34 lines
1019 B
Racket
34 lines
1019 B
Racket
#lang racket
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(require (prefix-in bril: bril/lang))
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(require "aarch64var.rkt")
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; only deals with int64 type!
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(define (bril-instr-to-aarch64var bril-instr)
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(match bril-instr
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[(bril:Label label) (Label label)]
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[(bril:ConstantInstr dest-name _ (bril:Int const-val))
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(list (LMov (Imm const-val) (Var dest-name)))]
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[(bril:ValueInstr op dest type args _ _)
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(bril-value-instr-to-aarch64 op dest args)]
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[(bril:EffectInstr op args _ _)
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(match op
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['return (bril-return-to-aarch64var args)])]))
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(define (bril-value-instr-to-aarch64 op dest args)
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(case op
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['add (list (Add (Var (list-ref args 0))
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(Var (list-ref args 1))
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(Var dest)))]
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['sub (list (Sub (Var (list-ref args 0))
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(Var (list-ref args 1))
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(Var dest)))]))
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(define (bril-return-to-aarch64var args)
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(match args
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[(list var)
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(list (LMov (Reg 'x0) (Var (list-ref args 0)))
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(RetDefault))]
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[_ (list (RetDefault))]))
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