Created
April 24, 2022 03:05
-
-
Save nicball/f9e4c287fa81081060cafef2d35bca52 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| open import Agda.Builtin.Int using (Int; pos) | |
| open import Data.Bool using (T) | |
| open import Data.Fin using (Fin; zero; suc) | |
| open import Data.Nat using (ℕ) | |
| open import Data.Product using (_×_) renaming (_,_ to ⟨_,_⟩) | |
| open import Data.Vec using (Vec; []; _∷_; _[_]=_; here; there; _++_) | |
| open import Relation.Binary.PropositionalEquality using (_≡_; refl) | |
| open import Relation.Nullary.Decidable using (True; isYes) | |
| open import Relation.Nullary using (Dec; yes; no) | |
| data JvmType : Set where | |
| int long float double ref : JvmType | |
| _≟_ : (a : JvmType) → (b : JvmType) → Dec (a ≡ b) | |
| int ≟ int = yes refl | |
| int ≟ long = no λ() | |
| int ≟ float = no λ() | |
| int ≟ double = no λ() | |
| int ≟ ref = no λ() | |
| long ≟ int = no λ() | |
| long ≟ long = yes refl | |
| long ≟ float = no λ() | |
| long ≟ double = no λ() | |
| long ≟ ref = no λ() | |
| float ≟ int = no λ() | |
| float ≟ long = no λ() | |
| float ≟ float = yes refl | |
| float ≟ double = no λ() | |
| float ≟ ref = no λ() | |
| double ≟ int = no λ() | |
| double ≟ long = no λ() | |
| double ≟ float = no λ() | |
| double ≟ double = yes refl | |
| double ≟ ref = no λ() | |
| ref ≟ int = no λ() | |
| ref ≟ long = no λ() | |
| ref ≟ float = no λ() | |
| ref ≟ double = no λ() | |
| ref ≟ ref = yes refl | |
| infixl 20 _,_ | |
| data OperandStack : Set where | |
| empty : OperandStack | |
| _,_ : OperandStack → JvmType → OperandStack | |
| Locals : ℕ → Set | |
| Locals = Vec JvmType | |
| infix 4 _[_]≟_ | |
| _[_]≟_ : {n : ℕ} → (v : Locals n) → (i : Fin n) → (a : JvmType) → Dec (v [ i ]= a) | |
| _[_]≟_ (x ∷ xs) zero a with x ≟ a | |
| ... | yes x≡a rewrite x≡a = yes here | |
| ... | no ¬x≡a = no λ { here → ¬x≡a refl } | |
| _[_]≟_ (x ∷ xs) (suc n) a with xs [ n ]≟ a | |
| ... | yes xsn≡a = yes (there xsn≡a) | |
| ... | no ¬xsn≡a = no λ { (there xsn≡a) → ¬xsn≡a xsn≡a } | |
| data SequentialCode {n : ℕ} (l : Locals n) : OperandStack → OperandStack → Set where | |
| iconst : ∀ {s} → Int → SequentialCode l s (s , int) | |
| iadd : ∀ {s} → SequentialCode l (s , int , int) (s , int) | |
| iload : ∀ {s} → (i : Fin n) → {True (l [ i ]≟ int)} → SequentialCode l s (s , int) | |
| istore : ∀ {s} → (i : Fin n) → {True (l [ i ]≟ int)} → SequentialCode l (s , int) s | |
| _,_ : ∀ {s t u} → SequentialCode l s t → SequentialCode l t u → SequentialCode l s u | |
| BasicBlockRef : ℕ → Set | |
| BasicBlockRef = Fin | |
| data Jump (bc : ℕ) : OperandStack → OperandStack → Set where | |
| ifICmpEq : ∀ {s} → BasicBlockRef bc × BasicBlockRef bc → Jump bc (s , int , int) s | |
| ireturn : ∀ {s} → Jump bc (s , int) s | |
| data BasicBlock {n : ℕ} (l : Locals n) (bc : ℕ) : Set where | |
| _,_ : ∀ {s} → SequentialCode l empty s → Jump bc s empty → BasicBlock l bc | |
| record Method {n : ℕ} (args : Locals n) : Set where | |
| field | |
| localsCount : ℕ | |
| locals : Locals localsCount | |
| blockCount : ℕ | |
| blocks : Vec (BasicBlock (args ++ locals) blockCount) blockCount | |
| simpleFunc : Method [] | |
| simpleFunc = | |
| record | |
| { localsCount = _ | |
| ; locals = int ∷ float ∷ long ∷ [] | |
| ; blockCount = _ | |
| ; blocks = | |
| iconst (pos 1) , | |
| iload zero , | |
| iadd , | |
| istore zero , | |
| iload zero , | |
| iconst (pos 100) , | |
| ifICmpEq (⟨ suc zero , zero ⟩) | |
| ∷ | |
| iload zero , | |
| ireturn | |
| ∷ | |
| [] | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment