Use different graph operations to implement construction

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>
This commit is contained in:
2024-04-25 23:10:41 -07:00
parent b134c143ca
commit c00c8e3e85
4 changed files with 239 additions and 197 deletions

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@@ -52,20 +52,17 @@ record Program : Set where
field field
rootStmt : Stmt rootStmt : Stmt
private
buildResult = buildCfg rootStmt empty
graph : Graph graph : Graph
graph = proj₁ buildResult graph = buildCfg rootStmt
State : Set State : Set
State = Graph.Index graph State = Graph.Index graph
initialState : State initialState : State
initialState = Utils.proj₁ (proj₁ (proj₂ buildResult)) initialState = proj₁ (buildCfg-input rootStmt)
finalState : State finalState : State
finalState = Utils.proj₂ (proj₁ (proj₂ buildResult)) finalState = proj₁ (buildCfg-output rootStmt)
private private
vars-Set : StringSet vars-Set : StringSet

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@@ -1,8 +1,8 @@
module Language.Graphs where module Language.Graphs where
open import Language.Base open import Language.Base using (Expr; Stmt; BasicStmt; ⟨_⟩; _then_; if_then_else_; while_repeat_)
open import Data.Fin as Fin using (Fin; suc; zero; _↑ˡ_; _↑ʳ_) open import Data.Fin as Fin using (Fin; suc; zero)
open import Data.Fin.Properties as FinProp using (suc-injective) open import Data.Fin.Properties as FinProp using (suc-injective)
open import Data.List as List using (List; []; _∷_) open import Data.List as List using (List; []; _∷_)
open import Data.List.Membership.Propositional as ListMem using () open import Data.List.Membership.Propositional as ListMem using ()
@@ -15,7 +15,7 @@ open import Data.Vec.Properties using (cast-is-id; ++-assoc; lookup-++ˡ; cast-s
open import Relation.Binary.PropositionalEquality as Eq using (_≡_; sym; refl; subst; trans) open import Relation.Binary.PropositionalEquality as Eq using (_≡_; sym; refl; subst; trans)
open import Lattice open import Lattice
open import Utils using (x∈xs⇒fx∈fxs; _⊗_; _,_) open import Utils using (x∈xs⇒fx∈fxs; _⊗_; _,_; ∈-cartesianProduct)
record Graph : Set where record Graph : Set where
constructor MkGraph constructor MkGraph
@@ -31,157 +31,218 @@ record Graph : Set where
field field
nodes : Vec (List BasicStmt) size nodes : Vec (List BasicStmt) size
edges : List Edge edges : List Edge
inputs : List Index
outputs : List Index
empty : Graph _↑ˡ_ : ∀ {n} → (Fin n × Fin n) → ∀ m → (Fin (n Nat.+ m) × Fin (n Nat.+ m))
