2006-11-23 19:44:29 -05:00
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2006-12-04 19:00:43 -05:00
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2006-11-23 19:48:14 -05:00
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;;; 9.0: * calls (gensym <symbol>) instead of
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;;; (gensym (symbol->string <symbol>)) in order to avoid incrementing
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;;; gensym-count.
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2006-11-23 19:44:29 -05:00
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;;; 6.7: * open-coded top-level-value, car, cdr
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;;; 6.2: * side-effects now modify the dirty-vector
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;;; * added bwp-object?
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;;; * added pointer-value
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;;; * added tcbuckets
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;;; 6.1: * added case-lambda, dropped lambda
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;;; 6.0: * basic compiler
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(let ()
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(define-syntax cond-expand
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(lambda (x)
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(syntax-case x ()
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[(_ test conseq altern)
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(if (eval (syntax-object->datum #'test))
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#'conseq
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#'altern)])))
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(cond-expand (eq? "" "")
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(include "record-case.chez.ss")
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(include "record-case.ss"))
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(include "set-operations.ss")
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(define open-coded-primitives
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;;; these primitives, when found in operator position with the correct
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;;; number of arguments, will be open-coded by the generator. If an
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;;; incorrect number of args is detected, or if they appear in non-operator
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;;; position, then they cannot be open-coded, and the pcb-primitives table
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;;; is consulted for a reference of the pcb slot containing the primitive.
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;;; If it's not found there, an error is signalled.
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;;;
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;;; prim-name args
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'([$constant-ref 1 value]
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[$constant-set! 2 effect]
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[$pcb-ref 1 value]
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[$pcb-set! 2 effect]
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;;; type predicates
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[fixnum? 1 pred]
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[immediate? 1 pred]
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[boolean? 1 pred]
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[char? 1 pred]
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[pair? 1 pred]
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[symbol? 1 pred]
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[vector? 1 pred]
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[string? 1 pred]
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[procedure? 1 pred]
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[null? 1 pred]
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[eof-object? 1 pred]
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[bwp-object? 1 pred]
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[$unbound-object? 1 pred]
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[$forward-ptr? 1 pred]
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[not 1 pred]
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[pointer-value 1 value]
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[eq? 2 pred]
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;;; fixnum primitives
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[$fxadd1 1 value]
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[$fxsub1 1 value]
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[$fx+ 2 value]
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[$fx- 2 value]
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[$fx* 2 value]
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[$fxsll 2 value]
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[$fxsra 2 value]
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[$fxlogand 2 value]
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[$fxlogor 2 value]
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[$fxlogxor 2 value]
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[$fxlognot 1 value]
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[$fxquotient 2 value]
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[$fxmodulo 2 value]
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;;; fixnum predicates
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[$fxzero? 1 pred]
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[$fx= 2 pred]
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[$fx< 2 pred]
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[$fx<= 2 pred]
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[$fx> 2 pred]
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[$fx>= 2 pred]
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;;; character predicates
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[$char= 2 pred]
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[$char< 2 pred]
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[$char<= 2 pred]
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[$char> 2 pred]
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[$char>= 2 pred]
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;;; character conversion
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[$fixnum->char 1 value]
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[$char->fixnum 1 value]
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;;; lists/pairs
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[cons 2 value]
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[list* positive value]
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[list any value]
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[car 1 value]
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[cdr 1 value]
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[$car 1 value]
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[$cdr 1 value]
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[$set-car! 2 effect]
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[$set-cdr! 2 effect]
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;;; vectors
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[$make-vector 1 value]
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[vector any value]
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[$vector-length 1 value]
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[$vector-ref 2 value]
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[$vector-set! 3 effect]
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;;; strings
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[$make-string 1 value]
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[$string any value]
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[$string-length 1 value]
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[$string-ref 2 value]
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[$string-set! 3 effect]
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;;; symbols
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[$make-symbol 1 value]
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[$symbol-value 1 value]
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[$symbol-string 1 value]
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[$symbol-unique-string 1 value]
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[$set-symbol-value! 2 effect]
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[$set-symbol-string! 2 effect]
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[$set-symbol-unique-string! 2 effect]
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[$symbol-plist 1 value]
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[$set-symbol-plist! 2 effect]
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[primitive-ref 1 value]
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[primitive-set! 2 effect]
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[top-level-value 1 value]
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2006-11-23 19:48:14 -05:00
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;;; ports
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[port? 1 pred]
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[input-port? 1 pred]
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[output-port? 1 pred]
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[$make-port/input 7 value]
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[$make-port/output 7 value]
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[$make-port/both 7 value]
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[$port-handler 1 value]
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[$port-input-buffer 1 value]
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[$port-input-index 1 value]
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[$port-input-size 1 value]
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[$port-output-buffer 1 value]
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[$port-output-index 1 value]
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[$port-output-size 1 value]
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[$set-port-input-index! 2 effect]
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[$set-port-input-size! 2 effect]
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[$set-port-output-index! 2 effect]
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[$set-port-output-size! 2 effect]
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2006-11-23 19:44:29 -05:00
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;;; tcbuckets
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[$make-tcbucket 4 value]
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[$tcbucket-key 1 value]
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[$tcbucket-val 1 value]
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[$tcbucket-next 1 value]
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2006-11-23 19:48:14 -05:00
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[$tcbucket-dlink-next 1 value]
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[$tcbucket-dlink-prev 1 value]
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2006-11-23 19:44:29 -05:00
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[$set-tcbucket-val! 2 effect]
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[$set-tcbucket-next! 2 effect]
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2006-11-23 19:48:14 -05:00
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[$set-tcbucket-dlink-next! 2 effect]
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[$set-tcbucket-dlink-prev! 2 effect]
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2006-11-23 19:44:29 -05:00
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[$set-tcbucket-tconc! 2 effect]
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;;; misc
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[eof-object 0 value]
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[void 0 value]
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[$exit 1 effect]
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[$fp-at-base 0 pred]
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[$current-frame 0 value]
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2006-12-01 10:02:05 -05:00
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[$arg-list 0 value]
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2006-11-23 19:44:29 -05:00
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[$seal-frame-and-call 1 tail]
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[$frame->continuation 1 value]
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;;;
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;;; records
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;;;
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[$make-record 2 value]
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[$record? 1 pred]
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[$record/rtd? 2 pred]
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[$record-rtd 1 value]
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[$record-ref 2 value]
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[$record-set! 3 effect]
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[$record any value]
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;;;
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;;; asm
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;;;
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[$code? 1 pred]
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[$code-size 1 value]
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[$code-reloc-vector 1 value]
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[$code-freevars 1 value]
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[$code-ref 2 value]
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[$code-set! 3 value]
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[$code->closure 1 value]
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2006-12-04 09:54:28 -05:00
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[$closure-code 1 value]
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2006-11-23 19:44:29 -05:00
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;;;
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[$make-call-with-values-procedure 0 value]
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[$make-values-procedure 0 value]
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))
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(define (primitive-context x)
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(cond
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[(assq x open-coded-primitives) => caddr]
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[else (error 'primitive-context "unknown prim ~s" x)]))
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(define (open-codeable? x)
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(cond
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[(assq x open-coded-primitives) #t]
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[else #f]))
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(define (open-coded-primitive-args x)
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(cond
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[(assq x open-coded-primitives) => cadr]
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[else (error 'open-coded-primitive-args "invalid ~s" x)]))
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;;; end of primitives table section
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(define-record constant (value))
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(define-record code-loc (label))
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(define-record foreign-label (label))
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2006-12-03 11:23:03 -05:00
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(define-record var (name assigned referenced))
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2006-11-23 19:44:29 -05:00
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(define-record cp-var (idx))
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(define-record frame-var (idx))
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(define-record new-frame (base-idx size body))
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(define-record save-cp (loc))
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(define-record eval-cp (check body))
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(define-record return (value))
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(define-record call-cp
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2006-12-04 22:43:42 -05:00
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(call-convention label save-cp? rp-convention base-idx arg-count live-mask))
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2006-12-04 22:05:44 -05:00
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(define-record tailcall-cp (convention label arg-count))
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2006-11-23 19:44:29 -05:00
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(define-record primcall (op arg*))
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(define-record primref (name))
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(define-record conditional (test conseq altern))
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(define-record bind (lhs* rhs* body))
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(define-record recbind (lhs* rhs* body))
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(define-record fix (lhs* rhs* body))
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(define-record seq (e0 e1))
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2006-12-04 20:13:21 -05:00
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(define-record case-info (label args proper))
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2006-12-04 19:58:24 -05:00
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(define-record clambda-case (info body))
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2006-12-04 19:05:02 -05:00
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(define-record clambda (label cases free))
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2006-11-23 19:44:29 -05:00
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(define-record closure (code free*))
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(define-record funcall (op rand*))
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2006-12-04 22:05:44 -05:00
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(define-record jmpcall (label op rand*))
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2006-11-23 19:44:29 -05:00
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(define-record appcall (op rand*))
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(define-record forcall (op rand*))
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(define-record codes (list body))
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(define-record assign (lhs rhs))
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(define (unique-var x)
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2006-12-03 11:23:03 -05:00
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(make-var (gensym x) #f #f))
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2006-11-23 19:44:29 -05:00
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(define (recordize x)
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(define (gen-fml* fml*)
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(cond
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[(pair? fml*)
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(cons (unique-var (car fml*))
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(gen-fml* (cdr fml*)))]
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[(symbol? fml*)
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(unique-var fml*)]
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[else '()]))
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(define (properize fml*)
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(cond
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[(pair? fml*)
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(cons (car fml*) (properize (cdr fml*)))]
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[(null? fml*) '()]
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[else (list fml*)]))
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(define (extend-env fml* nfml* env)
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(cons (cons fml* nfml*) env))
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(define (quoted-sym x)
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(if (and (list? x)
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(fx= (length x) 2)
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(eq? 'quote (car x))
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(symbol? (cadr x)))
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(cadr x)
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(error 'quoted-sym "not a quoted symbol ~s" x)))
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(define (quoted-string x)
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(if (and (list? x)
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(fx= (length x) 2)
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(eq? 'quote (car x))
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(string? (cadr x)))
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(cadr x)
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(error 'quoted-string "not a quoted string ~s" x)))
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(define (lookup^ x lhs* rhs*)
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(cond
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[(pair? lhs*)
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(if (eq? x (car lhs*))
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(car rhs*)
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(lookup^ x (cdr lhs*) (cdr rhs*)))]
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[(eq? x lhs*) rhs*]
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[else #f]))
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(define (lookup x env)
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(cond
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[(pair? env)
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(or (lookup^ x (caar env) (cdar env))
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(lookup x (cdr env)))]
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[else #f]))
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(define (E x env)
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(cond
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[(pair? x)
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(case (car x)
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[(quote) (make-constant (cadr x))]
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[(if)
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(make-conditional
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(E (cadr x) env)
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(E (caddr x) env)
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(E (cadddr x) env))]
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[(set!)
