixnumize nvals))
- ;; restore the frame pointer and clear as much of the control
- ;; stack as possible.
- (move cfp-tn ocfp)
- (inst addu csp-tn val-ptr (* nvals n-word-bytes))
- ;; pre-default any argument register that need it.
- (when (< nvals register-arg-count)
- (dolist (reg (subseq (list a0 a1 a2 a3 a4 a5) nvals))
- (move reg null-tn)))
- ;; And away we go.
- (lisp-return return-pc lip)
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))))
+ (cond ((= nvals 1)
+ ;; Clear the control stack, and restore the frame pointer.
+ (move csp-tn cfp-tn)
+ (move cfp-tn ocfp)
+ ;; Out of here.
+ (lisp-return return-pc lip :offset 2))
+ (t
+ ;; Establish the values pointer and values count.
+ (move val-ptr cfp-tn)
+ (inst li nargs (fixnumize nvals))
+ ;; restore the frame pointer and clear as much of the control
+ ;; stack as possible.
+ (move cfp-tn ocfp)
+ (inst addu csp-tn val-ptr (* nvals n-word-bytes))
+ ;; pre-default any argument register that need it.
+ (when (< nvals register-arg-count)
+ (dolist (reg (subseq (list a0 a1 a2 a3 a4 a5) nvals))
+ (move reg null-tn)))
+ ;; And away we go.
+ (lisp-return return-pc lip)))
(trace-table-entry trace-table-normal)))
;;; Do unknown-values return of an arbitrary number of values (passed on the
;;;
(define-vop (return-multiple)
(:args (ocfp-arg :scs (any-reg) :target ocfp)
- (lra-arg :scs (descriptor-reg) :target lra)
- (vals-arg :scs (any-reg) :target vals)
- (nvals-arg :scs (any-reg) :target nvals))
+ (lra-arg :scs (descriptor-reg) :target lra)
+ (vals-arg :scs (any-reg) :target vals)
+ (nvals-arg :scs (any-reg) :target nvals))
(:temporary (:sc any-reg :offset nl1-offset :from (:argument 0)) ocfp)
(:temporary (:sc descriptor-reg :offset lra-offset :from (:argument 1)) lra)
(let ((not-single (gen-label)))
;; Clear the number stack.
(let ((cur-nfp (current-nfp-tn vop)))
- (when cur-nfp
- (inst addu nsp-tn cur-nfp
- (bytes-needed-for-non-descriptor-stack-frame))))
+ (when cur-nfp
+ (inst addu nsp-tn cur-nfp
+ (bytes-needed-for-non-descriptor-stack-frame))))
;; Check for the single case.
(inst li a0 (fixnumize 1))
(move ocfp ocfp-arg)
(move lra lra-arg)
(move vals vals-arg)
- (move nvals nvals-arg)
+
(inst j (make-fixup 'return-multiple :assembly-routine))
- (inst nop))
+ (move nvals nvals-arg t))
(trace-table-entry trace-table-normal)))
;; Don't bother doing anything.
))
-;;; Get the lexical environment from it's passing location.
+;;; Get the lexical environment from its passing location.
;;;
(define-vop (setup-closure-environment)
(:temporary (:sc descriptor-reg :offset lexenv-offset :target closure
- :to (:result 0))
- lexenv)
+ :to (:result 0))
+ lexenv)
(:results (closure :scs (descriptor-reg)))
(:info label)
(:ignore label)
(move closure lexenv)))
;;; Copy a more arg from the argument area to the end of the current frame.
-;;; Fixed is the number of non-more arguments.
+;;; Fixed is the number of non-more arguments.
;;;
(define-vop (copy-more-arg)
(:temporary (:sc any-reg :offset nl0-offset) result)
(:temporary (:sc any-reg :offset nl1-offset) count)
(:temporary (:sc any-reg :offset nl2-offset) src)
- (:temporary (:sc any-reg :offset nl4-offset) dst)
+ (:temporary (:sc any-reg :offset nl3-offset) dst)
(:temporary (:sc descriptor-reg :offset l0-offset) temp)
(:info fixed)
(:generator 20
(let ((loop (gen-label))
- (do-regs (gen-label))
- (done (gen-label)))
+ (do-regs (gen-label))
+ (done (gen-label)))
(when (< fixed register-arg-count)
- ;; Save a pointer to the results so we can fill in register args.
- ;; We don't need this if there are more fixed args than reg args.