empty = record _↑ˡ_ (idx₁ , idx₂) m = (idx₁ Fin.↑ˡ m , idx₂ Fin.↑ˡ m)
{ size = 0
; nodes = [] _↑ʳ_ : ∀ {m} n → (Fin m × Fin m) → Fin (n Nat.+ m) × Fin (n Nat.+ m)
; edges = [] _↑ʳ_ n (idx₁ , idx₂) = (n Fin.↑ʳ idx₁ , n Fin.↑ʳ idx₂)
_↑ˡⁱ_ : ∀ {n} → List (Fin n) → ∀ m → List (Fin (n Nat.+ m))
_↑ˡⁱ_ l m = List.map (Fin._↑ˡ m) l
_↑ʳⁱ_ : ∀ {m} n → List (Fin m) → List (Fin (n Nat.+ m))
_↑ʳⁱ_ n l = List.map (n Fin.↑ʳ_) l
_↑ˡᵉ_ : ∀ {n} → List (Fin n × Fin n) → ∀ m → List (Fin (n Nat.+ m) × Fin (n Nat.+ m))
_↑ˡᵉ_ l m = List.map (_↑ˡ m) l
_↑ʳᵉ_ : ∀ {m} n → List (Fin m × Fin m) → List (Fin (n Nat.+ m) × Fin (n Nat.+ m))
_↑ʳᵉ_ n l = List.map (n ↑ʳ_) l
infixl 5 _∙_
_∙_ : Graph → Graph → Graph
_∙_ g₁ g₂ = record
{ size = Graph.size g₁ Nat.+ Graph.size g₂
; nodes = Graph.nodes g₁ ++ Graph.nodes g₂
; edges = (Graph.edges g₁ ↑ˡᵉ Graph.size g₂) List.++
(Graph.size g₁ ↑ʳᵉ Graph.edges g₂)
; inputs = (Graph.inputs g₁ ↑ˡⁱ Graph.size g₂) List.++
(Graph.size g₁ ↑ʳⁱ Graph.inputs g₂)
; outputs = (Graph.outputs g₁ ↑ˡⁱ Graph.size g₂) List.++
(Graph.size g₁ ↑ʳⁱ Graph.outputs g₂)
} }
↑ˡ-Edge : ∀ {n} → (Fin n × Fin n) → ∀ m → (Fin (n Nat.+ m) × Fin (n Nat.+ m)) infixl 5 _↦_
↑ˡ-Edge (idx₁ , idx₂) m = (idx₁ ↑ˡ m , idx₂ ↑ˡ m) _↦_ : Graph → Graph → Graph
_↦_ g₁ g₂ = record
{ size = Graph.size g₁ Nat.+ Graph.size g₂
; nodes = Graph.nodes g₁ ++ Graph.nodes g₂
; edges = (Graph.edges g₁ ↑ˡᵉ Graph.size g₂) List.++
(Graph.size g₁ ↑ʳᵉ Graph.edges g₂) List.++
(List.cartesianProduct (Graph.outputs g₁ ↑ˡⁱ Graph.size g₂)
(Graph.size g₁ ↑ʳⁱ Graph.inputs g₂))
; inputs = Graph.inputs g₁ ↑ˡⁱ Graph.size g₂
; outputs = Graph.size g₁ ↑ʳⁱ Graph.outputs g₂
}
loop : Graph → Graph
loop g = record
{ size = Graph.size g
; nodes = Graph.nodes g
; edges = Graph.edges g List.++
List.cartesianProduct (Graph.outputs g) (Graph.inputs g)
; inputs = Graph.inputs g
; outputs = Graph.outputs g
}
_[_] : ∀ (g : Graph) → Graph.Index g → List BasicStmt _[_] : ∀ (g : Graph) → Graph.Index g → List BasicStmt
_[_] g idx = lookup (Graph.nodes g) idx _[_] g idx = lookup (Graph.nodes g) idx
record _⊆_ (g₁ g₂ : Graph) : Set where singleton : List BasicStmt → Graph
constructor Mk-⊆ singleton bss = record
field { size = 1
n : ℕ ; nodes = bss ∷ []
sg₂≡sg₁+n : Graph.size g₂ ≡ Graph.size g₁ Nat.+ n ; edges = []
newNodes : Vec (List BasicStmt) n ; inputs = zero ∷ []
nsg₂≡nsg₁++newNodes : cast sg₂≡sg₁+n (Graph.nodes g₂) ≡ Graph.nodes g₁ ++ newNodes ; outputs = zero ∷ []
e∈g₁⇒e∈g₂ : ∀ {e : Graph.Edge g₁} →
e ListMem.∈ (Graph.edges g₁) →