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(let ([lhs (cadr x)] [rhs (caddr x)])
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(make-assign
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(or (lookup lhs env)
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(error 'recordize "invalid assignment ~s" x))
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(E rhs env)))]
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[(begin)
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(let f ([a (cadr x)] [d (cddr x)])
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(cond
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[(null? d) (E a env)]
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[else
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|
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(make-seq
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(E a env)
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(f (car d) (cdr d)))]))]
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[(letrec)
|
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(unless (fx= (length x) 3) (syntax-error x))
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(let ([bind* (cadr x)] [body (caddr x)])
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(let ([lhs* (map car bind*)]
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[rhs* (map cadr bind*)])
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(let ([nlhs* (gen-fml* lhs*)])
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(let ([env (extend-env lhs* nlhs* env)])
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(make-recbind nlhs*
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(map (lambda (rhs) (E rhs env)) rhs*)
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(E body env))))))]
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|
|
[(letrec)
|
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(unless (fx= (length x) 3) (syntax-error x))
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|
(let ([bind* (cadr x)] [body (caddr x)])
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|
|
(let ([lhs* (map car bind*)]
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|
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[rhs* (map cadr bind*)]
|
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|
|
[v* (map (lambda (x) '(void)) bind*)]
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|
|
[t* (map (lambda (x) (gensym)) bind*)])
|
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|
|
(E `((case-lambda
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|
|
|
[,lhs*
|
|
|
|
((case-lambda
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|
|
[,t*
|
|
|
|
(begin ,@(map (lambda (x v) `(set! ,x ,v)) lhs* t*)
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|
|
,body)])
|
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,@rhs*)])
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,@v*)
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|
env)))]
|
|
|
|
[(case-lambda)
|
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|
(let ([cls*
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|
|
(map
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|
|
(lambda (cls)
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|
|
|
(let ([fml* (car cls)] [body (cadr cls)])
|
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|
|
(let ([nfml* (gen-fml* fml*)])
|
|
|
|
(let ([body (E body (extend-env fml* nfml* env))])
|
|
|
|
(make-clambda-case
|
2006-12-04 19:58:24 -05:00
|
|
|
(make-case-info
|
2006-12-04 20:13:21 -05:00
|
|
|
(gensym)
|
2006-12-04 19:58:24 -05:00
|
|
|
(properize nfml*)
|
|
|
|
(list? fml*))
|
2006-11-23 19:44:29 -05:00
|
|
|
body)))))
|
|
|
|
(cdr x))])
|
2006-12-04 19:05:02 -05:00
|
|
|
(make-clambda (gensym) cls* #f))]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(foreign-call)
|
|
|
|
(let ([name (quoted-string (cadr x))] [arg* (cddr x)])
|
|
|
|
(make-forcall name
|
|
|
|
(map (lambda (x) (E x env)) arg*)))]
|
|
|
|
[(|#primitive|)
|
|
|
|
(let ([var (cadr x)])
|
|
|
|
(make-primref var))]
|
|
|
|
;;; [(|#primitive|)
|
|
|
|
;;; (let ([var (cadr x)])
|
|
|
|
;;; (if (primitive? var)
|
|
|
|
;;; (make-primref var)
|
|
|
|
;;; (error 'recordize "invalid primitive ~s" var)))]
|
|
|
|
[(top-level-value)
|
|
|
|
(let ([var (quoted-sym (cadr x))])
|
|
|
|
(if (eq? (expand-mode) 'bootstrap)
|
|
|
|
(error 'compile "reference to ~s in bootstrap mode" var)
|
2006-11-23 19:48:14 -05:00
|
|
|
;(make-primref var)
|
2006-11-23 19:44:29 -05:00
|
|
|
(make-funcall
|
|
|
|
(make-primref 'top-level-value)
|
|
|
|
(list (make-constant var)))))]
|
|
|
|
;;; [(top-level-value)
|
|
|
|
;;; (let ([var (quoted-sym (cadr x))])
|
|
|
|
;;; (if (eq? (expand-mode) 'bootstrap)
|
|
|
|
;;; (if (primitive? var)
|
|
|
|
