;;; Return a wired TN describing the N'th full call argument passing
;;; location.
-;;;
(!def-vm-support-routine standard-arg-location (n)
(declare (type unsigned-byte n))
(if (< n register-arg-count)
(vector-push-extend nil
(ir2-component-constants (component-info component))))
(values))
-
\f
;;;; Frame hackery:
;;; Used for setting up the Old-FP in local call.
-;;;
(define-vop (current-fp)
(:results (val :scs (any-reg)))
(:generator 1
;;; Used for computing the caller's NFP for use in known-values return. Only
;;; works assuming there is no variable size stuff on the nstack.
-;;;
(define-vop (compute-old-nfp)
(:results (val :scs (any-reg)))
(:vop-var vop)
(when nfp
(inst addi val nfp (bytes-needed-for-non-descriptor-stack-frame))))))
-
(define-vop (xep-allocate-frame)
(:info start-lab copy-more-arg-follows)
(:ignore copy-more-arg-follows)
;;; Allocate a partial frame for passing stack arguments in a full call. Nargs
;;; is the number of arguments passed. If no stack arguments are passed, then
;;; we don't have to do anything.
-;;;
(define-vop (allocate-full-call-frame)
(:info nargs)
(:results (res :scs (any-reg)))
(move res csp-tn)
(inst addi csp-tn csp-tn (* nargs n-word-bytes)))))
-
;;; Emit code needed at the return-point from an unknown-values call
;;; for a fixed number of values. Values is the head of the TN-REF
;;; list for the locations that the values are to be received into.
((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)))
+ (inst b defaulting-done)
(trace-table-entry trace-table-normal))))))
(inst compute-code-from-lra code-tn code-tn lra-label temp)))
;;; Args and Nargs are TNs wired to the named locations. We must
;;; explicitly allocate these TNs, since their lifetimes overlap with the
;;; results Start and Count (also, it's nice to be able to target them).
-;;;
(defun receive-unknown-values (args nargs start count lra-label temp)
(declare (type tn args nargs start count temp))
(let ((variable-values (gen-label))
(values))
-;;; VOP that can be inherited by unknown values receivers. The main thing this
-;;; handles is allocation of the result temporaries.
-;;;
+;;; VOP that can be inherited by unknown values receivers. The main
+;;; thing this handles is allocation of the result temporaries.
(define-vop (unknown-values-receiver)
(:results
(start :scs (any-reg))
;;; Note: we can't use normal load-tn allocation for the fixed args, since all
;;; registers may be tied up by the more operand. Instead, we use
;;; MAYBE-LOAD-STACK-TN.
-;;;
(define-vop (call-local)
(:args (fp)
(nfp)
;;; Note: we can't use normal load-tn allocation for the fixed args, since all
;;; registers may be tied up by the more operand. Instead, we use
;;; MAYBE-LOAD-STACK-TN.
-;;;
(define-vop (multiple-call-local unknown-values-receiver)
(:args (fp)
(nfp)
;;; Note: we can't use normal load-tn allocation for the fixed args, since all
;;; registers may be tied up by the more operand. Instead, we use
;;; MAYBE-LOAD-STACK-TN.
-;;;
(define-vop (known-call-local)
(:args (fp)
(nfp)
;;; Note: we can't use normal load-tn allocation for the fixed args, since all
;;; registers may be tied up by the more operand. Instead, we use
;;; MAYBE-LOAD-STACK-TN.
-;;;
(define-vop (known-return)
(:args (old-fp :target old-fp-temp)
(return-pc :target return-pc-temp)
:from (:argument ,(if (eq return :tail) 0 1))
:to :eval)
lexenv))
- ;; alpha code suggests that function tn is not needed for named call
- (:temporary (:scs (descriptor-reg) :from (:argument 0) :to :eval)
- function)
+ ,@(unless named
+ '((:temporary (:scs (descriptor-reg) :from (:argument 0) :to :eval)
+ function)))
(:temporary (:sc any-reg :offset nargs-offset :to :eval)
nargs-pass)
(define-full-call multiple-call-variable nil :unknown t)
-;;; Defined separately, since needs special code that BLT's the arguments
-;;; down.
-;;;
+;;; Defined separately, since needs special code that BLT's the
+;;; arguments down.