(↑ˡ-Edge e n) ListMem.∈ (subst (λ m → List (Fin m × Fin m)) sg₂≡sg₁+n (Graph.edges g₂))
private
castᵉ : ∀ {n m : ℕ} .(p : n ≡ m) → (Fin n × Fin n) → (Fin m × Fin m)
castᵉ p (idx₁ , idx₂) = (Fin.cast p idx₁ , Fin.cast p idx₂)
↑ˡ-assoc : ∀ {s n₁ n₂} (f : Fin s) (p : s Nat.+ (n₁ Nat.+ n₂) ≡ s Nat.+ n₁ Nat.+ n₂) →
f ↑ˡ n₁ ↑ˡ n₂ ≡ Fin.cast p (f ↑ˡ (n₁ Nat.+ n₂))
↑ˡ-assoc zero p = refl
↑ˡ-assoc {suc s'} {n₁} {n₂} (suc f') p rewrite ↑ˡ-assoc f' (sym (+-assoc s' n₁ n₂)) = refl
↑ˡ-Edge-assoc : ∀ {s n₁ n₂} (e : Fin s × Fin s) (p : s Nat.+ (n₁ Nat.+ n₂) ≡ s Nat.+ n₁ Nat.+ n₂) →
↑ˡ-Edge (↑ˡ-Edge e n₁) n₂ ≡ castᵉ p (↑ˡ-Edge e (n₁ Nat.+ n₂))
↑ˡ-Edge-assoc (idx₁ , idx₂) p
rewrite ↑ˡ-assoc idx₁ p
rewrite ↑ˡ-assoc idx₂ p = refl
↑ˡ-identityʳ : ∀ {s} (f : Fin s) (p : s Nat.+ 0 ≡ s) →
f ≡ Fin.cast p (f ↑ˡ 0)
↑ˡ-identityʳ zero p = refl
↑ˡ-identityʳ {suc s'} (suc f') p rewrite sym (↑ˡ-identityʳ f' (+-comm s' 0)) = refl
↑ˡ-Edge-identityʳ : ∀ {s} (e : Fin s × Fin s) (p : s Nat.+ 0 ≡ s) →
e ≡ castᵉ p (↑ˡ-Edge e 0)
↑ˡ-Edge-identityʳ (idx₁ , idx₂) p
rewrite sym (↑ˡ-identityʳ idx₁ p)
rewrite sym (↑ˡ-identityʳ idx₂ p) = refl
cast∈⇒∈subst : ∀ {n m : ℕ} (p : n ≡ m) (q : m ≡ n)
(e : Fin n × Fin n) (es : List (Fin m × Fin m)) →
castᵉ p e ListMem.∈ es →
e ListMem.∈ subst (λ m → List (Fin m × Fin m)) q es
cast∈⇒∈subst refl refl (idx₁ , idx₂) es e∈es
rewrite FinProp.cast-is-id refl idx₁
rewrite FinProp.cast-is-id refl idx₂ = e∈es
⊆-trans : ∀ {g₁ g₂ g₃ : Graph} → g₁ ⊆ g₂ → g₂ ⊆ g₃ → g₁ ⊆ g₃
⊆-trans {MkGraph s₁ ns₁ es₁} {MkGraph s₂ ns₂ es₂} {MkGraph s₃ ns₃ es₃}
(Mk-⊆ n₁ p₁@refl newNodes₁ nsg₂≡nsg₁++newNodes₁ e∈g₁⇒e∈g₂)
(Mk-⊆ n₂ p₂@refl newNodes₂ nsg₃≡nsg₂++newNodes₂ e∈g₂⇒e∈g₃)
rewrite cast-is-id refl ns₂
rewrite cast-is-id refl ns₃
with refl ← nsg₂≡nsg₁++newNodes₁
with refl ← nsg₃≡nsg₂++newNodes₂ =
record
{ n = n₁ Nat.+ n₂
; sg₂≡sg₁+n = +-assoc s₁ n₁ n₂
; newNodes = newNodes₁ ++ newNodes₂
; nsg₂≡nsg₁++newNodes = ++-assoc (+-assoc s₁ n₁ n₂) ns₁ newNodes₁ newNodes₂
; e∈g₁⇒e∈g₂ = λ {e} e∈g₁ →
cast∈⇒∈subst (sym (+-assoc s₁ n₁ n₂)) (+-assoc s₁ n₁ n₂) _ _
(subst (λ e' → e' ListMem.∈ es₃)
(↑ˡ-Edge-assoc e (sym (+-assoc s₁ n₁ n₂)))
(e∈g₂⇒e∈g₃ (e∈g₁⇒e∈g₂ e∈g₁)))
} }
open import MonotonicState _⊆_ ⊆-trans renaming (MonotonicState to MonotonicGraphFunction) buildCfg : Stmt → Graph
buildCfg ⟨ bs₁ ⟩ = singleton (bs₁ ∷ [])
buildCfg (s₁ then s₂) = buildCfg s₁ ↦ buildCfg s₂
buildCfg (if _ then s₁ else s₂) = singleton [] ↦ (buildCfg s₁ ∙ buildCfg s₂) ↦ singleton []
buildCfg (while _ repeat s) = loop (buildCfg s ↦ singleton [])