;;; (make-primref var)
|
|
|
|
;;; (error 'compile "invalid primitive ~s" var))
|
|
|
|
;;; (make-funcall
|
|
|
|
;;; (make-primref 'top-level-value)
|
|
|
|
;;; (list (make-constant var)))))]
|
|
|
|
[(set-top-level-value!)
|
|
|
|
(make-funcall (make-primref 'set-top-level-value!)
|
|
|
|
(map (lambda (x) (E x env)) (cdr x)))]
|
|
|
|
[(memv)
|
|
|
|
(make-funcall
|
|
|
|
(make-primref 'memq)
|
|
|
|
(map (lambda (x) (E x env)) (cdr x)))]
|
|
|
|
[($apply)
|
|
|
|
(let ([proc (cadr x)] [arg* (cddr x)])
|
|
|
|
(make-appcall
|
|
|
|
(E proc env)
|
|
|
|
(map (lambda (x) (E x env)) arg*)))]
|
|
|
|
[(void)
|
|
|
|
(make-constant (void))]
|
|
|
|
[else
|
|
|
|
(make-funcall
|
|
|
|
(E (car x) env)
|
|
|
|
(map (lambda (x) (E x env)) (cdr x)))])]
|
|
|
|
[(symbol? x)
|
|
|
|
(or (lookup x env)
|
|
|
|
(error 'recordize "invalid reference in ~s" x))]
|
|
|
|
[else (error 'recordize "invalid expression ~s" x)]))
|
|
|
|
(E x '()))
|
|
|
|
|
|
|
|
(define (unparse x)
|
|
|
|
(define (E-args proper x)
|
|
|
|
(if proper
|
|
|
|
(map E x)
|
|
|
|
(let f ([a (car x)] [d (cdr x)])
|
|
|
|
(cond
|
|
|
|
[(null? d) (E a)]
|
|
|
|
[else (cons (E a) (f (car d) (cdr d)))]))))
|
|
|
|
(define (E x)
|
|
|
|
(record-case x
|
|
|
|
[(constant c) `(quote ,c)]
|
|
|
|
[(code-loc x) `(code-loc ,x)]
|
|
|
|
[(var x) (string->symbol (format "v:~a" x))]
|
|
|
|
[(primref x) x]
|
|
|
|
[(conditional test conseq altern)
|
|
|
|
`(if ,(E test) ,(E conseq) ,(E altern))]
|
|
|
|
[(primcall op arg*) `(,op . ,(map E arg*))]
|
|
|
|
[(bind lhs* rhs* body)
|
|
|
|
`(let ,(map (lambda (lhs rhs) (list (E lhs) (E rhs))) lhs* rhs*)
|
|
|
|
,(E body))]
|
|
|
|
[(recbind lhs* rhs* body)
|
|
|
|
`(letrec ,(map (lambda (lhs rhs) (list (E lhs) (E rhs))) lhs* rhs*)
|
|
|
|
,(E body))]
|
|
|
|
[(fix lhs* rhs* body)
|
|
|
|
`(fix ,(map (lambda (lhs rhs) (list (E lhs) (E rhs))) lhs* rhs*)
|
|
|
|
,(E body))]
|
|
|
|
[(seq e0 e1) `(begin ,(E e0) ,(E e1))]
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
|
|
|
`(clambda-case ,(E-args (case-info-proper info)
|
|
|
|
(case-info-args info))
|
|
|
|
,(E body))]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
2006-11-23 19:44:29 -05:00
|
|
|
`(case-lambda . ,(map E cls*))]
|
2006-12-04 19:05:02 -05:00
|
|
|
[(clambda label clauses free)
|
2006-11-23 19:44:29 -05:00
|
|
|
`(code ,label . ,(map E clauses))]
|
|
|
|
[(closure code free*)
|
|
|
|
`(closure ,(E code) ,(map E free*))]
|
|
|
|
[(codes list body)
|
|
|
|
`(codes ,(map E list)
|
|
|
|
,(E body))]
|
|
|
|
[(funcall rator rand*) `(funcall ,(E rator) . ,(map E rand*))]
|
2006-12-04 22:05:44 -05:00
|
|
|
[(jmpcall label rator rand*)
|
|
|
|
`(jmpcall ,label ,(E rator) . ,(map E rand*))]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(appcall rator rand*) `(appcall ,(E rator) . ,(map E rand*))]
|
|
|
|
[(forcall rator rand*) `(foreign-call ,rator . ,(map E rand*))]
|
|
|
|
[(assign lhs rhs) `(set! ,(E lhs) ,(E rhs))]
|
|
|
|
[(return x) `(return ,(E x))]
|
|
|
|
[(new-frame base-idx size body)
|
|
|
|
`(new-frame [base: ,base-idx]
|
|
|
|
[size: ,size]
|
|
|
|
,(E body))]
|
|
|
|
[(frame-var idx)
|
|
|
|
(string->symbol (format "fv.~a" idx))]
|
|
|
|
[(cp-var idx)
|
|
|
|
(string->symbol (format "cp.~a" idx))]
|
|
|
|
[(save-cp expr)
|
|
|
|
`(save-cp ,(E expr))]
|
|
|
|
[(eval-cp check body)
|
|
|
|
`(eval-cp ,check ,(E body))]
|
2006-12-04 22:43:42 -05:00
|
|
|
[(call-cp call-convention label save-cp? rp-convention base-idx arg-count live-mask)
|
2006-11-23 19:44:29 -05:00
|
|
|
`(call-cp [conv: ,call-convention]
|
2006-12-04 22:05:44 -05:00
|
|
|
[label: ,label]
|
2006-11-23 19:44:29 -05:00
|
|
|
[rpconv: ,rp-convention]
|
|
|
|
[base-idx: ,base-idx]
|
|
|
|
[arg-count: ,arg-count]
|
|
|
|
[live-mask: ,live-mask])]
|
|
|
|
[(foreign-label x) `(foreign-label ,x)]
|
|
|
|
[else (error 'unparse "invalid record ~s" x)]))
|
|
|
|
(E x))
|
|
|
|
|
|
|
|
(define (optimize-direct-calls x)
|
|
|
|
(define who 'optimize-direct-calls)
|
|
|
|
(define (make-conses ls)
|
|
|
|
(cond
|
|
|
|
[(null? ls) (make-constant '())]
|
|
|
|
[else
|
|
|
|
(make-primcall 'cons
|
|
|
|
(list (car ls) (make-conses (cdr ls))))]))
|
|
|
|
(define (properize lhs* rhs*)
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) (error who "improper improper")]
|
|
|
|
[(null? (cdr lhs*))
|
|
|
|
(list (make-conses rhs*))]
|
|
|
|
[else (cons (car rhs*) (properize (cdr lhs*) (cdr rhs*)))]))
|
|
|
|
(define (inline-case cls rand*)
|
|
|
|
(record-case cls
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
|
|
|
(record-case info
|
2006-12-04 20:13:21 -05:00
|
|
|
[(case-info label fml* proper)
|
2006-12-04 19:58:24 -05:00
|
|
|
(if proper
|
|
|
|
(and (fx= (length fml*) (length rand*))
|
|
|
|
(make-bind fml* rand* body))
|
|
|
|
(and (fx<= (length fml*) (length rand*))
|
|
|
|
(make-bind fml* (properize fml* rand*) body)))])]))
|
