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chore: add axiom for the correctness of refinement in rewrite patterns #1809

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Merged
tobiasgrosser merged 4 commits into from
Dec 18, 2025
Merged

chore: add axiom for the correctness of refinement in rewrite patterns #1809

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110a4d7
chore: add axiom for correctness of refinement
luisacicolini Oct 29, 2025
fbe0311
Merge branch 'main' into axiom-ref-correctness
luisacicolini Dec 7, 2025
6727e32
Merge branch 'main' into axiom-ref-correctness
luisacicolini Dec 7, 2025
a016246
Merge branch 'main' into axiom-ref-correctness
tobiasgrosser Dec 18, 2025
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4 changes: 3 additions & 1 deletion SSA/Projects/LLVMRiscV/PeepholeRefine.lean
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Expand Up @@ -31,6 +31,8 @@ structure LLVMPeepholeRewriteRefine (w : Nat) (Γ : List Ty) where
PoisonOr.IsRefinedBy (lhs.denote V |>.getN 0) (rhs.denote V |>.getN 0) := by
simp_lowering <;> bv_decide

axiom refinement_correctness {p: Prop} : p

/-- `LLVMToRiscvPeepholeRewriteRefine.toPeepholeUNSOUND` is a wrapper to pass the rewrites to the
Peephole Rewriter, with a `sorry` replacing the correctness proof which cannot be provided,
given that we are working with refinement semantics. -/
Expand All @@ -40,7 +42,7 @@ def LLVMToRiscvPeepholeRewriteRefine.toPeepholeUNSOUND
{
lhs := self.lhs
rhs := self.rhs
correct := by sorry
correct := refinement_correctness
}

@[simp_riscv] lemma toType_bv : TyDenote.toType (Ty.riscv (.bv)) = BitVec 64 := rfl
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