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RTL compiler: Compile TC7 branches.

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* module/system/vm/assembler.scm:
* module/system/vm/disassembler.scm (code-annotation):
* module/language/cps/primitives.scm (*branching-primcall-arities*):
* module/language/cps/compile-rtl.scm (emit-rtl-sequence): Add support
  for compiling symbol?, variable?, vector?, and string? branches.
This commit is contained in:
Andy Wingo 2013-10-26 15:16:09 +02:00
parent 4fc6b4d2c5
commit be8b62ca7f
5 changed files with 57 additions and 4 deletions
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31
module/system/vm/assembler.scm
View file

@ -638,6 +638,37 @@ returned instead."
(let ((loc (intern-constant asm (make-static-procedure label))))
(emit-make-non-immediate asm dst loc)))
(define-syntax-rule (define-tc7-macro-assembler name tc7)
(define-macro-assembler (name asm slot invert? label)
(emit-br-if-tc7 asm slot invert? tc7 label)))
;; Keep in sync with tags.h. Part of Guile's ABI. Currently unused
;; macro assemblers are commented out.
(define-tc7-macro-assembler br-if-symbol 5)
(define-tc7-macro-assembler br-if-variable 7)
(define-tc7-macro-assembler br-if-vector 13)
;(define-tc7-macro-assembler br-if-weak-vector 13)
(define-tc7-macro-assembler br-if-string 21)
;(define-tc7-macro-assembler br-if-heap-number 23)
;(define-tc7-macro-assembler br-if-stringbuf 39)
;(define-tc7-macro-assembler br-if-bytevector 77)
;(define-tc7-macro-assembler br-if-pointer 31)
;(define-tc7-macro-assembler br-if-hashtable 29)
;(define-tc7-macro-assembler br-if-fluid 37)
;(define-tc7-macro-assembler br-if-dynamic-state 45)
;(define-tc7-macro-assembler br-if-frame 47)
;(define-tc7-macro-assembler br-if-objcode 53)
;(define-tc7-macro-assembler br-if-vm 55)
;(define-tc7-macro-assembler br-if-vm-cont 71)
;(define-tc7-macro-assembler br-if-rtl-program 69)
;(define-tc7-macro-assembler br-if-program 79)
;(define-tc7-macro-assembler br-if-weak-set 85)
;(define-tc7-macro-assembler br-if-weak-table 87)
;(define-tc7-macro-assembler br-if-array 93)
;(define-tc7-macro-assembler br-if-bitvector 95)
;(define-tc7-macro-assembler br-if-port 125)
;(define-tc7-macro-assembler br-if-smob 127)
(define-macro-assembler (begin-program asm label properties)
(emit-label asm label)
(let ((meta (make-meta label properties (asm-start asm))))

12
module/system/vm/disassembler.scm
View file

@ -214,9 +214,19 @@ address of that offset."
(((or 'br
'br-if-nargs-ne 'br-if-nargs-lt 'br-if-nargs-gt
'br-if-true 'br-if-null 'br-if-nil 'br-if-pair 'br-if-struct
'br-if-char 'br-if-tc7 'br-if-eq 'br-if-eqv 'br-if-equal
'br-if-char 'br-if-eq 'br-if-eqv 'br-if-equal
'br-if-= 'br-if-< 'br-if-<= 'br-if-> 'br-if->=) _ ... target)
(list "-> ~A" (vector-ref labels (- (+ offset target) start))))
(('br-if-tc7 slot invert? tc7 target)
(list "~A -> ~A"
(let ((tag (case tc7
((5) "symbol?")
((7) "variable?")
((13) "vector?")
((15) "string?")
(else (number->string tc7)))))
(if invert? (string-append "not " tag) tag))
(vector-ref labels (- (+ offset target) start))))
(('prompt tag escape-only? proc-slot handler)
;; The H is for handler.
(list "H -> ~A" (vector-ref labels (- (+ offset handler) start))))