2006-11-23 19:44:29 -05:00
|
|
|
(define (try-inline cls* rand* default)
|
|
|
|
(cond
|
|
|
|
[(null? cls*) default]
|
|
|
|
[(inline-case (car cls*) rand*)]
|
|
|
|
[else (try-inline (cdr cls*) rand* default)]))
|
|
|
|
(define (inline rator rand*)
|
|
|
|
(record-case rator
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(try-inline cls* rand*
|
2006-12-04 19:00:43 -05:00
|
|
|
(make-funcall rator rand*))]
|
2006-11-23 19:44:29 -05:00
|
|
|
[else (make-funcall rator rand*)]))
|
|
|
|
(define (Expr x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) x]
|
|
|
|
[(var) x]
|
|
|
|
[(primref) x]
|
|
|
|
[(bind lhs* rhs* body)
|
|
|
|
(make-bind lhs* (map Expr rhs*) (Expr body))]
|
|
|
|
[(recbind lhs* rhs* body)
|
|
|
|
(make-recbind lhs* (map Expr rhs*) (Expr body))]
|
|
|
|
[(conditional test conseq altern)
|
|
|
|
(make-conditional
|
|
|
|
(Expr test)
|
|
|
|
(Expr conseq)
|
|
|
|
(Expr altern))]
|
|
|
|
[(seq e0 e1)
|
|
|
|
(make-seq (Expr e0) (Expr e1))]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
|
|
|
(make-clambda g
|
2006-11-23 19:44:29 -05:00
|
|
|
(map (lambda (x)
|
|
|
|
(record-case x
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
|
|
|
(make-clambda-case info (Expr body))]))
|
2006-12-04 19:05:02 -05:00
|
|
|
cls*)
|
|
|
|
#f)]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(primcall rator rand*)
|
|
|
|
(make-primcall rator (map Expr rand*))]
|
|
|
|
[(funcall rator rand*)
|
|
|
|
(inline (Expr rator) (map Expr rand*))]
|
|
|
|
[(appcall rator rand*)
|
|
|
|
(make-appcall (Expr rator) (map Expr rand*))]
|
|
|
|
[(forcall rator rand*)
|
|
|
|
(make-forcall rator (map Expr rand*))]
|
|
|
|
[(assign lhs rhs)
|
|
|
|
(make-assign lhs (Expr rhs))]
|
|
|
|
[else (error who "invalid expression ~s" (unparse x))]))
|
|
|
|
(Expr x))
|
|
|
|
|
|
|
|
(define lambda-both 0)
|
|
|
|
(define lambda-producer 0)
|
|
|
|
(define lambda-consumer 0)
|
|
|
|
(define lambda-none 0)
|
|
|
|
(define branching-producer 0)
|
|
|
|
|
|
|
|
(define (analyze-cwv x)
|
|
|
|
(define who 'analyze-cwv)
|
|
|
|
(define (lambda? x)
|
|
|
|
(record-case x
|
|
|
|
[(clambda) #t]
|
|
|
|
[else #f]))
|
|
|
|
(define (branching-producer? x)
|
|
|
|
(define (bt? x)
|
|
|
|
(record-case x
|
|
|
|
[(bind lhs* rhs* body) (bt? body)]
|
|
|
|
[(recbind lhs* rhs* body) (bt? body)]
|
|
|
|
[(conditional test conseq altern) #t]
|
|
|
|
[(seq e0 e1) (bt? e1)]
|
|
|
|
[else #f]))
|
|
|
|
(define (branching-clause? x)
|
|
|
|
(record-case x
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
2006-11-23 19:44:29 -05:00
|
|
|
(bt? body)]))
|
|
|
|
(record-case x
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(ormap branching-clause? cls*)]
|
|
|
|
[else #f]))
|
|
|
|
(define (analyze producer consumer)
|
|
|
|
(cond
|
|
|
|
[(and (lambda? producer) (lambda? consumer))
|
|
|
|
(set! lambda-both (fxadd1 lambda-both))]
|
|
|
|
[(lambda? producer)
|
|
|
|
(set! lambda-producer (fxadd1 lambda-producer))]
|
|
|
|
[(lambda? consumer)
|
|
|
|
(set! lambda-consumer (fxadd1 lambda-consumer))]
|
|
|
|
[else
|
|
|
|
(set! lambda-none (fxadd1 lambda-none))])
|
|
|
|
(when (branching-producer? producer)
|
|
|
|
(set! branching-producer (fxadd1 branching-producer)))
|
|
|
|
(printf "both=~s p=~s c=~s none=~s branching-prod=~s\n"
|
|
|
|
lambda-both lambda-producer lambda-consumer lambda-none
|
|
|
|
branching-producer))
|
|
|
|
(define (E x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) (void)]
|
|
|
|
[(var) (void)]
|
|
|
|
[(primref) (void)]
|
|
|
|
[(bind lhs* rhs* body)
|
|
|
|
(for-each E rhs*) (E body)]
|
|
|
|
[(recbind lhs* rhs* body)
|
|
|
|
(for-each E rhs*) (E body)]
|
|
|
|
[(conditional test conseq altern)
|
|
|
|
(E test)
|
|
|
|
(E conseq)
|
|
|
|
(E altern)]
|
|
|
|
[(seq e0 e1) (E e0) (E e1)]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(for-each
|
|
|
|
(lambda (x)
|
|
|
|
(record-case x
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body) (E body)]))
|
2006-11-23 19:44:29 -05:00
|
|
|
cls*)]
|
|
|
|
[(primcall rator rand*)
|
|
|
|
(for-each E rand*)
|
|
|
|
(when (and (eq? rator 'call-with-values) (fx= (length rand*) 2))
|
|
|
|
(analyze (car rand*) (cadr rand*)))]
|
|
|
|
[(funcall rator rand*)
|
|
|
|
(E rator) (for-each E rand*)
|
|
|
|
(when (and (record-case rator
|
|
|
|
[(primref op) (eq? op 'call-with-values)]
|
|
|
|
[else #f])
|
|
|
|
(fx= (length rand*) 2))
|
|
|
|
(analyze (car rand*) (cadr rand*)))]
|
|
|
|
[(appcall rator rand*)
|
|
|
|
(E rator) (for-each E rand*)]
|
|
|
|
[(forcall rator rand*)
|
|
|
|
(for-each E rand*)]
|
|
|
|
[(assign lhs rhs)
|
|
|
|
(E rhs)]
|
|
|
|
[else (error who "invalid expression ~s" (unparse x))]))
|
|
|
|
(E x))
|
|
|
|
|
|
|
|
(define (optimize-letrec x)
|
|
|
|
(define who 'optimize-letrec)
|
|
|
|
(define (extend-hash lhs* h ref)
|
|
|
|
(for-each (lambda (lhs) (put-hash-table! h lhs #t)) lhs*)
|
|
|
|
(lambda (x)