instance -- record _⊆_ (g₁ g₂ : Graph) : Set where
IndexRelaxable : Relaxable Graph.Index -- constructor Mk-⊆
IndexRelaxable = record -- field
{ relax = λ { (Mk-⊆ n refl _ _ _) idx → idx ↑ˡ n } -- n : ℕ
} -- sg₂≡sg₁+n : Graph.size g₂ ≡ Graph.size g₁ Nat.+ n
-- newNodes : Vec (List BasicStmt) n
EdgeRelaxable : Relaxable Graph.Edge -- nsg₂≡nsg₁++newNodes : cast sg₂≡sg₁+n (Graph.nodes g₂) ≡ Graph.nodes g₁ ++ newNodes
EdgeRelaxable = record -- e∈g₁⇒e∈g₂ : ∀ {e : Graph.Edge g₁} →
{ relax = λ g₁⊆g₂ (idx₁ , idx₂) → -- e ListMem.∈ (Graph.edges g₁) →
( Relaxable.relax IndexRelaxable g₁⊆g₂ idx₁ -- (↑ˡ-Edge e n) ListMem.∈ (subst (λ m → List (Fin m × Fin m)) sg₂≡sg₁+n (Graph.edges g₂))
, Relaxable.relax IndexRelaxable g₁⊆g₂ idx₂ --
) -- private
} -- castᵉ : ∀ {n m : ℕ} .(p : n ≡ m) → (Fin n × Fin n) → (Fin m × Fin m)
-- castᵉ p (idx₁ , idx₂) = (Fin.cast p idx₁ , Fin.cast p idx₂)
open Relaxable {{...}} --
-- ↑ˡ-assoc : ∀ {s n₁ n₂} (f : Fin s) (p : s Nat.+ (n₁ Nat.+ n₂) ≡ s Nat.+ n₁ Nat.+ n₂) →
pushBasicBlock : List BasicStmt → MonotonicGraphFunction Graph.Index -- f ↑ˡ n₁ ↑ˡ n₂ ≡ Fin.cast p (f ↑ˡ (n₁ Nat.+ n₂))
pushBasicBlock bss g = -- ↑ˡ-assoc zero p = refl
( record -- ↑ˡ-assoc {suc s'} {n₁} {n₂} (suc f') p rewrite ↑ˡ-assoc f' (sym (+-assoc s' n₁ n₂)) = refl
{ size = Graph.size g Nat.+ 1 --
; nodes = Graph.nodes g ++ (bss ∷ []) -- ↑ˡ-Edge-assoc : ∀ {s n₁ n₂} (e : Fin s × Fin s) (p : s Nat.+ (n₁ Nat.+ n₂) ≡ s Nat.+ n₁ Nat.+ n₂) →
; edges = List.map (λ e → ↑ˡ-Edge e 1) (Graph.edges g) -- ↑ˡ-Edge (↑ˡ-Edge e n₁) n₂ ≡ castᵉ p (↑ˡ-Edge e (n₁ Nat.+ n₂))
} -- ↑ˡ-Edge-assoc (idx₁ , idx₂) p
, ( Graph.size g ↑ʳ zero -- rewrite ↑ˡ-assoc idx₁ p
, record -- rewrite ↑ˡ-assoc idx₂ p = refl
{ n = 1 --
; sg₂≡sg₁+n = refl -- ↑ˡ-identityʳ : ∀ {s} (f : Fin s) (p : s Nat.+ 0 ≡ s) →
; newNodes = (bss ∷ []) -- f ≡ Fin.cast p (f ↑ˡ 0)
; nsg₂≡nsg₁++newNodes = cast-is-id refl _ -- ↑ˡ-identityʳ zero p = refl
; e∈g₁⇒e∈g₂ = λ e∈g₁ → x∈xs⇒fx∈fxs (λ e → ↑ˡ-Edge e 1) e∈g₁ -- ↑ˡ-identityʳ {suc s'} (suc f') p rewrite sym (↑ˡ-identityʳ f' (+-comm s' 0)) = refl
} --
) -- ↑ˡ-Edge-identityʳ : ∀ {s} (e : Fin s × Fin s) (p : s Nat.+ 0 ≡ s) →
) -- e ≡ castᵉ p (↑ˡ-Edge e 0)
-- ↑ˡ-Edge-identityʳ (idx₁ , idx₂) p
pushEmptyBlock : MonotonicGraphFunction Graph.Index -- rewrite sym (↑ˡ-identityʳ idx₁ p)
pushEmptyBlock = pushBasicBlock [] -- rewrite sym (↑ˡ-identityʳ idx₂ p) = refl
--
addEdges : ∀ (g : Graph) → List (Graph.Edge g) → Σ Graph (λ g' → g ⊆ g') -- cast∈⇒∈subst : ∀ {n m : ℕ} (p : n ≡ m) (q : m ≡ n)
