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(import (scheme base)
(only (csc ir1)
make-call
make-constant
make-define-syntax
make-if
make-lambda
make-letrec
make-lexical-ref
make-lexical-set
make-library-ref
make-sequence)
(only (csc ir2)
ir2=?
make-apply
make-fix
make-atom
make-branch
make-call-closure
make-closure
make-kargs
make-klabel
make-ktail
make-update)
(only (csc testing)
assert-equal
test)
(csc cps))
(define (tail x)
(make-apply (make-lexical-ref 'tail #f) (list x)))
(test atom-const
(assert-equal ir2=?
(make-apply (make-lexical-ref 'tail #f) (list (make-constant 5)))
(ir1->ir2 (make-constant 5) tail)))
(test atom-lexical-ref
(assert-equal ir2=?
(make-apply (make-lexical-ref 'tail #f) (list (make-lexical-ref 'var #f)))
(ir1->ir2 (make-lexical-ref 'var #f) tail)))
(test atom-library-ref
(assert-equal ir2=?
(make-apply (make-lexical-ref 'tail #f)
(list (make-library-ref 'var '(csc builtins))))
(ir1->ir2 (make-library-ref 'var '(csc builtins)) tail)))
(test lexical-set
(assert-equal ir2=?
(make-update (make-lexical-ref 'var #f) (make-constant 5)
(make-apply (make-lexical-ref 'tail #f) (list (make-constant #f))))
(ir1->ir2 (make-lexical-set (make-lexical-ref 'var #f) (make-constant 5))
tail)))
(test no-op-define-syntax
(assert-equal ir2=?
(make-apply (make-lexical-ref 'tail #f) (list (make-constant #f)))
(ir1->ir2 (make-define-syntax 'name '(transformer))
tail)))
(test branch
(assert-equal ir2=?
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)) #f
(make-apply (make-lexical-ref 'tail #f) (list (make-lexical-ref 'generated-symbol #f)))))
(make-branch (make-constant #t)
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-constant 1)))
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-constant 2)))))
(ir1->ir2 (make-if (make-constant #t)
(make-constant 1)
(make-constant 2))
tail)))
(test call-closure
(assert-equal ir2=?
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)) #f
(make-apply (make-lexical-ref 'tail #f) (list (make-lexical-ref 'generated-symbol #f)))))
(make-apply (make-lexical-ref 'f #f) (list (make-lexical-ref 'generated-symbol #f)
(make-constant 1)
(make-constant 2))))
(ir1->ir2 (make-call (make-lexical-ref 'f #f) (list (make-constant 1) (make-constant 2)))
tail)))
(test sequence
(assert-equal ir2=?
(make-update (make-lexical-ref 'a #f) (make-constant 5)
(make-update (make-lexical-ref 'b #f) (make-constant 6)
(make-apply (make-lexical-ref 'tail #f) (list (make-constant #f)))))
(ir1->ir2 (make-sequence (make-lexical-set (make-lexical-ref 'a #f) (make-constant 5))
(make-lexical-set (make-lexical-ref 'b #f) (make-constant 6)))
tail)))
(test closure
(assert-equal ir2=?
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f)
(list (make-lexical-ref 'generated-symbol #f)
(make-lexical-ref 'a #f)
(make-lexical-ref 'b #f))
(make-lexical-ref 'c #f)
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-constant 5)))))
(make-apply (make-lexical-ref 'tail #f) (list (make-lexical-ref 'generated-symbol #f))))
(ir1->ir2 (make-lambda
(list (make-lexical-ref 'a #f) (make-lexical-ref 'b #f))
(make-lexical-ref 'c #f)
(make-constant 5))
tail)))
(test letrec-in-order
(assert-equal ir2=?
(make-fix
(list
(make-closure (make-lexical-ref 'f #f) (list (make-lexical-ref 'generated-symbol #f)
(make-lexical-ref 'x #f)) #f
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-constant 5)))))
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)) #f
(make-apply (make-lexical-ref 'tail #f) (list (make-lexical-ref 'generated-symbol #f)))))
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)
(make-lexical-ref 'a #f)) #f
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)) #f
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)))))
(make-fix
(list
(make-closure (make-lexical-ref 'generated-symbol #f) (list (make-lexical-ref 'generated-symbol #f)
(make-lexical-ref 'b #f)) #f
(make-apply (make-lexical-ref 'generated-symbol #f) (list (make-constant 10)))))
(make-apply (make-lexical-ref 'generated-symbol #f)
(list (make-lexical-ref 'generated-symbol #f)
(make-constant 2)))))))
(make-apply (make-lexical-ref 'generated-symbol #f)
(list (make-lexical-ref 'generated-symbol #f)
(make-constant 1))))))
(ir1->ir2 (make-letrec
#t
'(a f b)
'(#f #f #f)
(list (make-constant 1)
(make-lambda (list (make-lexical-ref 'x #f)) #f (make-constant 5))
(make-constant 2))
(make-constant 10))
tail)))
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