|
|
|
|
(unless (get-hash-table h x #f)
|
|
|
|
(put-hash-table! h x #t)
|
|
|
|
(ref x))))
|
|
|
|
(define (E* x* ref comp)
|
|
|
|
(cond
|
|
|
|
[(null? x*) '()]
|
|
|
|
[else
|
|
|
|
(cons (E (car x*) ref comp)
|
|
|
|
(E* (cdr x*) ref comp))]))
|
|
|
|
(define (do-rhs* i lhs* rhs* ref comp vref vcomp)
|
|
|
|
(cond
|
|
|
|
[(null? rhs*) '()]
|
|
|
|
[else
|
|
|
|
(let ([h (make-hash-table)])
|
|
|
|
(let ([ref
|
|
|
|
(lambda (x)
|
|
|
|
(unless (get-hash-table h x #f)
|
|
|
|
(put-hash-table! h x #t)
|
|
|
|
(ref x)
|
|
|
|
(when (memq x lhs*)
|
|
|
|
(vector-set! vref i #t))))]
|
|
|
|
[comp
|
|
|
|
(lambda ()
|
|
|
|
(vector-set! vcomp i #t)
|
|
|
|
(comp))])
|
|
|
|
(cons (E (car rhs*) ref comp)
|
|
|
|
(do-rhs* (fxadd1 i) lhs* (cdr rhs*) ref comp vref vcomp))))]))
|
|
|
|
(define (partition-rhs* i lhs* rhs* vref vcomp)
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) (values '() '() '() '() '() '())]
|
|
|
|
[else
|
|
|
|
(let-values
|
|
|
|
([(slhs* srhs* llhs* lrhs* clhs* crhs*)
|
|
|
|
(partition-rhs* (fxadd1 i) (cdr lhs*) (cdr rhs*) vref vcomp)]
|
|
|
|
[(lhs rhs) (values (car lhs*) (car rhs*))])
|
|
|
|
(cond
|
|
|
|
[(var-assigned lhs)
|
|
|
|
(values slhs* srhs* llhs* lrhs* (cons lhs clhs*) (cons rhs crhs*))]
|
|
|
|
[(clambda? rhs)
|
|
|
|
(values slhs* srhs* (cons lhs llhs*) (cons rhs lrhs*) clhs* crhs*)]
|
|
|
|
[(or (vector-ref vref i) (vector-ref vcomp i))
|
|
|
|
(values slhs* srhs* llhs* lrhs* (cons lhs clhs*) (cons rhs crhs*))]
|
|
|
|
[else
|
|
|
|
(values (cons lhs slhs*) (cons rhs srhs*) llhs* lrhs* clhs* crhs*)]
|
|
|
|
))]))
|
|
|
|
(define (do-recbind lhs* rhs* body ref comp)
|
|
|
|
(let ([h (make-hash-table)]
|
|
|
|
[vref (make-vector (length lhs*) #f)]
|
|
|
|
[vcomp (make-vector (length lhs*) #f)])
|
|
|
|
(let* ([ref (extend-hash lhs* h ref)]
|
|
|
|
[body (E body ref comp)])
|
|
|
|
(let ([rhs* (do-rhs* 0 lhs* rhs* ref comp vref vcomp)])
|
|
|
|
(let-values ([(slhs* srhs* llhs* lrhs* clhs* crhs*)
|
|
|
|
(partition-rhs* 0 lhs* rhs* vref vcomp)])
|
|
|
|
(let ([v* (map (lambda (x) (make-primcall 'void '())) clhs*)]
|
|
|
|
[t* (map (lambda (x) (unique-var 'tmp)) clhs*)])
|
|
|
|
(make-bind slhs* srhs*
|
|
|
|
(make-bind clhs* v*
|
|
|
|
(make-fix llhs* lrhs*
|
|
|
|
(make-bind t* crhs*
|
|
|
|
(build-assign* clhs* t* body)))))))))))
|
|
|
|
(define (build-assign* lhs* rhs* body)
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) body]
|
|
|
|
[else
|
|
|
|
(make-seq
|
|
|
|
(make-assign (car lhs*) (car rhs*))
|
|
|
|
(build-assign* (cdr lhs*) (cdr rhs*) body))]))
|
|
|
|
(define (E x ref comp)
|
|
|
|
(record-case x
|
|
|
|
[(constant) x]
|
|
|
|
[(var) (ref x) x]
|
|
|
|
[(assign lhs rhs)
|
|
|
|
(set-var-assigned! lhs #t)
|
|
|
|
(ref lhs)
|
|
|
|
(make-assign lhs (E rhs ref comp))]
|
|
|
|
[(primref) x]
|
|
|
|
[(bind lhs* rhs* body)
|
|
|
|
(let ([rhs* (E* rhs* ref comp)])
|
|
|
|
(let ([h (make-hash-table)])
|
|
|
|
(let ([body (E body (extend-hash lhs* h ref) comp)])
|
|
|
|
(make-bind lhs* rhs* body))))]
|
|
|
|
[(recbind lhs* rhs* body)
|
|
|
|
(if (null? lhs*)
|
|
|
|
(E body ref comp)
|
|
|
|
(do-recbind lhs* rhs* body ref comp))]
|
|
|
|
[(conditional e0 e1 e2)
|
|
|
|
(make-conditional (E e0 ref comp) (E e1 ref comp) (E e2 ref comp))]
|
|
|
|
[(seq e0 e1) (make-seq (E e0 ref comp) (E e1 ref comp))]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
|
|
|
(make-clambda g
|
2006-11-23 19:44:29 -05:00
|
|
|
(map (lambda (x)
|
|
|
|
(record-case x
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
2006-11-23 19:44:29 -05:00
|
|
|
(let ([h (make-hash-table)])
|
2006-12-04 19:58:24 -05:00
|
|
|
(let ([body (E body (extend-hash (case-info-args info) h ref) void)])
|
|
|
|
(make-clambda-case info body)))]))
|
2006-12-04 19:05:02 -05:00
|
|
|
cls*)
|
|
|
|
#f)]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(primcall rator rand*)
|
|
|
|
(when (memq rator '(call/cc call/cf))
|
|
|
|
(comp))
|
|
|
|
(make-primcall rator (E* rand* ref comp))]
|
|
|
|
[(funcall rator rand*)
|
|
|
|
(let ([rator (E rator ref comp)] [rand* (E* rand* ref comp)])
|
|
|
|
(record-case rator
|
|
|
|
[(primref op)
|
|
|
|
(when (memq op '(call/cc call/cf))
|
|
|
|
(comp))]
|
|
|
|
[else
|
|
|
|
(comp)])
|
|
|
|
(make-funcall rator rand*))]
|
|
|
|
[(appcall rator rand*)
|
|
|
|
(let ([rator (E rator ref comp)] [rand* (E* rand* ref comp)])
|
|
|
|
(record-case rator
|
|
|
|
[(primref op)
|
|
|
|
(when (memq op '(call/cc call/cf))
|
|
|
|
(comp))]
|
|
|
|
[else
|
|
|
|
(comp)])
|
|
|
|
(make-appcall rator rand*))]
|
|
|
|
[(forcall rator rand*)
|
|
|
|
(make-forcall rator (E* rand* ref comp))]
|
|
|
|
[else (error who "invalid expression ~s" (unparse x))]))
|
|
|
|
(E x (lambda (x) (error who "free var ~s found" x))
|
|
|
|
void))
|
|
|
|
|
2006-12-03 11:23:03 -05:00
|
|
|
;;; This pass was here before optimize-letrec was implemented.