addEdges (MkGraph s ns es) es' = -- (e : Fin n × Fin n) (es : List (Fin m × Fin m)) →
( record -- castᵉ p e ListMem.∈ es →
{ size = s -- e ListMem.∈ subst (λ m → List (Fin m × Fin m)) q es
; nodes = ns -- cast∈⇒∈subst refl refl (idx₁ , idx₂) es e∈es
; edges = es' List.++ es -- rewrite FinProp.cast-is-id refl idx₁
} -- rewrite FinProp.cast-is-id refl idx₂ = e∈es
, record --
{ n = 0 -- ⊆-trans : ∀ {g₁ g₂ g₃ : Graph} → g₁ ⊆ g₂ → g₂ ⊆ g₃ → g₁ ⊆ g₃
; sg₂≡sg₁+n = +-comm 0 s -- ⊆-trans {MkGraph s₁ ns₁ es₁} {MkGraph s₂ ns₂ es₂} {MkGraph s₃ ns₃ es₃}
; newNodes = [] -- (Mk-⊆ n₁ p₁@refl newNodes₁ nsg₂≡nsg₁++newNodes₁ e∈g₁⇒e∈g₂)
; nsg₂≡nsg₁++newNodes = cast-sym _ (++-identityʳ (+-comm s 0) ns) -- (Mk-⊆ n₂ p₂@refl newNodes₂ nsg₃≡nsg₂++newNodes₂ e∈g₂⇒e∈g₃)
; e∈g₁⇒e∈g₂ = λ {e} e∈es → -- rewrite cast-is-id refl ns₂
cast∈⇒∈subst (+-comm s 0) (+-comm 0 s) _ _ -- rewrite cast-is-id refl ns₃
(subst (λ e' → e' ListMem.∈ _) -- with refl ← nsg₂≡nsg₁++newNodes₁
(↑ˡ-Edge-identityʳ e (+-comm s 0)) -- with refl ← nsg₃≡nsg₂++newNodes₂ =
(ListMemProp.∈-++⁺ʳ es' e∈es)) -- record
} -- { n = n₁ Nat.+ n₂
) -- ; sg₂≡sg₁+n = +-assoc s₁ n₁ n₂
-- ; newNodes = newNodes₁ ++ newNodes₂
buildCfg : Stmt → MonotonicGraphFunction (Graph.Index ⊗ Graph.Index) -- ; nsg₂≡nsg₁++newNodes = ++-assoc (+-assoc s₁ n₁ n₂) ns₁ newNodes₁ newNodes₂
buildCfg ⟨ bs₁ ⟩ = pushBasicBlock (bs₁ ∷ []) map (λ g idx → (idx , idx)) -- ; e∈g₁⇒e∈g₂ = λ {e} e∈g₁ →
buildCfg (s₁ then s₂) = -- cast∈⇒∈subst (sym (+-assoc s₁ n₁ n₂)) (+-assoc s₁ n₁ n₂) _ _
(buildCfg s₁ ⟨⊗⟩ buildCfg s₂) -- (subst (λ e' → e' ListMem.∈ es₃)
update (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄)) → addEdges g ((idx₂ , idx₃) ∷ []) }) -- (↑ˡ-Edge-assoc e (sym (+-assoc s₁ n₁ n₂)))
map (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄)) → (idx₁ , idx₄) }) -- (e∈g₂⇒e∈g₃ (e∈g₁⇒e∈g₂ e∈g₁)))
buildCfg (if _ then s₁ else s₂) = -- }
(buildCfg s₁ ⟨⊗⟩ buildCfg s₂ ⟨⊗⟩ pushEmptyBlock ⟨⊗⟩ pushEmptyBlock) --
update (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄) , idx , idx') → -- open import MonotonicState _⊆_ ⊆-trans renaming (MonotonicState to MonotonicGraphFunction)
addEdges g ((idx , idx₁) ∷ (idx , idx₃) ∷ (idx₂ , idx') ∷ (idx₄ , idx') ∷ []) }) --
map (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄) , idx , idx') → (idx , idx') }) -- instance
buildCfg (while _ repeat s) = -- IndexRelaxable : Relaxable Graph.Index
(buildCfg s ⟨⊗⟩ pushEmptyBlock ⟨⊗⟩ pushEmptyBlock) -- IndexRelaxable = record
update (λ { g ((idx₁ , idx₂) , idx , idx') → -- { relax = λ { (Mk-⊆ n refl _ _ _) idx → idx ↑ˡ n }
addEdges g ((idx , idx') ∷ (idx , idx₁) ∷ (idx₂ , idx) ∷ []) }) -- }
map (λ { g ((idx₁ , idx₂) , idx , idx') → (idx , idx') }) --
-- EdgeRelaxable : Relaxable Graph.Edge
-- EdgeRelaxable = record
-- { relax = λ g₁⊆g₂ (idx₁ , idx₂) →
-- ( Relaxable.relax IndexRelaxable g₁⊆g₂ idx₁
-- , Relaxable.relax IndexRelaxable g₁⊆g₂ idx₂
-- )
-- }
--
-- open Relaxable {{...}}
--
-- pushBasicBlock : List BasicStmt → MonotonicGraphFunction Graph.Index
-- pushBasicBlock bss g =
-- ( record
-- { size = Graph.size g Nat.+ 1
-- ; nodes = Graph.nodes g ++ (bss ∷ [])
-- ; edges = List.map (λ e → ↑ˡ-Edge e 1) (Graph.edges g)
-- }
-- , ( Graph.size g ↑ʳ zero
-- , record
-- { n = 1
-- ; sg₂≡sg₁+n = refl
-- ; newNodes = (bss ∷ [])
-- ; nsg₂≡nsg₁++newNodes = cast-is-id refl _
-- ; e∈g₁⇒e∈g₂ = λ e∈g₁ → x∈xs⇒fx∈fxs (λ e → ↑ˡ-Edge e 1) e∈g₁
-- }
-- )
-- )
--
-- pushEmptyBlock : MonotonicGraphFunction Graph.Index
-- pushEmptyBlock = pushBasicBlock []
--
-- addEdges : ∀ (g : Graph) → List (Graph.Edge g) → Σ Graph (λ g' → g ⊆ g')
-- addEdges (MkGraph s ns es) es' =
-- ( record
-- { size = s
-- ; nodes = ns
-- ; edges = es' List.++ es
-- }
-- , record
-- { n = 0
-- ; sg₂≡sg₁+n = +-comm 0 s
-- ; newNodes = []
-- ; nsg₂≡nsg₁++newNodes = cast-sym _ (++-identityʳ (+-comm s 0) ns)
-- ; e∈g₁⇒e∈g₂ = λ {e} e∈es →
-- cast∈⇒∈subst (+-comm s 0) (+-comm 0 s) _ _
-- (subst (λ e' → e' ListMem.∈ _)
-- (↑ˡ-Edge-identityʳ e (+-comm s 0))
-- (ListMemProp.∈-++⁺ʳ es' e∈es))
-- }
-- )
--
-- buildCfg : Stmt → MonotonicGraphFunction (Graph.Index ⊗ Graph.Index)
-- buildCfg ⟨ bs₁ ⟩ = pushBasicBlock (bs₁ ∷ []) map (λ g idx → (idx , idx))
-- buildCfg (s₁ then s₂) =
-- (buildCfg s₁ ⟨⊗⟩ buildCfg s₂)
-- update (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄)) → addEdges g ((idx₂ , idx₃) ∷ []) })
-- map (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄)) → (idx₁ , idx₄) })
-- buildCfg (if _ then s₁ else s₂) =
-- (buildCfg s₁ ⟨⊗⟩ buildCfg s₂ ⟨⊗⟩ pushEmptyBlock ⟨⊗⟩ pushEmptyBlock)
-- update (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄) , idx , idx') →
-- addEdges g ((idx , idx₁) ∷ (idx , idx₃) ∷ (idx₂ , idx') ∷ (idx₄ , idx') ∷ []) })
-- map (λ { g ((idx₁ , idx₂) , (idx₃ , idx₄) , idx , idx') → (idx , idx') })
-- buildCfg (while _ repeat s) =
-- (buildCfg s ⟨⊗⟩ pushEmptyBlock ⟨⊗⟩ pushEmptyBlock)
-- update (λ { g ((idx₁ , idx₂) , idx , idx') →
-- addEdges g ((idx , idx') ∷ (idx , idx₁) ∷ (idx₂ , idx) ∷ []) })