(define-vop (tail-call-variable)
(:args
(args-arg :scs (any-reg) :target args)
\f
;;;; Unknown values return:
-
;;; Return a single value using the unknown-values convention.
-;;;
(define-vop (return-single)
(:args (old-fp :scs (any-reg))
(return-pc :scs (descriptor-reg))
;;; When there are stack values, we must initialize the argument pointer to
;;; point to the beginning of the values block (which is the beginning of the
;;; current frame.)
-;;;
(define-vop (return)
(:args
(old-fp :scs (any-reg))
(lisp-return return-pc lip)))
(trace-table-entry trace-table-normal)))
-;;; Do unknown-values return of an arbitrary number of values (passed on the
-;;; stack.) We check for the common case of a single return value, and do that
-;;; inline using the normal single value return convention. Otherwise, we
-;;; branch off to code that calls an assembly-routine.
-;;;
+;;; Do unknown-values return of an arbitrary number of values (passed
+;;; on the stack.) We check for the common case of a single return
+;;; value, and do that inline using the normal single value return
+;;; convention. Otherwise, we branch off to code that calls an
+;;; assembly-routine.
(define-vop (return-multiple)
(:args
(old-fp-arg :scs (any-reg) :to (:eval 1))
(move nvals nvals-arg)
(inst ba (make-fixup 'return-multiple :assembly-routine)))
(trace-table-entry trace-table-normal)))
-
-
\f
;;;; XEP hackery:
-
;;; We don't need to do anything special for regular functions.
-;;;
(define-vop (setup-environment)
(:info label)
(:ignore label)
))
;;; 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))
;;; Copy a more arg from the argument area to the end of the current frame.
;;; 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)
(emit-label done))))
-;;; 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.
-;;;
+;;; 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-vop (more-arg word-index-ref)
(:variant 0 0)
(:translate %more-arg))
-
;;; Turn more arg (context, count) into a list.
-;;;
(define-vop (listify-rest-args)
(:args (context-arg :target context :scs (descriptor-reg))
(count-arg :target count :scs (any-reg)))
DONE))
-;;; Return the location and size of the more arg glob created by Copy-More-Arg.
-;;; Supplied is the total number of arguments supplied (originally passed in
-;;; NARGS.) Fixed is the number of non-rest arguments.
-;;;
-;;; We must duplicate some of the work done by Copy-More-Arg, since at that
-;;; time the environment is in a pretty brain-damaged state, preventing this
-;;; info from being returned as values. What we do is compute
-;;; supplied - fixed, and return a pointer that many words below the current
-;;; stack top.
+;;; Return the location and size of the more arg glob created by
+;;; COPY-MORE-ARG. SUPPLIED is the total number of arguments supplied
+;;; (originally passed in NARGS.) Fixed is the number of non-rest
+;;; arguments.
;;;
+;;; We must duplicate some of the work done by COPY-MORE-ARG, since at
+;;; that time the environment is in a pretty brain-damaged state,
+;;; preventing this info from being returned as values. What we do is
+;;; compute (- SUPPLIED FIXED), and return a pointer that many words
+;;; below the current stack top.
(define-vop (more-arg-context)
(:policy :fast-safe)
(:translate sb!c::%more-arg-context)
(inst subi count supplied (fixnumize fixed))
(inst sub context csp-tn count)))
-
-;;; Signal wrong argument count error if Nargs isn't = to Count.
-;;;
-#|
-(define-vop (verify-argument-count)
- (:policy :fast-safe)
- (:translate sb!c::%verify-argument-count)
- (:args (nargs :scs (any-reg)))
- (:arg-types positive-fixnum (:constant t))
- (:info count)
- (:vop-var vop)
- (:save-p :compute-only)
- (:generator 3
- (let ((err-lab
- (generate-error-code vop invalid-argument-count-error nargs)))
- (inst cmpwi nargs (fixnumize count))
- (inst bne err-lab))))
-|#
(define-vop (verify-arg-count)
(:policy :fast-safe)
(:translate sb!c::%verify-arg-count)
(:generator 3
(inst twi :ne nargs (fixnumize count))))
-
;;; Signal various errors.
-;;;
(macrolet ((frob (name error translate &rest args)
`(define-vop (,name)
,@(when translate
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