|
2006-11-23 19:44:29 -05:00
|
|
|
(define (remove-letrec x)
|
|
|
|
(define who 'remove-letrec)
|
|
|
|
(define (Expr x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) x]
|
|
|
|
[(var) x]
|
|
|
|
[(primref) x]
|
|
|
|
[(bind lhs* rhs* body)
|
|
|
|
(make-bind lhs* (map Expr rhs*) (Expr body))]
|
|
|
|
[(recbind lhs* rhs* body)
|
|
|
|
(let ([t* (map (lambda (lhs) (unique-var 'tmp)) lhs*)]
|
|
|
|
[v* (map (lambda (lhs) (make-primcall 'void '())) lhs*)])
|
|
|
|
(make-bind lhs* v*
|
|
|
|
(make-bind t* (map Expr rhs*)
|
|
|
|
(let f ([lhs* lhs*] [t* t*])
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) (Expr body)]
|
|
|
|
[else
|
|
|
|
(make-seq
|
|
|
|
(make-assign (car lhs*) (car t*))
|
|
|
|
(f (cdr lhs*) (cdr t*)))])))))]
|
|
|
|
;[(fix lhs* rhs* body)
|
|
|
|
; (Expr (make-recbind lhs* rhs* body))]
|
|
|
|
[(fix lhs* rhs* body)
|
|
|
|
(make-fix lhs* (map Expr rhs*) (Expr body))]
|
|
|
|
[(conditional test conseq altern)
|
|
|
|
(make-conditional
|
|
|
|
(Expr test)
|
|
|
|
(Expr conseq)
|
|
|
|
(Expr altern))]
|
|
|
|
[(seq e0 e1)
|
|
|
|
(make-seq (Expr e0) (Expr e1))]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
|
|
|
(make-clambda g
|
2006-11-23 19:44:29 -05:00
|
|
|
(map (lambda (x)
|
|
|
|
(record-case x
|
2006-12-04 19:58:24 -05:00
|
|
|
[(clambda-case info body)
|
|
|
|
(make-clambda-case info (Expr body))]))
|
2006-12-04 19:05:02 -05:00
|
|
|
cls*)
|
|
|
|
#f)]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(primcall rator rand*)
|
|
|
|
(make-primcall rator (map Expr rand*))]
|
|
|
|
[(funcall rator rand*)
|
|
|
|
(make-funcall (Expr rator) (map Expr rand*))]
|
|
|
|
[(appcall rator rand*)
|
|
|
|
(make-appcall (Expr rator) (map Expr rand*))]
|
|
|
|
[(forcall rator rand*)
|
|
|
|
(make-forcall rator (map Expr rand*))]
|
|
|
|
[(assign lhs rhs)
|
|
|
|
(make-assign lhs (Expr rhs))]
|
|
|
|
[else (error who "invalid expression ~s" (unparse x))]))
|
|
|
|
(Expr x))
|
|
|
|
|
2006-12-03 11:23:03 -05:00
|
|
|
(define (uncover-assigned/referenced x)
|
|
|
|
(define who 'uncover-assigned/referenced)
|
2006-11-23 19:44:29 -05:00
|
|
|
(define (Expr* x*)
|
|
|
|
(for-each Expr x*))
|
2006-12-03 13:45:51 -05:00
|
|
|
(define (init-var x)
|
|
|
|
(set-var-assigned! x #f)
|
|
|
|
(set-var-referenced! x #f))
|
2006-11-23 19:44:29 -05:00
|
|
|
(define (Expr x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) (void)]
|
2006-12-03 11:23:03 -05:00
|
|
|
[(var) (set-var-referenced! x #t)]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(primref) (void)]
|
|
|
|
[(bind lhs* rhs* body)
|
2006-12-03 13:45:51 -05:00
|
|
|
(for-each init-var lhs*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(begin (Expr body) (Expr* rhs*))]
|
|
|
|
[(fix lhs* rhs* body)
|
2006-12-03 13:45:51 -05:00
|
|
|
(for-each init-var lhs*)
|
|
|
|
(Expr* rhs*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(Expr body)
|
|
|
|
(when (ormap var-assigned lhs*)
|
2006-12-03 11:23:03 -05:00
|
|
|
(error who "a fix lhs is assigned"))]
|
2006-11-23 19:44:29 -05:00
|
|
|
[(conditional test conseq altern)
|
|
|
|
(begin (Expr test) (Expr conseq) (Expr altern))]
|
|
|
|
[(seq e0 e1) (begin (Expr e0) (Expr e1))]
|
2006-12-04 19:00:43 -05:00
|
|
|
[(clambda g cls*)
|
2006-11-23 19:44:29 -05:00
|
|
|
(for-each
|
|
|
|
(lambda (cls)
|
2006-12-04 19:58:24 -05:00
|
|
|
(record-case cls
|
|
|
|
[(clambda-case info body)
|
|
|
|
(for-each init-var (case-info-args info))
|
|
|
|
(Expr body)]))
|
2006-11-23 19:44:29 -05:00
|
|
|
cls*)]
|
|
|
|
[(primcall rator rand*) (Expr* rand*)]
|
|
|
|
[(funcall rator rand*)
|
|
|
|
(begin (Expr rator) (Expr* rand*))]
|
|
|
|
[(appcall rator rand*)
|
|
|
|
(begin (Expr rator) (Expr* rand*))]
|
|
|
|
[(forcall rator rand*) (Expr* rand*)]
|
|
|
|
[(assign lhs rhs)
|
|
|
|
(set-var-assigned! lhs #t)
|
|
|
|
(Expr rhs)]
|
|
|
|
[else (error who "invalid expression ~s" (unparse x))]))
|
2006-12-03 11:23:03 -05:00
|
|
|
(Expr x)
|
|
|
|
x)
|
2006-11-23 19:44:29 -05:00
|
|
|
|
2006-12-05 20:45:36 -05:00
|
|
|
|
|
|
|
(define (optimize-primcall ctxt op rand*)
|
2006-12-05 21:05:04 -05:00
|
|
|
(define (giveup)
|
|
|
|
(make-funcall (make-primref op) rand*))
|
|
|
|
(define (known-value x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) x] ; known
|
|
|
|
[(primref) x] ; known
|
|
|
|
[(bind lhs* rhs* body) (known-value body)]
|
|
|
|
[(fix lhs* rhs* body) (known-value body)]
|
|
|
|
[(seq e0 e1) (known-value e1)]
|
|
|
|
[else #f]))
|
|
|
|
(define (mk-seq e0 e1) ;;; keep e1 seq-free.