- (move result csp-tn))
+ ;; Save a pointer to the results so we can fill in register args.
+ ;; We don't need this if there are more fixed args than reg args.
+ (move result csp-tn))
;; Allocate the space on the stack.
(cond ((zerop fixed)
- (inst beq nargs-tn done)
- (inst addu csp-tn csp-tn nargs-tn))
- (t
- (inst addu count nargs-tn (fixnumize (- fixed)))
- (inst blez count done)
- (inst nop)
- (inst addu csp-tn csp-tn count)))
+ (inst beq nargs-tn done)
+ (inst addu csp-tn csp-tn nargs-tn))
+ (t
+ (inst addu count nargs-tn (fixnumize (- fixed)))
+ (inst blez count done)
+ (inst nop)
+ (inst addu csp-tn csp-tn count)))
(when (< fixed register-arg-count)
- ;; We must stop when we run out of stack args, not when we run out of
- ;; more args.
- (inst addu count nargs-tn (fixnumize (- register-arg-count))))
+ ;; We must stop when we run out of stack args, not when we run out of
+ ;; more args.
+ (inst addu count nargs-tn (fixnumize (- register-arg-count))))
;; Everything of interest in registers.
(inst blez count do-regs)
;; Initialize dst to be end of stack.
- (move dst csp-tn)
+ (move dst csp-tn t)
;; Initialize src to be end of args.
(inst addu src cfp-tn nargs-tn)
(emit-label do-regs)
(when (< fixed register-arg-count)
- ;; Now we have to deposit any more args that showed up in registers.
- ;; We know there is at least one more arg, otherwise we would have
- ;; branched to done up at the top.
- (inst subu count nargs-tn (fixnumize (1+ fixed)))
- (do ((i fixed (1+ i)))
- ((>= i register-arg-count))
- ;; Is this the last one?
- (inst beq count done)
- ;; Store it relative to the pointer saved at the start.
- (storew (nth i register-arg-tns) result (- i fixed))
- ;; Decrement count.
- (inst subu count (fixnumize 1))))
+ ;; Now we have to deposit any more args that showed up in registers.
+ ;; We know there is at least one more arg, otherwise we would have
+ ;; branched to done up at the top.
+ (inst subu count nargs-tn (fixnumize (1+ fixed)))
+ (do ((i fixed (1+ i)))
+ ((>= i register-arg-count))
+ ;; Is this the last one?
+ (inst beq count done)
+ ;; Store it relative to the pointer saved at the start.
+ (storew (nth i *register-arg-tns*) result (- i fixed))
+ ;; Decrement count.
+ (inst subu count (fixnumize 1))))
(emit-label done))))
-;;; More args are stored consequtively on the stack, starting immediately at
-;;; the context pointer. The context pointer is not typed, so the lowtag is 0.
-;;;
+;;; More args are stored consecutively on the stack, starting
+;;; immediately at the context pointer. The context pointer is not
+;;; typed, so the lowtag is 0.
(define-full-reffer more-arg * 0 0 (descriptor-reg any-reg) * %more-arg)
-
;;; Turn more arg (context, count) into a list.
-;;;
+(defoptimizer (%listify-rest-args stack-allocate-result) ((&rest args))
+ t)
+
(define-vop (listify-rest-args)
(:args (context-arg :target context :scs (descriptor-reg))
- (count-arg :target count :scs (any-reg)))
+ (count-arg :target count :scs (any-reg)))
(:arg-types * tagged-num)
(:temporary (:scs (any-reg) :from (:argument 0)) context)
(:temporary (:scs (any-reg) :from (:argument 1)) count)
(:results (result :scs (descriptor-reg)))
(:translate %listify-rest-args)
(:policy :safe)
+ (:node-var node)
(:generator 20
- (let ((enter (gen-label))
- (loop (gen-label))
- (done (gen-label)))
+ (let* ((enter (gen-label))
+ (loop (gen-label))
+ (done (gen-label))
+ (dx-p (node-stack-allocate-p node))
+ (alloc-area-tn (if dx-p csp-tn alloc-tn)))
(move context context-arg)
(move count count-arg)
;; Check to see if there are any arguments.
(inst beq count zero-tn done)
- (move result null-tn)
+ (move result null-tn t)
;; We need to do this atomically.
(pseudo-atomic (pa-flag)
- ;; Allocate a cons (2 words) for each item.