-- map (λ { g ((idx₁ , idx₂) , idx , idx') → (idx , idx') })

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@@ -5,48 +5,24 @@ open import Language.Semantics
open import Language.Graphs open import Language.Graphs
open import Language.Traces open import Language.Traces
open import MonotonicState _⊆_ ⊆-trans renaming (MonotonicState to MonotonicGraphFunction) open import Data.Fin as Fin using (zero)
open import Utils using (_⊗_; _,_) open import Data.List using (_∷_; [])
open Relaxable {{...}} open import Data.Product using (Σ; _,_)
open import Data.Fin using (zero) open import Relation.Binary.PropositionalEquality as Eq using (_≡_; refl)
open import Data.List using (List; _∷_; [])
open import Data.Vec using (_∷_; [])
open import Data.Vec.Properties using (cast-is-id; lookup-++ˡ; lookup-++ʳ)
open import Relation.Binary.PropositionalEquality as Eq using (_≡_; refl; sym; trans; subst)
relax-preserves-[]≡ : ∀ (g₁ g₂ : Graph) (g₁⊆g₂ : g₁ ⊆ g₂) (idx : Graph.Index g₁) → buildCfg-input : ∀ (s : Stmt) → let g = buildCfg s in Σ (Graph.Index g) (λ idx → Graph.inputs g ≡ idx ∷ [])
g₁ [ idx ] ≡ g₂ [ relax g₁⊆g₂ idx ] buildCfg-input ⟨ bs₁ ⟩ = (zero , refl)
relax-preserves-[]≡ g₁ g₂ (Mk-⊆ n refl newNodes nsg₂≡nsg₁++newNodes _) idx buildCfg-input (s₁ then s₂)
rewrite cast-is-id refl (Graph.nodes g₂) with (idx , p) ← buildCfg-input s₁ rewrite p = (_ , refl)
with refl ← nsg₂≡nsg₁++newNodes = sym (lookup-++ˡ (Graph.nodes g₁) _ _) buildCfg-input (if _ then s₁ else s₂) = (zero , refl)
buildCfg-input (while _ repeat s)
with (idx , p) ← buildCfg-input s rewrite p = (_ , refl)
instance buildCfg-output : ∀ (s : Stmt) → let g = buildCfg s in Σ (Graph.Index g) (λ idx → Graph.outputs g ≡ idx ∷ [])
NodeEqualsMonotonic : ∀ {bss : List BasicStmt} → buildCfg-output ⟨ bs₁ ⟩ = (zero , refl)
MonotonicPredicate (λ g n → g [ n ] ≡ bss) buildCfg-output (s₁ then s₂)
NodeEqualsMonotonic = record with (idx , p) ← buildCfg-output s₂ rewrite p = (_ , refl)
{ relaxPredicate = λ g₁ g₂ idx g₁⊆g₂ g₁[idx]≡bss → buildCfg-output (if _ then s₁ else s₂) = (_ , refl)
trans (sym (relax-preserves-[]≡ g₁ g₂ g₁⊆g₂ idx)) g₁[idx]≡bss buildCfg-output (while _ repeat s)
} with (idx , p) ← buildCfg-output s rewrite p = (_ , refl)
pushBasicBlock-works : ∀ (bss : List BasicStmt) → Always (λ g idx → g [ idx ] ≡ bss) (pushBasicBlock bss)
pushBasicBlock-works bss = MkAlways (λ g → lookup-++ʳ (Graph.nodes g) (bss ∷ []) zero)
TransformsEnv : ∀ (ρ₁ ρ₂ : Env) → DependentPredicate (Graph.Index ⊗ Graph.Index)