|
|
|
|
(cond
|
|
|
|
[(and (primcall? e0) (eq? (primcall-op e0) 'void)) e1]
|
|
|
|
[(seq? e1)
|
|
|
|
(make-seq (make-seq e0 (seq-e0 e1)) (seq-e1 e1))]
|
|
|
|
[else
|
|
|
|
(make-seq e0 e1)]))
|
2006-12-05 20:45:36 -05:00
|
|
|
(case op
|
2006-12-05 21:05:04 -05:00
|
|
|
[(memv)
|
|
|
|
(cond
|
|
|
|
[(fx= (length rand*) 2)
|
|
|
|
(let ([x (car rand*)] [ls (cadr rand*)])
|
|
|
|
(cond
|
|
|
|
[(known-value ls) =>
|
|
|
|
(lambda (kls)
|
|
|
|
(record-case kls
|
|
|
|
[(constant t)
|
|
|
|
(cond
|
|
|
|
[(not (list? t)) (giveup)]
|
|
|
|
[(eq? ctxt 'e) (mk-seq x ls)]
|
|
|
|
[(andmap (lambda (x)
|
|
|
|
(if (number? x)
|
|
|
|
(fixnum? x)
|
|
|
|
#t))
|
|
|
|
t)
|
|
|
|
(optimize-primcall ctxt 'memq rand*)]
|
|
|
|
[else (giveup)])]
|
|
|
|
[else (giveup)]))]
|
|
|
|
[else (giveup)]))]
|
|
|
|
[else (giveup)])]
|
|
|
|
[else (giveup)]))
|
2006-12-05 20:45:36 -05:00
|
|
|
|
|
|
|
|
2006-12-03 13:45:51 -05:00
|
|
|
(define (copy-propagate x)
|
|
|
|
(define who 'copy-propagate)
|
|
|
|
(define the-void (make-primcall 'void '()))
|
|
|
|
(define (known-value x)
|
|
|
|
(record-case x
|
|
|
|
[(constant) x] ; known
|
|
|
|
[(primref) x] ; known
|
|
|
|
[(bind lhs* rhs* body) (known-value body)]
|
|
|
|
[(fix lhs* rhs* body) (known-value body)]
|
|
|
|
[(seq e0 e1) (known-value e1)]
|
|
|
|
[else #f]))
|
2006-12-05 20:45:36 -05:00
|
|
|
(define (same-values? x y)
|
|
|
|
(cond
|
|
|
|
[(constant? x)
|
|
|
|
(and (constant? y)
|
|
|
|
(eq? (constant-value x)
|
|
|
|
(constant-value y)))]
|
|
|
|
[(primref? x)
|
|
|
|
(and (primref? y)
|
|
|
|
(eq? (primref-name x)
|
|
|
|
(primref-name y)))]
|
|
|
|
[else #f]))
|
|
|
|
(define (predicate-value x)
|
|
|
|
(record-case x
|
|
|
|
[(constant t) (if t 't 'f)]
|
|
|
|
[(bind lhs rhs body) (predicate-value body)]
|
|
|
|
[(fix lhs rhs body) (predicate-value body)]
|
|
|
|
[(seq e0 e1) (predicate-value e1)]
|
|
|
|
[else #f]))
|
|
|
|
(define (do-conditional e0 e1 e2 k)
|
|
|
|
(let ([e0 (Pred e0)])
|
|
|
|
(cond
|
|
|
|
[(predicate-value e0) =>
|
|
|
|
(lambda (v)
|
|
|
|
(if (eq? v 't) (k e1) (k e2)))]
|
|
|
|
[else
|
|
|
|
(make-conditional e0 (k e1) (k e2))])))
|
2006-12-03 13:45:51 -05:00
|
|
|
(define (partition-referenced lhs* rhs*)
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) (values '() '() the-void)]
|
|
|
|
[else
|
|
|
|
(let ([lhs (car lhs*)] [rhs (car rhs*)])
|
|
|
|
(let-values ([(lhs* rhs* eff*)
|
|
|
|
(partition-referenced
|
|
|
|
(cdr lhs*) (cdr rhs*))])
|
|
|
|
(cond
|
|
|
|
[(var-referenced lhs)
|
|
|
|
(values (cons lhs lhs*) (cons rhs rhs*) eff*)]
|
|
|
|
[else
|
|
|
|
(values lhs* rhs* (mk-seq eff* (Effect rhs)))])))]))
|
|
|
|
(define (partition/assign-known lhs* rhs*)
|
|
|
|
(cond
|
|
|
|
[(null? lhs*) (values '() '() the-void)]
|
|
|
|
[else
|
|
|
|
(let ([lhs (car lhs*)] [rhs (car rhs*)])
|
|
|
|
(let-values ([(lhs* rhs* eff*)
|
|
|
|
(partition/assign-known
|
|
|
|
(cdr lhs*) (cdr rhs*))])
|
|
|
|
(cond
|
|
|
|
[(and (not (var-assigned lhs)) (known-value rhs)) =>
|
|
|
|
(lambda (v)
|
|
|
|
(set-var-referenced! lhs v)
|
|
|
|
(values lhs* rhs* (mk-seq eff* rhs)))]
|
|
|
|
[else
|
|
|
|
(values (cons lhs lhs*) (cons rhs rhs*) eff*)])))]))
|
|
|
|
(define (do-bind lhs* rhs* body k)
|
|
|
|
(let-values ([(lhs* rhs* eff0)
|
|
|
|
(partition-referenced lhs* rhs*)])
|
|
|
|
(let ([rhs* (map Value rhs*)])
|
|
|
|
(let-values ([(lhs* rhs* eff1)
|
|
|
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(partition/assign-known lhs* rhs*)])
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(let ([body
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(cond
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[(null? lhs*) (k body)]
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[else
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(make-bind lhs* rhs* (k body))])])
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(mk-seq (mk-seq eff0 eff1) body))))))
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(define (do-fix lhs* rhs* body k)
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(let-values ([(lhs* rhs* eff*)
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(partition-referenced lhs* rhs*)])
|
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(cond
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[(null? lhs*) (k body)]
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[else
|
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(make-fix lhs* (map Value rhs*) (k body))])))
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(define (mk-seq e0 e1) ;;; keep e1 seq-free.
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|
(cond
|
2006-12-05 20:45:36 -05:00
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[(and (primcall? e0) (eq? (primcall-op e0) 'void)) e1]
|
2006-12-03 13:45:51 -05:00
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[(seq? e1)
|
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(make-seq (make-seq e0 (seq-e0 e1)) (seq-e1 e1))]
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[else
|
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(make-seq e0 e1)]))
|
2006-12-04 19:00:43 -05:00
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|
(define (do-clambda g cls*)
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|
(make-clambda g
|
2006-12-03 13:45:51 -05:00
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|
(map (lambda (cls)
|
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|
(record-case cls
|
2006-12-04 19:58:24 -05:00
|
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|
[(clambda-case info body)
|
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|