- (inst or result alloc-tn list-pointer-lowtag)
- (move dst result)
- (inst sll temp count 1)
- (inst b enter)
- (inst addu alloc-tn alloc-tn temp)
-
- ;; Store the current cons in the cdr of the previous cons.
- (emit-label loop)
- (inst addu dst dst (* 2 n-word-bytes))
- (storew dst dst -1 list-pointer-lowtag)
-
- (emit-label enter)
- ;; Grab one value.
- (loadw temp context)
- (inst addu context context n-word-bytes)
-
- ;; Dec count, and if != zero, go back for more.
- (inst addu count count (fixnumize -1))
- (inst bne count zero-tn loop)
-
- ;; Store the value in the car (in delay slot)
- (storew temp dst 0 list-pointer-lowtag)
-
- ;; NIL out the last cons.
- (storew null-tn dst 1 list-pointer-lowtag))
+ (when dx-p
+ (align-csp temp))
+ ;; Allocate a cons (2 words) for each item.
+ (inst srl result alloc-area-tn n-lowtag-bits)
+ (inst sll result n-lowtag-bits)
+ (inst or result list-pointer-lowtag)
+ (move dst result)
+ (inst sll temp count 1)
+ (inst b enter)
+ (inst addu alloc-area-tn temp)
+
+ ;; Store the current cons in the cdr of the previous cons.
+ (emit-label loop)
+ (inst addu dst dst (* 2 n-word-bytes))
+ (storew dst dst -1 list-pointer-lowtag)
+
+ (emit-label enter)
+ ;; Grab one value.
+ (loadw temp context)
+ (inst addu context n-word-bytes)
+
+ ;; Dec count, and if != zero, go back for more.
+ (inst addu count count (fixnumize -1))
+ (inst bne count zero-tn loop)
+
+ ;; Store the value in the car (in delay slot)
+ (storew temp dst 0 list-pointer-lowtag)
+
+ ;; NIL out the last cons.
+ (storew null-tn dst 1 list-pointer-lowtag))
(emit-label done))))
;;; Return the location and size of the more arg glob created by Copy-More-Arg.
(:arg-types tagged-num (:constant fixnum))
(:info fixed)
(:results (context :scs (descriptor-reg))
- (count :scs (any-reg)))
+ (count :scs (any-reg)))
(:result-types t tagged-num)
(:note "more-arg-context")
(:generator 5
(:save-p :compute-only)
(:generator 3
(let ((err-lab
- (generate-error-code vop invalid-arg-count-error nargs)))
+ (generate-error-code vop invalid-arg-count-error nargs)))
(cond ((zerop count)
- (inst bne nargs zero-tn err-lab)
- (inst nop))
- (t
- (inst li temp (fixnumize count))
- (inst bne nargs temp err-lab)
- (inst nop))))))
+ (inst bne nargs zero-tn err-lab)
+ (inst nop))
+ (t
+ (inst li temp (fixnumize count))
+ (inst bne nargs temp err-lab)
+ (inst nop))))))
;;; Various other error signalers.
;;;
(macrolet ((frob (name error translate &rest args)
- `(define-vop (,name)
- ,@(when translate
- `((:policy :fast-safe)
- (:translate ,translate)))
- (:args ,@(mapcar #'(lambda (arg)
- `(,arg :scs (any-reg descriptor-reg)))
- args))
- (:vop-var vop)
- (:save-p :compute-only)
- (:generator 1000
- (error-call vop ,error ,@args)))))
+ `(define-vop (,name)
+ ,@(when translate
+ `((:policy :fast-safe)
+ (:translate ,translate)))
+ (:args ,@(mapcar #'(lambda (arg)
+ `(,arg :scs (any-reg descriptor-reg)))
+ args))
+ (:vop-var vop)
+ (:save-p :compute-only)
+ (:generator 1000
+ (error-call vop ,error ,@args)))))
(frob arg-count-error invalid-arg-count-error
sb!c::%arg-count-error nargs)
(frob type-check-error object-not-type-error sb!c::%type-check-error
(frob unknown-key-arg-error unknown-key-arg-error
sb!c::%unknown-key-arg-error key)
(frob nil-fun-returned-error nil-fun-returned-error nil fun))
+
+;;; Single-stepping
+
+(define-vop (step-instrument-before-vop)
+ (:policy :fast-safe)
+ (:vop-var vop)
+ (:generator 3
+ ;; Stub! See the PPC backend for an example.
+ (note-this-location vop :step-before-vop)))
projects / sbcl.git / blobdiff