TransformsEnv ρ₁ ρ₂ g (idx₁ , idx₂) = Trace {g} idx₁ idx₂ ρ₁ ρ₂
instance
TransformsEnvMonotonic : ∀ {ρ₁ ρ₂ : Env} → MonotonicPredicate (TransformsEnv ρ₁ ρ₂)
TransformsEnvMonotonic = {!!}
buildCfg-sufficient : ∀ {ρ₁ ρ₂ : Env} {s : Stmt} → ρ₁ , s ⇒ˢ ρ₂ → Always (TransformsEnv ρ₁ ρ₂) (buildCfg s)
buildCfg-sufficient {ρ₁} {ρ₂} {⟨ bs ⟩} (⇒ˢ-⟨⟩ ρ₁ ρ₂ bs ρ₁,bs⇒ρ₂) =
pushBasicBlock-works (bs ∷ [])
map-reason
(λ g idx g[idx]≡[bs] → Trace-single (subst (ρ₁ ,_⇒ᵇˢ ρ₂)
(sym g[idx]≡[bs])
(ρ₁,bs⇒ρ₂ ∷ [])))
buildCfg-sufficient {ρ₁} {ρ₂} {s₁ then s₂} (⇒ˢ-then ρ₁ ρ ρ₂ s₁ s₂ ρ₁,s₁⇒ρ₂ ρ₂,s₂⇒ρ₃) =
(buildCfg-sufficient ρ₁,s₁⇒ρ₂ ⟨⊗⟩-reason buildCfg-sufficient ρ₂,s₂⇒ρ₃)
update-reason {!!}
map-reason {!!}

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@@ -1,9 +1,11 @@
module Utils where module Utils where
open import Agda.Primitive using () renaming (_⊔_ to _⊔ℓ_) open import Agda.Primitive using () renaming (_⊔_ to _⊔ℓ_)
open import Data.Product as Prod using ()
open import Data.Nat using (ℕ; suc) open import Data.Nat using (ℕ; suc)
open import Data.List using (List; []; _∷_; _++_) renaming (map to mapˡ) open import Data.List using (List; cartesianProduct; []; _∷_; _++_) renaming (map to mapˡ)
open import Data.List.Membership.Propositional using (_∈_) open import Data.List.Membership.Propositional using (_∈_)
open import Data.List.Membership.Propositional.Properties as ListMemProp using ()
open import Data.List.Relation.Unary.All using (All; []; _∷_; map) open import Data.List.Relation.Unary.All using (All; []; _∷_; map)
open import Data.List.Relation.Unary.Any using (Any; here; there) -- TODO: re-export these with nicer names from map open import Data.List.Relation.Unary.Any using (Any; here; there) -- TODO: re-export these with nicer names from map
open import Function.Definitions using (Injective) open import Function.Definitions using (Injective)
@@ -78,3 +80,9 @@ proj₁ (v , _) = v
proj₂ : ∀ {a p q} {A : Set a} {P : A → Set p} {Q : A → Set q} {a : A} → (P ⊗ Q) a → Q a proj₂ : ∀ {a p q} {A : Set a} {P : A → Set p} {Q : A → Set q} {a : A} → (P ⊗ Q) a → Q a
proj₂ (_ , v) = v proj₂ (_ , v) = v
∈-cartesianProduct : ∀ {a b} {A : Set a} {B : Set b}
{x : A} {xs : List A} {y : B} {ys : List B} →
x ∈ xs → y ∈ ys → (x Prod., y) ∈ cartesianProduct xs ys
∈-cartesianProduct {x = x} (here refl) y∈ys = ListMemProp.∈-++⁺ˡ (x∈xs⇒fx∈fxs (x Prod.,_) y∈ys)
∈-cartesianProduct {x = x} {xs = x' ∷ _} {ys = ys} (there x∈rest) y∈ys = ListMemProp.∈-++⁺ʳ (mapˡ (x' Prod.,_) ys) (∈-cartesianProduct x∈rest y∈ys)