X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fmips%2Falloc.lisp;h=1f6e3a735d048cb73483946ea10602e2653cfc7d;hb=5c4c126f50e6fb8184bf9ae4411d17327c24cb91;hp=9592288735c49c73c808926a349156158260ef4d;hpb=f4b46d15b6fe4ae78154c2940fb26459fb1d88a5;p=sbcl.git diff --git a/src/compiler/mips/alloc.lisp b/src/compiler/mips/alloc.lisp index 9592288..1f6e3a7 100644 --- a/src/compiler/mips/alloc.lisp +++ b/src/compiler/mips/alloc.lisp @@ -1,3 +1,14 @@ +;;;; allocation VOPs 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") @@ -8,7 +19,7 @@ (:temporary (:scs (descriptor-reg) :type list) ptr) (:temporary (:scs (descriptor-reg)) temp) (:temporary (:scs (descriptor-reg) :type list :to (:result 0) :target result) - res) + res) (:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag) (:info num) (:results (result :scs (descriptor-reg))) @@ -16,43 +27,43 @@ (:policy :safe) (:generator 0 (cond ((zerop num) - (move result null-tn)) - ((and star (= num 1)) - (move result (tn-ref-tn things))) - (t - (macrolet - ((store-car (tn list &optional (slot cons-car-slot)) - `(let ((reg - (sc-case ,tn - ((any-reg descriptor-reg) ,tn) - (zero zero-tn) - (null null-tn) - (control-stack - (load-stack-tn temp ,tn) - temp)))) - (storew reg ,list ,slot list-pointer-lowtag)))) - (let ((cons-cells (if star (1- num) num))) - (pseudo-atomic (pa-flag - :extra (* (pad-data-block cons-size) - cons-cells)) - (inst or res alloc-tn list-pointer-lowtag) - (move ptr res) - (dotimes (i (1- cons-cells)) - (store-car (tn-ref-tn things) ptr) - (setf things (tn-ref-across things)) - (inst addu ptr ptr (pad-data-block cons-size)) - (storew ptr ptr - (- cons-cdr-slot cons-size) - list-pointer-lowtag)) - (store-car (tn-ref-tn things) ptr) - (cond (star - (setf things (tn-ref-across things)) - (store-car (tn-ref-tn things) ptr cons-cdr-slot)) - (t - (storew null-tn ptr - cons-cdr-slot list-pointer-lowtag))) - (aver (null (tn-ref-across things))) - (move result res)))))))) + (move result null-tn)) + ((and star (= num 1)) + (move result (tn-ref-tn things))) + (t + (macrolet + ((store-car (tn list &optional (slot cons-car-slot)) + `(let ((reg + (sc-case ,tn + ((any-reg descriptor-reg) ,tn) + (zero zero-tn) + (null null-tn) + (control-stack + (load-stack-tn temp ,tn) + temp)))) + (storew reg ,list ,slot list-pointer-lowtag)))) + (let ((cons-cells (if star (1- num) num))) + (pseudo-atomic (pa-flag + :extra (* (pad-data-block cons-size) + cons-cells)) + (inst or res alloc-tn list-pointer-lowtag) + (move ptr res) + (dotimes (i (1- cons-cells)) + (store-car (tn-ref-tn things) ptr) + (setf things (tn-ref-across things)) + (inst addu ptr ptr (pad-data-block cons-size)) + (storew ptr ptr + (- cons-cdr-slot cons-size) + list-pointer-lowtag)) + (store-car (tn-ref-tn things) ptr) + (cond (star + (setf things (tn-ref-across things)) + (store-car (tn-ref-tn things) ptr cons-cdr-slot)) + (t + (storew null-tn ptr + cons-cdr-slot list-pointer-lowtag))) + (aver (null (tn-ref-across things))) + (move result res)))))))) (define-vop (list list-or-list*) (:variant nil)) @@ -65,7 +76,7 @@ (define-vop (allocate-code-object) (:args (boxed-arg :scs (any-reg)) - (unboxed-arg :scs (any-reg))) + (unboxed-arg :scs (any-reg))) (:results (result :scs (descriptor-reg))) (:temporary (:scs (non-descriptor-reg)) ndescr) (:temporary (:scs (any-reg) :from (:argument 0)) boxed) @@ -74,23 +85,22 @@ (:generator 100 (inst li ndescr (lognot lowtag-mask)) (inst addu boxed boxed-arg - (fixnumize (1+ code-trace-table-offset-slot))) + (fixnumize (1+ code-trace-table-offset-slot))) (inst and boxed ndescr) (inst srl unboxed unboxed-arg word-shift) (inst addu unboxed unboxed lowtag-mask) (inst and unboxed ndescr) (inst sll ndescr boxed (- n-widetag-bits word-shift)) (inst or ndescr code-header-widetag) - + (pseudo-atomic (pa-flag) (inst or result alloc-tn other-pointer-lowtag) + (inst addu alloc-tn boxed) (storew ndescr result 0 other-pointer-lowtag) (storew unboxed result code-code-size-slot other-pointer-lowtag) + (inst addu alloc-tn unboxed) (storew null-tn result code-entry-points-slot other-pointer-lowtag) - (inst addu alloc-tn boxed) - (inst addu alloc-tn unboxed)) - - (storew null-tn result code-debug-info-slot other-pointer-lowtag))) + (storew null-tn result code-debug-info-slot other-pointer-lowtag)))) (define-vop (make-fdefn) (:policy :fast-safe) @@ -101,28 +111,37 @@ (:results (result :scs (descriptor-reg) :from :argument)) (:generator 37 (with-fixed-allocation (result pa-flag temp fdefn-widetag fdefn-size) + (inst li temp (make-fixup "undefined_tramp" :foreign)) (storew name result fdefn-name-slot other-pointer-lowtag) (storew null-tn result fdefn-fun-slot other-pointer-lowtag) - (inst li temp (make-fixup "undefined_tramp" :foreign)) (storew temp result fdefn-raw-addr-slot other-pointer-lowtag)))) (define-vop (make-closure) (:args (function :to :save :scs (descriptor-reg))) (:info length stack-allocate-p) - (:ignore stack-allocate-p) (:temporary (:scs (non-descriptor-reg)) temp) (:temporary (:sc non-descriptor-reg :offset nl4-offset) pa-flag) (:results (result :scs (descriptor-reg))) (:generator 10 - (let ((size (+ length closure-info-offset))) - (inst li temp (logior (ash (1- size) n-widetag-bits) closure-header-widetag)) - (pseudo-atomic (pa-flag :extra (pad-data-block size)) - (inst or result alloc-tn fun-pointer-lowtag) - (storew temp result 0 fun-pointer-lowtag)) + (let* ((size (+ length closure-info-offset)) + (alloc-size (pad-data-block size))) + (pseudo-atomic (pa-flag :extra (if stack-allocate-p 0 alloc-size)) + (cond (stack-allocate-p + (align-csp result) + (inst srl result csp-tn n-lowtag-bits) + (inst addu csp-tn alloc-size)) + (t + (inst srl result alloc-tn n-lowtag-bits))) + (inst sll result n-lowtag-bits) + (inst or result fun-pointer-lowtag) + (inst li temp (logior (ash (1- size) n-widetag-bits) + closure-header-widetag)) + (storew temp result 0 fun-pointer-lowtag)) + (storew result result closure-self-slot fun-pointer-lowtag) (storew function result closure-fun-slot fun-pointer-lowtag)))) ;;; The compiler likes to be able to directly make value cells. -;;; +;;; (define-vop (make-value-cell) (:args (value :to :save :scs (descriptor-reg any-reg null zero))) (:temporary (:scs (non-descriptor-reg)) temp) @@ -152,8 +171,8 @@ (pseudo-atomic (pa-flag :extra (pad-data-block words)) (inst or result alloc-tn lowtag) (when type - (inst li temp (logior (ash (1- words) n-widetag-bits) type)) - (storew temp result 0 lowtag))))) + (inst li temp (logior (ash (1- words) n-widetag-bits) type)) + (storew temp result 0 lowtag))))) (define-vop (var-alloc) (:args (extra :scs (any-reg)))