From 55227a33c3c60db0afef5efc92ba22d70dd07718 Mon Sep 17 00:00:00 2001
From: Billy Moses <wmoses@google.com>
Date: Sat, 23 May 2026 10:06:44 -0500
Subject: [PATCH] Handle inactive methods

---
 src/internal_rules/inactive.jl |  6 ++++++
 src/typeutils/make_zero.jl     | 18 ++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/internal_rules/inactive.jl b/src/internal_rules/inactive.jl
index 93449cf779..fee228511e 100644
--- a/src/internal_rules/inactive.jl
+++ b/src/internal_rules/inactive.jl
@@ -129,6 +129,12 @@ end
 function EnzymeRules.inactive_noinl(::typeof(Base.dataids), args...)
     return nothing
 end
+function EnzymeRules.inactive_noinl(::typeof(Base.signature_type), args...) 
+    return nothing
+end
+function EnzymeRules.inactive_noinl(::typeof(Base.methods), args...) 
+    return nothing
+end
 
 @inline EnzymeRules.inactive_type(v::Type{Nothing}) = true
 @inline EnzymeRules.inactive_type(v::Type{Union{}}) = true
diff --git a/src/typeutils/make_zero.jl b/src/typeutils/make_zero.jl
index 75c497eb7f..2b82bf8b54 100644
--- a/src/typeutils/make_zero.jl
+++ b/src/typeutils/make_zero.jl
@@ -197,6 +197,24 @@ end
     return res
 end
 
+@inline function EnzymeCore.make_zero(
+        ::Type{Core.SimpleVector},
+        seen::IdDict,
+        prev::Core.SimpleVector,
+        ::Val{copy_if_inactive} = Val(false),
+    )::Core.SimpleVector where {copy_if_inactive}
+    if haskey(seen, prev)
+        return seen[prev]
+    end
+    data = []
+    for v in prev
+        push!(data, EnzymeCore.make_zero(Core.Typeof(v), seen, v, Val(copy_if_inactive)))
+    end
+    newa = Core.svec(data)
+    seen[prev] = newa
+    return newa
+end
+
 @inline function EnzymeCore.make_zero(
         ::Type{RT},
         seen::IdDict,